1/16 Bucyrus-Monighan Walking Dragline [Archive]

9W Monighan

08-16-2010, 06:45 AM

First time on this site some of you guys know me but I'm a refugee from Garden Trucking. This is my build of a 9W Bucyrus-Monighan walking dragline that I've been building for about 8-9yrs now. The dimensions are: 150''L x 45''H x34''W the boom is 120''L It weighs about 190lbs now. I have it operational now and still need to build the boom and finish the bucket. There are several pieces that need machined on the house also.
Here's a link to my videos: http://www.youtube.com/user/Scentlessapprentice9#p/u
Here's a link to my pictures:
http://my.imageshack.us/v_images.php
http://a.imageshack.us/img821/7427/1003371d.jpg

ihbuilder

08-16-2010, 07:35 AM

HI Steve glad you made it .

IHSteve

JAMMER

08-16-2010, 11:03 AM

9W looking good saw some pictures on 4x4 of it. Ed

modelman

08-16-2010, 11:25 AM

Steve-your imageshack pics are not available to look at. I had the same problem trying to show my build pics on photobucket. I don't know how to fix it. Were you able to get any video at Brownsville?

9W Monighan

08-16-2010, 12:14 PM

Here's all I got. (too busy BSing and operating) I managed to get these while my kid was on it. I have some video but not that great. I'll get to that later. I hope SmallHaul Scott took some.

http://a.imageshack.us/img13/6408/1003378r.jpg

http://a.imageshack.us/img804/1134/1003379.jpg

http://a.imageshack.us/img225/8183/1003383.jpg

http://a.imageshack.us/img839/4928/1003384.jpg

http://a.imageshack.us/img839/6465/1003385.jpg

modelman

08-16-2010, 01:16 PM

Looks like fun! Wish I had a load of dirt like that. My wife wouldn't like a load of top-soil piled in the back yard.:mad:

JAMMER

08-16-2010, 05:37 PM

9 W those pictures of it working look Poor scott, he looks like a miniature in comparison to yours. Ed

dirtpusher9

08-16-2010, 06:25 PM

Great to see it working Steve. Be cool to have the 9 there with it. Who's in the pic's?

SmallHaul

08-16-2010, 08:44 PM

tracksntreadslou

08-16-2010, 09:36 PM

mog

08-16-2010, 11:15 PM

9W Monighan

08-17-2010, 07:29 AM

Steve I was so consumed with all of the full scale equipment I didn't take any pics of our RC models.:o

Ed, actually all of the rc models in that photo are 1/16 scale. But, yes the Tonkas like very small next to Steve's 9W.

Hey Scott, I'm glad you and your Dad enjoyed your selves so much. I figured once you got on some real iron you would get addicted:D How's the Mack tandem's bed look? I know it needs some new side boards. I hope I didn't chip it up too bad. Once we get one of those Specktrum radios I know this thing won't glitch:o I didn't take but 4 pictures all weekend (as usual) because I thought you were snapping some. Mike was watching your video this morning of you on Howard's Insley dragline. I never ran one piece of equipment all weekend because I was so infactuated with making my drag work in the dirt for the first time since my 8yr build:D

9W Monighan

08-17-2010, 07:41 AM

Hey Steve Looks great ...good photos and nice pile of dire ...your equipment probably got as much attention as the 1 ;1 machine and you can bet no one will ever bring a 9 W to the show at least the 1to 1

I think your right Lou, My older son's girlfriend was there watching and commented "There's more people watching your dad's machine"
But the 1:1 1926 Erie B and 1913 Thew "0" steam shovels really get the looks.
One of my buddies,Scotty, said we ought to cut up all the big stuff and play with these because their easier to move:D Friday evening we had about 20 people standing around in the dark watching and running by pick-up truck headlights SmallHaul Scott's machines. A couple of times his trucks went over the "High Wall":o

9W Monighan

08-17-2010, 07:50 AM

glad too see you guys are having some fun with your toys keep up the good work. not that it would work for your but TWC collectibles has a very nice 8750 bucket that just came out and well you can get in CQMS there is only set up that i like see and that is esco but than i might be bias as we sell esco at work.

I looked one of those buckets over and they don't look like they would hold up and their not heavy enough. I would like to get all three and put them on my shelf with my other two dragline salesman samples. One is a Red Plastic 5-7yd ESCO witch I scaled for my 9CY steel bucket and the other is a very nice 4CY PAGE Engineering Patent or Salesman sample. Both are complete with all the rigging and I am going to scale those pieces too and even put the wedges in the sockets.

9W Monighan

08-17-2010, 08:10 AM

Here's the videos I managed to remember to take. D9 Joe,That's my son Mike at the radio. He was just getting used to the operation and it's a little jerky:o
Once both of us got on to it,it would respond very nicely. By Sunday It was really producing material,We had a pile about 30'' high 65'' across -about 2900 scale CY. and I was able to load Scott's Mack without hitting the bed:rolleyes: My bucket is just big enough to fit in side his bed. It usually takes 2 full buckets to fill his bed.

http://www.youtube.com/user/Scentlessapprentice9#p/u

http://www.youtube.com/user/Scentlessapprentice9#p/u/1/MMyO-kaMkng

http://www.youtube.com/user/Scentlessapprentice9#p/u/2/mrUtgb-uPgE

JAMMER

08-17-2010, 08:49 AM

Hey 9W those are some nice videos. Ed

JAMMER

08-17-2010, 08:53 AM

Steve was that you running that for real dragline? Ed

sparkycuda

08-17-2010, 09:17 AM

Unbelievable how well the models move dirt just like the 1:1's. When put in a true working environment, they look so real. Interesting, the comment about more people watching the models that the real things. Anything that is different and well done, people will watch and wonder. Great!

Ken Sharp

modelman

08-17-2010, 11:09 AM

Great videos steve-that dirt looks like perfect digging for models. Is their 110 power available there?

SmallHaul

08-17-2010, 12:23 PM

ihbuilder

08-17-2010, 01:30 PM

Steve, There is only one little mark on the left side board. Actually I was hoping there would be more marks/dents on it so, that you can tell it has been used to haul dirt.:D I could mark it up with a screwdriver but, that would be faking it...not:cool:

It was funny, when someone rolled the old Ford tonka dump truck they felt horrible and I just laughed because the entire truck is metal except for the axle housings so, rolling it won't hurt anything.

I was amazed that after all of my equipment being run by so many people only the bull dozer broke. The dozer is an easy fix too, the left drive wheel just needs to be re-glued to the hub. We were using the 4x4 tonka DT to push the Mack up the hill a couple times and I lost one of the headlights but, when I unloaded the 4runner yesterday I found the headlight laying on the floor!:cool:

guess I should have had the binder there to at least pull the mack around :p
Steve great vids

IHSteve

9W Monighan

08-17-2010, 02:15 PM

Steve, There is only one little mark on the left side board. Actually I was hoping there would be more marks/dents on it so, that you can tell it has been used to haul dirt.:D I could mark it up with a screwdriver but, that would be faking it...not:cool:

It was funny, when someone rolled the old Ford tonka dump truck they felt horrible and I just laughed because the entire truck is metal except for the axle housings so, rolling it won't hurt anything.

I was amazed that after all of my equipment being run by so many people only the bull dozer broke. The dozer is an easy fix too, the left drive wheel just needs to be re-glued to the hub. We were using the 4x4 tonka DT to push the Mack up the hill a couple times and I lost one of the headlights but, when I unloaded the 4runner yesterday I found the headlight laying on the floor!:cool:

HMMM, Maybe I can take care of that at York this winter:D I'm sure I can put some more nicks in it:D I saw on scale4x4 someone makes thin aluminum truck bodies and maybe he can make dump bodies out of a little thicker material, and then let me load it and turn Scotty loose driving the Mack:eek:

Tom, We have 110V now in the big green building in the background.

Ed, Which dragline? Orange? that's SmallHaul

CatdrvR

08-18-2010, 09:34 AM

9W Monighan

08-19-2010, 09:31 PM

Absolutely stunning piece of equipment you got there Monigan. When do you expect to finish the superstructure with side panels and such? She will be even more pretty when she's got some paint on her. I will definitely have to see this machine in person someday. Keep up the great work.

Dan

I am working on the boom but stopped for the summer. I should have most the superstructure done by January and hopefully most of the boom. I only want to skin half of the machine because I have most of the internal machinery near exact as a real machine. I've never seen this done on a dragline model before and I have seen the "Little Giant" stripping shovel at the Big Brutis museum in Kansas that has what appears to be all the machinery.

trucker n

08-19-2010, 10:18 PM

sweet

Southgate

08-23-2010, 05:00 AM

9W Monighan

08-23-2010, 07:35 PM

You guys are giving me a headache.

I mean that in the nicest way. I've loved big equipment all my life, and have modeled in 1/25 scale for most of it. I get plenty of respect for my work on the model forums, but I get here, what, a couple days ago now. I feel like such a runt! Looking at this stuff just blows me away.

This machine and others I've seen here makes me realize that I will have to considder this a whole different league than what I'm in, but I can certainly appreciate it none the less. Dan

This machine gives me a headache now and then considering the thousands of hours I've spent designing documenting and machining. But when I took it out to show how it digs all that was behind me other than walking it into place. That gets a little tedious. It definitely needs 2-3 people watching what's going on. I know now I have to weld the cleats on the bottom of the shoes too. If it walks up much of a grade it slips especially if there's not enough dirt under a shoe.:eek: My owners manual says: not to walk a new machine up more than a 7% grade and once broken in no more than a 10% grade. I think we were a bit over that in spots.:D

9W Monighan

08-24-2010, 11:56 AM

Here's a flashback to a time consuming job building my swing gearboxs. I still need to machine the second housing though but the machine performs perfect with only one. I have drawings of the real gearing and I made the gears exactly only 1/16th scale.

http://a.imageshack.us/img504/6130/9wmodel013lc8.jpg

http://a.imageshack.us/img58/51/swingunit308004tz4.jpg

http://a.imageshack.us/img208/8707/swingunit308002hn6.jpg

http://a.imageshack.us/img212/5743/swingunit308005pw3.jpg

http://a.imageshack.us/img223/9959/swingunit308015rb1.jpg

http://a.imageshack.us/img223/6264/swingunit308016vf0.jpg

http://a.imageshack.us/img115/158/swingunit308017vn4.jpg

Southgate

08-25-2010, 12:39 AM

Are you a machinist by trade? everything looks SO professional.

tc1cat

08-25-2010, 09:15 AM

This is an outstanding build. Was watching it on Garden until it vanished. Hope to see it in person someday!!

9W Monighan

08-25-2010, 09:49 AM

Southgate , Yes I have a small machine shop and fab shop.

tc1cat, You will need to make your machine operational so you can bring it to York, PA this January along with D9 Joe to do some pushing at the CabinFever Expo.

JAMMER

08-25-2010, 09:57 AM

9W excellent work I wish I could do that but just a dumb retired truck driver. Ed

td9clyde

08-25-2010, 05:04 PM

Awsome work 9W your shovel/ dragline???? is going to be sooooo sweet you don't see alot of those machines around here except at the old gravel pits and they have been retired and setting in the same place for decades lol very nice machine work i may have to try some of that on my next models after the scraper is done ....lol couple more years maybe sooner i donno nice job and keep up the great work

cummingsman29

08-26-2010, 10:37 PM

That is one big toy! Awesome work!!

Stuff

08-27-2010, 11:36 AM

coming along nicely! havent followed up on this thread since garden closed.

sparkycuda

08-27-2010, 11:40 AM

I've been following this build and have always appreciated the workmanship and machining. But I completely lost it when you said the gears were made to 1/16 scale! The gearcase and inner workings are just a marvel of precision manufacturing. Thanks for all the pictures and explanations - they keep me inspired to keep working on my dozer.

Ken

9W Monighan

08-29-2010, 03:37 PM

Thanks everybody.
I just got back from the Antique Caterpillar-ACMOC national show in Portland Indiana. I have some interesting pictures of a crane that you sit on to operate a clam bucket. There was supposed to be another P&H shovel one of my friends told me about but the flea market is so big I didn't go looking for it. I'll post some pictures tomorrow.

lorenzo

08-30-2010, 02:26 PM

Hey Steve,

will the boom be part of the final boom or is it just a temp one?

9W Monighan

08-30-2010, 08:30 PM

Hey Steve,

will the boom be part of the final boom or is it just a temp one?

That's just some 1/8x3/8 flat bar tacked together. Each bucket full weighs approximately 10 lbs. and it holds OK. The real boom I'm working on is made of brass tee bar I've milled from solid like all my "I" beams.

9W Monighan

09-03-2010, 10:52 AM

Here's one of the first things I built back in April 02'
http://a.imageshack.us/img132/2297/57abb7d1936093uq1.jpg

tc1cat

09-03-2010, 12:41 PM

Was watching this build on the Garden and have been constantly amazed by what you have made. Being a machinist by trade, lets me know how much time you have invested in this build. Hopefully, I will see this outstanding machine built and painted digging in some dirt in the near future.

9W Monighan

09-03-2010, 09:22 PM

Since I don't have anything new to add I'll be posting some old build photos for everybody's entertainment. Here's a shot of the tub removed from the rotating frame showing the rotary slip ring that transfers the power up to the machinery deck. Notice the 135# marking. That was the weight of the rotating frame less walking cams.
http://a.imageshack.us/img509/9978/9wmodel001xz8.jpg (http://img509.imageshack.us/i/9wmodel001xz8.jpg/) Uploaded with ImageShack.us (http://imageshack.us)

http://a.imageshack.us/img509/6051/9wmodel002rd1.jpg (http://img509.imageshack.us/i/9wmodel002rd1.jpg/) Uploaded with ImageShack.us (http://imageshack.us)

Here's another old picture of the revolving frame....
http://a.imageshack.us/img516/1873/9wmodel006jk5.jpg (http://img516.imageshack.us/i/9wmodel006jk5.jpg/) Uploaded with ImageShack.us (http://imageshack.us)

This one should have been in the earlier post on the swing gear box that shows me fitting the box for proper gear alignment on the deck.
http://a.imageshack.us/img124/9027/9wmodel011ji0.jpg (http://img124.imageshack.us/i/9wmodel011ji0.jpg/) Uploaded with ImageShack.us (http://imageshack.us)

modelman

09-03-2010, 09:44 PM

Nice work steve-in pics 1 & 2 I see holes tapped on the main rails between the swing gear and the slip ring. Just curious, what are these holes for?

9W Monighan

09-03-2010, 10:26 PM

Ah, that was a huge mistake! I originally was going to make collector rings like the real machine only 14 circuits. I bought a $45 piece of Static dissipating UHMW plastic to machine out then press copper rings in each. After I spent a whole day machining them I was reading that the material was a good insulator only to find that was a typo in the McMaster Carr book. Static Dissipating CONDUCTS electricity! The salesman said I could send the mtl back but I told him I already cut it up. So I scrapped the idea and started buying rotary slip rings that came up on Ebay and I bought several to try. Now I know how much current the machine uses I may be able to put a slip ring in with more conductors. I have one the same size and make but 24 wires. With this type I could hard wire the whole machine and forget about using a radio to control it.

mog

09-04-2010, 09:30 AM

looks good mabey i can get you some pic of a P&H 9020 it's going down hear on tusday and they are going to be lifting the tub off the center pin BIG JOB hope to get out of the shop and see how they lift it. i saw some mammoet trucks in town not shere if they will be doing the lift.

modelman

09-04-2010, 01:20 PM

Thanks steve-I really like that slip ring you used. The one I used in my shovel had such small wires I really struggled with it. Also I needed more wires.

dirtpusher9

09-05-2010, 10:45 PM

Hey Steve, you being a fine machinist, it sure would be cool if you could build the hydraulic pumps we use in this hobby. The kind off work you produce it would be an easy build. And it would keep the money in the good ol USA.

9W Monighan

09-07-2010, 12:03 AM

I would have to see one. I could add this to my long list of things people want me to make along with my own projects:D

9W Monighan

09-08-2010, 12:38 PM

Here's some pictures of the load drive and hoist drum parts....
Hogging out a pice of 2x4 steel.
http://a.imageshack.us/img294/4864/9wmodel010ca2.jpg

Profile
http://a.imageshack.us/img206/4649/9wmodel011kj1.jpg

Walking jaw clutch
http://a.imageshack.us/img301/2530/9wmodel012ed0.jpg

One of the bronze two piece bushings on load shaft
http://a.imageshack.us/img291/7711/9wmodel013jq1.jpg

milling out the bearing support for the walking pinion
http://a.imageshack.us/img179/6388/9wmodel014ot4.jpg

Boring a bearing cap
http://a.imageshack.us/img294/5759/9wmodel015qu9.jpg

Ditto
http://a.imageshack.us/img206/953/9wmodel016mo1.jpg

Some parts of the main machinery frame side
http://a.imageshack.us/img301/103/9wmodel017um8.jpg

Mock up of load drum
http://a.imageshack.us/img291/4439/9wmodel018hh8.jpg

Mounting hole for walking shaft bearing block
http://a.imageshack.us/img249/2491/9wmodel019wp5.jpg

Just fit on the table
http://a.imageshack.us/img516/7149/9wmodel020nd9.jpg

boring hoist motor mount
http://a.imageshack.us/img510/1655/9wmodel023gq5.jpg

Cutting Hoist laggin
http://a.imageshack.us/img259/5889/9wmodel028ha1.jpg

Hoist assembly parts
http://a.imageshack.us/img516/7203/9wmodel024qy3.jpg

assembled hoist
http://a.imageshack.us/img249/2011/9wmodel025cy1.jpg

pugs

09-08-2010, 12:42 PM

Very nice work

sparkycuda

09-08-2010, 04:04 PM

tracksntreadslou

09-08-2010, 09:11 PM

This model is just amazing... The hoist drum/shaft assy looks just like the ones that have come through our repairs shops over the years. Showed the picture to one of our service techs and he was hard-pressed to believe it was a 1/16 model! Just a marvel of machine work.

Ken

I agee Great work steve..If you need some phots of a Jung Pump torn down let me know ...These pumps are rated for a 120 bar ...think thats whats running Ed machine

Hey Steve I have access to all kinds of coal about 30 minutes away ..Say the word and i will get a couple pickup loads and bury a layer in my back yard .LOL ..would give you a couple years work..after you strip then we can haul it over to "Steamer" robs and he can run it in his locomotives :D

9W Monighan

09-08-2010, 09:27 PM

I agee Great work steve..If you need some phots of a Jung Pump torn down let me know ...These pumps are rated for a 120 bar ...think thats whats running Ed machine

Hey Steve I have access to all kinds of coal about 30 minutes away ..Say the word and i will get a couple pickup loads and bury a layer in my back yard .LOL ..would give you a couple years work..after you strip then we can haul it over to "Steamer" robs and he can run it in his locomotives :D
I don't need to look very far, about 25'below my house the Pittsburgh seam is there that's about 9' thick:D

tracksntreadslou

09-08-2010, 09:39 PM

Lol...Maybe about 200 years of work for the 9W :):D

SmallHaul

09-08-2010, 09:49 PM

Steve, thanks for taking the time to re-post these pictures! More, more...

It still amazes me to look at all of the work you have done.

dirtpusher9

09-09-2010, 08:22 PM

Wish you could work on this thing all the time, I'm ready to see it finished. It's going to be sweet.

9W Monighan

09-10-2010, 09:15 AM

Here are some photos of the walking machinery. I can't seen to find more. I wonder if that roll of film is still in my old camera that quit before I used digital.

Mock up of the upper and lower pices
http://img132.imageshack.us/img132/5839/0cc7f24d39843co4.jpg

Rough Milling the kidney shape on the matching half's
http://img132.imageshack.us/img132/1994/e823a69a1396866ox6.jpg

http://img132.imageshack.us/img132/78/22cce336964934tu4.jpg

Final finish and rounding over the track
http://img132.imageshack.us/img132/6555/c3d7853c1272386la6.jpg

Profiling the T shaped pieces that that cam pushes against
http://img132.imageshack.us/img132/1810/abd3f16c1151859cx9.jpg
http://img132.imageshack.us/img132/8070/423f6363889513rb4.jpg
http://img132.imageshack.us/img132/1033/c58166f81162749qh2.jpg
http://img132.imageshack.us/img132/8070/423f6363889513rb4.jpg

More milling and drilling
http://img132.imageshack.us/img132/3858/c09454211124493yn4.jpg
http://img132.imageshack.us/img132/7469/df596dc7916595jb1.jpg

Cam Milling
http://img132.imageshack.us/img132/4151/a44525e9900372jf8.jpg

http://img132.imageshack.us/img132/1460/97d29854281898yo3.jpg

Matching the square drive on walking shaft for a perfect press fit
http://img132.imageshack.us/img132/3410/0a7671332824092vj1.jpg
Milling the mount on the shoe
http://img132.imageshack.us/img132/7720/25542228943977co7.jpg

Milling the taper and bull nose on the bottom of walking unit
http://img132.imageshack.us/img132/1372/1d8690ea994127he5.jpg

2 almost completed walking units
http://img132.imageshack.us/img132/4258/dc755ad6347583he8.jpg

Thorsteenster

09-10-2010, 09:20 AM

Good God you've got a lot of time invested in this, and it shows. Awesome work on the machining.
I've never heard of such a machine until I saw you on Scale4x4 and had to a search to see what it was.
I can't wait to see a vid of yours in action.

9W Monighan

09-10-2010, 09:25 AM

Here's the link to my videos. There are some crude videos there of it's progression so far.
http://www.youtube.com/user/Scentlessapprentice9

D8R

09-10-2010, 03:04 PM

What CAD program do you use?
I was lucky to get digital readout on my milling machine but how funny to have a CNC.
Guess that out of budget for modelling purpose only.

Very impressing model, do you count hours put into it?

9W Monighan

09-10-2010, 04:37 PM

Dan, I have a older version of BobCad V19 and it works ok for some things but can't do all the functions on my control without tweaking things some. I have their newer 2007 (V22?) but I hate it and wasted my money on it. I'm just an old dog who's processor can't take in much more info:D
As far as hours, who's counting. I'll be going into my 9th year soon. I did keep some track of the milling of the bigger walking parts and it was around 100hrs.

9W Monighan

09-14-2010, 09:15 AM

Another flashback that took me about 3 weeks in the evenings to machine out the fairlead from a 3'' x 3'' block of steel turning it 90deg each side.
http://img362.imageshack.us/img362/5286/9wmodel001jj6.jpg

http://img355.imageshack.us/img355/3414/9wmodel011oq0.jpg

http://img355.imageshack.us/img355/5585/9wmodel012pa9.jpg

http://img261.imageshack.us/img261/6146/9wmodel013ap1.jpg

http://img529.imageshack.us/img529/6035/9wmodel014ux0.jpg

http://img152.imageshack.us/img152/7439/9wmodel015ao4.jpg

http://img242.imageshack.us/img242/6668/9wmodel019ha3.jpg

http://img72.imageshack.us/img72/5382/9wmodel020ta1.jpg

http://img291.imageshack.us/img291/3460/9wmodel021fq6.jpg

http://img152.imageshack.us/img152/6522/9wmodel023hp1.jpg

http://img187.imageshack.us/img187/2570/9wmodel024vx7.jpg

http://img407.imageshack.us/img407/2576/9wmodel025wz4.jpg

tc1cat

09-14-2010, 09:45 AM

Always nice to see your work in progress shots. Wish I had the space for a full sized mill and lathe:(. Guess I will just have to plug along with my Sherlines! Still need to upgrade the CNC version. Looks like next year at the earliest now. Too many home improvements and vehicle repairs for this year.

D8R

09-14-2010, 02:31 PM

9W Monighan

09-15-2010, 08:29 PM

Those parts are like arts, guess that with a CNC machine , you still have to put in hour of design of the part in CAD program. Best is that it can be reproduced from files if needed. Have not had any chance yet to test CNC milling but do a lot with laser cut with very good results from CAD drawings.
Hours, weeks or years, who counts but I couldn´t resist to ask, that´s no 1 question when showing the models, my model was started also 8 years ago but there has been some time without anything happening.
Dan

I don't save my CAM files too often because I machine things most of the time "one off" and to do fancy setups with all the tool changing would take too long. I do save the drawing files and if I need to make a second one in the future I just click the lines I want to machine and then generate a CAM file. Most of the time I just use the mill manually.

9W Monighan

09-17-2010, 01:50 PM

Now for the fairlead sheaves..
http://img257.imageshack.us/img257/7065/9wmodel026hd2.jpg

http://img257.imageshack.us/img257/3255/9wmodel027sg4.jpg

http://img385.imageshack.us/img385/7052/9wmodel031um3.jpg

http://img360.imageshack.us/img360/6041/9wmodel029gb8.jpg

I used the same fixture for all three different size sheaves
http://img242.imageshack.us/img242/9945/9wmodel032pr6.jpg

Almost finished
http://img257.imageshack.us/img257/8603/9wmodel028mi3.jpg

Hollowed out are for side sheave clearance.
http://img386.imageshack.us/img386/5714/9wmodel035ar6.jpg

http://img386.imageshack.us/img386/9407/9wmodel034wc9.jpg

http://img242.imageshack.us/img242/9941/9wmodel033id2.jpg

http://img509.imageshack.us/img509/9334/9wmodel037fl7.jpg

htthttp://img509.imageshack.us/img509/69/9wmodel038jo7.jpgp://

Boring the wheel for bearing
http://img185.imageshack.us/img185/4955/9wmodel039rz7.jpg

http://img185.imageshack.us/img185/2839/9wmodel040wp5.jpg

http://img185.imageshack.us/img185/7532/9wmodel041lz3.jpg

Almost ready to cut loose.
http://img185.imageshack.us/img185/1212/9wmodel042zr6.jpg

Drilling the mounting holes for the guards that protect the wheels from the crows foot
jamming back into them. I still need to figure out how to machine them.

http://img401.imageshack.us/img401/4964/9wmodel001mo9.jpg

mog

09-17-2010, 02:16 PM

nice art work that must have bean a very costly hunk of cast or was it a left over from a real job.

9W Monighan

09-17-2010, 03:43 PM

nice art work that must have bean a very costly hunk of cast or was it a left over from a real job.

That's 1018 cold finish steel. I had that laying around and it looked like it would work. My only regret was,I should have squared the piece up some because when you get to that size it maybe out some.

Snochaser

09-17-2010, 04:52 PM

Amazing work! Boy I'd love to "play" with a mill.

The one use are using is it CNC?

pugs

09-17-2010, 05:03 PM

Nice work.

I'd love to play with a cnc mill too.......I own one, just never seem to have time to play on it.

modelman

09-18-2010, 02:48 PM

Nice work as always steve-What is the "crows foot" you mentioned in the last picture?:confused:

9W Monighan

09-18-2010, 07:22 PM

Nice work as always steve-What is the "crows foot" you mentioned in the last picture?:confused:

Crows foot is just some slang for the socket that the drag rope,dump rope and chains come together.
http://img707.imageshack.us/img707/641/1003112.jpg

9W Monighan

09-22-2010, 10:19 AM

I finally have a little to add. I decided to order the required tubing needed for my boom. Here's some of the 120' of 1/4''&3/16'' round tubing I'm using for the boom lattice work. I'm still waiting for the 5/32'' that's coming from another location. All in all, another $200 into the dragline.
http://img685.imageshack.us/img685/1990/1003500n.jpg

pugs

09-22-2010, 10:35 AM

Should look really good with a proper boom on it. Can't wait to see how it turns out.

Stuff

09-22-2010, 12:17 PM

going to be well invested!

9W Monighan

09-23-2010, 09:01 AM

Here's a drawing of the boom but some small changes and details still need to be ironed out.
http://img716.imageshack.us/img716/6291/scan0001qz.jpg

tc1cat

09-23-2010, 09:10 AM

I agree. Money very well spent!

Snochaser

09-23-2010, 09:51 AM

Oh yeah, that's gonna look real nice.

9W Monighan

09-28-2010, 03:07 PM

I've been trying to get my brain started and try to remember where I was on this part. The Boom hoist. I trying to get the right motor with enough power and output. Right now it's way too slow. If my calculations are correct it would have taken 55 minutes to boom up:eek: That's just not going to work.
Sorry for the BIG pictures

http://img3.imageshack.us/img3/2755/3050y.jpg

http://img6.imageshack.us/img6/2969/9wmodel010.jpg

http://img12.imageshack.us/img12/9388/9wmodel011.jpg

http://img23.imageshack.us/img23/2472/9wmodel009.jpg

modelman

09-28-2010, 04:52 PM

Very nice work steve! I remember this from the garden site but I don't think it was finished. Did you cut these gears?

Stuff

09-29-2010, 11:58 AM

pictures big or small are better then no pictures!!

9W Monighan

09-29-2010, 12:27 PM

Very nice work steve! I remember this from the garden site but I don't think it was finished. Did you cut these gears?

I bought all the gears but the two smaller pinions are cut from 12'' pcs of gear stock so I can make them the way I want. I think I've mentioned in the past but I think there's around $100+ buying the worm & the other gears. I even put a tiny thrust bearing on the end of the worm. Right now I'm working on the mount for the motor I'm going to try. After testing it and getting a RPM of the winch drum, I running about 30ipm and that should take only 6-7 minutes to boom up or down.

Stuff:
The pictures were resized too big by accident.

9W Monighan

10-02-2010, 05:39 PM

I got some more done with the boom hoist and some on the base of the boom where it attaches to the revolving frame.
Motor pinion
http://img338.imageshack.us/img338/9527/1003502a.jpg

Boom hoist worm gear and a graphic of it on the monitor on my mill.
http://img697.imageshack.us/img697/2617/1003504t.jpg
http://img340.imageshack.us/img340/8122/1003505.jpg
http://img408.imageshack.us/img408/1586/1003506d.jpg

Cutting mounting plates
http://img196.imageshack.us/img196/3410/1003507e.jpg

http://img192.imageshack.us/img192/8826/1003508g.jpg

http://img413.imageshack.us/img413/6690/1003509j.jpg

modelman

10-02-2010, 05:54 PM

Very nice steve! I don't understand the monitor thing or the brass plates, but I like the work it's doing! Be interesting to see the finished parts.

ihbuilder

10-02-2010, 06:09 PM

:eek::eek: Steve , how long did it take to mill the worm gear ? will you have the boom ready for january ? I'm on the push to get the pan running for cabin fever

IHSteve

9W Monighan

10-02-2010, 06:24 PM

Tom, the graphics are a tool path simulation before actually turning on the spindle so I can check to see if there's any weird moves I've screwed up on while programming.

Steve, I bought the gear. I just wanted to dress it up to look like the 1:1 version. But that took 2hrs to do.Look at the picture in a previous post. I'm just trying to get moving on the boom. Soo much more design to do then get real good at silver soldering:D
I think I have all the metal needed now but I'll have to get about 200' of cable to reeve it up but before that's done I have to remove the "A" frame and machine the holes for the sheaves up there. It would be a miracle if the boom is finished.

ihbuilder

10-02-2010, 06:45 PM

Steve , in that 2 hrs , how much tool time and how much program time ? If the fund don't come in time then I'll be making everything for the hydros cept hose , fittings and seals . hydros put me back last year but not now with a mill in the shop even if it's a toy it still makes life easier . I looked at some of those booms on stripmine :eek: I can see that taking some time and a few more grays on the chin :p

IHSteve

9W Monighan

10-02-2010, 07:16 PM

The program only took about 5min but getting in the old mill didn't work. I was trying to rotate the pie shape on the mill but it didn't work. Long story. After a couple trips back and forth to the computer I figured it out. Now that I think of it maybe 3hrs in all:mad: I took small cuts because I didn't have a good hold on the gear and if it got ######up I would be out some $$$ If it was held better I could hog that out in an hour. The 6 plates took about 50min.

ihbuilder

10-02-2010, 07:25 PM

I was just trying to figure times , I'm trying to get a hold of a cnc bp missed out on one that had the phase converter with it . went for $2555.00 nice shape to :( I'll just keep trying . it's hart braking seeing nice machines for a good $ and not having the $ when you need it :(

IHSteve

dirtpusher9

10-02-2010, 10:19 PM

That is some beautiful work Steve, I can only dream of doing that kind of stuff.

D8R

10-03-2010, 12:21 PM

9W Monighan

10-04-2010, 11:05 AM

Wow, that wheel looks so much better when milled, guess you have to run the machine without any superstructure on it. when milling in brass, how much do take in each pass?
Guess that with the time spent in machine, it would be max 1/16. Will it be milled all way?

I have a RF35 milling machine, do you know of any good and cheap conversions for CNC. Guess that most CAD program can export right format to the CNC. When I draw for laser cutting most companies want DXF files.

my hat of, Steve, looking forward for progress.
Dan

What do you mean by no superstructure? I have a good bit of it complete. I still need to make the rest of the diagonal bracing up there though. As far as how big a cut I just go easy on parts that could be trashed easily. I used a carbide .125'' dia. endmill so you have to go easy. Look at the mill control graphics and you see I took .025'' each lap around the shape. I also went to depth in 4 passes to .150''. My Cam program is a older version of BobCad Cam. I have a newer version but don't like it.

D8R

10-04-2010, 11:58 AM

Steve, what I ment was it´s a shame to cover all this beautiful machinery covered up with sheet metal. You have put so much work into it so it has to be seen. Maybee a removable roof?
Here´s a pic from HCEA2008
It must have taken lot of hour milling out those sides
http://i1014.photobucket.com/albums/af270/gulalastbilen/DSC_0122.jpg

is it same type of control on the drums as this old model but with r/c servos?
http://i1014.photobucket.com/albums/af270/gulalastbilen/DSC_0124.jpg

9W Monighan

10-04-2010, 12:29 PM

Oh, I'm going to cover only half of the machine-The cab side. Yes I'll leave some of the roof open and the left side and I'll have lighting inside. I still need to make the big supports for the walking bearings that go into the roof and I have to make the curved roof trusses. The 3 motors are controlled with 100VDC regenerative drives similar to the 1:1 but solid state. The rc part was a real learning experience. When I have all that 100% I'll show more detail on that. I'm still on the trial and error method:D I'll have to post some of my progress from this past weekend on the boom.
I would love to have that stiff leg derrick toy that guy had at the show. I forgot to take some pictures of it like you did.

9W Monighan

10-04-2010, 06:17 PM

Here's some progress on the boom.
Fixture for side of first section.
http://img638.imageshack.us/img638/2398/1003510t.jpg

http://img812.imageshack.us/img812/4126/1003511.jpg

This is the first piece of tube cut and notched of hundreds:D
http://img816.imageshack.us/img816/8205/1003512.jpg

http://img842.imageshack.us/img842/5719/1003513q.jpg

Checking for fit.
http://img337.imageshack.us/img337/3900/1003514q.jpg

SmallHaul

10-04-2010, 06:26 PM

Looking good Steve!

Great idea on the fixture to make it.

modelman

10-04-2010, 06:42 PM

Steve-I cannot even imagine how long that is going to take but you will be rewarded. It should look "outta this world"!!:D

modelman

10-04-2010, 10:37 PM

Steve-you may already have a plan for your silver soldering but I thought I would mention this. I had a lot of problems soldering joints close to each other. The heat would melt the joints loose. If you are soldering both inside & outside of the boom this may be a problem. I found this stuff after I had finished my project but it looks like it will do this job. It is called "cool blue" heat paste and it seems pretty amazing. They have some videos of it being used and you might want to check it out. It is pricey but you can re-use it many times. Here is a link-
http://www.muggyweld.com/hpclip1.html

kerst

10-05-2010, 10:47 AM

great work! very inspiring!

thanks for sharing,
Kerst

9W Monighan

10-05-2010, 12:24 PM

Thanks Kerst..

Tom, I've heard of heat blocking putty. I think we tried that 25yrs ago but we never needed it for our work but like you said; It may come in handy for the intricate work on the boom. I have a tiny jewelers torch if my resistance soldering setup doesn't work. I hope with the resistance machine it will locate the heat right where I need it.
Something I noticed with the closeup picture that's hard to see without glasses is the tube bends up on the ends. My slitting saw needs to be a couple thousandths wider. My milling was on the big side of my intended size because trying to mill those long pieces,it's hard to hold straight and no deflection. I would love to have a vice setup with 32'' long jaws but I never built one.

ihbuilder

10-05-2010, 12:35 PM

Steve , I would use the torch . if you have it all clamped in the jig ready to solder , you can heat a muti joint area and solder at once .

IHSteve

modelman

10-05-2010, 01:41 PM

Yeah steve-I noticed the gaps but couldn't tell how big they are. The silver will fill in some gaps. I have heard of the resistance soldering but never seen it used. That may be the way to go. Using the torch ,the thick angles will take a lot of heat and it may be too much for the thin-wall tubing. I'm sure you will figure it out.

tc1cat

10-05-2010, 03:15 PM

9W Monighan

10-05-2010, 04:24 PM

WOW!! Your work is always top notch. Silver soldering is an art in itself. Not sure a resistance iron will work with the brass frame being so much thicker than the cross bracing. Torch is going to be just as challenging due to the size difference. Some sort of heat sinks or the heat blocking putty may be your best bet.
Took me awhile to get the hang of soldering on my Studebaker. The grill alone took over a hour to solder together and I made a jig first. Glad I only have to do about 8 or 9 more solder joints and it will be back to machining again.
Would really like to see your work in person. Course I would probably just stare and drool over it.:D I do a lot of that at the NAMES show each year.

Those old guys really would frown on the drooling. Might rust a head bolt.:D
Why don't you come to York in January with some of us other guys and bring the Studebaker. Work in progress are always welcome. I want to look that truck over.

I have resistance power supply's up to 2500W I picked them up when they were cheap enough. I hope to find a use for them just need the proper jaws maybe.

9W Monighan

10-06-2010, 07:09 PM

I spent 3hrs last night trying to mill these tighter angled pieces. I got one almost right. Today I had to make a small vee block fixture to hold the tube further out of the vice so the slitting saw won't hit the vice. I also found the problem with the narrow groove Tom. The saw I was using measured .060'' and my tee is .063'' so I stacked up two saws that measure .064'' wide.
http://img192.imageshack.us/img192/5613/1003515.jpg

kerst

10-06-2010, 07:47 PM

Nice setup!

Kerst

modelman

10-06-2010, 08:29 PM

Nice set-up steve-seems like I spend half my time trying to build something to hold something like you did. I guess that's how it goes. Are the saws carbide? I tried slitting tubing with a dremel saw a few years back and trashed the tubing and the saw.:eek:

pugs

10-06-2010, 08:43 PM

Looks like just standard High speed steel jewelers saws. I've been using a .0625" by 6" saw on my manual mill for the last 2 days as well, great fun.

9W Monighan

10-06-2010, 09:13 PM

Yes they're just high speed steel (two stacked) but a little dull but work fine. The new setup works great now that I can push the tube closer to the fixture and I can cut into it rather than the toolmakers vice:D I managed to get three more mitered and notched this evening (about 45min). Maybe tomorrow I'll knock a few more out. This run of pieces has 2 sets of 20pcs. I'm having some trouble dialing in the different angles, their not 45deg their 43.8 46.6 etc.

pugs

10-06-2010, 09:27 PM

You've got CNC, why angle the vise? Just make the cut angled. Should be real easy if your machine will take a polar coordinate move. Program for your start and end point, and just change the Polar angle for each tube. If no polar then just some quick math to determine new endpoint for different angles

Or is there something I'm missing???

9W Monighan

10-06-2010, 10:39 PM

I can do it quicker manually since there's only two pieces each. First I'd have to locate each one for length possibly rough cut the angle on the bandsaw so I wouldn't have to take several small cuts and do a program for each set. I've done it before on some of the other pieces but it's not worth it for the hundreds of different sized pieces. If I had a tiny chop saw I could cut the angles but I would still have to orient them in the vee fixture properly for notching. I would definitely do the CNC set up if all of them were the same.

pugs

10-07-2010, 10:40 AM

Ok, that makes sense. I guess for some reason I was thinking a bunch of them were similar.

modelman

10-13-2010, 12:16 PM

Steve-any progress on the boom?

9W Monighan

10-13-2010, 12:47 PM

That's funny I was going to post at lunch but we rode up to TACO SMELL first :D Been busy this past week but found an hour here and there to make some tubes. Every pair is a different length,and angles are different each end because; the tube's edge goes from one side to the other side of the centerline.
Well, I got enough pieces (40) for both sides of the bottom 45'' section done. Now I need to mill the "T" chords to proper length and drill all the slice plate holes. Then on to soldering:confused:

http://img831.imageshack.us/img831/5810/1003520u.jpg

http://img651.imageshack.us/img651/4809/1003519a.jpg

http://img704.imageshack.us/img704/9883/1003518d.jpg

pugs

10-13-2010, 01:16 PM

Looking good!

dirtpusher9

10-13-2010, 02:25 PM

That looks good, Steve. How long is the boom going to be or did I miss that?

9W Monighan

10-13-2010, 02:48 PM

That looks good, Steve. How long is the boom going to be or did I miss that?

About 122.5''

modelman

10-13-2010, 03:13 PM

Good timing huh! Looks perfect. Nice joints!

dirtpusher9

10-13-2010, 05:14 PM

Man, that thing is going to be a beast. What are you using for cable? or (line)

Brian in PA

10-13-2010, 08:15 PM

Nice work Steve!

Brian

9W Monighan

10-13-2010, 10:42 PM

Thanks all.
Joe, I can't remember what sizes the cables are. I've been experimenting with 3/64'' , 1/16'', & 3/32'' 7x19 to see how flexible they are. But to be scale the drag (2'')=1/8'', hoist (1.5'')=3/32, boom ropes and bucket dump (1'')=1/16''

9W Monighan

10-21-2010, 09:22 PM

Got some more progress this week. There's a lot of tiny details unforeseen here. Still need some splice plates.
http://img230.imageshack.us/img230/4716/1003537r.jpg

http://img686.imageshack.us/img686/6382/1003538.jpg

modelman

10-21-2010, 09:30 PM

Looking really good! Work faster! Wanna see more!:D

9W Monighan

10-21-2010, 09:35 PM

10% inspiration 90% perspiration:D--------- Well, lots of procrastinating really:p

pugs

10-21-2010, 09:38 PM

Looking better and better

SmallHaul

10-25-2010, 09:58 PM

That boom will be incredible when done!:cool:

9W Monighan

10-26-2010, 02:47 PM

I've been working hard on the slice part of the first section still. Came across a small problem where the side, top and bottom diagonals attach in the seam area but figured out a fix because soldering a bracket on isn't strong enough. If I was working in steel I could just tig weld it on. I probably could tig the brass but don't want to chance ruining a tee chord and a few hours machining a new one. I don't have any pictures yet.

modelman

10-26-2010, 03:14 PM

Steve-I think a silver solder joint is about as good as a weld when done correctly but I'm sure you have this situation covered. Let us see pics whenever you can.

9W Monighan

10-26-2010, 07:57 PM

Here you go Tom. This is what I was talking about. I made these angle pieces that bolt on rather than just be butt welded on. The wall thickness is .020'' at the thin area. On the top view I don't have the 1/4'' tube milled yet,that's just one of the lattice pieces,also at that point there's two 5/32 angles back to back only one shown. Maybe by next week I'll have most of this area built I hope sooner.

Milling the profile before drilling holes
http://img198.imageshack.us/img198/7500/1003539z.jpg

End view of all 8pcs to be cut in half
http://img253.imageshack.us/img253/8007/1003540p.jpg

http://img42.imageshack.us/img42/1387/1003541f.jpg

Top view
http://img193.imageshack.us/img193/7176/1003542y.jpg

td9clyde

10-26-2010, 08:37 PM

awsome work!!!!!!!!!!!!!! more pics please :)

modelman

10-26-2010, 09:06 PM

Now I see- this sure looks complicated! Looks like a "whole lotta thinkin" going on here.:cool:

JAMMER

10-27-2010, 08:21 AM

Excellent nice machine work but very expensive with all that brass. Ed

9W Monighan

10-28-2010, 08:40 PM

Got some progress from all the thinking going on. It sure is nice to see how the pieces are coming together after several hours of machining and procrastinating.
I did a count of tubes that need milled for the top and bottom surface still and there's 44.:eek:

http://img42.imageshack.us/img42/7579/1003548a.jpg

http://img514.imageshack.us/img514/5352/1003547s.jpg

http://img821.imageshack.us/img821/3643/1003546.jpg

http://img20.imageshack.us/img20/806/1003545d.jpg

modelman

10-28-2010, 08:55 PM

Looks really good steve!! Have you counted how many bolts will be in just the boom?

9W Monighan

10-28-2010, 09:02 PM

HMM. Probably around 700? I do know there will be 76 at each splice.:p

Espeefan

10-30-2010, 01:48 AM

Wow. 9W Monighan, I remember your post from Scale 4x4, and replied a few times there, but now that I've actually caught up with your build over here, all I can say is this project is truly a labor of love. I loved looking at all the photos of the machining, in process. This is truly an epic build. I am in awe of your skills and talents.

9W Monighan

10-31-2010, 09:47 PM

Thanks,Nathen.

I spent most of the weekend working on the boom but only made 8 pcs. and half of 8 more tubes. Too many distractions updating the drawings. There's still about 36 more to go on this section. Sorry no pictures today. I probably could have gotten more done if I didn't have to sit on my porch giving out Halloween candy:mad:
I'm almost to a point where I can solder some of it together.

modelman

11-05-2010, 09:55 PM

Anytning going on?

9W Monighan

11-05-2010, 11:01 PM

Haven't done anything this week but drive to Baltimore,MD. and then up to Youngstown,Ohio to deliver a job and pick up a load of steel bar for my real job. While on the way home from MD. I wanted to stop at Dragline World to see Jim but I didn't have time. I hope to pickup where I left off Sunday on the boom but first I want to work on another paying job I've been fiddling around with this week. "Both regular and side work are once again getting in my way":D

9W Monighan

11-09-2010, 09:07 PM

A little time this evening so I made some more tubes.
http://img9.imageshack.us/img9/6448/1003559n.jpg

http://img21.imageshack.us/img21/7105/1003558l.jpg

This is were the bottom section breaks apart.
http://img839.imageshack.us/img839/5946/1003557r.jpg

pugs

11-09-2010, 09:42 PM

Great looking work!

modelman

11-10-2010, 10:54 AM

Looking better with every picture! I hope you have a big shop to work in. This thing is getting big:eek:

tc1cat

11-10-2010, 12:38 PM

ihbuilder

11-10-2010, 01:09 PM

WOW!!! And I thought trying to work out the angle cuts on my rocket rack was a bear! Nothing in comparison to this. Going to try and make the Cabin Fever show in Jan. Really want to see this in person.

it be great to see you lynn hope you can make it . Steve you got to work more sleep less :p looks great :eek:

tracksntreadslou

11-10-2010, 10:58 PM

Wow steve your brass work looks awsome ,thing is looking huge too..I could just imagine being close to the 1 to 1 machine after seeing the size of a 1/16:) thumbs up ...it gets better every day

9W Monighan

11-11-2010, 11:20 AM

I had a question from another site on how I'm joining my parts.............

How are you joining the parts together soldier ,Tig ,Gas ,Bolts ,Rvets.

All of the above. I tig welded the ends of the steel beams where needed. Bolted with literally thousands of 0-80 bolts and up to 1/4-20 bolts on parts not seen. Riveted pieces together on the brass exterior with .040'' dia rivets. And I'll be soldering and bolting the brass boom sections.

http://img408.imageshack.us/img408/5227/1003277a.jpg

Early stages of the ESCO bucket.
http://img62.imageshack.us/img62/794/1003248.jpg

Bolting nightmare!
http://img690.imageshack.us/img690/613/1003162j.jpg

View of some of the fairlead structure rivets
http://img32.imageshack.us/img32/3412/1003006w.jpg

9W Monighan

11-12-2010, 01:19 PM

I finally got to solder one of the side pieces together. It was a little tricky till I got on to it.
Here's the last mock up before soldering....
http://img88.imageshack.us/img88/2633/1003560i.jpg
http://img109.imageshack.us/img109/4323/1003561.jpg

View showing lamination's on the base
http://img703.imageshack.us/img703/6971/1003563.jpg

Center break
http://img100.imageshack.us/img100/296/1003564j.jpg

Hot out of the fixture. I still need to do some soldering on this side where the solder didn't flow thru.
http://img573.imageshack.us/img573/1069/1003568.jpg
http://img593.imageshack.us/img593/6152/1003569.jpg

modelman

11-12-2010, 03:06 PM

NICE WORK!! Are you doing the resistance soldering?

9W Monighan

11-12-2010, 03:52 PM

NICE WORK!! Are you doing the resistance soldering?

Not yet, I tried but the big aluminum fixture sucks all the heat too fast for the medium size tweezers and 250W power unit. I don't have the proper conductor pliers for my bigger power units. I used my jewelers torch instead.
I set the finished truss between two counters and pushed down and there's no deflection with a reasonable downward force. This strength sure beats my temporary boom:D

tc1cat

11-12-2010, 04:33 PM

Nice!! Hope to see it in Jan!! Only thing that is going to stop me, would be the weather! I am getting cabin fever NOW!!! Let alone by Jan.

D8R

11-12-2010, 04:52 PM

Looking impressive, amazing what strenght you get from those brass tubes/profiles. Have had a drag line in mind for next project but thought I had to go with steel profiles on boom. Looking forward seeing it in real next time in us!
Dan

Iron Art

11-12-2010, 11:56 PM

Beautiful work, really like the detail, it will be a museam piece when complete. Fred

9W Monighan

11-16-2010, 09:58 AM

Thanks you guys, Right now I've been designing the diagonal bracing at the splice through the cross section.Tiny work here and I may have to use some of the .040'' rivets instead of bolts,there's just no room in the 5/32 angles to clear both bolt heads. Once that's figured out I can solder the braces on the top and bottom of this section.

Stuff

11-16-2010, 11:14 AM

wow thats amazing!!!

SmallHaul

11-16-2010, 11:35 AM

You never seize to amaze me with your craftsmanship Steve.

9W Monighan

11-18-2010, 09:39 PM

Here's a little work done but I have a paying job I need to get shipped by Thanksgiving.
http://img264.imageshack.us/img264/3743/1003576l.jpg

Here's the tiny rivet I spoke of before.
http://img708.imageshack.us/img708/4321/1003577p.jpg

td9clyde

11-19-2010, 07:23 AM

geeeeeeeeeeeeeezzzzzzzz and i been complainin about 3/32 and 4/40 stuff lol you do amaizing work this is a cool thread to watch as you built very detailed and percision work very nicely done keep up the great work

modelman

11-19-2010, 10:33 AM

That's getting really small steve-could you solder this or do you need the rivets for the scale appearance?

9W Monighan

11-19-2010, 11:42 AM

Henry, I remember sweating blind tapping the #3-48 bolts on the bearing caps for the drums and parts on the walking cams. #0-80 is a whole new world that I've learned on the structure.:p

Tom, I need rivets because the heads of the bolts will hit on the two axises of the angle. I'll rivet these and solder. I don't think just solder will hold well here and rivets look so nice. It will be clearer when I get it installed.

Espeefan

11-19-2010, 03:52 PM

Wow. It keeps getting better and better. Truly a masterpiece in the making.

I've been working with a lot of 2mm srews on my model and I've come to the point where I'm going to need to tap some 2mm threads into some blind holes as well, in aluminum, so I know what you mean about sweating that job! 2mm screws are pretty small as well. Maybe not as bad a #0-80s though. Looks like you've got a lot more to worry about then I do! About all a guy can do is use some good thread cutting oil, go slow, and keep backing the tap out every turn or so. Maybe even stop, back it out, flush the chips out, or blow them out with air, and continue. At least the bolts and nuts will be easier! Are you going to loc-tite everything as you go?

TheMachinist

11-20-2010, 10:24 AM

Good Grief! What a masterpiece. I work in a machine shop and have done some pretty small pieces but this machine in the most detailed and intricate I have ever seen.
You are a true craftsman.

Jordy

9W Monighan

11-20-2010, 10:18 PM

Thanks Jordy.
Nathen, I don't think I'll need locktite Some of the holes are threaded then I'll be running a nut on them too where needed. But the only problem with 0-80 small pattern nuts is they're 1/8'' hex and the bolt is 3/32''hex and you have to keep this in mind because of wrench clearance. In one of my pictures you can see my shop made socket wrenches, the Wiha's are too thick,I turned down a socket head screw to very thin wall to be able to tighten bolts. I even design this in on the CAD so it can be assembled.And if all else fails I'm using socket head bolts,much more esier to install:D I'm trying to keep very close tolerances on my hole sizes so there won't be much movement with the bolts.
"It's supposed to line up":rolleyes:
2mm screws aprox .078'', aren't they about the size of #1-72? I have some 1-72's installed and they're much more esier to tap than 0-80's

dirtpusher9

11-24-2010, 06:42 PM

Well, where's the progress pics at Steve, I can't wait to see the boom on it?

9W Monighan

11-24-2010, 10:13 PM

Well, where's the progress pics at Steve, I can't wait to see the boom on it?

Ah well---- I haven't done anything this week because I had to make sure everybody has work next week so we can go to deer camp. You know,it's a big deal here in PA. the first day of buck.:D At least for us hunters.
I need no distraction to be able to work on that boom. Looking at the date, I may have the first section pretty much done for Cabin Fever. I might be able to just set it on the temporary boom for the heck of it.

9W Monighan

12-05-2010, 08:29 PM

I spent some spare time this week between deer hunting and got this cross section brace complete less solder. It's pretty hard to put those tiny rivets in. Mashing them is easy once everything is lined up. I'll put the remainder in after I'm sure everything is squared up correctly.
http://img821.imageshack.us/img821/2871/10036010.jpg

Corner detail:
http://img146.imageshack.us/img146/5599/1003603.jpg

SmallHaul

12-05-2010, 08:56 PM

The corners look perfect Steve, nice work.

pugs

12-05-2010, 11:24 PM

Very nice work, can't wait to see the finished boom.

td9clyde

12-06-2010, 08:37 AM

yea this is one awsome build the thing is can you actually fit the whole thing in one pic and still see the details??lol nice work very detailed

tc1cat

12-06-2010, 08:41 AM

Very slick build. Hope to see it in Jan!!!!

9W Monighan

12-06-2010, 09:12 AM

yea this is one awsome build the thing is can you actually fit the whole thing in one pic and still see the details??lol nice work very detailed

Henry,I guess you need to see in person. :D Please refer to my new post in the general discussion topics. Maybe this would cure some of my dilemma:rolleyes: Wide angle lens:confused:
Thanks again you guys, That one section pictured took me about 10hrs of fooling around I'm trying to get into full gear on this boom in the next month but doubt I can finish by Jan 14th don't want to go too fast and screw up.

modelman

12-06-2010, 10:28 AM

Very nice work steve-you must have good eyesight. That is really small. I am going on 10 years with bad vision and I can't begin to tell you how frustrating it is.:mad:

9W Monighan

12-06-2010, 09:51 PM

Tom, The eye sight is really bad close up but I had no problem spotting deer 800yds away this week:D
I got this section finally soldered together this evening just needs some cleanup and a tiny amount of filing for fit.

http://img27.imageshack.us/img27/2949/1003613tt.jpg

http://img222.imageshack.us/img222/2718/1003614j.jpg

Jared

12-06-2010, 10:55 PM

Wow, just beautiful! And I was grumbling because I took a couple weeks of here-and-there dinking around on my simple little boom. I've watched your videos but seeing how it goes together here gives one a much better appreciation for it all. This forum doesn't have the jaw-dropping smiley but if it did I would use it. I will be watching.

Espeefan

12-07-2010, 02:38 AM

Wow. I'm not sure what to say, that hasn't already been said, but this project just keeps getting better and better! It is definitely a masterpiece.

modelman

12-07-2010, 10:17 AM

Looks perfect to me steve! " a deere at 800 yds". I couldn't see an ELEPHANT at 800 yds if it were painted BRIGHT ORANGE

lorenzo

12-07-2010, 11:29 AM

Wow. In the time where I wasn't here you've done a really fine work. I would like to look over your shoulders to learn from you. But that's more than 800yds away.

9W Monighan

12-07-2010, 12:02 PM

Glad to hear from you again Lorenzo.

lorenzo

12-07-2010, 12:12 PM

Seems I'm getting more time next time :). More time for the hobby again.

9W Monighan

12-12-2010, 12:07 PM

Well now that deer season is over for us it's time to get at this boom more. I should have the rest of these tubes cut and notched today and maybe start soldering some more.

http://img27.imageshack.us/img27/3038/1003616q.jpg

Closeup of how the tubes come together. The .040'' plate is notched into the 1/4'' tube then the 3/16'' ones are notched. This is becoming stronger and stronger all the time,the solder shouldn't be stressed as much with this notching.
http://img137.imageshack.us/img137/2896/1003615.jpg

Espeefan

12-12-2010, 01:37 PM

After replying to your thread three times, I feel like a broken record, so I'll just sit back and watch this masterpiece come together! :D

D8R

12-12-2010, 03:03 PM

lorenzo

12-12-2010, 03:57 PM

Interesting way of linking all the parts by notching and soldering. I'll keep that in mind :).

9W Monighan

12-12-2010, 04:34 PM

Now it´s clear why you had to spend a lot of money on tubing. Very nice piece of work, guess I have to visit you next time in us to get a crash corse in brazing!
Do you have drawing for this or did you have to climb the mast to get all meassurments needed?
Dan
I could have measured a real boom of a 9W last year but couldn't get out to do it while it was on the ground being painted. But,
I have some drawings provided by Walter Bennett of Scranton,PA. He built a 3/8th'' scale 10W Dragline between 1967-1980 and has several photos and measurements he took back then. In his collection he had a set of photos and drawings dated:March 1969 that were of a 9W boom that he made by mistake thinking it was the same as his 10W. They are fairly complete but I still had to design it by referring to his photos and drawing and use my imagination alot. I have some drawings of my own of the point and I'll get to that I hope this winter.

Lorenzo,
The notching is exactly as the real machine and all the pieces are sized almost exactly as the real machine.

lorenzo

12-13-2010, 01:44 AM

Do you use an apaerature to hold all pieces in position while soldering or is the tension of the parts doing a good job?

9W Monighan

12-13-2010, 07:53 AM

Do you use an apaerature to hold all pieces in position while soldering or is the tension of the parts doing a good job?

Look at one of the earlier posts and there's a fixture I made to hold the sides together while soldering the lattice. The only problem was it was too big and sucked all the heat out of the brass too fast making it difficult to get the heat right for solder flow. I also made a rectangle to hold the splice section. I'm going to make up a fixture to hold the width correctly while soldering the tubing on the top and bottom. Some pieces will just hold themselves together while soldering.

lorenzo

12-13-2010, 12:06 PM

Now you're talking about I remember (I'm getting old ;)). Maybe you coud use a cooking plate to pre heat the fixture and the brass parts.

9W Monighan

12-14-2010, 01:16 PM

Now you're talking about I remember (I'm getting old ;)). Maybe you coud use a cooking plate to pre heat the fixture and the brass parts.

I do take the torch and heat the 25.4mm square bars to get them warm but not really hot.

lorenzo

12-14-2010, 01:32 PM

That's a way too :).

9W Monighan

12-17-2010, 07:22 PM

Smallhaul Scott, I finally pulled the drag out of the crate after 4 months this evening and hooked up my new Spektrum DX7. It seemed to work flawlessly on the swing and drag. I didn't put the temporary boom on yet to see the real pain," The Hoist Function". I'm sure it'll work fine too. I was fooling around with the dual rate and figured out how that works. That will come in handy for a beginner or possibly aid in truck loading. Another would be,if there's enough torque on that low of a setting, "Walking"
I am getting ready for some soldering work this weekend and hopefully have the first boom section done.

td9clyde

12-17-2010, 07:56 PM

can't wait for more pics i don't know how all you guys can build these cranes i guess i don't have that good of paitents everything is so intricut and detailed nice work keep up the great work

SmallHaul

12-17-2010, 09:39 PM

9W Monighan

12-20-2010, 08:54 AM

Lots of progress this weekend. Almost all of the tubing is soldered together on the first section but ran out of time. I can't wait to be able to pick it up from the jig and hold it without worrying about it falling apart in my hands:D
I can't take any pictures yet because my camera is not working properly. I'm in the process of buying a new one now.:confused:
I'm thinking about a: Nikon S8100

SonoranWraith

12-20-2010, 11:47 AM

I'm thinking about a: Nikon S8100

Looking forward to the soldered piece/work of art when you get the pics. My wife wants this camera. I guess we'll see your pics for evaluation. ;)

9W Monighan

12-21-2010, 10:14 AM

Well, I got all the tubes fitted and some soldered but will finish this evening. I went out and got my new camera and I'm trying to get used to all the new gadgets it has.I need to get it set correctly though. Here are some pictures of the boom in it's jig to hold the taper correctly.
http://img256.imageshack.us/img256/9563/dscn0037i.jpg

http://img697.imageshack.us/img697/7489/dscn0036g.jpg

Corner all soldered
http://img832.imageshack.us/img832/8788/dscn0038t.jpg

Detail of how the tubes join ready to be soldered
http://img404.imageshack.us/img404/6656/dscn0035zw.jpg

modelman

12-21-2010, 01:14 PM

Looking really good steve! Are you making the boom so it can be partially dis-assembled?

Stuff

12-21-2010, 03:10 PM

hard to believe it is 1:16 yet so large!! very nice job!

td9clyde

12-21-2010, 06:26 PM

wow blink blink can't beleive my eyes that thing is huge very nice work

9W Monighan

12-21-2010, 09:13 PM

Thanks everybody. Tom, I'm making as close to real as possible and it will come apart. Maybe I'll need to haul it on a scale lowboy:D.
Well now I've reached another mile stone. The bottom section is now complete out side of walkway and light brackets of course. When I took it out of the jig I was totally impressed how strong this thing is! I just had to mount it on the machine to see how it looks, and Henry can now see how big this is getting.
Please bear with me as I haven't got the new camera figured out yet.:confused:
http://img87.imageshack.us/img87/9937/dscn0043qv.jpg

First time on!
http://img403.imageshack.us/img403/6776/dscn0045s.jpg
http://img816.imageshack.us/img816/7594/dscn0048v.jpg

http://img42.imageshack.us/img42/8535/dscn0050f.jpg

td9clyde

12-21-2010, 09:33 PM

wow that crane is huge !!!!!!!!! very percision and precice work awsome job keep it up and keep the pics goin nice work

td9clyde

12-21-2010, 09:35 PM

whoow what is that lil cat in the shelf??

pugs

12-21-2010, 09:51 PM

Nice work and nice shop

kerst

12-21-2010, 10:06 PM

Looks great!

Kerst

9W Monighan

12-21-2010, 11:43 PM

Henry, Look in my 1:1 topic but that's my kids toy I built him back in 97' It's just a little Struck Mini Dozer I modified to resemble a Cat D4C about 1/2 scale I added a hydraulic blade also.
Pugs, That's only about 1/4 of my shop, there's more back in the darkness. We have about 12,000 sq.ft.

9W Monighan

12-26-2010, 09:24 PM

I got a few pieces cut this weekend on the second or middle 30-3/4'' (41') boom section. I had to do some serious filing and sanding to remove the machine marks from the Tee chord sections too.
I could have gotten more done but had the urge to operate the machine with the temporary boom on for about 2+hrs:D
http://img156.imageshack.us/img156/7859/dscn0058b.jpg

http://img827.imageshack.us/img827/4157/dscn0060u.jpg

Some tubes cut for both sides
http://img59.imageshack.us/img59/2868/dscn0117u.jpg

modelman

12-27-2010, 11:40 AM

Looks like you are making some progress steve-are you pleased with the way the model works with the boom section on? Is it strong?

rc_farmer

12-28-2010, 10:31 AM

I would really like to see this model in person one day. Its gonna be an awsome model.

9W Monighan

12-28-2010, 10:52 PM

Looks like you are making some progress steve-are you pleased with the way the model works with the boom section on? Is it strong?

I can't try the first section yet. If anything I'm going to just wire tie it under the temporary boom for looks and to keep fingers from touching it while at the show. But to answer your question Tom, It is very strong so far, much stronger than the temporary one that's just tacked together 1/8''x1/2'' flat bar.Also the safety lines add needed strength to keep it from buckling. I am almost finished milling angles and notching the tubes on the second section. After that is done I have to work on those dreaded splice plates again that took so long on the first section.

9W Monighan

12-31-2010, 05:35 PM

More pieces this week. I have 66 done but still need 39 more for this section of boom.
http://img707.imageshack.us/img707/5006/dscn0122rw.jpg

Drilling the chord ends 224 holes total 0-80 to tap.on these
http://img255.imageshack.us/img255/7002/dscn0121l.jpg

A nightmare of angles
http://img191.imageshack.us/img191/1929/dscn0120ja.jpg

Stuff

12-31-2010, 08:20 PM

very cool!

9W Monighan

01-06-2011, 10:24 PM

I got the second section pretty much done this week on the 9W project.
Still need the 3rd section.

.040'' rivet detail
http://img29.imageshack.us/img29/1769/dscn0128vm.jpg

http://img573.imageshack.us/img573/8400/dscn0129o.jpg

Fitting up the splice what a time consuming job this was trying to install all the 0-80 socket head screws
http://img822.imageshack.us/img822/4173/dscn0136p.jpg

ready to solder
http://img148.imageshack.us/img148/3734/dscn0144o.jpg

second splice
http://img821.imageshack.us/img821/9185/dscn0140zn.jpg

100' or 75'' scale boom
http://img132.imageshack.us/img132/315/dscn0145l.jpg

http://img843.imageshack.us/img843/7714/dscn0146a.jpg

tracksntreadslou

01-06-2011, 11:18 PM

Wow Steve Looks awsome...So close to being done for the cabin fever and wish I could be there to see it in person..Im totaly impressed ...great work

9W Monighan

01-07-2011, 12:03 AM

Wow Steve Looks awsome...So close to being done for the cabin fever and wish I could be there to see it in person..Im totaly impressed ...great work

You will have to come next year with all your forestry equipment . IH steve and I talked about having a stripping diorama starting with cutting trees then scrape the topsoil off and start removing overburden down to a scale coal bed to load out:D I was saying around here in the past, the coal co's just push all the trees into the pit and cover them up with a D11:D

Stuff

01-07-2011, 12:17 AM

that's just crazy!!

pugs

01-07-2011, 11:09 AM

Looking great! hard to believe it has to get bigger yet.

D8R

01-07-2011, 12:28 PM

Fantastic work Steve, looking forward to see it finished. Is everything done inside, drums, brakes.....?
what´s the capacity on bucket?
Dan

JAMMER

01-07-2011, 01:10 PM

Steve great job looking forward to seeing it next week. Ed

tc1cat

01-07-2011, 03:24 PM

All that brass!!!! What a monster!! Hope to see it next week!

Lynn

9W Monighan

01-07-2011, 03:24 PM

Thanks again everybody.

Fantastic work Steve, looking forward to see it finished. Is everything done inside, drums, brakes.....?
what´s the capacity on bucket?
Dan

I need parking brakes for the load drum and walking gear. Now I know more about RC I can figure this out. I wasn't sure If I should use air but I guess a servo is the easiest. Not sure the exact capacity of the bucket.

Does anybody know of a source for lighting? I want some big spot lights on the boom. I was thinking of buying Mini Maglite reflectors and build my own using their Kypton bulbs. I found I site that has model boat spot lights. I may get one and see how it works.

D8R

01-07-2011, 03:46 PM

On my model I will try using Plexi cut to size, drill a hole on rear and put a white LED.
The Plexi was bought as scrap at local dealer, LED´s are 5 for $4. Plexi comes in different sizes, sheets, rods, I use 1" sheet (part of) and cut with bandsaw.
My LED´s are 3,2v 20mA, 2 connected togheter can be runned on reciver battery.
http://i1014.photobucket.com/albums/af270/gulalastbilen/DSC_0256.jpg
The brass strip will be used as guards outside lamps (on CAT models).
Dan

JAMMER

01-07-2011, 07:07 PM

Well Steve have you got it all packaged up for York next week? I will see you there. Ed

9W Monighan

01-07-2011, 11:47 PM

Well Steve have you got it all packaged up for York next week? I will see you there. Ed

No, I'm starting the third section and hope to get it pretty much complete this weekend. I won't have the point sheave done so I'm going to just clamp a temporary one on.

tc1cat

01-08-2011, 08:24 AM

9W Monighan

01-08-2011, 12:13 PM

Steve,
Talk to Willy (customrcmodels) about your lighting. He uses some 5mm LEDs on his tanks and trucks that you can not look at as they are so bright. They make the stock Tamiya headlights look like candles!
Looks like I will not be able to make the York, PA show next week:( Was able to get new computer and software for my CNC Sherline mill at a very good price so all of my available funds went there instead. Hope to see your dragline next year if all goes well.

Lynn

I haven't decided if I want LED's yet. I sort a like the older incandescent bubs. giving the vintage of this machine. I think you can get LED's in a off white witch may look ok. It would be nice if I could find some fixture that are already made.
Sorry you can't make it. Let's see some pictures of your new mill set up.

modelman

01-11-2011, 08:49 PM

Steve-this looks really great! Your patience will be rewarded!!

9W Monighan

01-11-2011, 09:56 PM

Thanks Tom, I am busy trying to get the 3rd section pretty much done this evening but got cut short from running out of oxygen on my torch. I have all the pieces made and about 3/4 of it is soldered together. I haven't started on the point yet but I'll still be putting a block of wood up there for the sheave temporally so we can run it this weekend.

td9clyde

01-11-2011, 10:55 PM

nice work i like all the detail jusy can't put it into words lol one day i will see your drag line model in person

lorenzo

01-12-2011, 06:30 AM

Hey Steve, that's just amazing. If I only could see it in real life. That would be great.
How do you solder the 4 sides together without loosing any piece If the latice work while reheating?

9W Monighan

01-12-2011, 08:58 AM

td9clyde: Well who ever wants to brave the snow can see it this week end:D

Lorenzo, If you look closely at some of my previous posts you will see how the lattice is held together by notching the ends of the tubes. I can carefully pick the section up even without solder. Right now, I have to run down to the welding store this morning and get another bottle of Oxygen.

JAMMER

01-12-2011, 10:16 AM

Steve are you using silver solder on the boom? If it was me I'd use 50 % silver solder so it would take the strain and the flex. Ed

9W Monighan

01-12-2011, 11:28 AM

Steve are you using silver solder on the boom? If it was me I'd use 50 % silver solder so it would take the strain and the flex. Ed

I'm using "Harris Bridgit" It's works nice. It seems to have plenty of strength. I didn't want to fool around with StaySilv45.

http://www.harrisproductsgroup.com/~/media/Files/PDF/Spec%20Sheets/Soldering/Lead-free%20Solders/BRIDGITSpec.ashx

9W Monighan

01-12-2011, 09:44 PM

Well I got the boom done enough to work and now I need to make a quickie point sheave and a eye bolt for the suspension cables:D

http://img547.imageshack.us/img547/572/dscn0148d.jpg

http://img30.imageshack.us/img30/2406/dscn0152i.jpg

http://img232.imageshack.us/img232/3135/dscn0154z.jpg

Stuff

01-13-2011, 09:47 AM

I haven't decided if I want LED's yet. I sort a like the older incandescent bubs. giving the vintage of this machine. I think you can get LED's in a off white witch may look ok. It would be nice if I could find some fixture that are already made.
Sorry you can't make it. Let's see some pictures of your new mill set up.

if your plugged into the wall, might as well go with the regular bulbs :P

Also wicked picture there in your shop Monighan!

Whats with the little cat hiding up on the shelf :P

modelman

01-13-2011, 10:41 AM

Steve-that looks FANTASTIC! I LIKE IT!!!

pugs

01-13-2011, 11:22 AM

Looks great. I get a kick of the Cat on the shelf everytime I see it!

9W Monighan

01-13-2011, 10:58 PM

I tried the drag out some before we took the boom off and separated the top section for transport tomorrow. I noticed I'll need to add some counter weight. It may not walk very well because there may be too much weight on the nose of the tub preventing it from dragging along. I forgot to weigh the boom but I think it's around 25#

td9clyde

01-14-2011, 07:25 AM

nice job that thing is cool verry detailed makes my stuff look like matchbox toyslol

9W Monighan

01-17-2011, 06:52 PM

Here's a video of my machine walking down a steep grade Sunday. We had a time getting it up there on that pile Friday:D

http://www.youtube.com/user/Scentlessapprentice9

Stepside

01-17-2011, 07:06 PM

Looking real nice!!

any pics or details on that CAT dozer up on the shelf????

9W Monighan

01-17-2011, 07:28 PM

Looking real nice!!

any pics or details on that CAT dozer up on the shelf????

D1-Look under the 1:1 topics.

modelman

01-18-2011, 10:53 AM

Steve-that's a great video of the 9W walking down the pile. I could see you were having some problems but I was amazed that the model would walk down a hill that steep. Did you walk it up the hill to start digging? Also I liked your hoist drum brake.:D

9W Monighan

01-18-2011, 12:25 PM

We walked up the planks, Scott,Ed and my son Mike all helped. Scott and Mike had to squeeze the shoes to the planks like when I stepped on the shoe in the video for traction. I had a low voltage problem too going up and couldn't get the cams to lift the machine,probably because we ran a little cord over 50' because we didn't have our own drop from the ceiling yet. Two of my buddies, one who worked on real draglines for years sat by and watched. They said; "when ever your ready Steve let us know:D I guess they wanted to help lift it up there:D
I'm going to do the math and see how I can remedy the hoist problem. I think I'm running right on the borderline with the current draw. When the point sheave is made it will be 3-5/8''dia. vs the 1-1/5'' one now that should help some. The dirt we had was really heavy too. I definitely need to make the cleats on the shoes and it should walk nicely on dirt then.

tc1cat

01-18-2011, 12:26 PM

Many thanks to all who posted links to the GREAT videos of this dragline. This show will have to be on my list of things to go to next year. Your dragline is one of the most impressive builds that I can think of.:D

9W Monighan

01-18-2011, 12:29 PM

td9clyde

01-18-2011, 05:18 PM

very awsome pics and video of your dragline awsome work

9W Monighan

01-19-2011, 08:12 PM

[QUOTE=I'm going to do the math and see how I can remedy the hoist problem. I think I'm running right on the borderline with the current draw. When the point sheave is made it will be 3-5/8''dia. vs the 1-1/5'' one now that should help some. The dirt we had was really heavy too.[/QUOTE]

Well I removed the hoist motor this evening and found my culprit. On the shaft that runs from the hoist motor across to the pinion that drives the big gear on the hoist drum there was a key missing :oand the set screws backed out some and the motor shaft was slipping inside of the bore. It used to be pressed on slightly too. I think this problem goes all the way back to August when the bucket was dropping (with dirt) unexpectedly. This wasn't noticeable here in my shop while just practicing operation with no load. Also when we're at a show there's so much noise you can't hear whats happening. In my shop no radio or heater going, I powered the hoist then grabbed the drum stalling it and while looking at a amp meter saw the motor only was drawing 0.6 amps and I could hear it running. I fixed the key tightened the set screws then tried again and with some adjustments to my DC drive I was able to stall the drum at about 1amp and that nearly takes your hand off trying. So I guess it will work fine for the next outing. I also need to fix some missing bolts on the drag drum jaw clutch because it's slipping some under a heavy pull into hard soil. Right now it's just pressed in. I'm surprised it hasn't given out completely. I guess for now I'm finding all the missing parts from such a long build.

D8R

01-20-2011, 02:07 PM

Good to hear it was a easy fix. Thanks for pics and videos from last weekend. If (when) my D8 is ready I may build a dragline, have always thought that boom had to be in steel but you have showed that brass is ok.
Dan

modelman

01-20-2011, 03:14 PM

Glad to hear it was not a major problem steve. Guess it could have been worse. To bad it had to happen at the show but I guess there is no good time for a break-down.

grumpygrady

01-23-2011, 02:35 PM

9W Monighan

01-23-2011, 03:30 PM

http://coaldiver.org/photos/navajo-mine-new-mexico

here are a few pictures from lee ranch in new mexico
sorry these are from navajo mine in north new mexico
i am still looking for some lee ranch pictures

I've seen this machine before. Look at the bucket, very strange setup- Chains inside, single dump rope, but has normal twin hoist and drag on a machine this size. I think there was a discussion about this machine on Stripmine.org

9W Monighan

01-28-2011, 09:36 AM

I sure would like to get back on the drag but I have some paying side work that's piled up and need to get to it. Maybe next week I can continue. Next step is to finish the boom point and make the walkway and hand rail,safety cable brackets, boom lights,deflection sheaves. I think I'll make sure I have the boom totally complete before moving on. It's so hard to pick up where you left off and I know if I don't put the walkway on now I'll never:rolleyes: