Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Steve,

You got it all back together, ready for Cabin Fever right? See you in a week.

Jim

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Had to order another 2000 0-80 socket head caps screws.

http://imageshack.com/a/img921/7916/WcJrE1.jpg

A frame going back together. This part still needs several angle braces added. That will come later when time permits.

http://imageshack.com/a/img922/6762/rDScPC.jpg

Walking shaft

http://imageshack.com/a/img921/8537/Cb1zqd.jpg
http://imageshack.com/a/img924/2964/Ky9PAv.jpg

Machinery frame
http://imageshack.com/a/img922/6572/J92r4C.jpg

Shoes have paint
http://imageshack.com/a/img923/5448/olbGzz.jpg

Parts
http://imageshack.com/a/img924/3824/9MqWp6.jpg
http://imageshack.com/a/img922/381/jZ6Qt3.jpg

Assembly begins
http://imageshack.com/a/img922/9536/QVvhGW.jpg
http://imageshack.com/a/img922/2671/2NB9Ie.jpg
http://imageshack.com/a/img922/4591/v398wY.jpg
http://imageshack.com/a/img923/417/VbueTC.jpg
After about 16 hours got some more assembled. Not painting any brass parts yet. There is not enough time to get these parts done either
http://imageshack.com/a/img921/5117/YmsBNF.jpg

Boom attached just had one heck of a time getting the suspension cables untangled.
http://imageshack.com/a/img921/830/qKKy8z.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Steve isn,t it amazing what a little paint will do. Looks great keep up the great work. Ed

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Holy Chunky Mother of Hot Applesauce !!! Thats Beautiful Right there.
The Main Attraction at Cabin Fever Expo 2017 :drool:

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

;):D:D:D

;)

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Looking good Steve-I see you are giving Walter Bennett a challenge on most bolts used (rivets).:D I think I see a brake band on the rear drum. Is this a work in progress? Nice job!!

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Brake band is in progress. No time right now. This was one of the reasons for the tear down. Now I have the machining done on the main frame to attach the necessary parts. I was going to use servos to actuate the clutch and another to set the brake. Changed my mind because I think a servo will burn up if the clutch doesn't shift exactly as it should without binding. And if it binds, I can't hear or see it with all the outside noises at shows. I am experimenting with some lineal and rotary solenoids.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Came across this video today of the first time out with my new Marion controls.


https://youtu.be/vEEWWk-L6lo

.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Looks like a good time to me! :p

Jim

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Decided to spruce up the bucket with some red paint to resemble the ESCO bucket I duplicated some before this weekends "Big Dig" at the National Pike Show. Last time out at the Cabin Fever Expo, I had trouble seeing my bucket with the lighting there. There are still wear plates and better teeth that need made on this bucket but that will come some day.

http://imageshack.com/a/img924/7835/zARgl4.jpg

A quick dusting off in the sand blaster booth

http://imageshack.com/a/img924/9655/T0XV5f.jpg

http://imageshack.com/a/img924/7762/2w0HuF.jpg

http://imageshack.com/a/img923/9344/5bmZtQ.jpg

http://imageshack.com/a/img924/9282/APlGOC.jpg

http://imageshack.com/a/img923/4408/3l125B.jpg

http://imageshack.com/a/img922/4876/nnDNTn.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Sweet! Gona be fun watching that get dirty!:D

See you Thursday afternoon!

Jim

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

After years of searching I picked this little gem up this week. It took a long time to find just one but now I have two. One for each side of the boom.:bounce:
These are actual porcelain enamel signs Bucyrus-Erie had on their Bulldozer cable controls from the 1940's - 50's

http://imagizer.imageshack.us/v2/102...924/Y2SfAt.jpg

http://imagizer.imageshack.us/v2/102...922/LCUBzu.jpg

Here is the other one I have

http://imagizer.imageshack.us/v2/102.../dscn2091h.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

SWEET You lucky boy. Now it's Perfected. Looks awesome :)

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

The bucket looks killer with some paint on. Did it help visibilty as much as you hoped?

But those signs are way over the top cool!

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

The red bucket was much more easier to see. Shows up better in pictures too.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

The model is pure awesomeness in itself, but the signs and red bucket really do add something. Nice touches.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Haven't looked at this thread in awhile and wow great work! I wish I had that good of a detailed bucket for my dragline build!

Question what are your motors running rpm wise, im trying to size my motors for my Marion 8750 and having a hard time figuring that out on speed and torque needed. Thanks!

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

I used the technical data from my machine's spec sheet to get the feet per minute from each function.
My motors are:
Swing-2500rpm 1/17hp 130vdc
Drag- 500rpm 1/12hp 130vdc
Hoist 417rpm 1/29hp 130vdc
They are geared down to approx scale feet per minute through the gearing. The drag is too fast so I have the max rpm turned down.Someday I want to build the gearbox for the drag correctly using all the gears exactly like the 1:1 machine.
I can also change my speed by changing the stick travel with the limits on the DX7 transmitter.

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

It has been very hard to find any time to focus on this due to being busy at work all the time.So I found some time to do a little work on my 9W before Cabin Fever. Since it was very hard to see last year at the show I painted the bucket last summer and I added some lighting to my boom. I bought these bolt LED's and turned them down to fit inside of some old Lionel flood light housings.

https://imageshack.com/a/img922/2346/zKGHK3.jpg

Turning down from 11mm to about .360" dia
https://imageshack.com/a/img924/2611/kTWotc.jpg

https://imageshack.com/a/img922/4120/sRvWrm.jpg

3 Lights installed
https://imageshack.com/a/img924/1858/6ISBe0.jpg

Re: 1/16 Bucyrus-Monighan Walking Dragline
 

Well I found a little time to break out my model again and get to some more parts that need made. I decided to make some roof trusses and get some cover on this thing.

I made a simple fixture to machine the "T" bars since you can't buy the size I need.

https://imageshack.com/a/img921/3517/bfdCrg.jpg

A little scrounging around and came up with a cutter stack to mill these with a .040" web and flange.
https://imageshack.com/a/img924/2883/q2C34c.jpg

Four cuts to depth and they turned out nice. Bigger cuts caused some problems.

https://imageshack.com/a/img922/3466/YXBdFC.jpg

A few ready for next step
https://imageshack.com/a/img922/1083/GEQlbG.jpg