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Search took 0.03 seconds; generated 51114 minute(s) ago. Search: Posts Made By: cdm
Forum: Construction Equipment Tech 03-05-2013, 06:40 AM
Replies: 20
Views: 5,440
Posted By cdm
Re: Solidworks help... Track pad

you could if you go down to m2 10.9 or 8.8 steel bolts will hold. the problem is the threads will probably get caked in/rust and seize during future disassembly; same for m3 though

else circlips...
Forum: Construction Equipment 03-04-2013, 01:42 PM
Replies: 104
Views: 46,604
Posted By cdm
Re: My Mruder (bruder cat320 something look alike)

Yep it will be one piece. Decided on that months ago. Which is why my upper section looks a bit weird still

Made the 2 platforms. One for the hydros and one for the electronics so they wont...
Forum: Construction Equipment Tech 03-04-2013, 01:29 PM
Replies: 20
Views: 5,440
Posted By cdm
Re: Solidworks help... Track pad

2024 alloy should suffice
Forum: Construction Equipment Tech 03-04-2013, 12:05 AM
Replies: 4
Views: 1,784
Posted By cdm
Re: Valve servos

or 3153/mg if you want digital and 6v compatible


and a few more im sure with same pattern/size that will work. i went with 3153 and they are great. even survived a fluid bath
Forum: Construction Equipment 03-03-2013, 05:26 PM
Replies: 503
Views: 408,328
Posted By cdm
Re: CAT 374D L

or in that case aluminum flux, then power sand down on the belt. has like 30000psi strenght vs 2000 (at best) for filler.

given all i've seen im surprised thats all the items that didnt come out...
Forum: Construction Equipment Tech 03-03-2013, 05:22 PM
Replies: 20
Views: 5,440
Posted By cdm
Re: Solidworks help... Track pad

Bolt/screw/hole wizard in SW is pretty easy to work with

hang on let me get it started for a screenshot

http://i.imgur.com/fPaNj9H.jpg

right up there. you generally want to define it prior...
Forum: Construction Equipment 03-01-2013, 09:03 PM
Replies: 104
Views: 46,604
Posted By cdm
Re: My Mruder (bruder cat320 something look alike)

Finished the turntable, mounted the motors. I feel i nailed the speed and torque this time around.

Added a reinforcement plate to eliminate any main floor twist during stress on the carriage
...
Forum: Construction Equipment 02-28-2013, 10:53 AM
Replies: 104
Views: 46,604
Posted By cdm
Re: My Mruder (bruder cat320 something look alike)

http://i.imgur.com/C5VnuCn.jpg


box is done, tracks mounted.. all lines up perfect. i was measuring within .5mm accuracy. i figured any more and it would be an overkill. but i think i came to...
Forum: Construction Equipment 02-25-2013, 01:55 PM
Replies: 104
Views: 46,604
Posted By cdm
Re: My Mruder (bruder cat320 something look alike)

Decided to finish up my box today... Halfway in drilling the 2nd plate (out of 4) my extrator drill bit snaps.. the standard ones won't even dent the 2" deep plates...

So thats it for now.
...
Forum: Construction Equipment 02-22-2013, 04:14 PM
Replies: 715
Views: 331,098
Posted By cdm
Re: Kenworth 850 Off Highway

Since you are using a bandsaw.. how long do your blades last for?

I go through carbon blades after a few plates of aluminum.. 18tpi (highest i can get in my size)
Forum: Construction Equipment 02-22-2013, 12:25 PM
Replies: 104
Views: 46,604
Posted By cdm
Re: My Mruder (bruder cat320 something look alike)

it's just a gearbox motor with a worm box instead of a planetary like what you generally see with these.

its nice because it isn't tall saving you space so you can have a flat undercarriage, also...
Forum: Construction Equipment 02-21-2013, 07:36 PM
Replies: 104
Views: 46,604
Posted By cdm
Re: My Mruder (bruder cat320 something look alike)

I drank some coffee so decided to get some more done. I have been racking my head around the turntable for a while but i refuse to spend 400$ on the one from fumotec. besides, i cannot because my...
Forum: Construction Equipment 02-21-2013, 12:50 PM
Replies: 104
Views: 46,604
Posted By cdm
Re: My Mruder (bruder cat320 something look alike)

http://i.imgur.com/hiqBHA0.jpg

http://i.imgur.com/IlMF6Yw.jpg



as you can see i am short on rollers and stuff..... (ordered last night) but you get the idea. the bolts i'll have to cut...
Forum: Construction Equipment Tech 02-19-2013, 12:15 PM
Replies: 8
Views: 2,302
Posted By cdm
Re: ok i did it!

3. you should redo the bucket linkage. thats the first thing to go on the stock bruder. the boom itself is sturdy enough that the weight of the stock bruder will not allow you to damage it! you will...
Forum: Construction Companies & Worksites 02-17-2013, 01:30 PM
Replies: 1,875
Views: 971,223
Posted By cdm
Re: Hauling Dirt out of my basement (present day)

needs a spotlight aimed where the bucket goes.. those halogen ones from china are great and give off plenty heat as a bonus).
Forum: Construction Equipment 02-17-2013, 01:04 PM
Replies: 104
Views: 46,604
Posted By cdm
Re: My Mruder (bruder cat320 something look alike)

you are telling me. scaled it all properly for the veroma tracks and idlers.

here is a better idea of how it is going to sit. their sprocket uses 8mm bore but i will run 6mm like the idler and...
Forum: Construction Equipment 02-17-2013, 05:42 AM
Replies: 104
Views: 46,604
Posted By cdm
Re: My Mruder (bruder cat320 something look alike)

http://i.imgur.com/ZUuZ7qW.jpg

prototype 1 of the track carriers has been sent for milling. no holes for idler and sprocket yet as i'll add these manually (or calculate them later and send for...
Forum: Construction Equipment 02-15-2013, 09:28 AM
Replies: 104
Views: 46,604
Posted By cdm
Re: My Mruder (bruder cat320 something look alike)

Some better shots of the cab..

http://i.imgur.com/xI375WK.jpg

http://i.imgur.com/dyOmWzE.jpg

http://i.imgur.com/yiI31Fp.jpg

Haven't decided if the door will be a slider or a hinge.
Forum: Construction Equipment Tech 02-13-2013, 12:03 PM
Replies: 5
Views: 2,477
Posted By cdm
Re: Witch axle to use on articulated dumpers ?

over 430 per axle for pot metal (zinc) is more than i consider it to be worth.

depending on your other components you can use several aluminum axles for under 150$ each that will be just as...
Forum: Construction Equipment 02-13-2013, 11:40 AM
Replies: 104
Views: 46,604
Posted By cdm
Re: My Mruder (bruder cat320 something look alike)

Styrene work last night and some earth box testing. none of that you can see here.

Today it was time to give it a real test

Keep in mind my yard is packed gravel and clay; Not natural earth...
Forum: Construction Equipment Tech 02-13-2013, 10:38 AM
Replies: 7
Views: 2,557
Posted By cdm
Re: need help finding tracks or building them

thanks for posting those. i ordered some to see if i can use them for my new carriage.

you have to order manually for overseas shipping (email/phone). thomas has no problems with english so all...
Forum: Construction Equipment Tech 02-11-2013, 05:18 PM
Replies: 7
Views: 2,557
Posted By cdm
Re: need help finding tracks or building them

No it's your scale. asfik there is like 1-2 1:10 in existence and they are limited run custom built. Not much luck there

but look here. 1:16 and 1:8 and you can even push 1:5 if you so wish
...
Forum: Construction Equipment 02-11-2013, 03:23 PM
Replies: 23
Views: 10,682
Posted By cdm
Re: Liebherr R934

hydro line channels cut inside the boom. nice

are you using reinforced nylon cut on waterjet? or some other material
Forum: Construction Equipment 02-11-2013, 02:54 PM
Replies: 104
Views: 46,604
Posted By cdm
Re: My Mruder (bruder cat320 something look alike)

Forgot to mention, current weight is 20.08LBs. I expect to top at 25 with the extra ballast. Right on my target of 20-30lbs final weight. :)
Forum: Construction Equipment 02-11-2013, 02:03 PM
Replies: 104
Views: 46,604
Posted By cdm
Re: My Mruder (bruder cat320 something look alike)

http://www.youtube.com/watch?v=pje467gi0GE

full functions test a success. I walked it out there under its own power (no way to film and operate it at the same time, will have to tripod later).
...
Showing results 126 to 150 of 197
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