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Search took 0.04 seconds; generated 215894 minute(s) ago. Search: Posts Made By: modelman
Forum: Construction Equipment 06-13-2015, 04:38 PM
Replies: 171
Views: 51,202
Posted By modelman
Re: Dragline Crawler Build

Jim-I think everyone would agree on this. Practice is the best tool. Get to know your machine, find out the problem areas and learn how to work around them. You are doing great so far. Keep working...
Forum: Construction Equipment 06-12-2015, 01:06 PM
Replies: 171
Views: 51,202
Posted By modelman
Re: Dragline Crawler Build

Looking good jim-that is a nice beefy press you made. I agree with jared on the rollers, just a slight chamfer on the edges should help. I say you need some clearance between tumblers, rollers, etc.....
Forum: Construction Equipment 06-10-2015, 12:08 PM
Replies: 171
Views: 51,202
Posted By modelman
Re: Dragline Crawler Build

I know exactly what you mean about changing set-ups. When I got my 2-in-1 machine several people told me I would regret it but the price was just too good to pass up. However, I thought about what I...
Forum: Construction Equipment 06-10-2015, 10:58 AM
Replies: 171
Views: 51,202
Posted By modelman
Re: Dragline Crawler Build

Your scale looks good to me jim. Are you happy with it? I like the new frame rails you made. Adds strength, which you probably don't need but it helps the appearance. Are you about ready to make a...
Forum: Construction Equipment 06-08-2015, 01:39 PM
Replies: 171
Views: 51,202
Posted By modelman
Re: Dragline Crawler Build

Nice work jim-it's good to have the tools you need.
Forum: Construction Equipment 06-08-2015, 01:37 PM
Replies: 10
Views: 6,398
Posted By modelman
Re: CAT 5080 Front Shovel

I'm no fan of the plastic stuff but I like the machine you have chosen. I prefer the older style shovels but any type of shovel I like and will watch.
Forum: Construction Equipment 06-07-2015, 04:56 PM
Replies: 171
Views: 51,202
Posted By modelman
Re: Dragline Crawler Build

Looking good jim- to me the pads are the most tedious and time consuming job on these types of projects. Once you get those finished you can have some fun milling all the other parts. Are you using a...
Forum: Construction Equipment 06-05-2015, 01:20 PM
Replies: 171
Views: 51,202
Posted By modelman
Re: Dragline Crawler Build

Jim-I will keep watching. This is the only build going on here that I am interested in. Before your drill guide gets to loose and off center maybe you could drill it out and press a brass tube inside...
Forum: Construction Equipment 06-05-2015, 11:03 AM
Replies: 171
Views: 51,202
Posted By modelman
Re: Dragline Crawler Build

Jim-I know nothing about CAD drawing. I am using a simple, free program I found online. It is easy to use and can be accurate with measurements. Do you have a way to hold the brass pins in place?...
Forum: Construction Companies & Worksites 06-02-2015, 01:08 PM
Replies: 2,507
Views: 964,089
Posted By modelman
Re: Great Dane excavating co.

Looks like you are getting a lot of work done. Seeing that flat water, I couldn't imagine going there without a fast R/C boat.
Forum: Construction Equipment 06-01-2015, 12:59 PM
Replies: 171
Views: 51,202
Posted By modelman
Re: Dragline Crawler Build

Jim-you have the right approach. I made sample pcs. from anything I could find that was soft. Actually delrin works great. It machines good and is easy on your tooling. I made my final sprockets from...
Forum: Construction Equipment 06-01-2015, 12:55 PM
Replies: 171
Views: 51,202
Posted By modelman
Re: Dragline Crawler Build

Your math is good but chain drive pitch never changes. This type of track pads with the drive dogs coming up from the center causes the pitch to change when it goes around the sprocket. He can work...
Forum: Construction Equipment 06-01-2015, 11:50 AM
Replies: 171
Views: 51,202
Posted By modelman
Re: Dragline Crawler Build

Jim-welcome to the world of old shovel style tracks. This was a nightmare for me, but after many ruined parts I made it work. I don't think this formula will work for you because you have already...
Forum: Construction Equipment Tech 05-29-2015, 04:57 PM
Replies: 14
Views: 6,057
Posted By modelman
Re: killing servos!!!

Cosworth-you are not being realistic!! You don't want to spend a lot of $$ and you don't have a lot of room so what do you want--MAGIC--? I say live with what you have. DO NOT jam the bucket into the...
Forum: Construction Companies & Worksites 05-29-2015, 10:57 AM
Replies: 1,875
Views: 971,223
Posted By modelman
Re: LilGiantsConstrCO

Thanks joe-that clears it up. I wasn't concerned about the hydraulics (to complicated for me), I just wanted to see the physical part of it. Your operation is flawless as always. Great work!!
Forum: Construction Equipment Tech 05-28-2015, 01:51 PM
Replies: 14
Views: 6,057
Posted By modelman
Re: killing servos!!!

Maybe you need to improve your driving skills? Servos are not designed for demolition derby. But you probably need more servo. It's been a long time since I bought servos but back then even metal...
Forum: Construction Companies & Worksites 05-28-2015, 01:39 PM
Replies: 1,875
Views: 971,223
Posted By modelman
Re: LilGiantsConstrCO

Hi joe-;looks like you are enjoying yourself as always. Would you please explain how both boxes dump on the pup set-up -or maybe a video. Do you jack knife the pup and then drive over the edge of the...
Forum: Construction Equipment 05-26-2015, 02:07 PM
Replies: 171
Views: 51,202
Posted By modelman
Re: Dragline Crawler Build

Okay jim-now I got it. You were showing pictures of the pads that you were milling the drive dogs in. I thought you were milling all those chunks down to 1/8". Do you have a plan for making the drive...
Forum: Construction Equipment 05-22-2015, 10:13 PM
Replies: 171
Views: 51,202
Posted By modelman
Re: Dragline Crawler Build

Looking good jim, but I am puzzled by one thing :confused:. The pads look to be about 1/8" thick so why didn't you just use 1/8" flat stock and avoid all that milling. Am I missing something?
Forum: Construction Equipment 05-22-2015, 01:22 PM
Replies: 27
Views: 11,185
Posted By modelman
Re: Mammoth, what to do with this junk yard find?

wiskybilt-glad you got your issues figured out with P.B. This will make a nice R/C conversion. Electronics can be intimidating to some people but the advances made in the past years have made it very...
Forum: Construction Equipment 05-22-2015, 01:15 PM
Replies: 66
Views: 27,310
Posted By modelman
Re: Dragline Rebuild

The only thing I know that is hidden in my backyard is an old septic tank joe :D. If I had a project like yours I never would have sold my shovel and truck and would have made a few more models. I...
Forum: Construction Equipment 05-22-2015, 01:06 PM
Replies: 66
Views: 27,310
Posted By modelman
Re: Dragline Rebuild

Yes, I know they are still in use. Some are in Pa. and some are in Fla. and some in the Carolinas and probably others that I don't know about. There are-2-working here in Al. but there are...
Forum: Construction Companies & Worksites 05-22-2015, 11:58 AM
Replies: 2,507
Views: 964,089
Posted By modelman
Re: Great Dane excavating co.

Nice videos cooper-I enjoy watching that dozer work. That new blade is a much better fit for that machine in my opinion.
Forum: Construction Equipment 05-21-2015, 12:56 PM
Replies: 66
Views: 27,310
Posted By modelman
Re: Dragline Rebuild

Thanks jim-realistic operation is important to me in all models I have built. Also this is what I look for in other models. And yes, draglines are very efficient. I cannot understand why all mines...
Forum: Construction Equipment 05-21-2015, 12:38 PM
Replies: 66
Views: 27,310
Posted By modelman
Re: Dragline Rebuild

Thank you-I like the controllers also.

Thanks-A dragline is pretty simple to run, only-3-functions, but I am having a hard time handling the controls. Guess it is about time to hang it up.
...
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