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Post by spaceduck on Jul 20, 2014 2:17:50 GMT -6
Hi, am trying to make the mechanism work for the 1/12 super digger, it seems one of the plastic shafts bends under load, I think I have to replace it with a metal one, and also the electric motor won't run under load, maybe to weak..? Anyone got experience with this or build the kit let me know!! thanks! Attachment DeletedAttachment Deleted |
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Post by davekapp on Sept 9, 2014 21:54:45 GMT -6
I always wanted one of those, good luck with it.
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Post by Paul B. Canney on Sept 14, 2014 17:54:03 GMT -6
Tim Nolan is the only other person on the planet that I know of that has built one of these. I'll rattle his cage
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Post by Tim Nolan on Sept 18, 2014 8:33:21 GMT -6
Yes I have. Thi is not the best design in the world, but it will work with a bit of massaging. Can you post closeup pics of the parts you are having problems with? As suggested, you can easily fabricate a lot of stuff from brass or aluminum rod/sheet. It takes a little time and effort, but makes for a better product. All of those motors were fairly weak, but usually once they are run for a bit they get better. Years of dirt and corrosion build up on the armature, and the brushes get all grungy. If you have any experience with RC/slot car motors, same thing, you can take it apart and clean it. If not, try your LHS to see if anyone with some experience with RC or slot car motors could help lend a hand. 40 year old plastic tends to get brittle, especially if it may have had acid leak at some time from those old batteries. Clean everything well, lubricate up the moving joints with some clear grease. The rail itself is fairly heavy, so it is important everything works smoothly to lift it and spin those tires. It's an awesome kit, well worth any effort to restore it! Good luck! You can contact me further if need be at finktim@aol.com or visit my web site to see my built model in the gallery of kustom cars and bikes at www.ratdaddystudios.com Tim |
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Post by Tim Nolan on Sept 18, 2014 8:36:48 GMT -6
I looked at your photo up close, which shaft is bending, that long one?
You may just have something bidning up, because that one is fairly thick. It also may have to have the cover on it when it runs. Isn't there like "walls" around it to hold it in place and keep it from flexing? Can't remember, been too long since I did mine.
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