KirTech LAB Posted January 21, 2016 Posted January 21, 2016 Hello all! I haven't found any information about buggy-motor disassembling but if it was discussed here I ask Jim to delete this topic. I had a problems with one buggy motor for a long time. Recently I had a few experiments with electronics and this motor worked very badly: sometimes output shafts stayed static when the inner motor worked. So I’ve decided to disassemble it. I hope this video will be absolutely useless for you and your buggy-motors will be Ok :) Use the subtitles! Thanks for watchimg! Quote
RohanBeckett Posted January 21, 2016 Posted January 21, 2016 Good video! I also have a motor (one from the Creator/Inventor set, with the clear casing, (47154) that has a gear, with a single broken tooth I have tried searching various hobby/online websites, for a similar sized gear, but it appears the Lego one is unique - all ones I could find have an even amount of teeth (12, usually), whereas the Lego one only has 11 Quote
Tommy Styrvoky Posted January 21, 2016 Posted January 21, 2016 (edited) I have a couple thoughts, maybe build up the area where the teeth are gone with epoxy, then after it dries, it could be re shaped with a file to have the teeth again. Maybe buy a burned out motor on bricklink and use it for the innards. Or maybe efferman could make a 3D printed gear replacement, though I am unsure of how well a 3D printed gear would work, but it's an option. Edited January 22, 2016 by Tommy Styrvoky Quote
ARXD Posted January 22, 2016 Posted January 22, 2016 What about 3D printing for that damaged gear? Quote
nerdsforprez Posted January 22, 2016 Posted January 22, 2016 Great video. I have seen XL motors as well as M motors taken apart. But I think this is the first time I have seen a RC buggy motor taken apart. As for the post above..... I am not sure a 3D printed part would be easy to obtain. The measurements would have to be exact. Without the original blueprints... .this may be difficult. Quote
dr_spock Posted January 22, 2016 Posted January 22, 2016 Thanks for the video, it's interesting to see the insides. You could buy assorted packs of small plastic motor gears from hobby shops or online. If you have the measurements of outside diameter, pitch diameter, pitch, etc. you could find an exact match. Quote
Tommy Styrvoky Posted January 22, 2016 Posted January 22, 2016 (edited) Great video. I have seen XL motors as well as M motors taken apart. But I think this is the first time I have seen a RC buggy motor taken apart. As for the post above..... I am not sure a 3D printed part would be easy to obtain. The measurements would have to be exact. Without the original blueprints... .this may be difficult. I don't think It could be too difficult, you could measure it a wide variety of ways. A caliper would be decent for this application, or even a orthographic picture of the part with a ruler next to it could be used to scale it in a image editing software. It would be easy, and you could calculate every distance on it. (pixels of unknown)(pixels of known distance/known distance) If there is a worry on if it would be too small, it could be upsized slightly and filed down if necessary. I worry that a 3D printed part could fail though, maybe make a resin cast of a 3D printed part, as it's one uniform part cast solid. Edited January 22, 2016 by Tommy Styrvoky Quote
KirTech LAB Posted January 22, 2016 Author Posted January 22, 2016 Thanks for your suggestions! I had no deals with 3D printing - what will be the life time of such part under ~3000 rpm ? Quote
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