
The right front wheel of my Roli keeps falling off. I open up the wheel and the e-clip has fallen off the axle. I push it back on, but it is not very tight, and keeps falling off. It now doesn't stay on at all.
I think it would be better to replace with the metal collar and set screw like the outside of the wheel, but I don't know what to search for.
Does anyone know what that collar is called and what size, or at the least what size e-clips I need to try and find?
For now, I tried using a bit of Sugru wrapped around the axle. When it cures I'll know if it worked, but I suspect it is just a temporary fix at best.
Alan
I'm sorry to hear that your Roli Wheel is falling off, one thing you can do is use a set of needlenose pliers and squeeze the e-clip in a bit and then snap it into place on the shaft. You just have to be careful you don't slip cause e-clips are known to fly away and never come back! I believe Zap found another e-clip in his stash of parts and replaced his.
Already tried to tighten it without success. Do you have the size? I would like some spares before trying again and I don't own a pair of calipers to get an accurate measurement. Better still would be the name and size of the collar used on the outside of the wheel. Looks like more than enough room inside for that, and it looks like a more reliable option.
Alan
I just happened to have some e-clip spares from my supply of RC parts. e-clips are used a lot in oil shocks for RC cars. The ones I used are from a Tamiya shock set (CVA Mini Shock set). There are roughly the same size but a bit beefier. I have not had an issue with them popping off since I replaced them with better clips but I still think the collar would be a better solution.
I'll look up the Tamiya shock set and see if I can get a size from that if @Jeremie or someone else from EZ-Robots doesn't come back with the specific size needed.
I should probably get myself a set of calipers anyway. I am sure I will need them, and some other tools as I start making more robots and need to do precise measurements.
Alan
Thanks for the tip. I actually have a local Harbor Freight store and it is in the same parking lot of the nearest hobby shop in the area, that is likely to have e-clips, so no waiting
Zap, would appreciate it if you can check as well when you get a chance.
The Sugru temporary fix has cured, and I suspect it will work for a couple of days at least, so I don't need to get replacement parts until the weekend.
Alan
It was so cheap, I went ahead and ordered this set. I'll know next week if it includes the right ones.
Alan
Thanks!
Alan
I'll let you know.
Alan