Quote:
Originally posted by M. Krass
When you put this drivetrain together, were you sure to insert the left-handed screw into the center of the drill output shaft?
That screw prevents the shaft from backing out.
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Even the left-handed screw caused us a bunch of problems back at 2000. Not sure if the ones this year is much stronger or not, but don't take it for granted that it will hold together all the time.
We snappend 5 or 6 left handed-screw that year, and they are very hard to replace.
Try gearing your robot to be stronger and slower.
Also, about the thread in your coupler is stripping out... Did you put a pin in the coupler? By adding a small pin, part of the force will transfer onto that pin. But if you are still having trouble even with the pin, I suggest building a new shaft completely.