so i got this reply last night — very nice and very quick!!!
Thanks for the suggestion.
However - we experience the same thing with a standard nut - after about a 1/4 rotation, the nut should jam against the motor housing and become self wrenching as well.
Just for reference - in the next revision, we’ll be changing the bolts to socket head (from button head) which will leave enough room to put the bolts in the opposite way they are being put in now.
and yet i see a few things wrong about this reply:
- the motor mount nuts supplied with the SO3 just keep spinning and spinning, and the trick of wedging a tool tip in there also fails.
2a) using the eccentric nut is a one-handed operation — the second hand is needed to pull tension on the stepper motor itself.
2b) the revision mentioned is possibly a three-handed operation (hand on hex key, hand on wrench, ??? on motor tension)?
- such a change does not help current SO3 owners who need the already-stocked parts to solve this issue in a simple and immediate manner.