rear lead screw dropping
Hi i have just gone to do my very first print and after my last filament calibration the rear z screw dropped the back of the bed to 30° lower now when i wind it up manually it just drops back down again and it keeps doing it any ideas
29 Replies
triple check the bolts on the coupler holding the rod to the z motor
sorry I misread. It only has this problem when the motor power is off?
Yeah its like the motor has no resistance to fight the weight of the bed ill attach a video now of how easy that particular screw is to turn
Just have to tickle it to spin it with motors disengaged and thats when its already dropped like this
its like that motor has no holding torque. Are the other Z motors that easy to spin?
No they spin but not like this one
I suspect its either motor or driver possibly wiring but its printing right now so im going to take the whole system out when it finishes in a hr
Swap the rear motor for one of the front Z and see if the issue moves or not
Any ideas ill welcome
that'll narrow it down to the motor or the controller
Well i was thinking could i not just pop the controller out and swap it
true, that'd be even easier
Lol
with the power off!
Dw i was thinkin the same thing a hr ago then i was staring at it and thought ah yeah lol
But still, even with my (3.1) completely unplugged, the motors don't let go like that
Yeah my friend sent me this 5 mins ago but hes not got a vcore just very clever with electronics