I bought a Longer LK1 about 8 months ago. I started having layer shifting problems. I've narrowed my problem to a bad stepper motor. I haven't had any luck with the Longer3d.com site. I can't find one online either. I've even looked under Alfawise U20 with no luck. I purchased one I thought would work from Amazon. Not working for my printer.
My question is...
What other companies stepper motors are/would be compatible with my printer?

Thanks, V.S. (Osogrande)