Motor 2 Malfunction
There is an issue with stepper motor No. 2. While motors No. 1 through No. 6 lock completely when powered on, only motor No. 2 rotates freely by about 5 degrees after the power is turned on. I would appreciate it if you could advise me on the cause and possible solution. Thank you in advance.
6 replies

Chris Annin
Can you check the coupler between the motor and the gearbox? There is a small black plastic cap on the side of the gearbox. If you remove the cap you can access the coupler and tighten with a hex key wrench. This has been a common issue in the past. I have contacted Stepperonline and this should have been addressed so they come tightened. Please let me know how long ago you purchased your motors kit.