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Building the Y-Axis  

New Member
Building the Y-Axis

is this normal? Everything seems to be aligned, all 4 corners are stable, belt is taught but it does this. Is it binding? I'm not pushing hard, very gently.

This topic was modified 1 year ago by Matt
Posted : 25/09/2020 5:55 am
Estimable Member
RE: Building the Y-Axis

Use process of elimination, what happens if the belt is off? Also try loosening the nuts on the ubolts.

This post was modified 1 year ago by GKMAKEIT
Posted : 25/09/2020 7:27 pm
Active Member
RE: Building the Y-Axis

You are feeling the resistance of the stepper motor.  As GKMAKEIT suggested, when you take off the belt you will notice all that resistance goes away.  There are magnets in the stepper motor that are coming into and going out of position with the motor rotor and that creates the resistance.  By the way when you move any stepper motor like that, you are actually creating voltage at the coil outputs.  That can damage your electronics, so be careful not to do that when you are all hooked up without doing a motor off command first.

Posted : 27/12/2020 1:47 pm
Alan B.
Eminent Member
RE: Building the Y-Axis

You might want to make sure that the bolts on the bearing retainers aren't too tight.  Overtightening them can cause the bearings to bind.

Posted : 28/12/2020 4:26 am