Arduino OPTA and PWM

i am using an Opta Ext A0602 Analog i am attempting to drive a Stepper Motor with a Stepper online DM542T driving a roller for a pre-printed label dispenser , i have the user button setup to dispense the labels and are not coming out at a Consistent Length every time. has anyone else had this issue that could possibly help me . thank you so much i do have Code i can submit ,

After you read the pinned post re 'How to get the most from the forum', do what is suggested then someone can assist possibly.

Did you have any luck resolving this? Jump in my DMs I have the same issue. I haven't had any luck getting PWM to output a waveform even once yet...

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