I have a Preneex 60w Blue China Laser with a Ruida controller.
I made my own homemade chuck style rotary. I bought this motor from Amazon to run the rotary High Torque Nema 23 CNC Stepper Motor 114mm 425oz.in/3Nm CNC Mill Lathe Router. Also have cogged belts and pulley. Used a roll pin thru the pulley instead of set screws. I did alot of test burns to get the correct Pulses per rotation. I burned 1 in squares till it was 1 x 1 on the radius of the cardboard tube.
I not sure what setting I need to change to fix this problem. I can’t get it to do a nice clean burn. It looks like it skips a line. My other Rotary setups work just fine. I am wondering if my chuck is just to heavy and may need to fill it full of holes to lighten it up.