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Hi againThanks for the fast reply...So...I'm using NEMA-17 steppers with 200 steps and 1.8 degrees on both X and Y axes. My drivers are set to 1/32 step resolution and the pulley's have 18 teeth. Your setup is 200 steps per rotation....18 rotation per in. and 25.4 mm per in. and no matter which setting I change it does not seem to make a difference.I hope this helps....because i'm lost...LOLMarc
Hi there....first of all...great project..I build my own 2 axis laser engraver... with belt drive and I used DRV8825 Stepper driver... mechanic and electronic works fine..i used gbrl and was able to make perfect circles. I rather use your setup with processing and got everything working...the only problem is my pic's come out oval instead of round...I tried changing the arduino parameters but nothing changes...any ideas...Thanks ...Marc