[baxter435]

finally getting this cnc in motion...when i made some circles with a pen in the spindle i can see the circles are not really round they are made from short straight line segments. are there settings to smooth them? i made the circles in Aspire 8.5. I thought i remember reading something about this issue before. Thanks K

[OlfCNC]

Try to change your constant velocity parameters.
I see you are in the USA so you probably working in inches and the default settings in uccnc I think are sized for metric, so you want to set those a bit lower for inches and then your circles will get rounder.
What the parameters do are described nicely in the uccnc manual, so might wanna read that also.

[baxter435]

thanks or your comment. I found ger older post on cnc drive forum too. I'm trying to dial it in the best i can now. I also read the manual part about this adjustment and function again also. This being my first cnc router with new software that i have never used and a complete retrofit on hardware can be a bit confusing at times. I know this wont fix all of my issues but will certainly help. I have some mechanical tolerances in need of attention also. But one hurdle at a time. K

[A_Camera]

finally getting this cnc in motion...when i made some circles with a pen in the spindle i can see the circles are not really round they are made from short straight line segments. are there settings to smooth them? i made the circles in Aspire 8.5. I thought i remember reading something about this issue before. Thanks K

I don't know Aspire, but how does the G-code look like? Are circles made up of a huge number of G1 X,Y moves or made up of arc G2 and G3 moves? Can it be the way you have the pen attached? I think it is better if the X,Y moves are handled by the motion controller software, like UCCNC. It is also better if you use constant velocity for circles.