Topics

1

General Mach Discussion / Z stop errors

« on: February 28, 2018, 09:23:16 PM »

Hi all -
I built a gatton cnc.  All good.  My Z home, ++ and -- were working fine, then I kept getting resets.  I figured it was the z-- and z++ because when I shut them off all good.  I check the wiring no issues and when I toggle the limit switches I do get the yellow flash on the diag screen with the home switch.  I have the switches in series with active low X, so its hot 5v.  I must have toggled something else I am thinking for this to happen, anyone have any ideas?

My x and Y are fine.

Thanks
John

2

G-Code, CAD, and CAM discussions / Fusion 360 Mach 3 cutting circles problem

« on: February 11, 2018, 09:50:16 PM »

Hi
I am new to cnc having just built my own.  I am using fusion 360 for cad and cam and Mach3. My machine is running great and cuts squares about as perfect as I can measure.   My problem is that when cutting a circle it’s cutting about 2/100 small. I am not leaving any “stock to leave”or any of that.  Any ideas on what could be happening?  Thanks in advance.
John