Quote Originally Posted by irving2008 View Post
hmmm, thats the second time I heard tonight that a reboot has resolved an issue with mach3... seems its quite poor at handling configuration changes...
The funny thing is it is only with the A axis and only in motor tuning, had me stumped for a while. XY&Z for some reason are not affected, I can alter velocity/accel etc and it works with pressing save axis.

I'll tell you another wierd one, Last weekend I was cutting a sign from 3mm HDPE for work, 4ft x 2ft. I'd asked for a cut that broke through to the spoilboard by 1.5mm to take off any rags on the cut edges. It cut fine but I noticed that at the far end the cut was barely through. This sign wasn't cut from front to back, the head was all over the place as is the wont of CAM software but from front to back the depth of cut varied smoothly. Bring the cutter back to Y0 Z0 and the cutter was where it was supposed to be. Now as a check, I zeroed my Y to a 3mm thick gauge plate, jogged the Y axis to 1250mm and it was perfect. I've checked the G code and it was fine, max Z depth was always 4.5mm. This only started happening with the latest Mach. I thought at first I was losing steps on the Z but like I say, the cutter was all over the place cutting out letters and graphics, it wasn't a raster type cut.