Hello all, I've been using Mach software for some time now,(Since Mach 2) but haven't really done much with setting up Mach software. So my problem is this. My Z axis moves very freely. When I reach the end of the G code program the motors shutoff and the z axis will move down which will lose my z "0". I use BobCad/Cam to generate my G & M codes. I have tried to eliminate the M30 code but it still shuts off the axis'. I'm sure it's a post processing problem but not sure how to correct it. I also would like to point out that when I choose the Mach 3 post processor in BobCad/Cam my milling machine has a few issues, like making a big looping motion before it will start the programed cut. However if I chose the Mach 2 post processor and delete the first line in the G code program, it works properly except at the end of the program when the motors shutoff and I lose my Z axis "0". One other thing I'm having an issue with is the smoothness of cutting an arc. I thought i read some where that using Mach 2 this was normal, but with Mach 3 the issue has been resolved. If so what do i need to do to make the arcs smooth instead of egg shaped. Thanks for your help!!!!
Pat