[Craigpat]

Hello,

I was running a test convex & concave surface. Basically a bowl with a bump in the middle. It appears at the transition from running - to +. It ran flawlessly until this point 14000 line in or so.Z went to -0.2760. Clearly off material.I though at first it was too fast on feed where it went too high before stopping or maybe a backlash issue. I'm open for thoughts and suggestions. I'm glad i ran a test.

Thanks
Craig,

Solid Cam 2010
Mach3

Code attached.

[awerby]

Without knowing more about your machine or how you're running it it's hard to say what the problem is, but I doubt it's backlash. It sounds more like a lost steps issue.

[Craigpat]

Awerby,

I ran another test this evening. I did hear the Z stall or have some sort of issue. Subsequently same problem. I believe i was running to fast. I'll do some tweaking and see what happens.

Thank you

[solidcamx]

Use the HSS, it is easier to determine the tool path.