Help with Mesa card seletion

Yep, the tool mark will happen. Mostly I want the Pause to work while doing the first part test runs. I like to pause it short of the end of each move just to get an eyeball on it. Mainly, just recheck the distance to go and make sure I haven't completely goofed my program. Of course I could have just kept everything at a crawl to avoid the crash but what fun is that. Also, once I figured out that it can completely loose the tool path and randomly ruin parts and cutters (and maybe me), thats how I got here.

Loading up linux on a pc now.

As bad as you make it sound it is a wonder anyone bothers with Mach at all. I never tried it myself. Lucky for me Mach wasn't compatible with the hardware on my first Linuxcnc project!

It most certainly is as bad as it sounds. If there had been anything spelling this issue out up front, not a chance I would have went with Mach. I'm sure I'm in for a ride learning LinuxCnc but if the machine is safe and predictable, I'm up to it. One of the reasons I spelled out my experience was specifically that others may see it and make an informed decision.

Off for 3 days of tail gating. Go Hokies.

You will be very happy with feed hold. it is instant (as fast as the machine can de-accelerate.) Takes off right where it left off.

that being said - I don't use feed hold anymore. Since we hooked up maximum velocity to the jog wheel.

It lets you sneak up on a part (caps the maximum feed of a program - not scaling like feed override).

Wow, my math skills are very rusty. Took a few trys but I see your numbers are correct. Thanks