[Dan911]

I had same problem missing steps, and all started when using 1/16 ballnose with large a stepover. I fixed by shutting toolpath display off in Mach3. Easy test, maybe worth a try.

[Arbo]

There is a setting for pulse width in the Mach3 software that has a wider pulse width option. Try changing it, saving it, then restart Mach3. See if that works. Use some blue thread locker on the set screw if you haven't done that already.

I didn't find that, but I noticed in motor tuning that x and a were slightly different. Fixed that but didn't make a difference.

I had same problem missing steps, and all started when using 1/16 ballnose with large a stepover. I fixed by shutting toolpath display off in Mach3. Easy test, maybe worth a try.

with a large stepover? that seems strange... how do you shut the toolpath display off?

[CarveOne]

I didn't find that, but I noticed in motor tuning that x and a were slightly different. Fixed that but didn't make a difference.

with a large stepover? that seems strange... how do you shut the toolpath display off?

Mach3 standard screen set > Config > Motor Tuning > Step Pulse > 1 to 5 microseconds - try setting it for 5 microseconds if it is set for a lower value..

[Arbo]

Mach3 standard screen set > Config > Motor Tuning > Step Pulse > 1 to 5 microseconds - try setting it for 5 microseconds if it is set for a lower value..

Yeah was set to 2, changed to 3 and it made a difference. Not sure exactly what that does, but guessing perhaps my computer is getting to where it can't keep up with the lower number? Dunno, Will shift it to 5 as well and see what happens when I get home from work today.