Hi Mike:
There can be alot of reasons for losing steps. The fourth digit is not one
of them . Mach2 keeps track no matter the number of digits. If you'd like to
see 5 or 6 digits, then you need only change the DRO in the screen designer.
Trust me, the problem is other than mathmatical.
Now as to what this particular problem is, we need some testing I think.
400 steps per inch is VERY low and it may be an acceleration problem.
Resonance sets in easily in something this low, other problems can also be
accentuated by such a low count. Though this seems to be a normal resolution
for plasma work because theres no cutting torque required, pretty strong
motors are needed if actually cutting material with this low resolution. Is
this servo's or steppers. How many oz/inch if steppers?
Is it doing this in the air or only when cutting.? Only router (or
spindle) off or on?
Thanks,
Art
www.artofcnc.ca
> If I run simple patterns, I don't loose any steps. If I do some
pocketing or engraving, I start loosing steps. I think (I'm probably wrong)
that I am seeing an accumulation of fractional missed steps because Mach 2
goes out to the forth digit and I am only able to go .0025 on the y and
.0005 on the x.
