Those of you out in the know, what kind of accuracy
would you expect from the following,
P4 2.5 GHz desktop
Mach 3
DB1 Breakout board.
Amteck DC servos 60v
gecko 320`s
us digital 500cpr mounted on ballscrews
25mm dia,10mm lead precision ground ballsrews
with zero backlash nuts
on the x,y and z axis of a Chinese Mill drill.
I have 2/1 timing pulleys on the X and Y
and 3/1 timing pulleys on the Z axis setup with a gas strut.
What I would like to know is what accuracy would you expect
with a dial gauge.
My guess is around 0.005mm (0.0001")
am I dreaming.
I don't know whether am loosing steps or with a coarse ballscrew
thread (10mm) and higher encoder count its the best I can do
which is any where from 0.04mm (0.0015") to 0.15mm (0.0059").
I have tried 250 cpr encoders on the motors but accuracy is worst.
I can also guarantee, by dial gauge that there is no backlash.
Could I try linear encoders,if so do they work with mach 3.
Any help/thoughts would be great.