I have a Taig Bench top Mill. I am looking to confirm some of my settings as Iím a bit of a CNC milling noob: My system:
Nema 23 280oz stepping motors
Xylotex driver configured for 1/8 stepping
TAIG Mini Mill with 20 TPI Lead screws
Mach3 Software configured with native units of mm
Thus with 1/8 microstepping on a standard 200 step motor and a Taig 20 TPI screw:
8 x 200 = 1600 (steps/rev) 1600 x 20 (tpi) = 32000 steps/inch
1 inch = 25.4 millimeters. Thus for all axes
32000 steps/inch. = 1259.8425196850393700787401574803 steps/mm which rounds down to 1259. 84252 on the Taig setup screen
Now whatís confusing me is that I found a Mach3 xml file for a similar mill with <Steps0>1282.424009</Steps0> <Steps1>1256.826724</Steps1> <Steps2>1272.309527</Steps2>
Also what do I set Y, Y and Z velocity and acceleration to. I understand Z, because of its load, should be different to the X and Y but seem to see confusing recommendations regarding this. On one hand I have seen a statement that ďthe acceleration curve of the Z, which should not be anywhere near as high as the X and YĒ yet the file I obtained the setting for above shows:
Where clearly the Z velocity is much slower but acceleration much faster? Is this to give it more kick or something? Is it correct?
To confuse matters more imperial XMLís I have found for the same machine show exactly equal Z,Y and Z velocity and acceleration.
Iím perplexed LOL