Mach 3 motor tuning

[corneliusbrown]

Hey, just replaced a lead screw and i'm trying to figure out what my steps per mm need to be.

motors are set to 200 steps per rev. my driver board is set to 1/8steps.

lead screw is acme 1/2-10

i always have trouble figuring this out.

thanks

[gmfoster]

Originally Posted by corneliusbrown Hey, just replaced a lead screw and i'm trying to figure out what my steps per mm need to be. motors are set to 200 steps per rev. my driver board is set to 1/8steps. lead screw is acme 1/2-10 i always have trouble figuring this out. thanks

Well I haven't done this for awhile but lets give it a shot..

200 steps x 8 equals 1600 steps per revolution.
1 rev will take you .1 inch

to go 10 inches you want 10x1600 or 16000 steps.


10 inches =254 mm
254mm = 16000 steps

mm = 16000/254
mm = 62.992126

Close?
Garry

[corneliusbrown]

Hey- very close i figured it out and its actually 629.xxxxx

thanks though

[ger21]

He missed a 0.

to go 10 inches you want 100x1600 or 160000 steps.

254mm = 160,000 steps.

[gmfoster]

Originally Posted by ger21 He missed a 0. to go 10 inches you want 100x1600 or 160000 steps. 254mm = 160,000 steps.

So obvious
After I come back to it....