Originally Posted by Moondog Mr Bean..
It is a 10mm pitch 30 tooth pulley. The belt is attached to the gantry. i.e, the belt moves the gantry. The reduction is 27 to 1.
Using your calcs, would mine be...
10mm pitch * 30T = 300
1mm / 300 = 0.0033333333
0.0033333333 * 27:1 reduction = 0.089999999
0.089999999 * 2000 steps = 179.9999 steps per mm of travel.
OR ?????? per step.
cheers |
Well look at that. Your calc comes out exactly the same as doing it my way. Actually it's not my way. I used the formula from the Mach2 manual.
OR ?????? per step.
Just do: 1mm / 179.9999 = 0.00555555 Same as you got earlier.
Bennys suggestion is a good one. I'd start at 179.9999 steps/mm in Mach2 and then do Benny's tests to check if you're on the money, and make any adjustments from there.
Assuming you're running Mach2 engine at 45,000 That would give you a max of 59 IPM for that axis alone. If another axis was moving you'd require the step pulses to be more frequent than 45,000 a second. As Benny suggests, you may need to use the step multiplier on your drivers or go less than 27:1 reduction.
Regards Terry.....