Re: [CAD_CAM_EDM_DRO] pulley ratios for timing belts

> I am running a 200(I think, it may be a 250) line encoder on a 3:1

reduction

> with a 5 tpi screw (assuming it is a 200 line this gives 12,000 steps per
> inch) at 135 ipm which should be 27 KHz.
>

I must be doing my math funny because I get:
200cpr * 3 = 600 cpr as seen on the lead screw.
600 * 5 (is tpi equievelent to revs per inch? i thought so) = 3000 steps per
inch. (12,000 in quadrature). Ah, this could be my confusion, what does 1
step mean to the gecko?

thanks,
--chris