RE: [CAD_CAM_EDM_DRO] pulley ratios for timing belts

Give a G320 1 step and it will move one 4X quadrature count (meaning that a
200 line encoder takes 800 steps to get one revolution).

Tim
[Denver, CO]

> -----Original Message-----
> > 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
>
>
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