Re: gecko servo drive +5tpi screw?

--- In CAD_CAM_EDM_DRO@egroups.com, "Tim Goldstein" <timg@k...> wrote:

>
> the task. Even with a 250 line encoder and a 2:1 reduction on a 5

tpi screw

> you get a calculated resolution of .0001. Probably better than the

machine

> is up to.
>
> Tim
> [Denver, CO]
> thank's for the input Tim.What I want is to direct drive the

screws,to eliminate other things like backlash or elastic deformation
and get it simple as possible.
Let's see If I've got it right:500 lines encoder X 4=2000 per rev.
X 5tpi= 10000 steps/" right? if i want to move it at 60 ipm(1"/sec.)
the computer will need to send 10000 steps/sec.X 3 axis= 30000
steps/sec. Would a 486 dx50 or a p200 be up to it?
I'm running half step with cmtronics controller+ desknc on a 486
dx50 and I can get up to 200ipm on a single axis.Have not cut
anything yet,as I'm not donne with the upgrade yet.(just testing xyz)
thank's again.
Fogassa.