Re: [CAD_CAM_EDM_DRO] Re: gecko servo drive +5tpi screw?
Posted by
bfp
on 2000-09-17 06:41:08 UTC
<snip>
for most stepper control software the PC calculates and combines
the step bits for all 3 axies into a byte in memory
and sends them all to the port at once as a one byte output operation
so the PC would have to send 10k bytes/sec to the port
to move just one or all three axies together at 60ipm
if the 486 is already doing 200 ipm for one axis it should be
able to do it for all three ,unless the extra math slows it down
but I dont think it should have that much effect on the top speed
would it ?
Brian
>if I want to move it at 60 ipm(1"/sec.)as I understand it (someone correct me if I'm wrong)
>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.
>
for most stepper control software the PC calculates and combines
the step bits for all 3 axies into a byte in memory
and sends them all to the port at once as a one byte output operation
so the PC would have to send 10k bytes/sec to the port
to move just one or all three axies together at 60ipm
if the 486 is already doing 200 ipm for one axis it should be
able to do it for all three ,unless the extra math slows it down
but I dont think it should have that much effect on the top speed
would it ?
Brian