Re: serious problem

[Ray Henry <rehenry-at-up.net>]

Hassan

Freqmod uses the same parallel port pinouts as steppermod.  I can't 
imagine why steppermod should skip pulses at random.  I can't remember 
having heard of this problem before.  It sounds to me like something in 
the install or the hardware or a mismatch in it.  

I think that I should send you a new disk or you could burn one from a 
download.  If you download be certain that you get the same checkusm that 
Henkka has on the download site.

Ray 


On Friday 04 October 2002 12:21 pm, you wrote:
> Hi Ray,
> the 20 ipm as i understood is the manual or the rapid movement of the
> axis, for testing the ballbar i used a feed rate of 10 ipm,
> which is kinda slow but i have to live with that (the ballbar can
> adjust the feed rate to what the machine is running).
> to answer your question ...yes the motors exhibits the missed steps at
> different feed rates.
> but when i hooked the computer output pulse pin  from one axis to an
> osciliscope i found out that the stall comes from the computer...it's
> not the
> problem of the motors..the motors are 470 oz-in, 1.8 deg/step, and half
> step.
> as for the computer it's a PII 470 MHz ..which is only  running the BDI
> 2.10.
> am not sure if i can switch to freqmod because the input to the
> controller Box (Drive Rack) is a pulse and direction for each axis.