Re: [CAD_CAM_EDM_DRO] Re: Response - The Saga

Yes, it can be done. The real time clock can be programmed to output 8192
interrupts / second. A VXD can hook the interrupt and use it to pulse once /
interrupt.
This can only be done at interrupt level, so it needs to be done in a
VXD.

Art

----- Original Message -----
From: "Matt Shaver" <mshaver@...>
To: <CAD_CAM_EDM_DRO@egroups.com>
Sent: Thursday, October 12, 2000 8:14 PM
Subject: Re: [CAD_CAM_EDM_DRO] Re: Response - The Saga


> > From: Art Fenerty <fenerty@...>
> > I do have a question though, how many pulses/second are actually
required
> > for most people. A VXD is not very
> > hard to write for up to 8192 pulses per second, but get more difficult
at
> > 40000 or so. I use about 4000
> > or so pulses per second on my machine, but how many pulses does the
average
> > user require. If I'm going to do this, I might as well make it for most
> > users.
>
> Let's say I had a machine with 5tpi screws, 2:1 reduction from motor to
> screw, 200 step/rev motors and I wanted a basic unit of movement of
.00025"
> (I'm half stepping the motor) with a max feed rate of 120"/min. That works
> out to 8kHz at 120"/min. I'd be happy with that for my stepper
applications.
> I'd like the following output step rates:
>
> 8000 Hz
> 7999 Hz
> 7998 Hz
> <...>
> 3 Hz
> 2 Hz
> 1 Hz
> .9 Hz
> etc.
>
> Can this be done without locking up the GUI? If so, how?
>
> Matt
>
>
>
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