RE: [CAD_CAM_EDM_DRO] Stepper control w/o a computer?????

It can be as simple as inputting pulses from a signal generator onto the
step line or using a 555 timer chip or programming a pic / basic stamp
to read a pot and put out a pulse stream.

Hope this helps

David

-----Original Message-----
From: fozzyber <jerry@...> [mailto:jerry@...]
Sent: Thursday, January 02, 2003 9:20 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Stepper control w/o a computer?????


Well I'm on my way to learning all this CNC stuff.
I would like to convert my Drill/Mill to CNC. I read as much as I can
on the subject. This group is great.
I would like to know is there a way to control stepper motors with
out useing a computer. ie a box that would send step/dir signals to
the motor? Waht I'm thinking is to get the steppers and build a power
feed setup first then add the computer control later.
That way I canget the bugs out of the mechs then move on to the
computer side. Does any one have any suggestions on stepper motor
size. I was thinking of stepper motor that have at least 125in/oz of
torqe. would this be enough of do I need to look at bigger?


thanks


Fozzyber



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