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From: ForthNet@willett.pgh.pa.us (ForthNet articles from GEnie)
Newsgroups: comp.lang.forth
Subject: Using FORTH for machine control
Message-ID: <2059.UUL1.3#5129@willett.pgh.pa.us>
Date: 7 Dec 90 02:11:36 GMT
Organization: String, Scotch tape, and Paperclips.  (in Pgh, PA)
Lines: 42


 Date: 12-03-90 (07:24)              Number: 376 of 380 (Echo)
   To: ALL                           Refer#: NONE
 From: CARL BAXTER                     Read: (N/A)
 Subj: STEPPER MOTOR CONTROLLERS     Status: PUBLIC MESSAGE
 Conf: FORTH (58)                 Read Type: GENERAL (+)

 I would like to find a relatively inexpensive general purpose
 stepper motor controller and driver system.  I would like to
 be able to control 2 or 3 of these from a Vesta SBC88A, programming
 in Forth.  Any suggestions?

 NET/Mail : RCFB Golden, CO (303) 278-0364 VESTA & Denver FIG for Forth!
 <<<>>>

 Date: 12-04-90 (13:21)              Number: 377 of 380 (Echo)
   To: CARL BAXTER                   Refer#: 2097
 From: JACK WOEHR                      Read: NO
 Subj: STEPPER MOTOR CONTROLLERS     Status: PUBLIC MESSAGE
 Conf: FORTH (58)                 Read Type: GENERAL (+)

 -> I would like to find a relatively inexpensive general purpose
 -> stepper motor controller and driver system.  I would like to
 -> be able to control 2 or 3 of these from a Vesta SBC88A, programming
 -> in Forth.  Any suggestions?

 We did a dual stepper motor controller project about a year ago for
 the MICRO88 on a 3"x5" PWB.  An article was written for Embedded
 Systems Programming and the code is in the file STEPPER.ARC here
 on the RCFB.  The stepper board PWB we designed to control 2
 stepper motors (20 V, 1.5 A max) by loading the speed and the
 number of steps into registers on the stepper card - the card does
 the rest.  The design was illustrative of the tradeoffs between
 hardware and software, cost and performance.  The board costs about
 $50 (depending on options) in quantities of 100.  If you have
 questions, call Jack Woehr or Steven Sarns.

 NET/Mail : RCFB Golden, CO (303) 278-0364 VESTA & Denver FIG for Forth!
 <<<>>>
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