home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!ulowell!m2c!bu.edu!decwrl!adobe!epperson
- From: epperson@adobe.com (Mark Epperson)
- Newsgroups: comp.robotics
- Subject: Re: Crazy about legs
- Message-ID: <1993Jan27.190233.10042@adobe.com>
- Date: 27 Jan 93 19:02:33 GMT
- References: <1993Jan27.043305.7387@sbcs.sunysb.edu>
- Sender: usenet@adobe.com (USENET NEWS)
- Organization: Adobe Systems Incorporated
- Lines: 16
-
- In article <1993Jan27.043305.7387@sbcs.sunysb.edu> shane@cs.sunysb.edu (Shane Bouslough) writes:
- >I've been thinking a lot about legs recently (don't we all? :-).
- >If you're going to do a nice leg, say Brooksian, it seems like
- >you'd need about one miniboard per. If you use 6 legs on your
- >beastie, that's quite a few miniboards. Is that a good way to go?
- >Or is something a bit more powerful a better idea?
-
- I have been looking at this same problem (I have been designing a 6 legged
- walking robot) and have come to the conclusion that the simplest/least expensive
- solution is to use one of the dedicated stepper-motor controller chips. At
- about $10 a pop + $15 for a stepper motor, it will cost me only $75 per leg
- (excluding the mechanicals). Further, the each motor can be controlled by
- 2 bits (step and direction) thus allowing all 18 motors to be controlled by only
- 36 TTL outputs.
-
- Mark Epperson
-