Newsgroups: comp.robotics
Path: brunix!sgiblab!spool.mu.edu!howland.reston.ans.net!cs.utexas.edu!swrinde!elroy.jpl.nasa.gov!newncar!destroyer!nntp.cs.ubc.ca!alberta!fantom!crs-sys!nextedm!spl4!cuugnet!hrynkiwd
From: hrynkiwd@cuug.ab.ca (Dave Hrynkiw )
Subject: Re: Drills
Message-ID: <CKqn5G.KvM@cuug.ab.ca>
Date: Sat, 5 Feb 1994 06:24:51 GMT
References: <2ijh8s$pq8@handler.eng.sun.com>
Organization: Calgary UNIX User's Group
Lines: 36

In article <2ijh8s$pq8@handler.eng.sun.com>,
Chuck McManis <cmcmanis@pepper.Eng.Sun.COM> wrote:
>So I was putting up some drapes and once again amazed at the amount
>of torque you can get out of a cordless drill and it hit me, why not
>use this for a robot? There are a couple of really nice features with
>cordless drills, one they are already geared down to a reasonable RPM
>and two they have a chuck on the end of them for mounting your wheels! 
>I seem to recall Steve Ciarcia did this in BYTE once but couldn't find
>the reference. Does anyone else have any experience using these motors?
>How did it work out? What were the mechanicals involved? Electronics?
>Just how much current does one of these puppies draw anyway?
>
	Forget the cordless drills - go for the cordless screwdriver!
These little babies have the neatest planetary geardown system you've
ever seen.  Even have mounting holes for the gearbox & motor.  And
depending on the size of screwdriver you get, you can mount an R/C car
motor to it.  I've seen this done here in Calgary at an R/C truck pulling
contest.  Sucker had so much torque he was smoking the tires at the end
of his 80 ft run.  Also speaks volumes for the abuse the planetary gears
could take.

	No real electronics in mine (Black & Decker baby model).  Just a
simple chrg circuit, 3 position switch, and two nicads.  But that geardown
is just so *easy* to take out to use.  I'm just searching for a mate to this
one.  (SCAN GARAGE SALES!!!)

	Post any other info you dig up, ok?  Lots of us Sumo-roboticists would
like to hear more!

	-Dave

-- 
Um, no - that's H,R,Y,N,K,I,W. No, not      \ hrynkiwd@cuug.ab.ca
K,I,U,U, K,I,_W_.  Yes, that's right.       \ Calgary, Alberta, Canada
Yes, I know it looks like "HOCKYRINK."      \ Home of the Western Canadian
Yup, only 2 vowels. Pronounciation? "SMITH" \ Robot Games - APRIL 9 1994 
