Newsgroups: comp.robotics
Path: brunix!uunet!cs.utexas.edu!asuvax!ennews!mcdphx!schuch
From: schuch@phx.mcd.mot.com (John Schuch)
Subject: Re: Micro Motor Hints
Message-ID: <1993Jul17.125203.1402@phx.mcd.mot.com>
Keywords: Motors etc for small bots
Sender: news@phx.mcd.mot.com
Nntp-Posting-Host: bopper2.phx.mcd.mot.com
Organization: Motorola Computer Group, Tempe, Az.
References: <C9sr4x.F98@math.uwaterloo.ca> <2211viINN8si@uwm.edu> <1993Jul15.153306.7471@webo.dg.com>
Date: Sat, 17 Jul 1993 12:52:03 GMT
Lines: 20

In article <1993Jul15.153306.7471@webo.dg.com> pmalenfa@kitkat.webo.dg.com (Paul Malenfant) writes:
>In article <2211viINN8si@uwm.edu>, rick@ee.uwm.edu (Rick Miller - Crazed Newbie Roboticist!) writes:
>|> Anyway, I thought it would be nice to start a list of DOs-n-DON'Ts for small
>|> motor purchasing/handling/use to prevent overentheusiastic newbies like me
>
>Has anyone ever tried using a die/tap to put threads onto a shaft?
>I've never used one of these tools.  Do you need more clearance than
>the motor permits?  Is the shaft too hard to be cut?  Will the wheel
>be too crooked when it is screwed on?
>

Threading a small motor shaft is damn near impossible. The best/easiest solution
is to use something like a Dremel tool and grind a flat on the shaft. You then run 
a set screw through the collar of your wheel to this flat. This should hold very
well however severe vibrations can bake the set screw back out. I'd put a drop
of LocTite on the screw after tightening it.

John


