Re:Engineering 101

[Chris Kantarjiev <cak@dimebank.com>]

> >   What I need to figure out is how to make a 90degree turn and turn a shaft
> > with some gears.  I have a 1/2" shaft coming out of a I-beam that goes into
> > a frame about 4 inches, it needs to turn a threaded rod that is at
> > 90degrees to that shaft.

Bevel gears would work, but you might also be thinking of a worm
to turn a straight gear.

http://auto.howstuffworks.com/gear5.htm

http://www.atmsite.org/contrib/JSAPP/wormgear/wormgear.html