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> Ralph Hempel wrote in message <000201bf2ecd$b224e900$0500000a@pro150>...
> > I just caved and bought a couple of Throwbots (Granite and Ski) for
> > the kids. Now I'm jealous.
> >
> > The gearbox in Granite would be super for gantry robots. I think that
> > a two-plate built up beam with gear racks on it could be run through
> > the box. This would make a very compact mechanism for moving a device
> > along a rack if driven by a micro-motor.
Then Eric Brok wrote...
> That was my thought too. I built a sketchy 2-dimensional gantry, as proof of
> concept. Didn't work perfect but interesting for a change. (no pics).
I finally pried Granite out of little Owen's hands (I waited until he
fell asleep - it was easier) and found to my dismay that the two types
of gearboxes are ALMOST OK for gantry mechanisms. The Granite gearbox
only allows a rack mounted on a single plate - not very structural. The
worm gear box does not let the worm protrude far enough to mesh with the
rack - ARGGGHHH.
Those new parts are so COOL though. I'll have to hold them some more
to figure out if they can be useful for other things...
Cheers,
Ralph Hempel - P.Eng
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Check out pbFORTH for LEGO Mindstorms at:
<http://www.hempeldesigngroup.com/lego/pbFORTH>
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Reply to: rhempel at bmts dot com
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Message has 1 Reply:
Message is in Reply To:
 | | Re: Throwbot (Slizer) gearboxes
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| Ralph Hempel wrote in message <000201bf2ecd$b224e9...pro150>... (...) That was my thought too. I built a sketchy 2-dimensional gantry, as proof of concept. Didn't work perfect but interesting for a change. (no pics). Eric (25 years ago, 15-Nov-99, to lugnet.technic, lugnet.robotics)
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