Alt-BEAM Archive
Message #03669
To: Wouter Brok w.j.m.brok@stud.tue.nl
From: Les Davis upnrunin@home.com
Date: Mon, 24 May 1999 11:50:50 -0700
Subject: [alt-beam] Re: Inertial Rotation
Wouter, the "ring" device you are considering is called a Gimbal and can be
found in either a ships compass or an airplanes artificial horizon device. If
you have access to a local airport sometimes a machine shop will have a device
you could get a gimbal from.
Les Davis
Wouter Brok wrote:
> Hello List,
>
> Just thought I let you know that I'm thinking about building a useless
> (read 'decorational') thing to illustrate the concept of inertial rotation
> introduced a couple of weeks back. Then I did draw a box hanging from the
> ceiling with a wire, now I think I'm going to make it a two-degrees of
> freedom 'satillite' (also with solarpannels sticking out as you see in most
> satillite pictures). To give it the two degrees of freedom I will put it in
> the centre of a ring. In the ring the thing can rotate around an axis lying
> in the plane of the ring and the ring itself can rotate around an axis
> perpendicular to the other axis, but also in the plane of the ring. So the
> thing itself is free to rotate in two dimensions, like a satillite and can
> thus point its solar-cells to the ligthsource.
>
> Unfortunately I don't have much time to build stuff neatly (that's why very
> few robots I build to experiment with certain concepts are not disassembled
> again), but maybe I can find the time inbetween the building of the
> two-motor solar-powered robot, which is intended to be made so nicely that
> I can keep it. (It's cool if after years of building robots you actually
> have a couple which stay to show to friends, so I'm working on those)
>
> Wouter Brok
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