Subject:
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Inchworm
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 1 Mar 1999 21:38:14 GMT
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Reply-To:
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BRYAN.BEATTY@AUTODESK.nomorespamCOM
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Viewed:
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958 times
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Pointless Invention Of The Week:
I've put together a Lego "inchworm" using the MindStorms RIS and a few
more pieces. Utterly silly, good for a chuckle or two. Pictures at:
http://www.freenet.tlh.fl.us/~beatty/robots/inchworm_extended.jpg
http://www.freenet.tlh.fl.us/~beatty/robots/inchworm_retracted.jpg
http://www.freenet.tlh.fl.us/~beatty/robots/inchworm_side.jpg
...It has no sensors, and it uses the RCX as nothing but a dumb battery
box. The "program" is simply "turn on the motors and leave them
running."
The body of the inchworm is designed to flex and unflex itself,
alternating between a shape like a "C" and a shape like a "(". The
motors are used only for flexing and stretching the body; the wheels are
unmotorized and freewheeling, having only a ratchet to keep them from
turning the wrong direction.
As the contraption flexes and stretches, it moves itself along slowly,
inchworm-fashion. It's not about to win any awards for elegant design
(I cobbled it together while watching a movie video), but it's fun to
watch it humping along.
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Message has 3 Replies:
 | | Re: Inchworm
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| Just when you think you have seen it all! This is really clever. -- Bob Fay The Shop (URL) Beatty wrote in message <36DB08C6.4CBE15B8@a...sk.com>... (...) (25 years ago, 2-Mar-99, to lugnet.robotics)
| | | Re: Inchworm
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| This is what I thought was done in the Duplo inchworm, but later I heard it wasn't. Eric (25 years ago, 2-Mar-99, to lugnet.robotics)
| | | rotation sensor
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| Where do you get a rotation sensor from (other than homebrew)? -Kerry -- Did you check the web site first?: (URL) (25 years ago, 3-Mar-99, to lugnet.robotics)
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