Subject:
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Re: Cybermaster Sensors
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 30 Nov 1998 13:25:53 GMT
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Original-From:
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stephen p spackman <stephen@=Spamcake=acm.org>
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Viewed:
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2675 times
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CyberUser wrote:
> In message <4.1.19981128213514.00961de0@mail.telepac.pt>, Laurentino
> Martins <lau@mail.telepac.pt> writes
> > In the future, I'm going to put the 3rd. touch sensor in a bumper in the back
> > of
> > the unit since it might impact on some object when reversing and I would never
> > know.
> > I haven't done that already because I'm a bit out of ideas how to make flexible
> > a bumper for the whole rear (the CyberMaster is my only LEGO). Any ideas?
Thinking ahead, and also if I recall because the set had the idler gear
in it, I bought several of the rubber-skirted hovercraft some years ago.
It isn't flexible but it's soft and it looks cool. And implausibly
enough it's real LEGO.
Haven't tried it for a robot bumper yet, but I built some nice grippers
for my experimental board game playing hand.... (all rectilinear: 3 axis
arm, gripper open/close, light sensor in the "palm" of the hand, touch
switch for hand-hits-surface verticaly, rotation sensors on the track
and the extensor. Never did work out how to get feedback on the hand
position though, since both space and weight are at a premium at the
free end of the arm).
That's also an important part for those applications where going fast is
too important to be able to afford a control system, like the patented
Cat Terrifier.
stephen
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Message has 1 Reply:
 | | RE: Cybermaster Sensors
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| (...) The trick with bumpers is to mount them on the long end of a lever. Mount the touch sensor so that the short end short end presses it in when the bumper is not touching anything. A rubber band pulls the short end against the touch sensor, (...) (26 years ago, 30-Nov-98, to lugnet.robotics)
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Message is in Reply To:
| | Cybermaster Sensors
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| In message <4.1.19981128213514....lepac.pt>, Laurentino Martins <lau@mail.telepac.pt> writes (...) In the book "Mobile Robots" by A.M.Flynn it suggests three bump sensors which are activated by circular plastic skirt made out of acrylic plastic. It (...) (26 years ago, 30-Nov-98, to lugnet.robotics)
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