Subject:
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LEGO Electro-magnet
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 14 Apr 2001 21:35:48 GMT
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Original-From:
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James Matthews <generation5@btinternet.com*NoSpam*>
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Reply-To:
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<jmatthews@generation5.orgSPAMCAKE>
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Viewed:
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1096 times
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Hi there,
Being a *complete* dufus when it comes to things like electronics, I've no
idea how to start creating my own sensors, but I feel I have to start
somewhere.
I've thought about creating a LEGO Electromagnet (uses the motor connectors
to be turned on and off) so you can create robots that pick up things. Any
ideas how I might go about doing this?
Regards,
James.
- James Matthews
Generation5: http://www.generation5.org/
"...At the forefront of Artificial Intelligence..."
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Message has 3 Replies:
 | | Re: LEGO Electro-magnet
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| I have been thinking about this very thing recently. It's actually pretty simply. For the simplest version, all you need is a nail or screw (preferably with a lot of soft iron in it, otherwise it will tend to stay magnetized to some extent once the (...) (23 years ago, 15-Apr-01, to lugnet.robotics)
| | | Re: LEGO Electro-magnet
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| The easiest way to get an electormagnet is to hack a small 12 volt electric clutch or brake. These have a powerful electromagnet that still has good strength when run at 9 volts. Most of them will not overload the RCX. Edmund Scientific sells one, (...) (23 years ago, 16-Apr-01, to lugnet.robotics)
| | | Re: LEGO Electro-magnet
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| There is a description of a magnet actuator at Andreas Peter's site: (URL) (see Elect.Actuator) But two modifications IMHO are needed to this design : - Use heavier duty diodes than 1N4148 indicated in Andreas shematics. 1N4148 is rated 20mA and is (...) (23 years ago, 19-Apr-01, to lugnet.robotics)
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