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Subject: 
Re: Electro-magnets
Newsgroups: 
lugnet.robotics
Date: 
Wed, 12 Dec 2001 02:54:49 GMT
Viewed: 
1876 times
  
Another simple source is a 12 volt electro-magnetic clutch.  These are
available on the surplus market, with typical price around $5 US.

  - pete.


In lugnet.robotics, Rainer Balzerowski writes:
> IMHO is the easiest way to get strong electro-magnets to disassemble 6V relays.
> They include good electro-magnets.
> I did so and was able to hold a 500g hammer with two of them running at 6V.
> 
> I used relays from FINDER (Series 55 if i remember right), a swiss company
> that builds that stuff.
> For UK have a look at
> http://www.findernet.com/en/countries/uk/index.php
> 
> Rainer
> 
> In lugnet.robotics, Styxrocks@aol.com writes:
> > What is your plan for the electromagnets?  If you can not find them, they are
> > simple to make yourself out of fine insulated (varnished) copper wire.  You
> > will have to do a little bit of experimenting to get the streingth just
> > right.  Wrap the wire into a small coil of many turns.  The more turns you
> > have, the more streingth you will have.  A certain amount of turns is
> > required to prevent drawing excess current and burning out the wire and/or
> > power supply.
> > 
> > Jim
> > 
> > 
> > > I'm sorry if this is a bit off the subject-
> > > Does anyone know where you can get small electro-magnets in the UK?
> > > Nobody seems to sell them.
> > > I am thinking of making a robot with electromagnets.
> > > 
> > > BEN
> > > --
> > >            :-) BEN (-:



Message is in Reply To:
  Re: Electro-magnets
 
IMHO is the easiest way to get strong electro-magnets to disassemble 6V relays. They include good electro-magnets. I did so and was able to hold a 500g hammer with two of them running at 6V. I used relays from FINDER (Series 55 if i remember right), (...) (25 years ago, 11-Dec-01, to lugnet.robotics)

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