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DIY electromagnet

Posted by spielbass (My Page) on
Tue, Oct 16, 07 at 13:46

I'm trying to reproduce an electrical toy from my youth that my dad built. It's a spinning motor and one component was an electromagnet made of a thread spool wrapped with wire and connected to a 12v lantern battery. For the life of me, I can't seem to make a magnet that's strong enough. It has to be strong enough to attract a piece of metal from an inch and a half or so away. So, was this just a spool of wire or must there have been a bolt through the middle and how can I make it strong enough? Thanks for any hints.

Follow-Up Postings:

RE: DIY electromagnet

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Maybe grab your computer and search for
electromagnet science projects

RE: DIY electromagnet

Here's a simple electric motor...
I remember making one on a mouse trap.

Here is a link that might be useful:

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