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Building a milling machine

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NormanV:
It's a neodymium magnet. I made sure that I had it the right way round. I'll try a bigger one tomorrow.

John Hill:
If you have another the same just stick it on top of that one..

NormanV:
That's what I was planning to do, if it works then I will glue it to ensure that it doesn't move.

awemawson:
Norman,

All the proximity sensors that I've used (and that's quite a few!) don't need a magnet to operate. The sensor senses the iron presumably using it's own magnetic field. So for instance you can bring one up close to the teeth of a gear wheel and sense each tooth.

Try removing your magnet and sensing the hole where it was - I suspect the strong magnet that you are using is stopping the proximity sensor working.

Arbalist:
Good info Andrew.  :thumbup:

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