Gallery, Projects and General > The Design Shop

Magnetic table or magnetic base kind of thing?

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PekkaNF:
That is some inspiration. Thank you.

 I been having a flu and had time to do some internet loitering. Haven't got far.

There seems be two options: Mechanically or electrically route the flux.

Dial indicator magnetic mount seems to use very simple method.
https://www.quora.com/Is-there-any-simple-low-energy-way-to-make-a-permanent-magnet-able-to-turn-on-and-off-similar-to-an-electromagnet

Magnetic table seems to work by alligning the magnet block to soft iron poles. Not sure about the very detals. How much air cap is alloved, or does the mechanism wedges parts to very close contact?

And then there is an electrical way.
https://en.wikipedia.org/wiki/Electropermanent_magnet


Some sort of stuff seems easy in priciple, many details to do it efficiently.

Pekka

shipto:
Your welcome nice find with the magnetic base page it looks really simple just a iron-aluminium-iron sandwich bored out to suit your magnet. Just looked on ebay and a suitable magnet was £9 ish + postage.

WeldingRod:
Buy a magnetic door lock!  Cheap, but not very fine pitch.  I was impressed with the holding power of the two I tried.

Sent from my SAMSUNG-SM-G891A using Tapatalk

efrench:
Here's one for you.

PekkaNF:
Thak you

I got some industrial round solenoids and they seem to work fine.

Pekka

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