retrolefty:
Jakobud:
Yeah but it's not clear where to buy them. All the ebay results are "Electro-craft" permanent magnet motors.... which are not the same thing as an Electro Permanent Magnet.Try: electromagnet for sale | eBay
I see many such magnets listed. One thing on considering/choosing such a magnet is the 'holding strength' of such a magnet and that is how good a metal to metal matching surface the magnet makes with whatever you are trying to attach to. Such strength ratings assume a perfect 100% surface contact
An electromagnet solenoid lifting magnet is not the same thing as an electro permanent magnet. The ones you link to in the ebay listings are magnet solenoids that you apply a current to in order for it to enable/disable magnetization.