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Small electromagnet lock

Posted: 26 Feb 2016, 01:27
by Inventingforfun
Seen in other threads that I'm not the only one who finds ice releases to be messy.

So, to get rid of those but still be able to connect, hogtie, handcuffs etc., I got a pair of electric door holders,
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Some tweaking and I got an electric alternativ for ice locks.
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These are 24V version, low current, 45mA, no heat and a small power supply is enough but they hold 50kg each.
Controlled via a timer on the wall socket or from my Arduino box that will control some other stuff soon ...

Re: Electric "ice release"

Posted: 26 Feb 2016, 17:01
by KinkInSpace
Why do you call it an "ice release" if there's no ice involved? Its just a "magnet release system" which is something that has been discussed before too.

That being said, good work on creating this. :)

Re: Electric "ice release"

Posted: 27 Feb 2016, 21:39
by Sir Cumference
As SL said: Yes, it is an electro magnet release.

The good thing about the ice release is, that it is extremely low tech, and unless the the temperature in the room drops to freezing, the ice will melt.

If your timer gets stuck, the power to the magnet will stay on, and it will "never" release.


Apart from that:
Nice magnets! Where did you get them and what did you pay for them?

Re: Small electromagnet lock

Posted: 01 Mar 2016, 20:27
by johns1234
Regarding the timers, I would chain two of them: mechanical and electronic one.
I found this a while back:
http://www.amazon.com/Digital-Innovatio ... B00565GU30

Re: Small electromagnet lock

Posted: 01 Mar 2016, 23:00
by Inventingforfun
Changed the subject and then of course could not reply as the thread needed approval so here's my reply ...

Dual timers will increase the safety, or even tripple if you don't trust your equipment.

Got these in local hardware store, about 30$ per set with magnet and plate. Seen these at aliexpress and other sites as well.

Easy to convert, the magnet part had a threaded hole in the back, just add an M8 ring screw and at the same time remove the brass safety pin in the middle that's there to ensure the the door releases from the magnet but it made locking difficult as some pressure was required to get the magnet to grip the plate, without you just need to get close to hear a metallic click :shock: