Electro Permanent Alnico Magnet Gripper

[MagnaProp]

Saw this and thought it might be useful to someone in some way. It's not mine but they have the files available for free and a product for sale.

"...The main change is that we only use Alnico magnets now and instead of magnetizing those fully in either direction go from full magnetization to completely demagnetize..."

Sounds like it magnetizes and demagnetizes Alnico magnets allowing UAV's to pick stuff up so it's small and strong. Looks rather small for what is can lift so I don't really understand how it works. Sounds like it only uses power for a short second to either magnetize the Alnico magnet or demagnetize it. Not sure if this could be used in an OverUnity device or not so I thought I would pass it along.

http://diydrones.com/profiles/blogs/electro-permanent-magnet-cargo-gripper-got-a-lot-better

[telecom]

I wonder how much energy it takes to magnetize/demagnetize.

[MagnaProp]

The video says he is using a 5 volt power supply. Not sure what the amps are. Can't imagine it's much since it's designed to go on small flying UAV's so it has to be light. Definitely not using large car batteries or something like that.

The video is a little misleading since it looks like the huge chunk of metal he picks up is the Alnico material but it isn't. He posted some more images showing how small the magnets are that appear to be integrated into the device.

[Kator01]

Hello,

all the data are here:

http://nicadrone.com/index.php?id_product=59&controller=product


Kator01

[kEhYo77]

Here is a relevant video
Improved Flynn Gap motor hybrid by Robert Murray-Smith

and a patent