Magnetic Gears (no replies)

I was sitting in the bus, thinking of gears for an extruder, however, I didn't come up with a usable solution, I did manage to design my own gear system with two gears that spin with nothing in between them but magnetic fields.

Hope you like it:
[youtu.be]

The advantage I was thinking of would be that the wheels don't have any kind of wear because they don't have teeth, the only thing wearing would be the bearings that the gears spin on. The weight of the magnets is a bit high and this would render quick extrusion and retraction useless. Also the grip isn't phenomenal, this has to do with 2 facts;
- The magnets are not strong enough and not close enough to eachother
- The magnets used in the small wheel are of the disc type, if they had been of the 'pin' type lik ein the big wheel, they would have a stronger directional magnetic field towards the longer sides

I have learned a bit from designing this (even though the Rhino drawing only took me about five minutes and the print worked correct at the first try) and am thinking of a series of applications in situations where there are two wheels that cannot touch eachother, for example, bridging motion through a window without making a hole in the window.

Besided this way of making a gear, I am going to make a second one that doesn't use the outer edge of a gear, but has one gear next to the other, and also partially above eachother, so the edges are positioned above eachother and are exerting more attraction between eachother. This method will however put more strain on the gears' axis'.

With a mind going a mile a minute, I'm curious to see what I can come up with next :)