A project log for 2D actuator move micro robot in X/Y 2D space

Less than 10$ educational platform with micro magnetic robot (mBot), only 6 GPIO to move in unlimited X/Y 2D space

bobriciusbobricius 05/04/2018 at 13:103 Comments

Finally I found SRI INTERNATIONAL patent with description

My solution is little different, I am using another pattern for movements also my design is 3 phases uni-polar against they 4 phases bi-polar design. They design is very energy effective because they have levitating manipulators over
pyrolytic graphite.

I searching samples of pyrolytic graphite.sheets, but without success now.


Ed0 wrote 05/06/2018 at 15:15 point

The best source for pyrolytic graphite I have found is here.

You can split it to the thickness that you want.  I also tried reproducing the SRI setup but had trouble with the magnets.  I got 0.25mm thick "N52" magnets (5x5mm) but couldn't get them to levitate.  I still need to break them down to the size used in the paper and try again. 

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bobricius wrote 05/04/2018 at 13:24 point

Yes, I asked Panasonic for samples, but they can not help. SRI use 0,5mm thick foil. Panasonic have 0,1mm max.

OK. is time tonight solder mosfets and test automatic movements :) and next I need order 0.6mm pcb board, on 0.8mm board bottom traces have very weak movements.

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Ted Yapo wrote 05/04/2018 at 13:16 point

Sold as thermal interface sheets, but they may also have the desired magnetic properties

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