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What the Diff...
Hi Payaso,
The Diff I made has 3 x 1/16th in. steel balls cut into the drive gear (convenient they have 6 holes already for centering: they just need widening for the balls). The drive gear is free on the shaft, with a .03" x .25" gap into the shaft side for the .22 dia. x .025" steel disk that's soldered to the shaft.
The wheel side has a .25" dia x .30" rare earth magnet with a .05" centered hole in it so the .047 drive shaft rotates freely within it. This magnet is cut into the wheel and the steel plate is in the gear so this mod is almost invisible. The magnet causes the tension between the plates. The whole unit clicks in just like a normal ZZ drive axel.
Shoulda patented this before sharing, but there it is.
Web cam on the blink.
How'd you modify your SE circuit board? I've sent mine to uA and I have some LiPo cells on the way (planning to single cell the 3.7V x 145).
Brett
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