He said that he will start off with Kepler's friction drive, then latter on he will experiment with using a new drone pancake motor to make his own ... Mid-Drive .
Mechhead, there will be as much interest in your drone pancake motor mid drive as Kepler's friction drive. We are very much in Need of a Simple/Lightweight Mid-Drive System !
Example : For a light weight Road Bike setup , Kepler's new Friction Drive looks like the best that is being/will be , offered on the market right now .
( For those of us riding on Dry Pavement Roads )
For Mountain Biking, especially for going up 1-3k feet in Elevation ( 300-100 Meters ) or more on each ride , with Knobby Tires, crossing streams, etc. A light weight Mid-Drive would be Best.
I have been waiting for someone to design/make a light weight RC motor , Mid -Drive system. I have known it is possible for a while now and have been watching and researching , but China is not doing it , nor do they seem to have an interest in doing modern / innovative DIY Kits.
So Mechhead, know that many of would like one as soon as possible ! Please PM me so I can keep informed.
mechhead wrote: i plan to build a mid drive device using one of these new drone pancake motors that have 48 poles and a large diameter that should give excellent low rpm torque needing less stages of reduction.
large diameter motors are not needed with keplers brackets (or possible). A 50mm motor works perfect for me. What do you mean by "stages of reduction", this is a direct drive setup.