Hi!
My name is Andre and I just joined ES (although I'm following this forum for quite a while). I would like to share my friction drive e-bike build with you. I was inspired by Kepler's beautifully simple design and created my own version.
https://youtu.be/dclgHJkaDs4
I added a couple features to the design:
The stopper discs are slightly larger and and I added an intermediate threaded plate which allows individual stopper adjustments completely independent of the central screw -> I can take the motor off by only removing the central screw... without losing the stopper adjustments. Another advantage of the intermediate plate is that you can tighten the stopper screws as much as you want and it will never bind up the pivot. Also, all adjustment screws are easily accessible from one side.
I'm using a VESC in FOC mode. A bluetooth module in combination with the Metr app gives me an awesome cockpit and allows to set the assist levels from the phone. I also added an Arduino which I use to configure the controls/buttons...I'm still playing around with this. I also have magnets in the chainring and a hall sensor ...so true pedelec will be activated soon!
The bike is a Specialized Secteur Disc which I upgraded to Ultegra, fully hydraulic discs, and Stans wheels with 35mm tubeless tires. The whole build is 24lbs ready to go. Not bad considering it has discs, an AL frame, and pretty big tires.
My name is Andre and I just joined ES (although I'm following this forum for quite a while). I would like to share my friction drive e-bike build with you. I was inspired by Kepler's beautifully simple design and created my own version.
https://youtu.be/dclgHJkaDs4
I added a couple features to the design:
The stopper discs are slightly larger and and I added an intermediate threaded plate which allows individual stopper adjustments completely independent of the central screw -> I can take the motor off by only removing the central screw... without losing the stopper adjustments. Another advantage of the intermediate plate is that you can tighten the stopper screws as much as you want and it will never bind up the pivot. Also, all adjustment screws are easily accessible from one side.
I'm using a VESC in FOC mode. A bluetooth module in combination with the Metr app gives me an awesome cockpit and allows to set the assist levels from the phone. I also added an Arduino which I use to configure the controls/buttons...I'm still playing around with this. I also have magnets in the chainring and a hall sensor ...so true pedelec will be activated soon!
The bike is a Specialized Secteur Disc which I upgraded to Ultegra, fully hydraulic discs, and Stans wheels with 35mm tubeless tires. The whole build is 24lbs ready to go. Not bad considering it has discs, an AL frame, and pretty big tires.