The deepness is 12mm for the battery and 8mm for the VESCs. The board is 16mm and still just has a little bit of flex. The battery is made do have flex.
About the batteries I don’t know. Last ride I reached 12,3 km and filled in 4300mAh. Could be a greater distance but still fine for me.
About Jacob’s hubs I’m really satiesfied. They run quiet and smooth and have a lot of torque. I would like to try them in FOC mode, but I’m afraid to blow the VESCs.
Because of known problems I did some modifications:
These are 3mm metal pins from Bearings instead of worm screws.
I’d like to give 90mm wheels a try. I think the ride would be more comfortable on rough roads. I will try it with Trampa Stickies 90mm 76a but they are not available now.
It’s not ready yet. Just took the second wheel/rotor out of the oven. I glued the urethane on the rotor with epoxy with 70°C about 45min. Btw. I didn’t use trampa stickies, cause they were not available for a long time, so I ordered flywheel clones from the EU GB, but this is another long story. I liked to have the wheels 56mm wide (front and motor), so I had to use 6 wheels to get 4 out of them. The diameter of the urethane on the motor is 91mm. It was pretty difficult to work on the wheels, because the urethane is so soft. Soon I will post some more informations and pictures.
Great timing on that development , let us know for how long it stays stuck to the metal. Feel free to checkout the thread I started on this and the potential buyers they might prefer your option better.
I’m confident that the gluing will hold, if not I will tell you. If anybody wants to make their wheels like I did, I will give advices, but for the most people your option would be the easier way.
You did a professional job, I just tried so many epoxies I lost hope in all of them. I ride a lot and even with the .4mm sleeve and epoxy I got issues between 500 and 1000 miles or riding.
I hope this new design idea passes the 1,000 mile mark. So far the motors have been remarkable they are still tight, but they look like they came back from a war zone.
Update: Now I’m using FOC. For this reason I built in hall sensors and use Focboxes. I also changed to @ackmaniacs fw 3.1. and use his android app. Everthing works perfect and FOC is a dream.