So this is my first post here, but not my first build. My previous build was a longboard I bought somewhere for cheap and the goal was to design/build/print/solder almost everything by myself. So the motor mount, the battery case, the gears, the VESC and the battery were made by hand. This was really nice to get in touch with e-boarding, but after a while i was dissatisfied with the board since it was build poorly (good enough to drive, but not maintainable) and the only terrain that was usable was fresh asphalt.
Hence the motivation to start building a mountainboard. But this time… build it properly, make it maintainable and as always, try and keep the cost low. The base for this board is the MBS Colt 90 deck combined with Flipsky trucks, motormounts and two 6354 140kv motors. As can be seen here, all put together next to the old build. The bindings have yet to arrive.
For the VESC modules, I can solder them myself in office. It was difficult to get my hands on some of the chips (global shortage and what not), but in the end they are soldered and tested. I’m still waiting on the internal NTC’s to arrive so they are note completely done yet.
Powering the complete build are 12 Headway 38120HP 8Ah LiFePO4 Cells. They can deliver 120A continuous or 240A in a burst for 30 seconds. They are big and bulky, so the range to size ratio won’t be that good. But i am curious to the behavior of these cells in general, so in the build they go.
The BMS for the battery is a Daly 12s 100A bought from the one and only Aliexpress. It was delivered last week, but I’m waiting on the crimp contacts for the balancing wires so the battery testing has to wait too.
The batteries and BMS are going to be placed inside a simple box with transparent lid. This will catch the eye and allows me to place a current sensor and temperature sensor inside the box that i can check while driving.
The last parts will probably be delivered in the coming week, so stay tuned!