Skateboard in a Day
This was a particularly quick project but it's been something I've been meaning to do for a while.My day began like any other; I woke up, went over to MITERS and started to work on different Battlebots. This all changed when Mason showed up...He took all the robots I was working on, threw them into a box, and told me it was time to build an electric skateboard. We often go through different phases where a bunch of MITERS/Putz people will build similar vehicles and form a "gang" (the most recent being Scootah Gang). Apparently it was time for skateboards! Conveniently, an electric skateboard truck is something I can easily bring back and forth with me to my home in California for extra shenanigans over the summer.My build was going to be as easy to execute as possible.First I began by CNCing a clamping hub 12T HTD pulley.
It used a clamping hub because I was concerned with using a set screw with all the vibration, and because it keeps the pulley nice and concentric.I then 3d printed a pulley for my wheel that mated with the conical surface.
The resulting pulleys gave me a ratio of around 1.7:1, which with my motor and wheel geared the skateboard for around 25mph.I took a truck, clamped it in the vice, and milled 4 flats on it, leaving me a nice rectangle to clamp onto
A few minutes of waterjetting later and
Voila! Easiest possible electric skateboard.When I got back to California, one of the first things I did with my friends is buy the cheapest board from Walmart ($15), duct tape the electronics to it and zip off. Still works like a charm! Not bad for a couple hours and spare MITERS parts