Electric Longboard Conversion

thingiverse

Alright, I was bored the other day and decided to turn my longboard into an electric board because I'm too lazy to pump all the time. A couple of hours later, here's what I have. The designs are pretty crude but they work. Parts: Longboard -Yoacher 41 inch drop deck board (The one I own) Brushless motor -Hobbyking 5055 400kv motor Speed controller -Turnigy 85A Belt -55 teeth 110XL synchronous belt Pinion 1.5mm Pitch 10 Teeth 6mm Bore Motor Part Timing Belt Pulley Sprocket R/C car radio and receiver -quanum 3ch Your choice of battery (3s runs perfect, I'd say around 10-15 mph 6s for dangerous speeds) 4000mah+ 20c+ That's pretty much it. I printed the parts at 0.2mm layers at 100% infill on my Prusa i3. Epoxy the wheel pulley onto the wheel and it's good. Make sure it's centered to avoid vibrations. Bracket is friction fit, so hammer it in there well. Works well and cheap. Oh yeah, you're going to need some extra spacers for the wheel if you can't hammer the bracket in enough. 1-2mm distance from the wheel gear is good. I have three spacers or washers on my wheel. Battery tray is a friction fit for the battery as well for a Multistar 5200mah pack, 23x50x145mm This works for me, but do it at your own risk. Update 6/9/16 I got a new rc car esc (120A FVT) which has better acceleration and braking curve. It's so much better! I drilled and added a grub screw to the motor mount to axle to prevent sliding into the wheel gear under hard vibrations. I printed parts in a new color and just got red wheels. Runs like a dream! Update 6/14/16 Phew, I found an awesome upload by droftarts (Parametric pulley - lots of tooth profiles). (Awesome openscad file) I used his scad file to create a wheel gear that fits the belt perfectly. 37 teeth. Less area to epoxy onto the wheel but it's enough. Wait at least 24 hours for it to cure.