Hi my name is Chris i am from australia and i am 15 and i am new to the forum, I am doing my first electric skateboard build and would like a little insight and some help. my parts: Motor: sk3 213 Kv esc hobbyking xcar 120a brushless esc battery: 2X turnigy 5000 25c lipo battery Transmitter: Gt2b trucks: caliber wheels 76 mm koston 83a ( i know koston the price was unbeatable tho) bearings: bones reds deck: BULLDOG LONG PIG (40" x 10.5") pulleys: steel 14 tooth HTD belt pulley, 3d printed (ABS) 36 tooth pulley and a HTD 9mm 300mm belt motor mount: Self made aluminium clamp bracket
I would like some feed back on 3D printed pulleys the following images are on i printed it seems very sturdy and rigid but in the long run I’m not so sure on how it will hold up
Also the wheels I bought are solid and don’t have holes like abec fly wheels. I was wondering the best technique for mounting the pulley to the wheel, I have a drill press at home and was wondering of drilling directly through the wheel like boosted boards do and putting bolts through the wheels.
For the motor mount i have been experimenting with motor mounting options, I will start to draw the bracket up and prototype with my 3d printer and ether get it made with a water jet or a cnc or even a plasma cutter. this is a quick bracket i knocked up with 1/4 inch aluminium in the end i will be using half inch aluminium.
for the motor pulley i orderd the wrong one with only a 6mm bore instead of my intended 8mm bore but i made up for this issue by counter sinking the 6mm hole to 8mm at the top and then lined it up with a 8mm bit and drilled it, i was surprised how centred it is perfect, i continued running the 8mm bit up and down in the hole to make it that 0.1mm bigger for the sk3 motor shaft. I need some advice on the mounting of the pulley i am intending on grinding a flat spot on the motor shaft i am not sure on what kind of screw to use to secure the pulley on the shaft any suggestions?