Okay, after some… relatively more than just some reading and a bit of doodling I got to a point where I have parameters. I’m designing for range not speed. Batteries: will be LiPo 10s(depending on cash)p. Motor: 225KV (will see what I can find but this is based on the theories of Vedder who wrote and did some awesome stuff on this forum) Motor Mount: Got some CAD and drawings of the MBS trucks and Rockstar hubs still busy with designing but this is least of the problems. Drive Train: Now this is where it gets interesting… I have chosen a belt drive system. I initially desired and designed for a maximum speed of 45km/h, which requires a gear ratio of 1:7.2. but with a 5m or 3m belt the slave wheel will be too big, resulting in poor ground clearance or to be totally unpractical. The hub of the Rockstars has an outside diameter of 105mm I do not want to exceed this by more than 10mm on the radius. So gear ratio is now 6.5 with GT3 belt, thus pulleys 20T:130T. Also Dont want to go smaller on the drive pulley to extend belt life, max speed is now around 50km/h.
Tomorrow I’ll see what type of belt I can source in South Africa as so far I cannot find a GT belt but have sort off found a local supplier who can supply me with a HTD 3M belt which looks okay. Would have liked to use a 5M belt the pulleys seem to be too big for the board or I’ll have to change the gear ratio.
What do you guys think? Does this make sense other ideas maybe?