The floatwheel guy has actually been commenting on my YouTube video, interested to see if he goes anywhere with the belt idea. I’d say it sounds like he has a bit of spare time right now with the New Year going on, but otherwise, you’d think he’d be really quite busy. Seems to be making impressive progress!
I do get the concern about the belt slipping; it’s obviously a much bigger issue here than on an esk8. I don’t think people quite get how stiff/strong these belts are. It’s the same belt spec used by quarter midget race cars (dirt karts), htd8m belts are often used to power car superchargers (albeit at a 75mm width). It should be possible to engineer a system that will never slip for thousands of kms.
Looks like a 10mm htd5m belt, so I’m not surprised he switched it over to a chain drive. There’s also this example of a belt drive onewheel that didn’t work out so great.
Yeah if I could work out a tensioning/idler system and weld the wheel pulley to the axle or integrate a keyway to stop it slipping, the 5m might be ok, but I think my motor is too small/high kv regardless. I really just cbf after 4-something years of trying.
The floatwheel guy seems intent on using a 63mm motor, with a 5m belt. I’ll be curious to see how that works out. Be great if it did as you’d be able to get much higher reductions, but I still have my doubts.
This project started back in 2018, so I totally get the CBF factor. I’d box it all up from time to time and forget about it for a year. It’s the kind of thing that is meant to be fun, so if it’s not stop doing it, well that’s my thinking anyway. That Fungineers build will work out awesome!
This is such an awesome project… Have you considered using a 2 stage reduction via an additional jackshaft. You could use a 4:1 reduction using 1.5 mod gears. Losi has some really nice straight cut gears (pinions are 8mm). Then you could increase your kv closer to 200kv
So I see two ways forward; a much bigger motor with around the same kv, or a two-stage reduction with the same sized motor but higher kv. Gears make the most sense for the first stage, mainly due to packaging, but also two steel 1.5mod gears seem pretty solid. Also, torque on the first stage is much lower than second. Definitely thinking about it.
The bigger motor will be tough packaging wise (thinking 80mm to 107mm), I’ll need to raise the rear footpad (higher cg = bad on onewheels), and it’ll stick out the bottom even more. Will need new motor mounts. This bigger motor is a bit more exotic (single source/ $$$) than the 80100 which are everywhere. It’s also double the weight.
The two-stage reduction should be easier to package. Will need to design and machine a gearbox setup. More mechanically complex, but would probably still be lighter than the bigger motor solution. I think it’s the more logical solution.
Damn no kidding At first I was thinking you could make a weird stepped footpad and mostly stand close to the wheel.
Two stage reduction and ~63mm motors if it could work would appeal a lot more to the FM riders looks wise. I think these funky ow designs will be a fun thing for people to mess around with when getting into vesc boards.
There’s nothing in this video that isn’t in this thread already, but hey, if you feel like wasting 30 minutes of your life listening to me rant on about OneWheels. . .
Respect to those YouTubers that put out quality content. There’s a whole lot of effort that gets put in that you just don’t notice until you try to put together something yourself
This cool project inspired me to try to make one my self. I made some 3d drawings but u cant decide what motor to get preferably something with hall sensors and dimensions of roughly 70x200mm. does someone have recommendations?
