Don’t buy those Ali motors. Try this:
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It does use the IMU for that. The footswitch controls whether the board is on or off. Otherwise, when you stepped off, it would shoot at top speed in one direction or another until it crashed.
Yes, exactly.
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there are many different diy projects
https://youtube.com/playlist?list=PLiYCRuOFm1MNj5a5LCCYhqoHpRu8Sc1Fx&si=LF5RwsauU4BC-S84
https://youtu.be/0shWuGG8B4I?feature=shared
You can see mine here in this thread. OneWheel uses highly complex algorithms to maintain a central position under various conditions. this is a very interesting topic.
https://forum.esk8.news/t/yet-another-hoverboard-to-onewheel-project/60979/32
https://forum.esk8.news/t/diy-onewheel-hoverboard/18862
https://github.com/EFeru/hoverboard-firmware-hack-FOC
https://t.me/joinchat/BHWO_RKu2LT5ZxEkvUB8uw
here’s everything I use 
I’m wondering if it’s difficult to adapt the firmware created by this OneWheel community for FOCKING?
I think it’s a funwheel community. 100% absolutely not endorsed by Future Motion.
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Are you thinking this one could be ready for release?
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I would try separate those battery terminals abit more, Might just be the pictures but they look too close for comfort. They seem to be in the middle of the current carrying polygon tho, which is good.
Whats you’re isolation and creepage distance?
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I’m testing it at the moment. It needs a few pull down resistors.
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The clearance is 0.4 mm. That will do for 75V, or?
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Awesome… Pre-release?
So the name is back to F.O.C.King, and the pull down resistors are added, and all stuff uploaded to Github. (haven’t settled on the name - ESC-IMU or FOC-king? What do you think?)
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“12 Mosfets - each with a gate driver” - that is really stupid. Obviously, I meant that each mosfet has its own gate resistor.
@jens_overby Congratulations! I just want to say - you are the best! 
I like “FOC KING” And if it’s not difficult, please make instructions - ordering JLCPCB, boom files, etc., assembly, flashing firmware into boards, or maybe a video tutorial. Thank you!
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No, I don’t think that’s enough for exposed stuff. But it depends on what’s being discussed and the operating altitude of the device. Find a copy of the electrical conductor spacing (clearance) table for IPC-2221B.
Something else to consider…
Have you taken the diameter of different screw heads and washers into account with those close battery connections? What about lugs that rotate a bit?
You have the anti-compression vias in the copper around the connection holes so I assumed that you’re supporting the use of screw-mounted lugs? This could be a problem as larger diameter washers might be used and lugs can rotate.
Along with the sliding around that the screw can do (unless you have a very tight clearance fit in the pcb) this will probably lead to a short-circuit at those terminals.
If you’re only supporting soldered connections I would also recommend spacing them out since many people really pile on the solder and its surface tension could cause the solder to bulge out past the edge of the pcb copper.
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I just grabbed the latest from GitHub - nordstream3/FOC and couldn’t find the BOM. Am I on the right repository? Is it buried in the KiCad files? Thanks!
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I will make complete instructions this week - and probably in the same run do something about those battery terminals. It’s simply more clearance for those large planes with solder.
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So, if I understand it correctly, the clearance for 75V uncoated areas is 0.6 mm. So I will update that. Thank you Mooch and Elodin.
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Even a chimpanzee can write Shakespeare if given enough time.
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