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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I was hoping that would be something he was going to do as part of his continuing due diligence when designing a product. 
No worries though, thanks!
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That’s for a new pcb. The distance might need to be enlarged if anything is expected to get on the board (dust, metal dust, lubricants, salts, etc.).
This is done using degrees of “pollution” to determine the multiplier for the clean-pcb distances. IPC-2221B covers this too.
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I would like the pos moved over to make 1mm. Not sure if that’s possible.
I feel like I want to torture ChatGP with this limitation & I know I’m not alone.
Basically we get skynet as a net result of ChatGP bullying.
Theoretically, probably, sure.
Soldering some cables in dimmed garage light?
I’d want me atleast 10mm between the solderpads 
I follow some ISO 62368-1 standard at work(part of UL2580/UL1973), its overkill for hobby level stuff tho.
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What are your thoughts regarding use of UL 2271, UL 2272, and UL 2849 for esk8-related packs and associated electronics? UL 2849 isn’t fully applicable but still has some good stuff in it to consider using.
I’ve been diving into UL 2271 lately, using it to guide esk8 electronics (battery related) development.
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I will fix this
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I’ve just started digging into UL as we’re expanding to the US market for our battery modules. Mostly nitpicking stuff that puts constraints on PCB design. So can’t give you much input sadly. I’ve noticed some of the older stuff getting phased out tho to be up to par with all the new regulatory demands that are beeing developed as li-ion market continues to grow, so navigating on what to comply with is getting increasingly difficult and is changing in a rather fast pace. developing for multiple markets is a nightmare atm 
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So I’m testing all the peripheral stuff. Can bus, NRF (trying to), RC Throttle, etc.
Just discovered that I need to do a swap of two traces to allow correct input capture of RC throttles. I guess it’s pretty important that RC throttles will work with the board.
Luckily it’s something I can do on the pcb I already have, with a hobby knife and a dab of solder.
Github does not have this important update yet!
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What is meant by “RC Throttle”. Is this the PPM or PWM input?