Thanks! What I understand is that the cables should not be longer than 20cm when using the FOC. Something to do with the inductance and/or too small capacitors
This isn’t true. I can run FOC without any faults with much longer cables than 20cm. This is on version 4.12 with the extra capasitance on C18. I saw @elkick post awhile ago and could not replicate the same issues he was experiencing.
Sweet board looking board, looks like it is going to be a lot of fun!
You are right, after the C18 mod (I implemented that at the first week of Feb) the fault was gone. Still, I think the quality of wires and caps (!) matters when using long battery cables.
Thanks for the tip! I have the 4.10 versions so I have to think about should I try the FOC or not.
If you switch out the capacitor @ C18 to a 4.7uf 16v it will perform better.
Have to give it a try! Thanks
That looks great! Perfect fit with those containers. How did you mount them onto the board?
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Ikea microwave containers ? Noice !
Used normal screws, for now 
Yup! Just spray painted these http://m.ikea.com/fi/fi/catalog/products/art/70128585/ These even have a small cap to let the steam out
Went for the first ride. Started inside a ice hockey rink (minus the ice of course) in a case of a runaway. First tried the Nyko Kama but it felt unnatural (fell once because weird twitch!) and changed to GT2B with Badwolf. I think there is too much interferience and I ride goofy while holding the controller in the right hand, like @RunPlayBack.
After switching to GT2B and fine tuning the settings, this setup feels like snowboarding in a concrete butter 
And finally the Winter is turning to the Spring.
Mr. Bouncer sunbathing next to the melting Baltic Sea
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Great photo! Congrats on the build, I know it’s been a long time coming especially with the weather. 
I can’t seem to find it on the thread but what lipo config are you using and how do you monitor the voltage? Care to share your VESC settings as well? Thanks man
Congrats. How many amps can you pull from those batteries per motor?
It seems the space cells 15 amps per motor did not cut it for my dual carvons, and blew a vesc out on a 2+ mile long slight uphill. They really need as many amps as you can get them, which with the vesc, would be 50 per motor.
Thanks! I have 3x 4S nanotech 6000mah 25C. I have set the VESC voltage cut-off around 3,3V. I dont have any external display for the voltage.
I’ll post the VESC settings when I tune it next time
These are 25C so I could pull 75A per motor constantly put I have limited it to 60A just to be sure. But yeah, the acceleration is not that mind blowing but the top speed is.
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The speed is incredible. I was able to hit 30 mph constantly with plenty of room for more speed. Super smooth riding too. I am going to adventually do some research to see if its possible to sensor these motors. I think that wiuld make agood difference in acceleration.
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Cool thanks for sharing. Here’s my settings based on the Space Cell + Carvon Dual. Space Cell has optimized values like the Bat Max: 15.00 A for a total of 30.00 A across both VESC’s. Your startup boost feels a little too high. I have mine set at 0.040 and always kick push. I might be wrong but I think setting it too high isn’t healthy for the VESC, someone correct me if this isn’t true. You should try FOC, especially if you ride it in crowded areas, super stealthy and quiet.
Motor Max: 70.00 A Motor Min: -60.00 A Bat Max: 15.00 A Batt Min: -12.00 A Absolute Max: 130.00 A
Min input voltage: 8.00 V Max input voltage: 57.00 V Battery cut off start: 35.20 V Battery cut off end: 33.20 V
Startup Boost: 0.040
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No problemo, thanks for tips! I’ll try with lower startup boost next, and cut the length of the cables and if that does not work I think I have to add the extra capacitor to the C18
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