Got it!!Thanks for all the help!!!
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Do you still hear the sparking noise or is it pretty quiet?
Was wondering if thereās any risk using copper braid covering my phase wires because of how conductive copper is? They are running about 1/2" from the motors but are secured well with zip ties.
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Judge yourselfā¦
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I think nylon braid or something non-conductive would be better over the long-term but as long as it doesnāt cause any shorts, then it will work.
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Like B264 said, I donāt think thereās any immediate danger but if you get any sort of nicks/cuts/abrasions/loose connectors it certainly increases the chance of a short.
You can get expandable cable braid made from polyester or nylon pretty easily online if you want to remove the copper and still keep the look.
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That looks sweet!
Just curious but most of the switches Iāve seen similar to yours were rated for lower voltage. I think the highest I saw was maybe 36v? Is that safe to use? If so, Iād much rather use a smaller switch than the ones I posted.
aeboard has them
I got mine last week to use on my carvons. delivery took 3 weeks.the sensor wires are 5 pin. here is how i turned them into 6 pin
edit: just to be clear. the jst they use is 5 pin but the connector has the full six wires. its just that the temp wire has been sniped halfway and not used. you can kinda see it in the picture. this diagram helped me a ton. its how your standard 9pin ( 9 pin) ebike connector is setup.
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Try some combination of 8mm rca adapter or 8mm dc plug. I found one place months ago but like an idiot, didnt book mark it 
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Iām still having trouble understanding motor current brake max and regen.
Individually, I understand them but together makes them a little confusing.
For example, if I set motor current brake max to -40A and regen to -10 amp:
The motor will brake with 40A of current but where does it get this from? I know the battery is recharging at 10A but where does the extra 30A comes from for the motor?
The motor acts like a generator, generating 40 amps. The controller takes that 40 amps (at low voltage) and converts it to 10 amps at battery voltage.
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So there isnāt a reverse signal being fed to the motor from the battery at -40A? Does the extra 30A get dispersed through the VESC?
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Also just for further clarification, the motor isnāt just generating 40A though right? Itās up to whatever the speed is at the time so it could be +/- 40A. Does the 40A means the VESC is only willing to accept 40A from the motor?
To answer your first question, no there isnāt any signal coming from the battery, just whatever voltage your battery puts out. When braking, the vesc is actually putting energy back into the battery.
to answer your second, BLDC motors always act as generators when spinning if not being fed power from the vesc. The vesc can control how much of that generated power it accepts (up to 40A in this case) and passes on to the battery.
If the motor was connected to nothing, then it wouldnāt be generating any current, but it would still be producing a voltage. If you were to short out the three phase wires, then it would generate a LOT of current, because it would be feeding into a dead short. The vesc can control the effective āresistanceā the motor sees (and thus how much current the motor will produce) continuously to stay under that 40A cap.
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Ahhh I had always assumed that there would be a reverse signal coming from the VESC. I know itās possible to do so but I guess standard programming of the VESC is purely brake and no reverse.
Thanks!
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Thatās the basis of this
I think if you connect a brushed DC motor to the VESC, it might do that. Iām not sure. With a BLDC (3 phase AC) motor though it acts as @MysticalDork described.
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If you set your vesc to do reverse, it will behave as I described above as long as itās going forward, and then switch back to treating the motor as a motor again but with reversed rotation once it crosses the point of zero speed. Long story short, thereās a LOT of complicated math, measurement, timing and guesstimation that the vesc has to do to ājust workā.
With either a brushed or brushless motor braking at low speed, you can feed battery power back to it in reverse to increase the braking strength even more - the maximum braking capability of the motor is not the same at all speeds, and especially in brushed DC motors it falls off sharply at low speed, for reasons that are too complicated to explain here. Your motor min and battery min (regen min) settings affect this significantly.
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I got a downill 36" board with 52 holes drilled, my own + the predrilled ones. i i was thinking when is a deck unsave when riding 25 Mph+?
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Depends entirely on the size+placement of said holes. Need more info before we can tell you anything.
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Does the can bus port use jst-ph 2.0mm pitch connector? Iām trying to make some but not sure if it uses the above.