Noob question thread! 2020_Summer

Is there no more axle space left? It looks like if you moved the motor mounts a few mm closer it would work…

Theirs a rod that connects the two collars so they wont go inward anymore the gear on the back of the wheel makes contact on both sides

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Maybe the rod you got was meant for dual 6380 motors? And with these trucks I don’t think you can do dual 6380, but dual 6374 should be possible, so I wonder if that’s your issue…

he’s using 6374s.

Ahh maybe he did send me the wrong mount I’m waiting for a new one

quick question, is the mount supposed to be like that? I thought it was the other way.

Mount inwards, and then clamp? No, that would just put extra stress on the motor shaft.

I checked the website, they say the crossbar works with dual 6380, but also both kinds of trucks. I’m wondering now if they have 2 different versions, or if with these old 218mm trucks you’re supposed to use 12mm pulleys…

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Noted. Might be the wrong mount then.

Magnets start to degrade at 80C.

Are you sure your temp readings are correct?

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I think I found the issue or one of them

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This is false information. Stop please

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I’m not spreading false information. I’m showing information that I’ve heard from multiple sources that answered various questions about outrunners. The one that was questionable was the one I was linked to since certain equations did not match up.

If there was a plausible info that is useful, allow me to know. Until then, I will see if I can find plausible info.

This is all you need to know about motor and vesc limits.

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thank you.

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This is false, it does not account for duty cycle. If your motor amps are set to 100A for example, you cannot even draw more than 95A from the battery, as the maximum duty cycle is set at 95%, and even that’s only at the exact top speed possible. If the motor is spinning at half its top speed, then battery amps cannot exceed 47.5A etc

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Motor amps =/= draws. I forgot to correct that statement since it was so late when I said that.

Edited.

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Right here you can see that the motor current is nearly double the battery current… just what was said above, you need to account for duty cycle.

At a low duty cycle, there might only be a 3 volts going to the motor, but something 60 amps going to the motor. That’s only 180 watts, and when divided by the battery voltage, let’s say 42 volts, comes out to around 4.28 amps from the battery…

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Interesting. I’ll probably be studying more on the equation so that I can see if I can understand this better. I’ve seen so many info on this that its hard to tell whats accurate. It looks like type of transformer. Would that be dependent on esc?

I like to increase my knowledge on this more.

Edit for the reason:

I still can’t find the kv rating on my dang motors lol

Also, how do i find the motor max? (Ironically, this was the start of my search of this whole thing lol)

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I think this is right… if I’m getting the idea.

The 44.4 is the max my motor can hold after doing the math. This is a 10s set up