Noob question thread! 2020_Summer

Why the preference for hub motors?

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for use in a 4wd setup? I personally have used boundmotor 105mm hub motor for a shitty diy setup. crazy torque. honestly, any hub drive in 4wd would have enough torque to start with, its the range / top speed u need to worry about.

also weight, 4wd is heavy af, my 4wd weighs 12kg

Edit: why fixate on 4wd?

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I live in Germany, unfortunately, and esk8 is illegal. Hub motors are probably as clandestino as is gets.

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I found that I do not have enough torque on the Backfire Mini with larger cloud wheels (not urethane).

wut?? r u using the Iwonder conversion kit?

back on topic, the esc is program not to output more than 40A in total for motors, this result in less torque when u r using bigger wheels. if u have to use big wheel, maybe direct drive would be a better option? at least it would be better than 4wd setup which is pretty unnecessary in most situation (4wd rider, please don’t shoot me)

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Oh yeah, works like a charm! > IWonder Pulley for HUB motors - #110 by hans_maier

Most people would agree with you, I guess, and TB DD would do the job for sure. However, do you think a 4 hub motors could possibly be lighter than 1 TB DD?

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u don’t have to get the TBDD per sa, there are other direct drive options, and 4hubs are usually heavier than a TBDD in most case, unless u can find 4 tiny lightweight hubs lol

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Interesting. I thought 4 hub motors would be lighter than 1 TB DD. I have one and it’s crazy heavy. Can you suggest any light weight DD or at least some kg lighter than TB DD?

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i’ve only got boundmotor 105mm hub motor in 4wd setup to compare it with, and my 4wd is heavier than TBDD, that’s without considering battery and escs weight.

first one comes in mind might be elofty DD, but im not sure where to get them as I was never interested in it.

this is turning in to a back and forth conversation between us, I will let others chime in :stuck_out_tongue:

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35A can be pushed to 40A np. But trust me, you do not want that to be a AWD… unless you want to fly off your board :wink:

Edit: yeah, I’m currently fixing one of my batteries…

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Anyone know where I can get a good 10s bms?

Gotta order two of them :wink:

If you can wait, Bestech, LLT, and battery supports/supower battery are commonly used from what I’ve seen.

Got a link? I have no problem waiting since I can’t charge the battery cells anyways :upside_down_face:

yep:
http://www.bestechpower.com/
http://www.batterysupports.com/
https://www.lithiumbatterypcb.com/
I wouldn’t know where to get one of those fancy smart bms’s though, unless they sell some on those sites

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Thanks.

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Noob question time: so if I need a 10s BMS for a samsung 35E 5p (40A), do I need the BMS to be 50A?

I seen the other forums about it but its not very clear.

I’m confused about the whole “controller load” thing.

Are you planning on wiring the BMS for discharge or bypass? Also, for more battery related questions and topics I recommend this thread as well: The battery builders club

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The pack can deliver peaks of 65a. I’d say if you’re using the bms for discharge, 60a should be fine. Just make sure your esc is set to the correct values so your bms doesn’t cut you off

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Checked there. Nothing about load. Just how to build, which i know. Just not the bms load stuff.