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Old 06-09-2019, 08:27 AM   #21
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Default Re: Best HH motor for my custom project.

Thanks a lot, 4S it is then.

EDIT: 4S is amazing, so much more power and speed.

Last edited by SnoopyBG; 06-10-2019 at 04:00 PM.
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Old 06-11-2019, 03:11 AM   #22
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Default Re: Best HH motor for my custom project.

And what's the maximum power consumption of a 16T Crawlmaster. I'm trying to see if I'm being bottlenecked by the 18650 cells I'm using. I don't know how many ampers they need to be giving out at 4S to satisfy the pull of the motor.

Also I don't get whether amp draw goes up or down when I volt up. Max power goes up, but only because of the voltage or amps go up as well?

Last edited by SnoopyBG; 06-11-2019 at 03:19 AM.
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Old 06-12-2019, 12:09 AM   #23
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Default Re: Best HH motor for my custom project.

Is that what the silver brushes are for? Higher voltage?
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Old 06-12-2019, 03:04 PM   #24
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Default Re: Best HH motor for my custom project.

Quote:
Originally Posted by SnoopyBG View Post
And what's the maximum power consumption of a 16T Crawlmaster. I'm trying to see if I'm being bottlenecked by the 18650 cells I'm using. I don't know how many ampers they need to be giving out at 4S to satisfy the pull of the motor.

Also I don't get whether amp draw goes up or down when I volt up. Max power goes up, but only because of the voltage or amps go up as well?

Thats a loaded question. It depends on how you drive it. It will pull 40 plus amps if you get it bound down that badly. Most of the time it won't exceed 10 though.


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Is that what the silver brushes are for? Higher voltage?

Lower voltage. The higher the voltage, the more resistance brushes need to prevent arcing.
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Old 06-12-2019, 04:03 PM   #25
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Default Re: Best HH motor for my custom project.

Thanks a lot, I guess I'm fine then as it is not a crawler and it doesn't even have the grip to get bound up.
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Old 06-18-2019, 03:03 AM   #26
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Default Re: Best HH motor for my custom project.

Update: This motor is amazing. Initial speed is low and controllable (although I can't help to wonder what a skewed arm would be like) and it has plenty of top speed at 4S. It does heat up a lot though. I can't keep my hand on it for more than 5s.
It probably is up to it running at 4S, but I read some stuff about motors heating up when batteries can't pump out enough amps. Is that a thing?
I have a heat sink and fan ordered but wasted energy is bad in any case.
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Old 06-18-2019, 08:41 AM   #27
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Default Re: Best HH motor for my custom project.

Its because you are running 4s, and might need to add a teeny bit of timing to be happy at that RPM. They will run at 180f (way past scalding) with no problems. I make them with very high temperature components and adhesives.
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