New Motor for a Mid-Drive ?

Discussions related to motors other than hub motors.
This includes R/C motors, botttom bracket, roller and geared drives.
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ScooterMan101   1 MW

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New Motor for a Mid-Drive ?

Post by ScooterMan101 » Feb 13 2019 1:17pm

What are your thoughts on this ?

Could be the new go to motor for DIY Mid-Drives and Swing Arm mounted Mid-Drives . 8)

https://hobbyking.com/en_us/turnigy-rot ... tm_term=LF
My first conversion ... Sold

viewtopic.php?f=3&t=71378&p=1077497&hil ... 1#p1077497

It's 2018 already, ( now 2019 ) lets get some real , improved e-bike / e-velomobile / e-motorcycle designs .

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fechter   100 GW

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Re: New Motor for a Mid-Drive ?

Post by fechter » Feb 13 2019 1:25pm

Looks pretty good.
Spec.
Battery: 10 Cell / 37V
RPM: 172kv
Max current: 120A
Watts: 5300w
No load current: 44V/1.65A
Internal resistance: 0.021 ohm
Weight: 1080g
Diameter of shaft: 10mm
Suggested ESC: 180A 12S Compatible
"One test is worth a thousand opinions"

ScooterMan101   1 MW

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Re: New Motor for a Mid-Drive ?

Post by ScooterMan101 » Feb 13 2019 1:39pm

I just looked at the ESC that Hobby King sells for this motor, and it is for flight only , will not work with other applications .

Here is their quote ...

" WARNING
This is an R/C plane/heli only ESC. Do not attempt to use it to power car, buggy, skateboard, go-kart or similar machines. The programming logic is only designed for R/C Planes and Heli and will burn if applied to other devices. "

So it looks like someone is going to have to make a higher powered capable
VESC for this motor .
With all the Talent some of the E.S. Members have I am sure we can have a Crowd Sourced/Designed Mega , VESC/ESC .
My first conversion ... Sold

viewtopic.php?f=3&t=71378&p=1077497&hil ... 1#p1077497

It's 2018 already, ( now 2019 ) lets get some real , improved e-bike / e-velomobile / e-motorcycle designs .

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amberwolf   100 GW

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Re: New Motor for a Mid-Drive ?

Post by amberwolf » Feb 13 2019 2:50pm

FWIW, the Rotomax 50cc has been around a while. I expect there have been multiple versions of it, but it's been posted about here on ES for at least 8 years, and builds have been done with it.

https://endless-sphere.com/forums/searc ... mit=Search

There are also "ebike" versions of the VESC and similar under development (might be finished already, haven't looked up the threads in a while).

ScooterMan101   1 MW

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Re: New Motor for a Mid-Drive ?

Post by ScooterMan101 » Feb 13 2019 3:45pm

Looking up the threads shows that a controller does in fact need to be made for this motor to work on a e-bike , and other land based systems .
This person has been looking for over 8 months now ...

https://endless-sphere.com/forums/viewt ... c#p1438420

Sure would like to see Kepler and others make a custom ESC/VESC for this motor.

It looks like hall sensors need to be added to the motor as well .
My first conversion ... Sold

viewtopic.php?f=3&t=71378&p=1077497&hil ... 1#p1077497

It's 2018 already, ( now 2019 ) lets get some real , improved e-bike / e-velomobile / e-motorcycle designs .

larsb   100 kW

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Re: New Motor for a Mid-Drive ?

Post by larsb » Feb 14 2019 6:56am

Isn't nucular controller up to 100kerpm.. yep! The 12fet should be a pretty good match.
Ride on :D

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Ecyclist   1 kW

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Re: New Motor for a Mid-Drive ?

Post by Ecyclist » Feb 14 2019 1:35pm

ScooterMan101 wrote:
Feb 13 2019 1:17pm
What are your thoughts on this ?

Could be the new go to motor for DIY Mid-Drives and Swing Arm mounted Mid-Drives . 8)

https://hobbyking.com/en_us/turnigy-rot ... tm_term=LF
I'm confident that any form of VESC 6 will work well with this motor. ESCAP would be my first choice. Unfortunately they are not readily available. FLIPSKY 6.6 should do OK as well. They can both work in FOC so HALL sensors are not an absolute must. Don't use VESC 4.12 for this motor or you will kill DRV.
Don't expect from life to be easy and then it will be.
My builds:
Avian with hypocycloidal drive https://endless-sphere.com/forums/viewt ... 2#p1318056
2016 GNG extreme drive https://endless-sphere.com/forums/viewt ... 28&t=82252

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crossbreak   100 MW

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Re: New Motor for a Mid-Drive ?

Post by crossbreak » Feb 16 2019 11:10pm

larsb wrote:
Feb 14 2019 6:56am
Isn't nucular controller up to 100kerpm.. yep!
not so sure about that. hopefully i can test that soon

larsb   100 kW

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Re: New Motor for a Mid-Drive ?

Post by larsb » Feb 17 2019 5:31am

Vasilis original thread name for the nucular is 100kerpm controller :D I think he even posted a video driving some high erpms.

Post the results when you try :D
Ride on :D

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crossbreak   100 MW

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Re: New Motor for a Mid-Drive ?

Post by crossbreak » Feb 17 2019 8:06am

i actually dont have the motor yet. i asked him the telegram group yesterday and he answered 10 minutes ago that it will run stable till 60k erpm, that is what he recommends to run max

larsb   100 kW

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Re: New Motor for a Mid-Drive ?

Post by larsb » Feb 17 2019 9:06am

That was a surprise! Did you ask both for sensored/sensorless? I really thought it would be higher.
Ride on :D

district9prawn   100 W

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Re: New Motor for a Mid-Drive ?

Post by district9prawn » Feb 17 2019 7:35pm

crossbreak wrote:
Feb 17 2019 8:06am
i actually dont have the motor yet. i asked him the telegram group yesterday and he answered 10 minutes ago that it will run stable till 60k erpm, that is what he recommends to run max
Maybe 100k is in 6 step and 60k is for foc?

All the vesc variants I have played with will switch up to around 35khz before the cpu starts to crap out. At 100k erpm that is about 20 pwm pulses per electrical revolution.
Neu 8057 6kW left hand drive hardtail with 18 fet Vesc: viewtopic.php?f=6&t=96754

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