Pinch torque arm

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cwah
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Pinch torque arm

Post by cwah » Mar 21, 2018 7:25 pm

I need torque arm with minimum play. Pinch torque arm would be good. Anyone sell these?
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

tomjasz
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Re: Pinch torque arm

Post by tomjasz » Mar 22, 2018 2:18 am

cwah wrote:
Mar 21, 2018 7:25 pm
I need torque arm with minimum play. Pinch torque arm would be good. Anyone sell these?
Just Grin V2 here.
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

cwah
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Location: Between paris and london

Re: Pinch torque arm

Post by cwah » Apr 16, 2018 6:48 pm

tomjasz wrote:
Mar 22, 2018 2:18 am
cwah wrote:
Mar 21, 2018 7:25 pm
I need torque arm with minimum play. Pinch torque arm would be good. Anyone sell these?
Just Grin V2 here.
The grin V2 torque arm isn't pinch and not good for motors with regen
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

tomjasz
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Re: Pinch torque arm

Post by tomjasz » Apr 17, 2018 1:48 am

cwah wrote:
Apr 16, 2018 6:48 pm


The grin V2 torque arm isn't pinch and not good for motors with regen
Works great, one installed as designed and one reversed. Running for 3 years. 2500 miles. Just a 1000W MXUS at 52V 25A buttoning regen.
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

cwah
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Posts: 4533
Joined: Jul 24, 2011 5:42 am
Location: Between paris and london

Re: Pinch torque arm

Post by cwah » Apr 17, 2018 2:44 am

tomjasz wrote:
Apr 17, 2018 1:48 am
cwah wrote:
Apr 16, 2018 6:48 pm


The grin V2 torque arm isn't pinch and not good for motors with regen
Works great, one installed as designed and one reversed. Running for 3 years. 2500 miles. Just a 1000W MXUS at 52V 25A buttoning regen.
How do you do that? I have 2 torque arm mounted reverse to each other and there are still wiggle when using regen vs acceleration
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

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pwd
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Re: Pinch torque arm

Post by pwd » Apr 17, 2018 2:58 pm

I bought a solid torque arm from here (there is a clamping option in there too):
https://endless-sphere.com/forums/viewt ... 31&t=69073

I've been using it with regen and its been solid, even without being clamped.
Current Build:
Rocky Mountain Element
Magic Pie 4 front + Magic Pie rear w/ Infineon 12fet (Leafmotor 1500W coming soon...)
14S5P em3ev 30Q pack

Old Build:
GIANT ATX 980 w/ Cycle Analyst v2.25
Golden Motor Magic Pie (internal controller) X2
14S3P 15aH: 6X 6S 5000mAh + 3X 2S 5000mAh LiPo packs
My thread: viewtopic.php?f=2&t=47295&p=693208

cwah
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Re: Pinch torque arm

Post by cwah » Apr 20, 2018 6:58 am

I decided to make my own as getting 2 drilled and shipped would have cost me over $100!
https://endless-sphere.com/forums/viewt ... =3&t=93849
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

tomjasz
1.21 GW
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Joined: Mar 29, 2014 1:45 pm
Location: Out riding, MN USA
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Re: Pinch torque arm

Post by tomjasz » Apr 20, 2018 8:37 am

cwah wrote:
Apr 17, 2018 2:44 am
tomjasz wrote:
Apr 17, 2018 1:48 am
cwah wrote:
Apr 16, 2018 6:48 pm


The grin V2 torque arm isn't pinch and not good for motors with regen
Works great, one installed as designed and one reversed. Running for 3 years. 2500 miles. Just a 1000W MXUS at 52V 25A buttoning regen.
How do you do that? I have 2 torque arm mounted reverse to each other and there are still wiggle when using regen vs acceleration
Perhaps you run faster than I do. Old and slow here...
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

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