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Help for small elec motor / shaft joint

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Help for small elec motor / shaft joint

Old 07-10-2006, 10:44 AM
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dpurkey
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Default Help for small elec motor / shaft joint

Hello, I'm working on a kid boat with a 380 motor and small 1/16" shaft. I can't find a decent u joint material. I used to use fuel tubing on boats like this but on this one it keeps coming loose. I don't have room to do much else.
Also, if I use a lipo battery will he ruin it by over discharging it? I can't find a small esc with a low volt cuttoff or for that matter reverse which the boy would like to have.
Thanks for any ideas you might have, Dale
Old 07-11-2006, 07:56 PM
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ryan_t888
 
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Default RE: Help for small elec motor / shaft joint


ORIGINAL: dpurkey

Hello, I'm working on a kid boat with a 380 motor and small 1/16" shaft. I can't find a decent u joint material. I used to use fuel tubing on boats like this but on this one it keeps coming loose. I don't have room to do much else.
Also, if I use a lipo battery will he ruin it by over discharging it? I can't find a small esc with a low volt cuttoff or for that matter reverse which the boy would like to have.
I've never heard of a 1.6mm prop shaft, so I don't know what to tell you. I have used the "small" fuel tubing on 2.2mm shafts with no problems. In some cases it makes a great flex shaft.

Over discharging a LiPo battery below 2.75v/cell will harm it. Most LiPo safe ESC will cut the motor out at 3v/cell
Use this with your current ESC for LiPo batts. http://www.dimensionengineering.com/LipoShield.htm\

Ryan

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