Re: Re: Thermodynamics of rubber bands

From: Tapio Linkosalo <tapio.linkosalo_at_iki.fi>
Date: Wed, 23 Jun 2010 21:14:15 +0300

Benjamin Saks wrote:
>
>
> So after all this great discussion, I am still left to wonder. Would it
> be better to "warm up" a rubber so that the change in temperature is
> less? If you have a smaller Delta T would that make the rubber less
> brittle, reducing the chances of breaking? Or would it help to cool down
> the motor significantly while winding in hopes of keeping the whole
> temperature range lower than the 100 F ceiling?

The ideal is to have your rubber at 30 to 35C. So warm it up or cool it
down to get to that. If you cannot, select a batch that can stand the
heat, or giver better torque in the cold.

I think that at indoor motor dimensions all heat produced by winding is
dissipated at once to the surrounding air.



-Tapio-
Received on Wed Jun 23 2010 - 11:14:55 CEST