Re: [CAD_CAM_EDM_DRO] Re: Spindle motors

I believe that there is a lot of snake oil, smoke and mirrors etc in
rating hobby brushless motors and speed controllers.

Maybe some outright lies also

Some of the amp capacity (several hundred amps) appear to be a caculated
amp flow based on the input voltage and the on resistance of the power
FET's and no correction for the battery impedance..

No way does 13 gauge wire carry 300 amps for very long.

Hugh
semi retired hobby shop owner and repair tech

Stephen Wille Padnos wrote:

>R Rogers wrote:
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>>R/C hobby motors are designed for high output for short bursts and not many iterations. Run for 5 minutes, cool for 30. They are stripped down all out hot rods. It'd be like putting a 1/4 mile race engine in the family wagon. Wouldn't get far, but you'd get their in a hurry.
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>And don't forget the bearing loading. A mill has high side loads, an RC
>motor has high axial loads. I suspect the bearings would last about 17
>seconds in a milling application. :)
>
>- Steve
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