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Motor dyno (inertial type)

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I got the idear from this it uses a p.c mouse and a C.D.

The software continuously plots rpm, torque and power and exports curves to excel:clap:

Sci-Spot.com - Dynamometer

I already built a running in rig for new motors or brushes on 130 size motors.

(The motor mounts are from an Xmod and the gears are from a kyosho mini z)

I could test motors measuring the output of the slave on below rig and got some pretty consistant results.

It was then converted (in a rush) to a prototype dyno using a P.C mouse. I only want to compare the motors against each other so the power readings are not true. The software was just adjusted to the motors manufactures specs.

Results:

I tested te same motor over and over and got very consistant results so I am happy it is working ok.

I rebuilt a motor and tested it before and after

All five motors below are the same model

View attachment 28481

View attachment 34062

View attachment 34068

View attachment 147088

View attachment 147094
 
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