[efoote868]

Originally Posted by James Juncker

If you are using some system I would recommend the use of a micro switch at the end of a lift should you go with that method to measure the time from start to stop. Similarly I would recommend to lift weight as the motors won't be used at their no load ability on a robot. I also think that some consideration ought to be given to building a gearbox to change motors in and out of and measuring their individual power consumed and difference in speed.

Those are all very good suggestions, thank you.

Part of the testing will be to get the students to program the FRC controller to measure the time it takes for the test to elapse, and whether it's a micro switch, encoder count or some sort of photo switch (or combination thereof) is still yet to be determined.

I'll be interested in seeing the difference in power characteristics. I'm not sure what we'll have available in terms of data logging, and I'm very curious to see how well the motors fit the datasheet.


EDIT:

Originally Posted by Ether

The proposed test rig with a "load CIM" puts a substantial load on the CIM being tested when the load switch is closed.

Would you think that the energy the "load CIM" dissipates would change its resistance characteristics? Are there any steps we can take to mitigate the effect?