Originally Posted by
ta04evah
Currently being developed, and used here in Australia, a simple FDR checker, that plugs into the motors sensor port, and measures the FDR.
If the pulley's are changed, it will detect the change in FDR.
https://www.youtube.com/watch?v=YSUOI7ikzdk
I know, I have started it about 4 years ago. Sadly Uwe Reinhart did copy the idea while mine was used succesfully at the ETS. Currently I have designed some plans to read the motor rpm from the motor power cables.