开云体育

I recently fixed my 2nd Gemini1.

The flat motor cables were intermittent.

I made some cat5e cables 2.5' long and it seemed to work but I let it run on my bench for an hour and noticed the PWM signal (pin#5) on the RA drive IC give some really long pulses (simply put oscope in envelope mode) and the motor jerk for a brief moment. I had laying around a 15' long cat 6 cable and zero issue with 9 hours of bench running.

After researching, I found cat8 cables are shielded pairs and cost the same (~$6 for a pair of 3' cables on Aliexpress), so I am using them w/o issue.