So a good question has been brought up and I cant find the answer to it. For our robots (not competition), we have made our own “Y” PWM cables instead of purchasing them.This process is just stripping the wire in the middle and the ends of a cut one, wrapping and soldering them together. Is it legal to use the modified ones weve made on our robot or do we have to purchase PWM’s that are specifically made as “Y” cables?
There is no rule that prohibits making or modifying PWM cables. If you make your own, a “Y” cable is easily made by crimping two wires in the pins for one connector. I suggest that if you perform wire splices, that solder and heatshrink be used.
Hensen Hobbies Sells some preassembled kits for producing PWM wires (or, as they’re known in the hobby world ‘servo wires’). We’ve got one of the fancy ones with included crimper and they do work as advertised. The tool is obviously the expensive bit and, while not strictly necessary, they make the whole process much faster and reliable.