There is my point. The hardware is easy to make but not so the software. If you are using your adapter and the car catches fire, whose fault is it? So here is the thing. The charger has to identify an account to send the bill to. (Car's VIN?) The charger has to keep track of the load parameters to know how to calculate the $ amount. The CAR controls the charge. So this adapter must translate CCS/CHAdeMo to Supercharger and vice versa. It also needs some security so that it can't be hacked. Ex - hold a different VIN. I believe Tesla also has safeties measuring the wand and/or charge port temperature. I think Tesla should open their SC's to everyone. Just require them to use a Tesla adapter and set up an account. I'll bet if they did and charged about what they charge now ($) EA would blow a fuse. From what I can tell EA charges 2X or 3X what Tesla does (for the same gallon of gas).