As you can see, if you hold the round side down, it is the bottom right connector you want to remove. Just use a knife or a small drill to get below the track and once you are below you usually can break the pin using a screw driver and pushing it inwards.
Does not look pretty, but it works fine and is a cheap solution done in minutes. Just make sure you mark the cable as „no Power“ or you may run into issued in the future, when the cable ends up in a usb cable storage.
The „dual“ power situation may even dangerous for the power supply and the hardware, as in off state not only the board gets driven over the 5V USB port, but also the chopsticks and the motors.
When using two power supplies the voltages may be on a different ground level (potential), so the combined voltage could even be higher than 5V.
I have my raspberry pi’s connected to the standby rail of the atx power supply. That way it is always powered. The printer is connected to the normal 12V/5V rails and two resistors and a transistor do the on/off job the same way a pc main board would do, but the PI acts as the power button. Therefor I needed to cut all my power lines in the USB cables. Well all but the one on the GeitPrinter, because of the SKRPro board.
I bought this one from TH3D (and its the one DrVax suggested getting) works very well. Thought about making my own but by the time i bought the parts and printed an enclosure for it it would cost more then the one i bought from them. https://www.th3dstudio.com/product/p…power-blocker/
I agree that the dual power is not a good thing.
I just took a knife an cut the power wire on the usb cable. Taped it back up to make sure the cut wire will never short and it works perfect.
The wires are really tiny.