the cable clamps are print in place without any support. Support will lock the two parts together.

On some of the models you might want to screw a m3 screw in the center of the pivot. The screw is not to hold the parts together. It is to strengthen the pivot. The layers are the weakest part of 3d prints. So if that is reinforced with a screw it is greatly strengthened. There is no rotational force on the screw, so it will not unscrew by opening and closing.

clamp 1 is 30mm id

clamp 3 is 35mm id

clamp 3a is 30mm id

clamp 40 is 40mm id w/ screw hole

clamp 4 is 45mm ID

clamp 5 is 60mm ID w/ screw hole