Parametric Cover for AC Power Wiring Connector screw Terminal V1.0

When we do DIY installations or self wiring AC electrics, for convenience we usually use the "Power Wiring Connector screw Terminal" like the one here (as shown in the first example in the link): https://www.electricaleasy.com/2018/03/terminal-block-types.html
And again for convenience and safety, we usually wrap electrical tape over it, as time goes by, when maintenance work is needed, the tape gets sticky and unpleasant to work with (maybe it's because I live in tropical now).

This program will generate the case that can be put together using screw and nuts and cover the whole connection. There's a wire clipper for the rubber part of the cable to add an extra layer of security for copper wire accidentally breaking. Although connector's tightening screw is already very deep, theoretically sticking metal into it will still get us shocked(although I do know no one will do it on purpose), so the set comes with a piece called "OCD cover" to cover up the tightening screw by snapping onto the whole casing. And the "OCD cover" piece isn't mandatory to complete the setup.

Key parameters that can be changed can be measured according to a picture I uploaded, in addition, change the "c_Num_Units" according to how you cut the connectors.

Possible future improvement: Visual feature (like engraving pattern/text) for customization. Independent mounting screw holes(as currently shared with the connector's mounting hole which also seal the box. It make trouble shooting/maintenance hard). Also exporting separate pieces now is controlled by some enabler variables in the bottom of the code as I can't figure exporting separate STLs in one go (Just change the disp_.... = 0 for off and 1 for on) .

Any fixes or suggestions please do not hesitate to comment.