module back(){ difference(){ translate([-4,0,0]) cube([4,17. ... and simply build my own USB to serial adapter that uses pogo pins instead of pin headers. This actually wouldn’t be that much ...

this simple adapter should do the trick. The Ugreen USB-C 4-port hub is a slim and inexpensive adapter that allows you to add four full-size USB 3.0 ports that can handle data transfer at up to 5Gbps.