Summary

This object was made in Tinkercad. Edit it online https://www.tinkercad.com/things/4P1kIWEklcT
Not all parts need supports but you can include supports everywhere, the infill was 20%
I have printed in PLA, you have to get 4mm threaded rod and a screw to secure the round base to the rectangular piece, just enogh so it can rotate
The stability is great I made it to fit in my FREELANDER

one knob I got it from FLYINRIZ
Second Knob from PALODION