Knob M6

I needed a knob for a DIY tool in my woodshop. The lid covers the M6 nut which is sunken in the knob and can take a hex screw from the other side (which sits in a sliding block). I quickly designed this with Tinkercad and printed with PETG. The nut fits in very tightly, to get the nut into place use a hammer while sitting on a screw.
There is no support needed, just finishing the nut housing may be required.