Nut & Bolt identifier

Stripped down nut and bolt identifier..

Print-speed of 60mm/s = ~2h print-time

I printed with:
8% infill gyroid... If you use any other review to make sure the top layers can form on top.
No supports
0.2mm layers, but 0.3 would probably work too.
Print external walls first (setting in cura)

Scaling of the model will cause dimensions to be off. You are probably better off reducing the flow on the outer walls to improve dimensions a bit, but printing outer walls first should be enough.