Circular Slide Rule - Complete Solution

Small circular slide rule with a diameter of 5 cm and a height of 1 cm.
This complete solution offers the upper ring, the lower ring and a ring lock.

Don't use a support (brim) for the rings to get precise scales.

Some sanding or polishing can improve the moving.
Paint the 1-scale with ie nail polish to improve the handling and visibility.

Printing:
approx. 30% Infill