compasses & circle slice (Dual-function)

I made a compasses. It works very well. It can cut and draw circles. Dual-function integration. Hope this is helpful to you.
Assembly drawing as shown in the figure.

Utility Knife 18mm Snap-off Blades 14 or 15 segments
This model was printed using PLA. (fill in 10%，using a lower layer high (0.2mm)，no support)