A printed dial/compass with an in-place printed bearing, and labeled circles radii.
Hours of circle drawing entertainment guaranteed, perfect for endless days in quarantine.
The printed bearing has a center indicator to easily choose the center point of the circle.
No need for additional parts, usable straight out off the printed.
Select the file based on the tolerance your printer is capable of.
0.4 should be achievable in most FFF printers.
Use at least 3 perimeters, supports, no brim.
Make sure cooling is on if possible.
The author hasn't provided the model origin yet.