Card-sized small circles stencil, more or less aimed at mechanical drawing students. 

Print reccomendations 

• Use 0.1mm layer height;
• Use Arachne for your wall generator, otherwise it won't print with 0.4mm nozzles;
• Add a pause on the beggining of layer 8, and switch to a different color filament, so as to be able to see the markings on the stencil;
• Use slower print speeds, otherwise the circles won't be very precise.