Marker compass adapter: pen clamp

Have you ever had to draw a circle in pen but your compass had only a pencil tip? With this simple and small print you can screw to the compass colour pencils, pens, markers… Printit is shaped in a easy-to-print shapedoesn't need supportsI print in PLA but I think other materials work tooI print at 1,5 mm layer height and turn out goodthe screw is initially a bit hard to screw in, but after a few twists it becomes softIt works good with standard pens, but If your marker is too small or too large, tell me and i will upload a new version If you want to commercialize my models, just contact me to decide the terms! ; )