I don't usually print stuff without a purpose. I print useful parts for printers, other hobbies or my house. So when I designed my maker coin I didn't want it to be a piece of plastic with no use.

This is my maker coin and it has a lot of inbuilt printer tests. 

Tolerance tests from 0.4 down to 0.2mm. 

A 34mm long bridge test.

2mm cylinder for testing print cooling.

Overhang tests from 40 degrees to 55 degrees as well as a a fillet where the overhang increses the higher you print.

Lines from 0.8 down to 0.2mm for tuning thin lines.

All this in a makercoin!

I made a video showing it of: 

Happy printing! /3Drcnc