Hole Test 6mm and 3mm Diameters

thingiverse

This is nothing but a test piece for evaluating how a printer prints holes. The rectangular part measures 15x15x5 mm, with a small hole boasting a diameter of 3 mm and a large hole measuring in at 6 mm. The FreeCAD source file is included, although it's about as straightforward a project as possible - essentially the 3D equivalent of Hello World, but if you want to see how FreeCAD works at its most basic level, it might be worth checking out.