About this 3D model
Simple 3D print test of extrusion consistency over 20mm x 20mm. I assume a .4mm nozzle (you could easily scale for others) so your slicer should only make 1 layer by 1 perimeter of the simple zigzag pattern. This object was made in Tinkercad. https://www.tinkercad.com/things/j0PLDeQISfw