Use this test model to check if your printer suffers from z binding and/or z wobble/slanted layers. Print with 20% or more (no more infill needed though), no supports, print with open side facing up.

The model is made to use less filament and still give you efficient “readings”, I added the little edge at the bottom because the older version kept sticking too much too the print bed, this slant made it much easier to slide my scrapper under and remove.