I did somehow read about the idea of printing Jenga bricks as test files and thought why not include some classic calibration stuff in them so you have that done as well.
Here we go, should give you a good first impression of your slicing and printing success, suitable for 0,4 and 0,6 nozzle and most layer heights, recommend using multiplied values of .05 though (0,05 / 0,1 / 0,15 / and so on)
Have fun with it, will post some pictures when i have done a few of them to stack.
Features included so far:
6mm holes for measuring precision in x/y/z
tolerance holes to slide in another brick with 0,1 and 0,2 tolerance
overhang test with 55/60/65/70/80°
precision test with 0,1/0,2/0,3/0,4/0,5/0,6 gaps and stripes (0,1-0,6+up)
Single wall thickness measurement in middle of brick (0,4/0,6mm)
Stringing and pointy finish tests
bridging everywhere :D
Feel free to suggest any upgrades or changes!