Calibration Quoob(yes, another calibration cube thing)

Well, this is my shot at designing an interesting calibration cube. It's got some easy bits, and other bits are slightly evil, but here is the list of features:

25mm size in xyz, with size markers for z and x/y(depending on which way you decide to orient it)

Awkward corner overhang/bridge at the meeting between the logo and chamfer

The inset numbering to give the printer a bit more of a challenge than just a slight overhang in the x and y of most calibration cubes

small bed contact area to test adhesion

large bridge in centre hole to test bridging

relatively thin walls to test gap fill and solid infill settings, as well as exaggerating overextrusion issues if present.

Top corner chamfer produces a very thin wall section to test cleanliness of thin extrusions

To exaggerate the appearance of flow imperfections, use a grey filament under harsh lighting