Lithophane Calibration Test 0.4 Nozzle

I designed this Lithophane Calibration test for a standard sized nozzle 0.4mm.

All thicknesses are multiples of 0.4 to help with choosing appropriate max/min thicknesses.

The only exception is the 0.5mm which i did intentionally. It would print as a hole, unless you choose "Print thin walls", which just made for a messier print. 

I wouldn't think anyone would choose 0.4mm as their thinnest setting anyway. 

There are two different sizes, and both have 3 different variations.

40x40mm and 80x80mm. 

STD - has a mix of raised and recessed numbers
RAISED - has only raised numbers
BLANK - has no numbers

I find STD takes away from what you are trying to see, so either RAISED (so you can read the value) or BLANK, and just reference the sizes from the other files.