Made this to use as a gauge for future holes in projects.
The Height can be determined when you print.
I printed mine using ABS, Height was @75% so 15mm
with 3 outer layers. with .1mm layers. Also the spacing in between holes is no less than 3mm anywhere on the part.
You can then decide on a hole. and count upwards to downwards to determine the real world hole size you will end up with also premised on your settings at the time of print. Which Ill print on a ziplock bag to use as storage for this part.
** Post print completion.
The Draft on the part needs a small amount of cleaning up. its completely evident on the 1mm hole. on the bottom side? no hole. on the top side you can see the hole. My top part did not complete the 3 layers as requested (Im trying out a new slicer(Simplify3d)) But aside from the hiccup Im quite pleased with the part. the holes did come out larger as expected. now I have a base line for future holes.
Also I tried to shoot for a shape that was easy to hold and did not take up any wasted space. I'll be making one based on common fractions soon.