NIH 3DPX-013752 (Remix)

This is not my design, by Legedus, https://3dprint.nih.gov/discover/3DPX-013752, their design is amazing but had real world print integrity issue. So I remixed it to a solid shape rather than how they had it printing modular because of beveled edges

****You MIGHT need to size this down in your slicer. I tried on various types to test and sometimes I had to uniform scale down to 10% of the size or 90% of the items size to get the right 19 cm dimension. I tried in several ways to troubleshoot this and it was inconsistent with causing the issue. So hence the warning if you import it, the model is huge just bring it down to 10% (or 90% of the size) and it'll print to 19cm dimensions. I tried several times to figure it out, couldn't.