Negative volume - double tear romboid cylinder for horizontal holes

Horizontal holes ar not ok to be rounded. Best to use this romboid cylinder to make a hole suited for 3d printing.

The model can be added to Prusa Slicer gallery and used as negative volume.

Adding to gallery:

After that, it can be added as a negative volume:

Then you cand resize it, but first disable scaling (click on the lock icon to unlock it):

result: