This is a stand for drying a glass carboy after washing it. Fits both of my 5gal and 6.5gal glass carboys. The neck of the carboy is held in place so that it cannot tip while in the stand.
The design is made using two bezier curves, extruded rotationally, and then rounded holes punched in the sidewall for airflow and less material usage.
The scad file is attached, which allows easy editing of diameters, heights, angle of carboy glass where stand supports it, number of "legs", ratio of legs to holes, etc. Note that at full resolution, it takes ~10 minutes to perform a final render the object.
No supports should be required. I printed in PETG for water resistance.