I HIGHLY ADVISE PRINTING THE TEST TUBE FIRST TO CONFIRM BOTTLE FITMENT!
This is a paint rack I designed to wall mount my Army Painter Air Paint set. It holds the complete Warpaints Air set (126 colors). The top has a shelf large enough to hold larger bottles of medium, extra paints, citadel bottles, etc.
The rack is designed to hold Army Painter bottles and they fit very snug in the holes. Other bottles may or may not fit without scaling up the model. I will upload a "Test Tube" file for you to use to test scaling up %'s to get the fit you need if you want to use it for other brands. I know for sure Vallejo bottles will be too large and will require scaling up.