Design

These items are made to fit to standard 120mm fans commonly made by computer, chassis and rack fan manufacturers to connect to a 100mm flexible ventilation pipe with a clamp.

There are two different looks available. The basic versions use much less plastic.

There are also two sizes of each design available. The short variant has a 20mm section to clamp the pipe, the long version has a 40mm section for clamping which is easier especially if you do not cut your pipe exactly evenly, but uses a bit more plastic.

Printing

The adaptor models are designed to be printed with the side that connects to the fan flat on the print bed with no supports. I used PLA which worked fine.