Design

These items are made to fit to standard 140mm fans commonly made by computer, chassis and rack fan manufacturers to connect to a 140mm flexible air conditioning pipe with a clamp.

There are also two sizes available. The short variant has a 30mm section to clamp the pipe, the long version has a 60mm section for clamping which is easier especially if you do not cut your pipe exactly evenly, but uses a bit more plastic.

The outside diameter of the part that connects to the pipe is 135mm, enough to slip the pipe on easily but not too large.

Printing

These 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.