K1 6in (150mm) exhaust duct adapter

Allows the attachment of 6in ducting to the back of the exhaust fan. Overkill for the amount of air from the fan but designed for grow-tent carbon filters. 

Print in two pieces then join with four M3 screws and/or glue. Clips into the back panel of the printer.

V2 added 6/17/2025

I've added a second version of 6in_adapter, this one is stronger with some added structure. The first version works but is a little wobbly when attaching to the back of the printer. 

Converted to modular design, added 6in duct adapter