This is a remix of the tool side of Robert Bieber's great Magnetic Dust Collection connector for attachment to a K40 laser for venting. I use 4" metallic flex duct to attach my laser and this allows me to move the laser into storage, but quickly attach when I want to use it. Just use the 4" duct side from his thing.
Original Thing Here
https://www.thingiverse.com/thing:5358837
I also used wleigh's K40 adapter (that I had already been using) for the bolt hole locations and sizes. you can find that here if you want a more permanent solution:
https://www.thingiverse.com/thing:2809440
K40-Tool.stl | 887.1KB |