Fan Duct Adapter 4" to 6" - 100mm to 150mm v5
thingiverse
I needed a Duct Adapter for my 50w CO2 Laser to be able to mount a inline fan to extract fumes. I found a few online but most of them printed really weird (walls didn't had the same thickness and some other issues).. So i went on and designed my own, very simple design on Fusion 360. Smaller side is 4" / 100mm Outer diameter Larger side is 6" / 150mm Outer diameter I would advise using a clamp, zipties or something to secure the duct in place and minimize any leaks that can occur. depending on the tolerances of your machine and the duct itself it can be a snug fit or not. UPDATE: Tolerances improved on v5. I connected it with the 6" side directly onto the inline fan (0 leaks) and the 4" side to the tubing (0 leaks) without needing to use clamps.
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