Exhaust duct reducer(s) for laser cutter / CNC

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Doug Baldwin

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Sep 27, 2025, 11:01:27 AM (4 days ago) Sep 27
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Hi all

We recently had our makerspace renovated including upgraded HVAC with 4 accessible flex exhaust ducts for our equipment. The installed flex exhaust duct is 6" diameter and we need to convert that to fit out machines which have differentiated exhaust duct diameters (2.5", 3", 4")

Does anyone have recommendations on either a universal or direct duct reducer you may have used or are using to do such conversions. I have some leads but was interested in hearing from anyone with recommendations that were actually using any (and in particular if they have worked well for you?)

Thanks,

--------
Doug Baldwin
Associate Director
Technology and User Services
Piscataway Public Library

Jesse D Robinson

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Sep 30, 2025, 10:55:04 AM (yesterday) Sep 30
to Doug Baldwin, k-12-f...@googlegroups.com
Perhaps a silly suggestion, but could you have some of your students model a solution in AutoCAD Fusion and 3D print the adapters?   Seems like a good opportunity for some experiential learning.

Jesse

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