4in to 3in reducer "tee" 3D model thumbnail

4in to 3in reducer "tee"

by jqhartle · via Thingiverse
FormatSTL
CategoryOther
LicenseCC BY-SA
Triangles11.6k
UploadedApr 6, 2026
⬇ 1 downloads 👁 11 views

Description

Designed this for fume extraction for my resin printer and K40 laser. Made a window insert for a 4" in-line exhaust fan and this slots over the back and tee's it into two 3" legs. Printed mine in PETG because it exhausts smoke from a laser, but if its just moving air, PLA may be fine.
fume extraction HVAC

Originally published on Thingiverse