The file '4-3in Exhaust Adapter/reducer 3D Printer Model' is (stl) file type, size is 65.6KB.
There does not seem to be an adapter/reducer that allows a 3 in diameter exhaust hose to fit a 4 in diameter duct? for window exhaust vents. This is made for those that have a laser cutter and don't want to spend money on a exhaust box. this was designed to be multilateral and will hopefully fit the verity of 4 in vents on the market.
My window vent kit: https://www.amazon.com/dp/B0C3V9B7L3?psc=1&ref=ppx_yo2ov_dt_b_product_details
my 1st release
adapter_body_3in.stl | 119.8KB | |
adapter_end_4in.stl | 133.0KB |