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Popular fittings › Dual-port window panel

Dual-port window panel

Two independently sized exhaust outlets on one configurable window panel. Free 3D printable.

Dual-port window panel: 3D preview at the starting sizes Open in the designer →

Opens with the sizes below. Change anything, then export 3MF, STL or STEP. Free, no account, runs in your browser.

Starting sizes

EndInner sizeConnection
Outlet A100 mm (3.94 in)Smooth sleeve
Outlet B75 mm (2.95 in)Smooth sleeve

Need another size? Every dimension is editable in the designer, in millimetres or inches.

What it is

A window insert with two hose outlets, for venting two machines through one window.

How to measure

Open the window to the gap you want and measure its width and height. Set the panel slightly smaller so it drops in. For each end, measure the hose, pipe or port it joins with calipers. If that part slides into the fitting, measure its outside diameter and keep “Measure by: Inner diameter”. If the fitting slides into a hose, measure the hose’s inside diameter and switch to “Outer diameter”. Measure twice across the circle; flexible hose is rarely perfectly round.

Print tips

Frequently asked questions

What size should I measure?
Open the window to the gap you want and measure its width and height. Set the panel slightly smaller so it drops in. For each end, measure the hose, pipe or port it joins with calipers. If that part slides into the fitting, measure its outside diameter and keep “Measure by: Inner diameter”. If the fitting slides into a hose, measure the hose’s inside diameter and switch to “Outer diameter”. Measure twice across the circle; flexible hose is rarely perfectly round.
What should I print it in?
PLA or PETG both work for dust collection at room temperature. Print in PETG or ASA if the air is warm or the part sits in the sun. Use 3–4 perimeters for an airtight wall; infill matters much less than wall count for ducts.
What hardware do I need to buy?
Nothing is required at these starting sizes: it prints in one piece. A hose clamp is optional if a hose feels loose.
Does it need supports?
The export already places every component in its recommended print orientation. Keep supports off sleeves, sockets and any sliding or tight-fit surface so they stay smooth; if your slicer asks for supports, paint them only where an outside overhang needs them.
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