Popular fittings › Low-profile oval elbow

Low-profile oval elbow

An oval swept bend for installations with limited height. Free 3D printable, every dimension adjustable.

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

Starting sizes

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

What it is

A bend in flattened oval duct, for runs under shelves, benches or ceilings.

How to measure

For a rectangular end, measure the inside width and height of the duct or opening it joins, or its outside size if the fitting slides inside it.

Print tips

• 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.
• Use 3–4 perimeters for an airtight wall; infill matters much less than wall count for ducts.
• Bend radius is measured to the centre line; 1–1.5× the duct size is a good balance.

Frequently asked questions

What size should I measure?

For a rectangular end, measure the inside width and height of the duct or opening it joins, or its outside size if the fitting slides inside it.

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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