3D preview of Round Door Knob
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Interactive 3D model of Round Door Knob

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Round Door Knob

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Bounding box
50.0 × 50.0 × 52.0 mm
Engine
3D Printing B-rep
Parameters
5
Published
November 2, 2026

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The prompt

Create a round door knob with a diameter of 50mm, and include a square hole in the base measuring 8mm by 8mm and 30mm deep for the spindle.

Parameters

NameValueRange
Knob ball diameter50 mm30 – 100
Base collar diameter40 mm20 – 80
Square spindle size8 mm6 – 16
Spindle socket depth30 mm10 – 120
Socket clearance per side0.2 mm0 – 1

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.

Round Door Knob - Free CAD Model (STEP, STL) | TextoCAD