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Enclosures & cases
KY-040 rotary encoder knob box
This is not a fixed STL. SpeakCAD generates the ky-040 rotary encoder knob box to your millimetres, you adjust it in the chat, then you download and print it.Building the 3D preview…
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Adjust
Click a part and change its numbers in the viewer, or ask the AI in the chat: wall thickness, hole size, the thing it clips onto. AI changes use plan credits.3Print
Download a watertight STL or 3MF with a Maker or Pro plan, drop it in your slicer, and print it. Small fit fixes re-download free.
Get it nowOpening the ready-made model is free. A plan covers AI changes and the download.
Example prompt
Model a KY-040 encoder box 40×40×25 mm, 7.2 mm bushing hole, 3×12 mm pin slot, plus a 30×15 mm knurled knob with 6 mm D bore.
What a ky-040 rotary encoder knob box is
A small control box for a KY-040 rotary encoder (about 32 × 19 mm board, 6 mm D shaft, M7 bushing). The box is 40 × 40 × 25 mm with a 7.2 mm bushing hole, a 3 × 12 mm slot for the pins and a matching 30 × 15 mm knob with a 6 mm D bore and knurled edge. Walls are 2 mm. Print the box upside down and the knob flat in PLA.
The EC11 encoders without the breakout board have a different footprint. Open the ready-made model in SpeakCAD for free, adjust any millimetre, then download the STL.
People also search
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Questions people ask about a ky-040 rotary encoder knob box
A small control box for a KY-040 rotary encoder (about 32 × 19 mm board, 6 mm D shaft, M7 bushing). The box is 40 × 40 × 25 mm with a 7.2 mm bushing hole, a 3 × 12 mm slot for the pins and a matching 30 × 15 mm knob with a 6 mm D bore and knurled edge. Walls are 2 mm. Print the box upside down and the knob flat in PLA.
Click Get it now on this page and sign in: you can open the ready-made model for free, and the example prompt is filled in if you want the AI to redesign it. The model renders in your browser, nothing to install. Change any millimetre in the viewer or the chat (AI changes use plan credits), then export a watertight STL or 3MF with a Maker or Pro plan when you want to print.
Start from this working example and replace any number with what you measured: Model a KY-040 encoder box 40×40×25 mm, 7.2 mm bushing hole, 3×12 mm pin slot, plus a 30×15 mm knurled knob with 6 mm D bore.
The EC11 encoders without the breakout board have a different footprint. In SpeakCAD you open the ready-made model for free, change it to your measurements, then download a file sized for the part you actually own.
No. SpeakCAD runs entirely in the browser: the chat, the 3D engine and the live viewer load in the tab. The only file you download is the finished STL or 3MF.
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