Enclosures and housings
M5StickS3 Speaker Acoustic Waveguide Cap
- Bounding box
- 13.0 × 9.4 × 2.8 mm
- Engine
- Precision B-rep
- Parameters
- 15
- Published
- September 20, 2026
Download
Free to download and use. See the terms.
The prompt
Redesign from scratch. This is NOT a horn, megaphone, funnel or tube. Create a tiny low-profile passive acoustic waveguide for the built-in speaker of an M5Stack M5StickS3 (48×24×15 mm, 8Ω 1W cavity speaker). The speaker sound exits through THREE very small irregular/rounded-rectangle openings located very close together. Cover ONLY this tiny speaker-opening area. Sound must travel in the SAME direction as it exits the device. Do NOT turn the sound 90 degrees. Immediately combine the three openings into one slightly larger forward-facing acoustic outlet using a VERY SHORT smooth curved transition. The outlet must NOT be much larger than the three-hole area. Target size: about 10–14 mm long, 7–10 mm wide, maximum 2.5–3 mm high. No long channel. No T shape. No large chamber. No narrow exit. No sharp corners. All exterior edges and acoustic surfaces must be rounded/smooth. Add a very thin perimeter flange for silicone adhesive. Pocket-friendly, extremely compact, FDM printable PLA/PETG. Generate STL only.
Parameters
| Name | Value | Range |
|---|---|---|
| Speaker Hole Cluster Length | 7 mm | 4 – 10 |
| Speaker Hole Cluster Width | 3.4 mm | 2 – 6 |
| Inlet Margin Around Holes | 0.8 mm | 0.3 – 2 |
| Outlet Length | 6.4 mm | 3 – 9 |
| Outlet Width | 3.2 mm | 1.5 – 5 |
| Outlet Corner Radius | 1 mm | 0.2 – 1.4 |
| Overall Height (Max Protrusion) | 2.8 mm | 2 – 3 |
| Adhesive Flange Thickness | 0.7 mm | 0.4 – 1.2 |
| Ceiling / Throat Length | 0.9 mm | 0.5 – 1.5 |
| Acoustic Wall Thickness | 1.2 mm | 0.8 – 2 |
| Exposed Glue Ledge Width | 1 mm | 0.6 – 2 |
| Plan Corner Radius | 2.5 mm | 1 – 4 |
| Top Edge / Outlet Lip Radius | 0.35 mm | 0 – 0.6 |
| Inner Throat Flare Radius | 0.3 mm | 0 – 0.6 |
| Flange Ledge Radius | 0.25 mm | 0 – 0.45 |
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.
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