Enclosures and housings
WearCare Bottom Shell — Underside Optical & Charging Openings
- Bounding box
- 75.0 × 50.0 × 8.0 mm
- Engine
- Precision B-rep
- Parameters
- 24
- Published
- November 3, 2026
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The prompt
Parametric bottom enclosure for WearCare. Derived to share the supplied top STEP footprint (75x50 mm) and orientation, but exact mating interface remains subject to FreeCAD verification. Includes a true through-aperture for MAX30102 optical path and two underside pogo through-bores; no side-wall charging holes. Component envelopes are placed without overlap. The supplied 60x25 battery, 26x17 TP4056 and 21x16 sensor cannot fit in the reference 67x42 cavity side-by-side with independent 1.5mm clearances: this model uses a vertical stacked/offset arrangement only as a provisional layout and calls for dimensional verification.
Parameters
| Name | Value | Range |
|---|---|---|
| Outer length | 75 mm | 70 – 80 |
| Outer width | 50 mm | 45 – 55 |
| Bottom shell height | 8 mm | 6 – 10 |
| Wall thickness | 2 mm | 1.5 – 2.5 |
| Skin-side floor thickness | 1.8 mm | 1.2 – 2.2 |
| Outer corner radius | 8 mm | 5 – 10 |
| Optical window X size (provisional) | 8 mm | 5 – 12 |
| Optical window Y size (provisional) | 8 mm | 5 – 12 |
| Sensor center X | 0 mm | -5 – 5 |
| Sensor center Y | -10 mm | -15 – -5 |
| MAX30102 board length | 21 mm | 18 – 24 |
| MAX30102 board width | 16 mm | 14 – 18 |
| Pogo contact center pitch | 2.5 mm | 2 – 3 |
| Pogo bore diameter (provisional) | 1.8 mm | 1.2 – 2.5 |
| Pogo pair center X | 18 mm | 12 – 22 |
| Pogo pair center Y | -10 mm | -18 – -5 |
| Battery length | 60 mm | 55 – 65 |
| Battery width | 25 mm | 22 – 28 |
| Battery thickness | 6 mm | 5 – 8 |
| TP4056 board length | 26 mm | 20 – 28 |
| TP4056 board width | 17 mm | 15 – 19 |
| MAX30102 board thickness | 3.3 mm | 2.5 – 4 |
| Fastener boss outer diameter | 4.5 mm | 4 – 6 |
| Fastener pilot diameter | 2 mm | 1.5 – 2.5 |
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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