Brackets and mounts
MQ-135 Sensor Holder Bracket
- Bounding box
- 29.8 × 29.9 × 18.0 mm
- Engine
- Precision B-rep
- Parameters
- 18
- Published
- October 22, 2026
Download
Free to download and use. See the terms.
The prompt
Design a compact, 3D-printable MQ-135 sensor holder for LABGUARD. Create an editable parametric bracket with a flat base, rounded edges, secure PCB mounting slots, cable strain relief, and large open sides for airflow. Keep the heated metal sensing head completely exposed and away from plastic, skin, and fabric. Do not obstruct pins or wiring. Use adjustable dimensions; the estimated PCB size is 18 × 38 mm but must be verified against the real board. Generate one watertight solid suitable for FDM printing.
Parameters
| Name | Value | Range |
|---|---|---|
| PCB Width | 18 mm | 10 – 45 |
| PCB Length | 38 mm | 15 – 80 |
| PCB Thickness | 1.6 mm | 0.8 – 3 |
| PCB Slot Clearance (per side) | 0.4 mm | 0.1 – 1 |
| PCB Lift Above Base | 4 mm | 2 – 10 |
| Rail Grip / PCB Length | 0.47 - | 0.2 – 0.8 |
| Rail Thickness | 4 mm | 2.5 – 8 |
| Rail Height Above Base | 10 mm | 6 – 20 |
| Base Thickness | 3 mm | 2 – 6 |
| Base Corner Radius | 3 mm | 1 – 8 |
| Base Behind Rails | 7 mm | 3 – 15 |
| Base Lip In Front of Rails | 5 mm | 3 – 15 |
| Base Edge Margin Outside Rails | 1.5 mm | 0.5 – 5 |
| Cable Passage Width | 4.5 mm | 2 – 10 |
| Strain Relief Loop Height | 12 mm | 6 – 25 |
| Portal Post / Bar Thickness | 3 mm | 2 – 6 |
| Base Mounting Slot Length | 8 mm | 0 – 16 |
| Base Mounting Slot Width | 3.4 mm | 2 – 6 |
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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