Brackets and mounts
Rectangular Enclosure with Screw-On Lid
- Bounding box
- 110.0 × 74.0 × 37.9 mm
- Engine
- Precision B-rep
- Parameters
- 29
- Published
- October 24, 2026
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The prompt
A rectangular electronics enclosure box with a separate lid. Outer dimensions: 100mm long × 70mm wide × 35mm tall. Wall thickness: 2.5mm uniformly. Lid: flat plate 104mm × 74mm × 3mm, with a 2mm recess on the underside that fits inside the box opening. Four M3 screw holes in lid corners, matching corner bosses inside the box. Inside the box base: four raised cylindrical bosses at the corners, 6mm diameter × 8mm tall, each with a 3mm tapped hole for M3 screws. Two additional bosses inside: 6mm diameter × 5mm tall, spaced 55mm apart lengthwise, 3mm tapped holes — for mounting ESP32 DevKit. On one side face: two rectangular ventilation slots, each 20mm wide × 10mm tall, spaced 15mm apart, with 2mm thick ribs between them. On the opposite side face: one 8mm diameter circular cable entry hole, centered. A small 3mm thick tab next to the hole for strain relief (cable tie point). All sharp edges: 0.5mm fillet. Material: PLA for 3D printing.
Parameters
| Name | Value | Range |
|---|---|---|
| Outer length (X) | 100 mm | 40 – 300 |
| Outer width (Y) | 70 mm | 30 – 250 |
| Outer height (Z) | 35 mm | 15 – 150 |
| Wall / floor thickness | 2.5 mm | 1.2 – 8 |
| Edge fillet radius | 0.5 mm | 0.1 – 2 |
| Boss diameter | 6 mm | 3 – 16 |
| Corner boss height | 8 mm | 2 – 30 |
| ESP32 boss height | 5 mm | 2 – 30 |
| Corner boss inset from outer edge | 7 mm | 4 – 20 |
| ESP32 boss spacing (along X) | 55 mm | 20 – 90 |
| M3 tapped hole (tap drill) | 2.5 mm | 1.5 – 4 |
| Vent slot width (Y) | 20 mm | 5 – 60 |
| Vent slot height (Z) | 10 mm | 3 – 30 |
| Rib between the two slots | 2 mm | 1 – 10 |
| Vent slot centre height | 17.5 mm | 5 – 34 |
| Cable entry hole diameter | 8 mm | 3 – 25 |
| Cable hole centre height | 17.5 mm | 5 – 34 |
| Strain-relief tab thickness (Y) | 3 mm | 1 – 8 |
| Tab protrusion (X) | 8 mm | 2 – 25 |
| Tab height (Z) | 14 mm | 5 – 35 |
| Tab offset from cable hole | 7 mm | 2 – 25 |
| Cable-tie window width (X) | 4 mm | 1 – 10 |
| Cable-tie window height (Z) | 6 mm | 1 – 14 |
| Lid length (X) | 104 mm | 40 – 320 |
| Lid width (Y) | 74 mm | 30 – 260 |
| Lid thickness | 3 mm | 1.5 – 10 |
| Underside recess depth | 2 mm | 0.5 – 6 |
| Recess clearance vs opening | 0.5 mm | 0 – 2 |
| M3 clearance hole diameter | 3.2 mm | 2.5 – 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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