Brackets and mounts
Modular Solar Chassis Box with Internal Mounting Tiers
- Bounding box
- 120.0 × 120.0 × 158.0 mm
- Engine
- Precision B-rep
- Parameters
- 52
- Published
- November 11, 2026
Download
Free to download and use. See the terms.
The prompt
Design a parametric 3D printable chassis box with internal mounting structures and a removable top lid. Outer dimensions: 12.0 cm width, 12.0 cm depth, 15.0 cm height. Wall thickness: 0.3 cm uniformly. Internal Mechanical Perks & Brackets: 1. Battery Bay (Bottom Level): A recessed lower tray measuring 9.2 cm x 6.7 cm x 2.7 cm with 0.2 cm retaining lips to secure a LiFePO4 battery pack, including cable routing slots leading to the upper boards. 2. BMS & MPPT Standoff Tier (Lower-Mid Level): Four M2.5 threaded mounting bosses spaced at 7.2 cm x 4.2 cm grid pattern, positioned 3.2 cm above the internal floor. 3. Compute Board Standoff Tier (Upper-Mid Level): Four M2.5 threaded mounting bosses spaced at 9.2 cm x 7.2 cm grid pattern, positioned 6.0 cm above the internal floor. 4. Active Cooling Fan Duct & Bracket: A dedicated 4.0 cm x 4.0 cm internal mounting frame with four M3 screw holes (3.2 cm x 3.2 cm spacing) aligned directly behind the side louvers for a 4010 cooling fan. 5. Passive Heatsink Clearance: A central vertical clearance zone measuring 6.5 cm x 6.5 cm x 3.0 cm centered directly above the compute board layer. Exterior Features: 1. Top Solar Recess: Recessed top frame measuring 12.0 cm x 12.0 cm x 0.8 cm with a flush center cutout measuring 11.0 cm x 11.0 cm x 0.4 cm deep. 2. Side Louver Vents: Two opposite side panels feature 45-degree angled louvers covering an 8.0 cm x 9.0 cm area. 3. Port & Antenna Cutouts: One 1.6 cm x 0.9 cm USB-C port cutout on the lower side panel and two 0.65 cm circular holes on the top rear panel for SMA antenna bulkheads. 4. Base Sockets: Four bottom corner sockets measuring 1.5 cm diameter x 0.6 cm depth for rubber feet.
Parameters
| Name | Value | Range |
|---|---|---|
| Outer Width | 120 mm | 60 – 300 |
| Outer Depth | 120 mm | 60 – 300 |
| Body Height | 150 mm | 60 – 300 |
| Wall Thickness | 3 mm | 1.2 – 6 |
| Base Thickness | 12 mm | 4 – 30 |
| Compute Tier Grid X | 92 mm | 20 – 200 |
| Compute Tier Grid Y | 72 mm | 20 – 200 |
| Compute Boss Diameter | 6 mm | 3 – 12 |
| Compute Tier Height | 60 mm | 10 – 140 |
| M2.5 Pilot Hole Dia | 2.5 mm | 1.6 – 4 |
| Pilot Hole Depth | 6 mm | 2 – 20 |
| BMS Tier Grid X | 72 mm | 20 – 200 |
| BMS Tier Grid Y | 42 mm | 20 – 200 |
| BMS Tier Height Above Floor | 32 mm | 5 – 120 |
| BMS Boss Diameter | 6 mm | 3 – 12 |
| BMS Pilot Hole Dia | 2.1 mm | 1.2 – 4 |
| BMS Pilot Hole Depth | 5 mm | 2 – 20 |
| Battery Tray Width | 92 mm | 20 – 250 |
| Battery Tray Depth | 67 mm | 20 – 250 |
| Battery Tray Height | 27 mm | 5 – 100 |
| Tray Retaining Lip Thickness | 2 mm | 1 – 6 |
| Cable Routing Slot Width | 10 mm | 3 – 40 |
| Cable Routing Slot Height | 8 mm | 2 – 30 |
| Fan Frame Size | 40 mm | 20 – 120 |
| Fan Bracket Thickness | 3 mm | 1.5 – 8 |
| Fan Hole Spacing (M3) | 32 mm | 10 – 100 |
| Fan Screw Hole Dia | 3.2 mm | 2 – 6 |
| Fan Airflow Bore Dia | 36 mm | 10 – 110 |
| Fan Centre Height | 75 mm | 20 – 200 |
| Louver Field Width | 80 mm | 20 – 200 |
| Louver Field Height | 90 mm | 20 – 200 |
| Louver Field Bottom Z | 30 mm | 5 – 250 |
| Louver Count | 8 mm | 2 – 30 |
| Louver Pitch Angle | 45 deg | 10 – 75 |
| Louver Slot Thickness | 3 mm | 1 – 10 |
| Louver Cut Depth | 8 mm | 4 – 25 |
| USB-C Cutout Width | 16 mm | 5 – 40 |
| USB-C Cutout Height | 9 mm | 3 – 30 |
| USB-C Centre X | 35 mm | -200 – 200 |
| USB-C Centre Z | 30 mm | 5 – 250 |
| SMA Antenna Hole Dia | 6.5 mm | 2 – 20 |
| Antenna Hole Spacing | 50 mm | 10 – 200 |
| Antenna Hole Height | 130 mm | 20 – 280 |
| Foot Socket Inset | 10 mm | 5 – 60 |
| Foot Socket Diameter | 15 mm | 4 – 40 |
| Foot Socket Depth | 6 mm | 1 – 20 |
| Lid Width | 120 mm | 40 – 300 |
| Lid Depth | 120 mm | 40 – 300 |
| Lid Thickness | 8 mm | 3 – 30 |
| Solar Panel Cutout Width | 110 mm | 20 – 290 |
| Solar Panel Cutout Depth | 110 mm | 20 – 290 |
| Solar Panel Recess Depth | 4 mm | 1 – 25 |
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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