Gears and transmission
Exploded Servo-Pin Electronics Enclosure (8 Parts)
- Bounding box
- 1060.0 × 70.0 × 35.0 mm
- Engine
- Precision B-rep
- Parameters
- 32
- Published
- September 10, 2026
Download
Free to download and use. See the terms.
The prompt
Design a compact, realistic and fully 3D-printable electronics enclosure designed to house the following components: * One SG90 micro servo motor, mounted securely with screw holes and enough clearance for the servo horn and gear mechanism. * One Arduino Nano, installed horizontally in a dedicated internal holder with mounting supports, allowing easy access to the USB port and connection pins. * Two 18650 Li-ion rechargeable cells arranged side-by-side, forming a 7.4 V battery pack, with a secure battery compartment and retention features. * A narrow mechanical slot/opening on one side of the enclosure for a metal pin/rod. The pin must be able to slide freely through the slot and be mechanically moved by the SG90 servo. * The servo horn should connect to a simple mechanical linkage or gear mechanism that converts the servo's rotational movement into linear movement of the metal pin. * Internal cable-management channels and small cable-routing openings to keep wires organized and prevent interference with the moving mechanism. * Separate mounting points for the electronic components so they cannot move or vibrate inside the enclosure. * Leave sufficient clearance around the Arduino Nano USB connector for programming without removing the board. * Provide ventilation and small access openings where appropriate, but keep the enclosure compact and protected. * Use a removable top cover secured with small screws, allowing easy access to the electronics and battery. * Rounded edges and a clean professional industrial design. * No unnecessary decorative elements. * Designed specifically for FDM 3D printing using PLA or PETG with a 0.4 mm nozzle. * Avoid supports wherever possible and use practical wall thicknesses and printable overhangs. * The final design must be mechanically functional, compact, strong and easy to assemble. Show the enclosure as an exploded 3D CAD-style product visualization, with the top cover removed so the internal arrangement of the SG90 servo, Arduino Nano, two 18650 batteries, wiring channels and sliding metal pin mechanism are clearly visible. Include realistic dimensions and mounting geometry appropriate for the actual components.
Parameters
| Name | Value | Range |
|---|---|---|
| Enclosure Length | 120 mm | 80 – 200 |
| Enclosure Width | 70 mm | 40 – 150 |
| Enclosure Height | 35 mm | 15 – 80 |
| Wall Thickness | 2.5 mm | 1.6 – 5 |
| Floor Thickness | 3 mm | 1.5 – 8 |
| Cover Thickness | 8 mm | 3 – 15 |
| Cover Screw Hole Dia | 3.2 mm | 2 – 5 |
| Vent Slot Count | 5 pcs | 1 – 9 |
| Vent Slot Width | 6 mm | 2 – 15 |
| SG90 Pocket Length | 23 mm | 15 – 40 |
| SG90 Pocket Width | 12 mm | 8 – 25 |
| Servo M2 Screw Dia | 1.6 mm | 1 – 3 |
| Nano Cradle Length | 45 mm | 30 – 70 |
| Nano Cradle Width | 18 mm | 12 – 30 |
| M3 Standoff Dia | 5 mm | 3 – 8 |
| M3 Standoff Height | 5 mm | 2 – 15 |
| Battery Bay Length | 70 mm | 40 – 100 |
| Battery Bay Width | 35 mm | 20 – 60 |
| 18650 Cell Diameter | 18.5 mm | 12 – 26 |
| Pin Rod Diameter | 3 mm | 1 – 8 |
| Pin Rod Length | 60 mm | 20 – 120 |
| Guide Rail Width | 12 mm | 6 – 30 |
| Guide Rail Height | 10 mm | 5 – 25 |
| Linkage Arm Length | 30 mm | 15 – 60 |
| Linkage Arm Width | 6 mm | 3 – 15 |
| Pin Pivot Hole Dia | 3 mm | 1.5 – 8 |
| Servo Horn Screw Dia | 2 mm | 1 – 6 |
| Cable Rail Length | 40 mm | 20 – 80 |
| Cable Rail Width | 8 mm | 4 – 20 |
| Cable Rail Height | 5 mm | 3 – 15 |
| Tie-Down Hole Dia | 3 mm | 1.5 – 8 |
| Exploded Layout Gap | 20 mm | 5 – 60 |
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.
More models
Browse the full gallery →Spur Gearbox
design gearbox
Spur Gear (12 Teeth)
Built a gear with 12 teeth
Involute Spur Gear with Keyway
Precision Involute Spur Gear with Hub and Keyway: Module (m) of 2.0 mm, 40 teeth (z), Pitch Circle Diameter (d) of 80.00 mm, 20° pressure angle (\alpha), 15.00 mm face width (b), a