Brackets and mounts
Pencil Box with Hinge and Accessories
- Bounding box
- 220.0 × 93.0 × 50.0 mm
- Engine
- Precision B-rep
- Parameters
- 19
- Published
- September 2, 2026
Download
Free to download and use. See the terms.
The prompt
Create a functional, parametric CAD pencil box based on the attached image. Keep it a rectangular automotive-inspired hard case, NOT a car. Approx. 220×90×45 mm. Make the lower body and lid hollow, with one large completely empty main storage cavity and no internal compartments. Add a real functional 3/5-barrel hinge with removable pin and ~110° opening, plus a magnetic/snap closure. Add a small separate electronics cavity for a battery, LED wiring and switch, with a removable access cover. Add hidden 3–4 mm wiring channels leading to recessed front and rear LED pockets, with removable diffuser openings. Add a small exterior switch opening. Keep all geometry clean, low-poly CAD/B-Rep and FDM-printable with 2.5–3 mm walls and realistic clearances. No electronics modeled—only the empty spaces/mounts for them
Parameters
| Name | Value | Range |
|---|---|---|
| Box Length | 220 mm | 150 – 300 |
| Box Width | 90 mm | 60 – 150 |
| Box Height | 45 mm | 30 – 80 |
| Wall Thickness | 2.5 mm | 2 – 3 |
| Hinge Pin Diameter | 3 mm | 2 – 5 |
| Hinge Barrel Diameter | 6 mm | 4 – 10 |
| Hinge Barrel Length | 12 mm | 8 – 20 |
| Hinge Barrel Count | 3 | 3 – 5 |
| Magnet Diameter | 6 mm | 4 – 10 |
| Magnet Depth | 2 mm | 1 – 4 |
| Electronics Cavity Length | 60 mm | 40 – 100 |
| Electronics Cavity Width | 40 mm | 30 – 80 |
| Electronics Cavity Depth | 10 mm | 5 – 20 |
| LED Diffuser Length | 40 mm | 20 – 60 |
| LED Diffuser Width | 10 mm | 5 – 20 |
| LED Diffuser Height | 5 mm | 3 – 10 |
| Switch Button Length | 10 mm | 5 – 20 |
| Switch Button Width | 10 mm | 5 – 20 |
| Switch Button Height | 5 mm | 3 – 10 |
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 →Trumpet Lyre Mount Main Body
A single 3D mechanical CAD part for a trumpet music lyre mount (Main Body with Paddle). Geometry details: 1. A 18mm-wide semi-cylindrical clamp arc for a 28mm diameter cylinder, w
UAV Ogive Nose Cone
Design a watertight, 3D-printable aerodynamic nose cone module for a fixed-wing tactical UAV, optimized for printing in Carbon Fiber Filled PETG (PETG-CF). The base of the nose con
Flat-Strap Reel Spool
Create a 3D model of a custom flat-strap reel spool for a home plate housing cavity. Geometry: - A reel spool consisting of two parallel circular outer flanges connected by a cent