Parametric Box Generator

Create fully customizable 3D printable boxes with adjustable dimensions, wall angles, and corner styles — all from one simple OpenSCAD script.

This generator is designed to be beginner-friendly while still offering advanced flexibility for experienced makers.

What Makes This Box Special?

Unlike a standard rectangular box, this model allows you to independently control:

• the size of the bottom,
• the size of the top,
• the wall angle,
• the corner shape,
• and the overall proportions.

Because of this, the box can:

• expand upward,
• narrow upward,
• or stay perfectly vertical.

This gives you far more design freedom than a typical container generator.

Main Features

Fully Parametric

Every important dimension can be customized:

• width,
• length,
• height,
• wall thickness,
• bottom thickness,
• corner radius,
• top dimensions.

Adjustable Wall Angles

The top dimensions are independent from the bottom dimensions.

This means the box does not need to stay rectangular from top to bottom.

You can create:

• straight walls,
• outward sloped walls,
• inward sloped walls.

Perfect for:

• storage trays,
• stackable containers,
• organizers,
• technical parts,
• decorative boxes,
• workshop bins.

Multiple Corner Styles

You can choose between three corner types:

Rounded Corners

Smooth and modern appearance.
Great for:

• clean aesthetics,
• easier cleaning,
• softer edges.

Chamfered Corners

Angled technical-style corners.
Great for:

• mechanical designs,
• industrial appearance,
• faster printing compared to fully rounded corners.

Square Corners

Classic sharp rectangular corners.
Great for:

• maximum internal volume,
• simple geometric designs,
• traditional box shapes.

Parameter Overview

Bottom Dimensions

Defines the outside size of the box base.

You control:

• bottom width,
• bottom length.

Top Dimensions

Defines the outside size of the top surface.

The top can be:

• larger than the base,
• smaller than the base,
• or exactly the same size.

This directly controls the wall angle.

Inner Height

Defines the usable internal depth of the container.

Wall Thickness

Controls the thickness of all side walls.

Thicker walls:

• improve strength,
• increase durability,
• increase material usage and print time.

Bottom Thickness

Controls the thickness of the bottom surface.

A thicker bottom improves rigidity and strength.

Inner Corner Radius

Controls how rounded the internal corners are.

Benefits include:

• smoother appearance,
• improved print flow,
• easier cleaning,
• reduced stress concentration.

The outer corner radius is calculated automatically.

Smoothness Quality

Controls how smooth rounded surfaces and curves appear.

Higher values:

• create smoother geometry,
• improve visual quality,
• increase rendering complexity.

Built-In Safety Features

The script automatically prevents invalid input values.

Users cannot enter:

• negative dimensions,
• zero wall thickness,
• invalid heights,
• invalid corner radii.

This helps avoid broken geometry and printing problems.

Advantages of This Design

Perfectly Centered Geometry

The top and bottom always remain aligned around the same center point.

This guarantees:

• symmetrical wall angles,
• balanced geometry,
• predictable scaling.

Beginner Friendly

The parameters are simple and easy to understand.

You can quickly modify the design without advanced CAD knowledge.

3D Printing Optimized

The model is designed for reliable FDM printing with:

• clean wall transitions,
• strong geometry,
• efficient slicing.

Highly Flexible

This is not limited to a simple rectangular box.

By adjusting top and bottom dimensions independently, you can create:

• tapered containers,
• pyramid-like shapes,
• expanding trays,
• compact storage systems,
• custom industrial components.

Example Use Cases

• Workshop organizers
• Storage trays
• Electronics housings
• Desk organizers
• Parts containers
• Decorative planters
• Stackable bins
• Custom technical enclosures

Recommended Workflow

1. Set bottom dimensions.
2. Define top dimensions.
3. Choose the height.
4. Set wall thickness.
5. Select corner style.
6. Adjust corner radius.
7. Render and export the model for printing.

Final Notes

This generator combines:

• simplicity,
• flexibility,
• clean geometry,
• and print-ready design.