Parametric Bolt Module - Openscad-macros Typing CST Test
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Parametric Bolt Module — Openscad-macros Code
An OpenSCAD macro (module) that generates a simple parametric bolt with customizable shaft length and radius.
module bolt(length=20, radius=3) {
cylinder(h=length, r=radius);
sphere(r=radius*1.2);
}
// Example usage
bolt(30, 4);
translate([0,10,0]) bolt(15, 2.5);Openscad-macros Language Guide
OpenSCAD Macros are reusable script blocks within the OpenSCAD CAD platform. They allow users to automate repetitive modeling tasks, create parameterized 3D models, and organize code into modular components for easier design and customization.
Primary Use Cases
- ▸Creating parameterized geometric shapes and components
- ▸Automating repetitive modeling tasks
- ▸Building modular designs for assemblies
- ▸Sharing reusable design blocks within teams or online repositories
- ▸Generating variants of a design with different parameters
Notable Features
- ▸Reusable blocks of OpenSCAD code with parameter inputs
- ▸Support for nested macros and modular design
- ▸Integrates with loops and conditional statements for advanced modeling
- ▸Improves code readability and maintainability
- ▸Facilitates design variations without duplicating code
Origin & Creator
Developed as part of the OpenSCAD project, macros have been integral since early versions to enable modular, script-based CAD modeling, inspired by functional programming paradigms.
Industrial Note
Crucial for makers, mechanical engineers, 3D printing enthusiasts, and rapid prototyping industries where parametric and repeatable 3D designs accelerate production.