Imagine building a 3D model not by clicking and dragging, but by writing a script. That's the core idea behind CadQuery. It’s a Python library that lets you create parametric 3D models using code. Instead of manually drawing shapes in a graphical user interface (GUI), you define them with commands.

This programmatic approach has some serious advantages over traditional CAD software. Since your model is just code, you can use version control systems like Git to track changes. You can easily create complex, customizable designs by changing a few variables in your script. It makes your designs more reusable, less prone to human error, and easier to automate.

To start using CadQuery, you need to set it up on your computer. The recommended way to install CadQuery and its specialized editor, CQ-Editor, is by using a package manager like Conda. Conda handles all the complex dependencies for you, making the setup process smooth.

If you prefer using Pip, Python's standard package manager, you can install CadQuery directly. However, be aware that this method can sometimes be more challenging due to system dependencies.

Once you have CadQuery installed, you'll want a way to see your creations. That’s where CQ-Editor comes in. It’s an integrated development environment (IDE) made specifically for CadQuery.

CQ-Editor gives you everything you need in one window. It includes a code editor where you write your Python scripts, a 3D viewer that instantly renders your model as you type, and a debugger to help you find and fix errors in your code. This immediate visual feedback is incredibly helpful for learning and makes the whole process of programmatic modeling much more intuitive.