Before we can build physical robots, we need a digital blueprint. That’s where CAD (Computer-Aided Design) comes in. CAD helps us design and visualize mechanical parts, enclosures, and entire robot bodies before we create them in the real world.
What is CAD?
CAD stands for Computer-Aided Design. It refers to software used to create precise drawings and 3D models of parts, systems, and structures. In robotics, CAD helps us design parts that fit together perfectly and function as intended.
Why is CAD important in Robotics?
It allows you to visualize your robot before building it.
You can measure, modify, and share parts easily.
Essential for 3D printing and laser cutting workflows.
Helps in testing and improving your design through simulation.
Examples of What You Can Design with CAD:
Sensor holders and mounts
Robot chassis
Gears and linkages
Battery compartments or protective enclosures
Popular CAD Tools for Beginners
Tool
Type
Recommended For
Platform
TinkerCAD
Web-based, drag-and-drop
Absolute beginners, school students
Browser (no install)
Fusion 360
Advanced parametric design
Intermediate to advanced users
Windows, macOS
FreeCAD
Open-source CAD platform
Tech-savvy learners
Windows, macOS, Linux
In this course, we will begin with TinkerCAD, a beginner-friendly, free web-based tool ideal for learning the basics of 3D design for robotics. You don’t need to install anything—just a browser and your imagination!