This tutorial walks through how to contruct a Toy Brick using the BlocksCAD web software.
You can find the online version at:
https://www.blockscad3d.com/editor/
BlocksCAD is on Open Source CAD system that uses block based building as it's front end. This is a great fun way to get started in CAD.
The "Engineering Worksheet" for this can be found at:
https://www.teacherspayteachers.com/P...
A copy of the .xml file can be found at:
https://github.com/mathcodeprint/bloc...