The way the categories work are as follows:
- Laser: If the project is made using the laser cutter and does not fit into the other categories, then it goes here.
- Robot: If the project is a robot, then it goes in the robots category regardless of how it was made or what is in it.
- Pi: If there is a Raspberry Pi involved, and it isn't a robot, then it will go in this category.
- Miscellaneous: If a project doesn't fit into any other category, then it will go here.