Partmaximum is a way of finding the smallest number of parts needed to make something. For example, if you wanted to build a robot, you would need lots of different parts like motors, wheels and electronics. Partmaximum helps you figure out the smallest number of parts needed so that the robot still works. The way it works is it finds the biggest pieces of each part needed. So for the robot example, it would figure out the largest motor and wheel size that you need. This makes sure that you don't buy parts that are too small for your project and instead just buy the biggest pieces you need.