With the following exceptions, each machine must be constructed solely from materials provided in the kit. You may use bolts under 1 inch long as posts of pivot joints, but not as structural elements.
Students get to keep their machines intact.
For example, if your kit contains 5 constant force springs instead of 4, this does not mean you get to use all 5 in your machine. You may only use what is on this list. You must turn in the battery charger at the end of the semester.