[kinghashbrown]

the way my team keeps track of things is there is a "master" computer, operated by the lead designer, who does all big changes to the robot. and anyone that works on the model copies the latest files off of the master computer, and then works based on those files (writing down all changes to what files). At the end of the work session this person must return to the lead designer and inform him/her of what subassemblies he/she changed. Two hard copies are made of each drawing, and I've kept two backups one on my external hard drive at home, and a flash drive i carry.

with this system only one computer can really work on a single subassembly. It also requires careful overseeing, or work can be lost.

this system has its flaws. but since its always been a small team of students and a few mentors that do the design it's manageable.