To make it eaiser for building the creo together ive started using a part naming system (a guy in my group project group made me us it, and it turned out it actually was quiet useful!) if youve got a better one your welcome to change it. naming parts: Pxxx_part_name for new revisions of parts uses a "-" then the revision number pxxx-x eg the part p101_base becomes P101-1_base P1xx top and bottom panel related parts p2xx blade related parts p3xx drive related parts p4xx internal supports p5xx external panels p6xx electronics: batteries speed controllers etc (might not be needed) p7xx .... add more as needed (your welcome to edit this note) standard parts, bolts and bearings etc can be left with there original name (they can all be changed but i normally cba Thought this system would be useful, and hope it helps