Came across this cool looking software today that I thought may be worth looking into There is a free version(express) that only allows for 60 parts in a design. but it should do most of what we are after. Creo Elements has a modest limit of 60 parts per document. Check out the PDF for a compason (The express is the free version) http://www.ptc.com/WCMS/files/129462/en ... _TS_EN.pdf HomePage http://www.ptc.com/products/creo-elemen ... express/#3