Since I knew there were no such files available, I drew my own. It's just parts that I knew I would use and not everything available. I have 55 - 60 nose cones and all standard low power and some MPR tubes and cones already drawn up. Took a pretty good while to get them up to specs, but it was worth it. All my tubes are about 3" long and I can modify them to any length I desire. Nose cones are just a matter of fitting one on the tube. I just copy one that I want and leave the original in the line-up. All my fins are usually custom, but I do have about 20 or so pre-drawn fin types which can also be modified. It's pretty easy for me to slap a design together for the most part. That is, until I get to a fin design where it can get as creative and crazy as I like. My drawings are only 2 dimensional, but that's all I need to make a stable design whether it be 2,3,4,5 or 6 fins...blah blah blah. If you're a CAD guy, you already know what I talking about.