I was trying to find again this post, so I keyed in "ldcad tread long" in the search field that returned nothing (though all these words ARE in the post). Of course I didn't remember the exact words used so I tried many variants, without any success. Finally I called Google to the rescue, and "ldcad tread long site:ldraw.org" cheerfully gave me the right post (I tried variants there too and many of them gave the right answer despite the exact words were not in the post...)
Ideas to improve?
Ideas to improve?