Your technical drawings are amazing! I have separated the shoe from this drawing and uploaded it as a "shoe_only" svg (I hope you don't mind). I am also adding some thumbnails to your files -- I know, they don't look so well, because the lines are very thin -- but I don't know what to do about it. Anyway, it's a great collection and many thanks for sharing it :)

The art is good, but run it through your text editor first -- it's got an Adobe Illustrator embedded native format which doubles the filesize.