[Blind-sysadmins] 3D printing a floor plan

I am helping to organize a convention where many of the attendees will be blind. I was hoping to get a 3D map of the hotel made. The first estimate I get was for over $3,000. I got a copy of the floor plan of the hotel from the hotel itself. It is in a PDF document. I was thinking that if I could just find some cheap way to print it as raised lines, I could add braille labels myself. Anybody know of a service that prints raised line drawings from a PDF document? -- John G. Heim; jheim@math.wisc.edu; 608-263-4189