Did the simple design of the washer blanks on solidworks for anyone who is wanting to get them 3d printed. Come out fairly decent! Can use 3d printing websites such as shapeways or imaterialise.
http://www.filedropper.com/blank-v2stl (Happy to email or use a different file sharing method if people dont want to trust the link)
http://www.filedropper.com/blank-v2stl (Happy to email or use a different file sharing method if people dont want to trust the link)