Original URL: https://drive.google.com/file/d/0B6wwyazyzml-OGQ3VUo0Z2thdmc/view
You need to copy the ID from the original URL (the characters between the /d/ and /view), and use it in this URL:
https://drive.google.com/uc?export=view&id=0B6wwyazyzml-OGQ3VUo0Z2thdmc