I am also getting the 404 when I click the "Download All Files" box at the top. I did not try that route when I uploaded the files. When I download from Thingiverse, I've gotten into the habit of going to the "Thing Files" tab, below the images, 2nd to the right after "Thing Details." After uploading, I checked that I could download the .zip, the Top.stl, and the Bottom.stl (in case separate files were easier for some to work with). I apologize for the oversight.
The "Download All Files" issue may be resolved at some point in the future. In the meantime, Jintosh and mrwax, or anyone who's previously had a 404 error, will you please try the "Thing Files" workaround and see if that works?
The "Download All Files" issue may be resolved at some point in the future. In the meantime, Jintosh and mrwax, or anyone who's previously had a 404 error, will you please try the "Thing Files" workaround and see if that works?