MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Now Customizer works but when generating the thing it fails in the queue with the description, already mentioned by others:
Furthermore the given link point to the .scad file of my model that is correctly downloadable... Why "403: Forbidden"???
Please fix Customizer, it's ages it isn't working! It was so nice to customize from thingiversse models... A killer feature you're "killing". :(