Why i can't upload my project?
After I select files to upload my project, there's nothing happen...
Whether the internet is too slow?
Check your browser and supporting java!..
If you do everything according to http://help.grabcad.com/article/117-how-do-you-upload-a-model,
but the problem is not out, then write to support http://help.grabcad.com/article/117-how-do-you-upload-a-model#contactModal (find a link at the bottom of the page)