Hi guys,
Just to follow up on this thread - today we’ve updated the Zbrush exporter plugin up to 4R7 and it’s compatible with both 32-bit and 64-bit versions on OS X and Windows! (At last!)
You can also now upload in draft mode, letting you tweak all your settings on Sketchfab before publishing your model.
All the details are on our blog :http://blog.sketchfab.com/post/133011099594/update-zbrush-exporter-v3
Looking forward to seeing more of your work!
-the Sketchfab team 