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.
I have used 1.5mm thick in my handles although they have been fitted in my remix (https://www.thingiverse.com/thing:2876499) so are hidden.
They work fine. 0.5mm is pretty negligible in terms of clearances and neos are so strong they don't have to make contact to work!