MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
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Yeah that's what happened here too, the support in the bowl needs to be printed to ensure it doesn't collapse during the print and the support round the edges needs to be printed to protect the hinge.
Once it had printed i just pulled out the support and used a sanding sponge to sand it all down.
Hope that helps :)