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.
Thank you for your feedback. Fred was my first model and I've learned quite a bit since then. armb_r is not completely flat but when slicing at .2 I apparently got away with it. At a smaller layer height the discrepancy shows up more. I just uploaded a corrected armb_r_new that will print correctly.
Don't forget to post all your makes.