MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
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I printed your mount and assembled it. I noticed that, at least for my Wilson 2, there's not much clearance between the pinion and the hotend. Here's a picture: https://drive.google.com/open?id=0ByMIutOj83VSc3EzUmtKOFNja28. Did you have this issue? Also do you have a 3D file I can modify in Autodesk Inventor?
Thanks and great design btw!