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.
Can you at least upload IGES or STEP files of the parts? The gear is easy to make from the DXF, but editing an STL to change the bars is a pain. I'd still prefer solidworks files even if they are a mess, but IGES or STEP would at least be better than STL.