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 had the same issue. The wheels are to loose to spin freely under the load of a full spool. I adjusted the wheels a little with the standard axle pins but I made a 'wheel-hub' for a nylon bearing and made new wheels