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.
You can try printing them larger. My advice is making the male end about .02 smaller than the female. If you have a way to measure the bearings, over size both accordingly. Also try a Dremel. Hope this helps, smokin0137