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.
Hi osgibson. You could try to decrease drive_gear_hobbed_radius by 2 millimeters and reprint the idler. By decreasing this value the 608-bearing is moved nearer to the hobbed gear. Just have a try at OpenSCAD and have a look how the bearing position changes accordingly to the drive_gear_hobbed_radius value. I'm looking forward to hearing from you and your results...