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.

Download Now

Report as inappropriate

We'll, actually it depends on the idler. Some of the idlers have an 8 mm "shaft" and the other's a 6 mm shaft.

Still, thanks for the design. Mine is not working yet...My bowden connector has a 9 mm screw thread, so I need to re-mix this first. But I'm getting there...