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've only ever seen the one version of the belt mounting on the MPCNC. These replace the zip ties for mounting and tensioning the belts as shown on the main MPCNC project itself. Do you have a picture of the original corner block?