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.

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The lead screws are placed 1mm under the acrylic part where the hole is. The hole is only there to make it possible to mount the lead screws to the coupler. The threaded screw shafts can sway. That has no effect on the quality of the print.