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 holes in the 25.4mm motor mount version seem to be just a touch smaller than the holes in the 25.4mm bottom mount one. The bottom mount went on my pipe snug, but the motor mount ones were so tight the inside of the hole got torn off by the pipe trying to put it on. Is it possible the 25mm was uploaded instead?