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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Adding weight will help no different to spinners with metal roller bearings. .. but in this case the difference will not be great. The single most important thing is to apply a good silicone lubricant to all surfaces that run against each other.