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 area between the drive gear and the stepper doesn't need any cooling. the only purpose of that fan is to cool the hot end, the heatsink for which you have removed. You might as well ditch the fan entirely, to reduce moving mass if nothing else.