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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I see what you mean now. Indeed I do not suck in air. Basically the cooling comes from circulating the air right over the drivers. My pi does not get hotter then 48 degrees C (which is not hot at all) and the steppers have never shut down because of overheating, not even on two day prints. I do have heatsinks on the drivers but also on the controllers of the mks and pi.