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.
When using dual 5015 fans, you can absolutely run the speeds as low as 15% My uses range in the 20%-50% power. This is the point of the dual fan setups, to get enough air through the ducts and still be silent! I will use as much as 50% power (per fan) when doing long bridges. Many times I have done 150mm bridges or more with no sagging! The filament is cooled immediately so that you can get perfect overhangs and bridges.