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.
Simply wire them in parallel. Red to Red, and Black to Black. As your Ender 3 is a 24v system you will want two 24v sealed bearing 5015 radial fans. There is plenty of power to drive two fans from the one fan power port.