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.
Right! If it makes sense for you, you could add a fifth LED in serial, but that's only true with 2 x 9 V batteries. The switch should then be from + of the battery to the wire of the resistors