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've made this thing like 4 times all with limited success. First off, infill needs to be higher! The first 3 I printed with 20% infill had the arms all snap off right away the first time I pulled them back. Secondly, you really need to have you printer resolution tuned in to a high setting to get the proper separation of the torsion arm and the lever. Once I finally got those to things down, the arm doesn't snap right off and the lever and torsion arm move freely ...not the lever won't lock the arm into the firing position. This project helped me to learn about how to manually adjust my printer resolution but at 4 attempts and still no properly working catapult I think I'm moving on.