The carburetor itself isn’t 3D printed (although not from lack of trying) — it’s on loan from a weed eater, and is helping to solve a problem with the fuel-air mixture of his original design.

NASA’s GRX-810 alloy endures extreme heat and stress, enabling stronger, longer-lasting 3D-printed engine parts.

The previously used Rutherford engine passed qualification tests and is set to make history as the first 3D-printed engine to reach space for a second time.