Free 3d print plane stl file

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I figured that I might as well print the aircraft files I found online with conventional infills (hex, triangle, line, 3D gyroids etc.), a feature available with almost any slicer software out there. I managed to find plans online and was intrigued by the immense amount of detail given to the internal structure, unfortunately, I did not have access to a paid slicer software capable of slicing such complex internal structures and the free slicer I was using was capable of slicing only the external skin/structure. About two years or so ago, videos about 3D printed R/C aircrafts popped up on my suggested YouTube feed and since then I've wanted to build one of my own.

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