Bambulab: https://shareasale.com/r.cfm?b=228215... Try Onshape, the world's most capable in-browser CAD software for free for 6 months: https://Onshape.pro/d4a 3D files of the engine components: https://drive.google.com/drive/folder... I used 14x5x5 bearings inside the rotor and 42x20x12 in the ho
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