Blog CategoriesChoose OneAll Categories3D Printing (1)3DX eXchanges (146)3DX Updates (8)Uncategorized (2) From Popularmechanics.com: Advanced Combustion Rotary Engine06/10/15 @ 9:27 amThis 8 pound, backpack sized, rotary engine has military as well as commercial potential. Read MoreNo CommentsSign-in to Comment
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