At first glance, an I-beam looks flimsy compared to a solid chunk of steel — but its geometry is what makes it powerful. Most of the strength in a beam comes from how far the material is placed from ...
Need a steel beam? You can 3D print PLA beams that are as strong as a steel beam of equivalent weight according to [RepRap]. The Python code for FreeCAD generates a repeating structure especially well ...
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