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 ...
Many renovated buildings replace wood and masonry structural elements with steel. The replacement of heavy wooden roof and floor joists with the lighter steel open-web bar-truss joists is a common ...
When building post and beam in straw bale, what if I substitute concrete block columns for the wooden posts? Will they draw moisture into the straw? They could. However, the usual practice is to wrap ...