Truss System

thingiverse

Modular Truss-Beams is actually just a test rig to get inspiration and a physical response. Assembled Beams weigh around 380g per meter (rods + PLA). Each element size is 50x50x50. One truss element weighs 10g, one m3 threaded rod is 42g/m, and one washer+nut weighs 1.5g. The total weight of the beam (m_b) equals (4 x 42g/m) + (20/m x 10g) + (8/m x 1.5g). This comes out to 168g/m + 200g + 12g/m, making a total of 380g/m. To assemble it, place four threaded rods through the holes along the edges and tighten washers and nuts evenly. The beam has a relatively high mechanical load capacity despite not being stress-tested. A two-sided pivoted beam shown in the photo carries a 10kg load in the middle of an 0.85m long element bond, but deforms slightly. For extra weight savings, consider using tensile loads made from nylon filament or similar materials.