Four pieces of iron

grabcad

"Occam's razor states that entities should not be multiplied beyond necessity." We attempt the simplest solution - a design utilizing four identical stainless steel levers, weighing approximately 7 lbs with fasteners. The factor of safety ranges from 3 (vertical load) to 7 (horizontal). Three designs are provided: Solid, the simplest variant; Rigid, featuring additional elements for strain prevention; and Bones, a lighter alternative without stress calculations. Instructions should specify rail hole numbers for fitting insertion. Updates include a small-scale Bones structure render, advantageous due to its smooth surface and suitability for DLS or EBAM 3D printing technologies. A stress analysis (update.additonal.zip) with a safety factor of 5 under Y load direction has been added. The Rigid variant was modified with enlarged support, increasing contact area between the mounting plate and reducing stress concentrations (update rigid.zip). Solid and Bones variants are combined in solid_bones.zip. On March 25th, a BONES Support structure close to optimal (Variant BONES Voronoi3D+t-pipe) was rendered, designed for efficient 3D printing, offering lightweight, durable construction with low stress concentrations. Stress analysis was remade in English for the Rigid variant, displaying safety factors of 3 for vertical load and 7 for horizontal load (additonal.zip). The Rigid design was refined to prevent lever rotation (rigid.zip). Lastly, on March 24th, a Rigid variant was added (rigid.zip, draw_2), including additional features to prevent strut rotation.