Adjustable shelf supports

I designed these shelf supports for adjustable shelving for my workbench. They use 1/4" (6mm) MDF as the shelves. The supports are 11.5" deep, so they work well with 12" deep shelves. Width really only matters for how much the MDF flexes under the weight of whatever is on it; mine are 20.5" apart and the MDF holds up fine but does flex a bit. Each panel is 11" high but they can be stacked as high as needed; the photos here show three panels stacked above each other on each side.

I designed these in OpenSCAD, and the original designs are available at https://github.com/jantman/openscad-workbench-design/tree/master/shelf_support_3d_print