Universal, wall-mounted steel sheet holder that holds 3 sheets. I added a slight taper at the bottom of each slot to grab and hold the sheets in place. The honeycomb pattern extends through the block to the back wall. There are two 0.188 diameters hex holes in the back wall for mounting.
The orientation of the hex holes allows the part to be printed without supports (although you will need to have your printer tuned for overhangs. I needed to switch my slicer to print external perimeters first to stop the overhangs from curling up.) I also printed it with 3 perimeters to reduce dropping on the bridges. I printed it in PLA, but most any material will work.
The author marked this model as their own original creation.