An arched cubical wall holder, designed for plate-topped cubicles. I made this mainly for holding white boards and smaller signs, but it could be used for just about anything that has a standard mounting slot.

Update: Added another hook with the holder knob rotated 90°, for those with side-slotted boards.

101Hero

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20%

Note that infill is less important due to the design of the thick holder edge. The edge has forced built-in walls across the print axis, making that part stronger than a heavier infill alone could achieve.