Top-Mount Whiteboard Tray
thingiverse
This simple, top-mounted whiteboard tray is designed to hold dry-erase markers securely. It's meant to slide over the top edge of a standard whiteboard without requiring any special mounting hardware or adhesive. The brackets are specifically designed for whiteboards that are approximately 11mm thick. The one I have in mind is a relatively affordable model available at most office supply stores, so that was my design target. Here are the tray's dimensions: 200mm wide, 68mm deep, and 14mm tall (with an inner space of 200mm x 60mm x 10mm). The bracket itself measures 44mm wide, 76mm long, and just 8mm thick.
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