Turn the unused keyholes in boltless shelves into practical hanging space.
Using 2 keyholes in the uprights this thing sits and provides a hook for things like scissors, headphones (I use 2 half shelves and a laminated MDF as a PC desk, huge desktop), pots and pans and a whole thingiverse of items.
Make your own custom 3d prints that are held up with this print.
Yes itâ€™s completely parametric so it will work with any brand of keyhole style boltless shelves
The bridge in the model might sag, as long as it minimal it should add to prints snug fitting. (Yes it works better without a perfect bridge)
Some of the pics are of the non parametric version; it has a smaller wedge in the hook but otherwise is near identical to the openSCADâ€™s uploaded stl
update(9th Jan 2013)made changes to work with Customizer
Measure your shelves boltless keyhole
Plug the 4 main measurements into openSCAD (key: small, big, spacing and thickness)
Add tolerances to your measurements for clearances.
Change the hook parameters if you need to (it will allow you do add impractical values so review the model)
Render save and print