A desk clamp for your soldering spool and cleaning bin to make the most of your desk space. I made one of these with a rectangular desk edge at first (which is also available; rectangular tab) so it would be a flush edge with the desk but the first time I twisted the screw in place it snapped where that point met the other surface. SO I rounded it to give it more strength. Note that I also only printed it at 15% infill the first time around so that could have had something to do with it.
The author marked this model as their own original creation.