Hold a box-shaped device using openGrid and Underware 2.0 to keep your cable management in check! For any given dimensions from your trusty caliper, this holder automatically figures out how many grid tiles it will need to span. There might be other options out there for mounting devices to the bottom of your desk, but this holder gives you a fast-printing, low-profile, and aesthetic option that can be used repeatedly. Not to mention the fact that you do not need to figure out connectors and such; just align these bad boys on your device and press into your appropriately-sized openGrid board. Feel free to upload designs that have worked for your devices so that other people can benefit without even having to measure!

Print recommendations (PLA): 3 walls, 15% infill, higher extrusion temp to promote layer adhesion (at least 220C), skirt, and supports at or above 60% overhang. If desired, split and rearrange the separate objects in your slicer, such as using the Mesh Tools plugin for Cura. Take caution when removing supports; carefully wiggling a screwdriver or a knife in the tree lattice works for me, but your results may vary.

Make sure you are pushing into the base rather than the top of the bracket, otherwise you risk breaking it off. As you can see in the pictures, I managed to do this on my first couple of iterations (although, that was before I increased the default thickness, and even two brackets are holding my router just fine).

Check my GitHub for the latest OpenSCAD file, which includes drawing unused grid tiles and the box in preview mode.

Inspired by gabitim's TP-Link TL-SG108 holder for openGrid

File originally based on mitufy's Parametric openGrid Snap with removal of any non-standard-snap code.