A keyboard mount designed to attach to 1530 aluminum extrusion. Attaches using just a single screw and T-nut per side. It's reversible, so it can be mounted either on the front of the extrusion (as pictured) or on the rear.
I've been using these on my flight sim rig for over a year with no issues or structural failures, even with plain PLA.
May also work on 2040 extrusion, but has not been tested by me.
My example was printed on an Ender 3 V2 using a .6mm nozzle and .24mm layer height with 15% infill.
The author marked this model as their own original creation.