A 36 key MX keyboard based on the Horizon with an acrylic stacked case featuring multiple full coverage silicone gaskets.
Rather than building up a case of sorts with only PCB's the slabV uses the same ideas of tightly formed cutouts from the horizon but with silicone gaskets and acrylic. It also adds layers between the PCB and the switch tops, also with more gaskets, to produce an almost completely solid assembly with every mechanical junction between layers damped with a gasket.
You can see in the image above there is the PCB, with a gasket + acrylic layer below, and two more acrylic layers with gaskets above. The gaskets are the white layers, PCB is black and acrylic is clear.
Here's an image of the pcb, bottom gasket and bottom acrylic layer (still with the protective cover). These examples are defective early protoypes, but they show the combination of the extra kicad footprints from the horizon used to cut specific clearance for the underside layers.
This whole stack produces a very solid and pleasingly dampened sound which could be described as Thocky if one was so disposed! It's also about as low profile as can be with full size MX switches.
For complete build information see: