I wanted to mount my PSU to the side of my mendelmax, but couldn't find any mounts that suited me. My criteria were:No need to use expensive t-nuts you insert from the side of the extrusion, and no disassembly.Unobtrusive and cheap (in terms of plastic.)Print. Hold in place, bolt through the hole to the PSU with a 30mm M4 bolt, through a washer.I was surprised at how well just two of these hold the psu, if you want to you can slightly wobble the top, but it's certainly good enough for me.