I really liked the original PSU Mount that I derived this from, but the upgraded design seemed a bit like a Volvo to me.So I sucked it into Openscad and matched up the screw holes, adding in the barbell design I found on a different mount.This PSU mount is stable and strong, but make sure the infill is relatively high for the thinner X configuration.Here's a video of the build:http://m.youtube.com/watch?v=F2RXcn7tK4kIf you intend to mount your PSU on the typical left rear side (or the right front side) of your Prusa Mendel printer, download the STL file and print it out. Be careful not to home the x-axis at the end of the print because it's relatively tall.If you want to mount the PSU on the right rear side (or the left front side - unusual, but with reprap you never know), then uncomment the mirror(1,0,0) command near the start of the .scad file.I found two #8 screws, about 1/2" long, that fit into the holes in the PSU.