I wanted to mount the PSU of my Ultimaker underneath it to get it out of the way. This is the bracket I designed for that.  I included the source file (OpenSCAD) so you can easily adjust the dimensions in case you want to use the design with some other PSU (or whatever else).  It's also available on Github: https://gist.github.com/foosel/6583003Originally hosted here: http://www.thingiverse.com/thing:151699, now migrated for good