Note: This is thing is not maintained on here any more, further development/support it will happen on its Youmagine page. 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.Print out two brackets (I used something like 1.2mm wall strength, 20% infill). Find a cozy place beneath your Ultimaker where the PSU will fit (towards the front worked great for me), fit it in, put the brackets on each end, mark the screw slots, drill four holes and put some of the M3 bolts from your Ultimaker kit through to secure the brackets and you're done.