The best idea of Netherlands! Very simple design that can be used to store your UM original power supply underneath your Ultimaker. The good thing about this design is that you don't need to drill holes in the casing of the Ultimaker. And that's good because we don't want to drill holes in our beautiful Ultimaker! It just snap fits on existing holes :) I found that it was really important that this model can be print within an hour, with as less material as possible. I made this design during my internship at FABLAB. And made it in Tinkercad. The model is in the Tinkercad library ( https://tinkercad.com/things/lUDndXUSWLA ) as well, so feel free to adjust the design to your own preferences.