The creation of the object started with the Fusion 360 design of all the components of the object. Then we extrapolated the mechanism and started to work on it by performing numerous tests to find the correct shape and the most linear movement possible. After that we worked on locking the axes of freedom of the mechanism going to lock two of them in order to allow through the rotation of the outer ring a linear movement in a single axis. After developing a working mechanism we developed the wheel useful to the user to control the mechanism and the connection between the two rings. For the connection we used a GT2 belt with a width of 6mm and a variable length. After finishing the tests on the mechanism, we turned our attention to the design of our object, so we made all the components necessary to produce the product. The object consists of 3D printed parts, PMMA components and other wooden parts. For the former, we used the Prusa i3 mk3 fdm 3D printer, for the PMMA and wooden components we used the Lux Guyer laser cutter, and for the 18 mm thick wooden centre piece we used the SHOPBOT CNC machine. Special attention should be given to the three physical buttons that control the smartphone, which were 3D printed with a special ProtoPlant conductive filament, allowing us to control the touchscreen with a physical object. After creating all the pieces, we assembled them using M4 flat head screws, and for the phone cover we used M2 wood screws and magnets to make it easy to join the two pieces. To make the disc, we used the laser cutter to cut a piece of PMMA and then cut the shapes needed to cover the NFC tag and colour the back of the disc with the Roland GS-24 vinyl cutter. We then created the covers with Adobe Illustrator and printed them using a plotter.