These models are part of the "KontinuumLAB Instrument Kit" project. This is the only fully printed instrument in the K.L.I.K. collection. It is designed to be more or less the minimum size which will fit the necessary components. It uses capacitive keys, and also contains one of the 3d-printed breath sensors from the KontinuumLAB collection. For full description / explanation, go to the KontinuumLAB YouTube channel: https://www.youtube.com/channel/UCSvGhrAVvAKpWMsooCTBWZQ. This is the video about the MIDI ocarina specifically: https://youtu.be/M_PeYwXEBB4 All of the KLIK instruments are meant to be built using the KontinuumLAB Instrument Kit electronics. The use of 3d printed parts is optional, all instruments can be hand-made as well. I will be selling the "K.L.I.K." kit, as well as instruments based on it, in the webshop at: www.kontinuumlab.com The 3d-printable parts include: mouth pieces, breath sensors, self-flexing melodica keys, wind instrument keys, structural pieces, end pieces for making boxes, membrane instrument "drums", string instrument fret-board sensor bases and even a fully 3d-printed MIDI ocarina. The KontinuumLAB Instrument Kit is still under development, more detailed descriptions, as well as updates and more designs will be published right here.