Enclosure for Open.Theremin V3

thingiverse

This is my custom enclosure design for the electronic musical instrument Open.Theremin V3 (http://www.gaudi.ch/OpenTheremin/index.php/opentheremin-v3). Theremin is a truly unique musical instrument featuring two antennae that are controlled by varying the distance of your hands to change pitch and volume. The complete kit can be purchased for ~100$ from the official website, but I chose to assemble it from scratch by submitting Gerber files to a Chinese PCB manufacturer and ordering SMD parts from DigiKey in Canada, saving me ~50$. For the antennae, I bent thin copper pipes used under the sink into shape with my hands. The pipes were then covered with heat-shrink black tubing, while the enclosure was printed with white ABS plastic for a modern look. There are already several Open.Theremin V3 enclosure designs available online, but mine stands out due to its larger size, sturdier build, and heavier weight of ~550g, making it perfect for musical performances. The project includes STL files and original Fusion 360 files. Some STL parts serve only as design aids and should not be printed, allowing users to create their own Theremin enclosures. To assemble the enclosure, three types of wood screws were used: tiny ones for securing the PCB, small ones for connecting the two enclosure halves, and larger ones for internal use with the antennae. I left a bit of space between parts to account for 3D printing imperfections, but users may need to sand and file to achieve a perfect fit. All printed parts feature thick walls (2.4mm), tops, and bottoms for secure screw connections, using 20% infill. Users may require supports for the curved outer sections of the top and bottom parts; however, no supports are necessary for the interior components. The design may need slight modifications to accommodate specific PCBs and antennae configurations.