Maker Walter Greger has published the “DrinkOMat“, a 3D-printed drinks mixer, as an open project. The STL files for the housing parts and a shopping list for the electronic components are available free of charge.
According to Greger, the DrinkOMat can be made entirely by yourself with a manageable amount of effort – provided you have a certain amount of experience with electronics, software and 3D printing. In return, you can create your own battery-powered cocktail mixer with Bluetooth and app connection.
The inner workings essentially consist of two circuit boards: a main board with an ESP32 microcontroller and an extension for the valves. There are also mini-pumps, various hoses and connections as well as a large display.
The PCBs, pumps, and valves are integrated into the 3D-printed housing first. This is followed by the somewhat tricky assembly of the hoses and filling nozzles.
According to Greger, the combination of different pumps and valves makes it possible to prepare both classic long drinks and frothy cocktails. The DrinkOMat is controlled via its own iOS app.
All in all, an exciting project for all amateur bartenders with an affinity for technology. The project page contains 3D model files, circuit diagrams and detailed assembly instructions. The project can also be found on Thingiverse and GitHub.