Having decided on a concept, it is time to bring it to the level of product. This is done via a detailed design phase, where the functionalities, materials and production processes for the product are worked out. Moreover, the colour palette and marketing aspects are decided on. This phase also results in a prototype to clearly communicate the design.
Detailed design
Prototype
A scaled down model of Mycelio and Mycelio Deluxe is made in SolidWorks to give a better overview of the design. The design is scaled down 2:1. The colours in the model do not reflect real life and are changed for easier explanations. Both models consist of a base with a backboard that can be taken apart. Inside the machine, there are necessary components such as the heating element and the pump. The last one is crucial, as it allows for brewing of coffee by pumping up cold water from the water tank through the heating element, almost boiling the water. Water is then pumped with 19 bars through the brewing head and the coffee disk to get the most wonderful cup of espresso. The Deluxe version has two boilers due to the integrated milk frother, Mycelio has one.
In front of the machine there is the brewing head, where consumers can put in the coffee disk and coffee will flow out from the bottom of. The brewing head consist of multiple pieces, first the base, where the hot water will pass through (red part). To open and close the brewing head a lever is used (yellow). The green part is an extra layer added, that can be removed and cleaned occasionally. It is connected to the brewing base through a snap fit. The top part is a small container where the coffee disk is placed (dark blue). It has holes to evenly distribute the liquid and can easily be removed to clean. The black shell holds everything together and contributes to a more aesthetic look. All moveable components can be seen in the video at the bottom of this page.
Exploded view of brewing head
The prototype however does not cover all details. For example, the water tank will feature a rubber seal, which is closed under the pressure of the water. When the water tank is attached to the machine, the rubber seal is opened, which allows the water to flow into the pump. Then, when removed, the rubber seal closes again, which prevents water from dripping out. Another feature not covered is the power source: the machine shall use 240 volt AC, as it is standard in Europe.
Moveable components of Mycelio
3D view of the Mycelio Deluxe
Open back of Mycelio and Mycelio Deluxe
The cup for coffee will be placed on a drip tray under the brewing head, which also catches the liquid if anything is spilled or the user forgets to put a cup on the tray. This tray is easy to remove, clean and place for the user. Finally, there is the water container where water is stored for brewing coffee. The container has an handle, which helps to carry it, the to attach the container, the user simply slides the container via the rails on to the machine side.