prototype 19

-Variant of prototype 10 and 15: System to determine electrically if there's still water in the bowl

-Better stability, more reliable 'spring-system', efficient operation

-Makes use of a PVC-tube piston with resilient material, some 'silicone molds' here, prototype 18

-Makes use of a large knob to adjust the weight

Expected +:More reliable 'spring system'

                    Better stability

                Efficient operation

Expected -:Too weak resilience

Tested +: Better stability

              More reliable 'spring system'

Tested -: ? (operation) -> will be tested soon!

user experience:

designer experience: 

(The production process can be greatly simplified by making use of the laser, vacuum forming, molds etc.)