Portfolio Daniel Franz

cAIR

Maske

Simply blown away.

Hygenic toothbrush - study project, first semester, individual work

ideation

The ideation was mainly about the following questions: How to improve the hygiene of a toothbrush? Where are the current problems?

concept

How do you get rid of all the bacteria from the brushes? A possible solution is to blow away their nutritional basis after brushing. This could be made possible with the help of a CO2 cartridge. Compressed air is led through a channel to small holes between the bristles where it gets rid of humidity.

construction

The idea was brought to life in Solidworks. The mechanism is based on a valve for inflating bicycle tires.

model making

After 3D-printing all the components the fitting and sanding began.

prototype

Due to the small CO2 bikepump this model actually works. It blows away most of the water inside the bristles. Unfortunately sometimes the whole brush head gets airborne :)

simply blown away

A small test shows that the wet brush is significantly drier after a blast of CO2. To really explore the effect, further experiments need to be done.