At the beginning of our project, the dispensing of paint was done by using linear actuators to push down syringes. We wanted to 3D print our own holders since we holders which suited our project were not present in the market. Our group went through many rounds of designing as we tried to balance functionality, aesthetics, and ease of creation. Since our group did not have experts in mechanical engineering, reducing the number of moving parts was a key priority. 

Our first idea was to consist of two parallel holders: one holder containing the syringe and the other for the linear actuators. Connecting the two holders was an issue – we had many options of a ledge, indent, hot glue – but we eventually decided on using magnets. This design would be easy – with practically no moving parts connecting the holders – but it was aesthetically unpleasant. Hence, we changed to the next idea.