ETHEC city is a Swiss student project that aims to radically change the mobility of tomorrow with the technologies of today. To face the challenges of climate change and sustainability, the team develops an electric motorcycle with an ingenious two-wheel drive that saves energy and improves the range.
Constructed to work as end-use parts, the requirements for the 3D printed objects were high: Apart from being lightweight, they also had to be durable and strong – material properties that apply well to Selective Laser Sintering. When the students began looking out for partners, the Swiss based manufacturer of SLS printers Sintratec decided to sponsor several components to support the project. Subsequently, parts such as the casing for the display or the fuel filler flap were laser sintered on the Sintratec S2 system using Sintratec PA12 nylon powder – with convincing results. «The quality of Sintratec’s products were extraordinarily precise with a very good surface quality», Tobias points out. «The display case in particular had to be durable enough to be protected against the weather, strong enough to sustain mechanical impacts, and also robust enough to be used without deforming it.» For the ETH student, the SLS components fulfilled these demands.
Great example for the advantages of SLS: The casing of the front display was quickly 3D printed, sent to ETHEC, and after painting built right into the motorcycle.