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Teaching Assistant

Teaching Assistant: 3D Printing of Carbon Fibre Composites

Key Facts:
Robotic Controls (Open Source, Arduino)
Carbon Fiber Printing
32CHF/h

Supervisor M. Eichenhofer (martieic@ethz.ch)
Begin/End to be discussed

Motivation:
Additive manufacturing (AM), also known as 3D printing, is an emerging and potentially revolutionary technology aimed at small volume manufacturing for highly customized applications, e.g. aerospace, medical devices, and replacement parts. However, the processing technology still requires development before it can be used to manufacture final parts beyond mere prototypes. The AM of continuous fibre reinforced thermoplastic composites, in particular, presents its own set of challenges compared to processes that work with neat polymers, metals, and ceramics due to the anisotropy of the material.
Continuous Lattice Fabrication (CLF), a patented technology developed at the ETH Zurich, is the first to present a truly 3D fabrication process for composite material not based on layer by layer build ups, capable of fabricating out-of-plane reinforcements.

Ojectives:
An inexpensive “Dobot” robotic arm will be prepared and equipped for the task of fiber composite printing (CLF) by adding an additional two axes (degrees of freedom) to always keep the nozzle perpendicular to the printing surface (arbitrary shaped surface). The task assignment contains the following:
  • Identify design space to add two additional axes to Dobot system and selection of one solution for integration (already considering feasibility for software integration)
  • Integration of chosen solution to robot (design of necessary components, mechatronics, software development)
  • Experimental test and validation of added axes (e.g. follow “true” three-dimensional surface, dome structure, and keep nozzle perpendicular to print surface)

Telefon:+41446339283
Publizierungsdatum: 12.03.2017 11:49:15
Name des Ansprechpartners: Martin Eichenhofer
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