ENGG10111- Innovation and Engineering Solutions Assignment

Assignment Task

Assessment Requirements

Additive manufacturing and Laser cutting techniques are becoming more popular as the cost of hardware and control software is becoming lower. These methods in combination with CAD (computer aided design) and structural simulation can be powerful tools for realising concepts and prototyping ideas. Furthermore, the process of designing, optimising for manufacturing and communicating is an important skill for engineers. A project will be assigned to students which will require the use and development of the skills mentioned above.

Apart from the assessment, there are awards for Best Design in four categories: Ergonomics, Creativity, Efficiency and Portability.

Project: Laptop Stand

Each student will be assigned limited material resources they can use to manufacture a laptop stand of their choice. The stand will have to comply with certain design specifications and constraints. It will have to be able to support at least 5 Kg (laptop + hands while typing) of mass in addition to its own weight (Fig.1). The students are expected to research for existing designs and then generate one of their own. Focus should be on material efficiency, structural integrity, creativity, aesthetics, ergonomics and portability.

Students are advised to design the stand according to their own personal laptops (if available). Alternatively, students are encouraged to use the Lenovo laptops available in the Dept. of Engineering for references and designing.

Autodesk Fusion 360 is to be used for the design and assembly process as well as for the structural simulation and potential improvements. Once the design is finalised the drawing will be exported in the appropriate format for manufacturing.

Notes

• Glue may not be used to assemble the laptop stand (slots can be created in the design to assemble the components together)
• Poplar Material area available for each student 400 mm X 300 mm with an average thickness of 3.8mm
• Designs are at the discretion of the student - marks will be awarded for:
  • aesthetically pleasing designs
  • optimum material use via stress analysis in Fusion 360. Optimised for 5kg load (minimum FoS of ‘3’).
  • Ergonomics- modularity, stand angle, height etc.
  • Features- Air flow, Wire management etc.
  • The laptop stand should fit in a cardboard box of dimensions 400 mm x 300 mm x 30 mm to be rated portable.
• The aim is to go through design and simulation to iteratively optimise the structure in terms of material mass. Simulation and stress analysis will reveal areas of unutilised material which can be subsequently removed to produce a lightweight and efficientThe material properties: 

Material properties for Poplar wood

Material properties for PLA

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