Engineering - Exam Papers - Higher Level - Project - 2015

150 Marks

To be complete by Friday 6th March 2015

Design Brief

1. Introduction
   
   Amusement parks and family entertainment centres were traditionally characterised by the iconic roller-coaster. However, 21st Century amusement parks are defined by more compact mechanised thrill machines. This has been achieved by industrial robotic and electro-mechanical systems being re-configured, by design and motion specialists, in the field of entertainment. Leaders in this design environment are Robocoaster who have developed an electric passenger carrying machine, using industrial control technology, which has a passenger cart mounted in place of a tool. The distinctive features of the invention are the dynamic and flexible motion sequences, which can be safely created, within its working envelope.
   
   Design a model thrill machine to the general specifications outlined below.
   The machine should be your own unique design and should:
   
   (a) Be capable of moving in a linear or circular path;
   (b) Have a single seat passenger cart, attached to an arm, which can rotate through 360°;
   (c) Include a passenger safety harness;
   (d) Incorporate a switching panel to operate the machine.
   
   Presentation of the completed project should ensure that:
   
   (a) All main operating features are clearly visible without dismantling;
   (b) The longest dimension does not exceed 350 mm;
   (c) Electric power does not exceed 9 volts.
   
   Special Note: Modified toys are not acceptable.
   
   
2. Design Process (40 marks)
   
   A design folio must be compiled which will detail your :
   
   
   1. Analysis of the given brief and investigation of possible solutions;
   
   
   2. Criteria for selection of your own individual solution and production drawings/plans;
   
   
   3. Testing and evaluation of your design solution;
   
   
   4. Special instructions, if required, regarding the testing of the solution by the examiner.
   
   
   Note: Marks are awarded as shown in Marking Scheme (below).
   Computer-aided design (CAD) should be used where possible.
    
3. Design Realisation (110 marks)
   
   Using appropriate materials, make the model according to your own individual design plans. Computer numerical control (CNC) technology should be used, where possible, to support manufacture. You are required to manufacture and assemble all the parts, subject to the following guidelines :
   
   
   1. Standard components may be used to support the assembly and interconnection of various parts;
   
   
   2. Unnecessary recycling will result in lost marks. Recycling will be acceptable only in cases where a complex part cannot readily be made in the school;
   
   
   3. Bought-in electronic solutions will result in lost marks;
   
   
   4. Adhesives, if used, should be applied sparingly.
   
   
   Marks are awarded as shown in Marking Scheme (below).
   
    
4. Project Presentation
   
   Your completed project consisting of the model and design folio, both clearly identified with your examination number, must be available to the visiting examiner.
   
   Marks are awarded for quality of presentation and finished appearance of both the model and folio.

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Marking Scheme