Metalwork - Exam Papers - OL - Project - 2008

300 Marks

Instructions

  1. Details of a Model Steam Roller are shown on the accompanying drawings.
  2. Make and assemble the project using the materials specified in the Parts List.
  3. Design, make and attach a removable Inspection Cover and a Chimney for the Boiler.
    (Note : 20% of the marks will be awarded for this section.)
  4. Place the Battery Clip in the Boiler.
  5. Position the Motor Holder to suit the tension of the Chain.
  6. Attach the Part 10 to Part 3 using Pop Rivets.
  7. Complete, test and solder the Electric Circuit.
  8. Your Examination Number must be clearly engraved on the top surface of the Roof (Part 1).
  9. Your completed project, clearly identified with your Examination Number as indicated, must be available to the visiting examiner along with the necessary testing equipment (Batteries or Transformer).

Parts List

Part No. Part Name Required Material and Description
1 Roof 1 Aluminium (painted)
2 Chassis 1 Aluminium (painted)
3 Boiler 1 Aluminium Tube
4 Roof Support 4 Brass or Steel (painted)
5 Steering Link 1 Brass
6 Steering Wheel 1 Aluminium
7 Roller 1 Nylon or Acetal
8 Roller Bracket 1 Brass
9 Steering Pivot 1 Aluminium
10 Boiler Bracket 1 Aluminium

As Supplied

Part No. Part Name Required Material and Description
13 Switch 1 5mm Toggle
14 Motor 1 Ø24 x 27
15 Motor Holder 1 Self Adhesive Type
16 Battery Holder 1 AA x 2
17 Insulated Wire 1 As Supplied
18 Motor Gear 1 Plastic Gear - 12 Teeth - with Brass Hun and Reducer
19 Rear Axle Gear 1 Plastic Gear - 30 Teeth
20 Drive Chain 1 Chain to suit Gears, 25 links approx.
21 Steering Chain 2 110mm of 2mm Brass Linked Chain
22 Steering Shaft 1 M5 x 60 Threaded Bar
23 M3 x 12 Pan Head Screw 2 Brass or Steel
24 M4 x 20 Pan Head Screw 3 Brass or Steel
25 Ø3 x 12 Pop Rivet 2 Aluminium
26 M3 Hex Nut 4 Brass or Steel
27 M4 Hex Nut 4 Brass or Steel
28 M5 Hex Nut 15 Brass or Steel
29 M4 Cap Nut 2 Brass or Steel
30 M5 Cap Nut 5 Brass or Steel
31 M4 Lock Nut 1 Steel
32 M5 Lock Nut 2 Steel
33 Wheel 2 Ø90mm x 30mm, with 4mm axle hole
34 Rear Axle 1 M4, threaded Bar (150mm approx.)

Design Element

Part No. Part Name Required Material and Description
11 Boiler Chimney 1 As Designed
12 Inspection COver 1 As Designed

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