Metalwork - Exam Papers - HL - Project - 1993
150 Marks
Instructions
Details of Model Weighing Scales are shown on the accompanying drawing.
- Make the model using the material as specified in the parts list.
- Assemble the parts with the set screws and the nuts as supplied. Solder the joints on the weighing pan.
- Design and form a graduated scale to be either affixed to the frame A or a part of it. This scale may not be extended beyond the dimensions of the frame. Do not alter these dimensions.
Parts List
| Part No. | Part Name | Required | Material and Description |
| 1 | FRAME | 1 | BRASS OR COPPER |
| 2 | PAN | 1 | BRASS OR COPPER |
| 3 | BASE | 1 | CLEAR PERSPEX |
| 4 | GUARD | 1 | COLOURED PERSPEX |
| 5 | BACK BRACKET | 1 | ALUMINIUM |
| 6 | PAN SUPPORT | 1 | BRASS OR COPPER |
| 7 | POINTER | 1 | BRASS OR COPPER |
| 8 | LINK | 3 | ALUMINIUM |
| 9 | ADJUSTING NUT | 1 | ALUMINIUM |
| 10 | ADJUSTING SCREW | 1 | STEEL |
As Supplied
| Part No. | Part Name | Required | Material and Description |
| 11 | SPRING | 1 | STEEL |
| 12 | M4 x 35 SET SCREWS | 4 | STEEL |
| 13 | M4 NUTS | 12 | BRASS OR STEEL |
| 14 | M4 x 7 SET SCREWS | 3 | BRASS OR STEEL |
| 15 | M4 x 14 CSK SET SCREWS | 3 | BRASS OR STEEL |
| 16 | Ø4 WASHERS | 10 | BRASS OR STEEL |
Design Element
| Part No. | Part Name | Required | Material and Description |
| 17 | GRADUATED SCALE | 1 | AS DESIGNED |
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