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Metalwork - Exam Papers - HL - Project - 1997
Instructions
- Details of a Moving Iron Meter are show on the accompanying drawing.
- Make the project using the materials specified in the parts list.
- An alternative design for the armature and pointer may be used.
- Design and make an adjuster to zero the meter.
- Assemble the parts using the set screws supplied.
- Calibrate as an ammeter using a 9 volt battery.
Parts List
| Part No. |
Part Name |
Required |
Material and Description |
| 1 |
BASE |
1 |
PERSPEX |
| 2 |
SUPPORT BRACKET |
1 |
CLEAR PERSPEX |
| 3 |
SUPPORT BRACKET |
1 |
CLEAR PERSPEX |
| 4 |
COIL SUPPORT BRACKET |
1 |
BRASS |
| 5 |
COIL SUPPORT BRACKET |
1 |
BRASS |
| 6 |
COIL FORMER |
1 |
COPPER PIPE (1" OR METRIC EQUIVALENT) |
| 7 |
ARMATURE |
1 |
STEEL |
| 8 |
POINTER |
1 |
BRASS |
| 9 |
SPACER |
2 |
BRASS, PERSPEX OR NYLON |
As Supplied
| Part No. |
Part Name |
Required |
Material and Description |
| 10 |
COIL |
1 |
APPROXIMATELY 500 TURNS INSULATED COPPER WIRE Ø 0.6 |
| 11 |
M3x20 SET SCREWS |
1 |
BRASS OR STEEL |
| 12 |
M3x6 SET SCREWS |
1 |
BRASS OR STEEL |
| 13 |
M5x6 SET SCREWS |
6 |
BRASS OR STEEL |
| 14 |
M5x12 CSK SCREWS |
2 |
BRASS OR STEEL |
| 15 |
M5 HEX NUT |
2 |
BRASS OR STEEL |
| 16 |
M5x12 SET SCREWS |
2 |
BRASS OR STEEL |
| 17 |
M3 HEX NUT |
1 |
BRASS OR STEEL |
| 18 |
INSULATED WIRE |
AS REQUIRED |
AS SUPPLIED |
Design Element
| Part No. |
Part Name |
Required |
Material and Description |
| 19 |
ADJUSTER |
1 |
AS DESIGNED |
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