production aids

Question 1

reference points

Answer 1

• a datum
• a starting point from where all measurements are taken
• increases accuracy and reduces measurement error
• often used to scale drawings
• important in aligning CAM machines

Question 2

templates

Answer 2

• shapes that can be drawn or cut around to produce a specific shape
• using a template ensures all designs are identical
• quicker than drawing a design to scale every time as reusable
• need to be strong and hardwearing so they can be repetitively used

Question 3

jigs

Answer 3

• used to guide tools, or makes sure the workpiece is positioned in the right place for machining
• come in different shapes and sizes made specifically for a particular job
• improve accuracy
• speed up process and simplify making process
• e.g drilling jigs ensure holes are drilled in the same place

Question 4

patterns

Answer 4

• templates that can be used in textiles or casting
• textiles: used to trace outlines onto textiles so they can be cut out and sewn together
• casting: patterns commonly made from metal, wood and plastic resin, molten material poured into the mould created by the reusable pattern to create an object the same shape as the pattern