AQA GCSE Design and Technology · 8552
Paper 1
Revise: Shaping timber-based materialsMeasurements are taken from a datum, a fixed reference point or edge, rather than from a succession of new points. A square can be used to mark lines at 90° to a straight edge. Mark the required cutting lines, hole positions or recess boundaries clearly.
- Revise: Use of production aids
A fixed point, line or edge from which measurements are taken.