Square to Circle Rule

1. Square to Circle Rule Sculpting Ruled Surfaces

2. Sand the block faces flat Draw lines on the faces to form 2 datum plane Measure the dimensions to the nearest mm Draw a 1:1 dimensions projective drawing of the block 120 120 120 Finishing-up

3. Activity – Straight Lines Composition

5. Activity – Line Compositions

6. Use the base of your block as the quadrangle Cut the top of your block as you prefer, add the centre-line back after flattening the top Draw a circle on the top, size and location as you prefer Sculpt the transitional surface in between Activity – Quadrangle to Circle Rule

7. Design a vase body by transforming a quadrangle to a circle The form must compose of ruled surfaces only You may use simple or compound surfaces Focus on the control of silhouette and internal edges of your design to achieve a sense of order Activity – Quadrangle to Circle Rule

11. 120 120 120 Activity – Quadrangle to Circle Rule

12. Complete the transitional surface Focus on the control of silhouette and internal edges of your design to achieve a sense of order Use a fine black pen, mark all surface patch boundaries on the Styrofoam Activity – Quadrangle to Circle Rule

13. Measure the final form and document your design by technical drawing The drawing should contain enough information for others to reproduce your form in CAD without loosing your design intent Activity – Quadrangle to Circle Rule