PDS:Create A Spiral Piece

Use this command to create a spiral piece with defined dimensions. This is often used to create ruffles. Learn how to create a Graded Ruffle.

Icon & Location

• 
  
  
• Menu: Piece> New Piece> Create A Spiral Piece

Operation

1. Invoke the Create A Spiral Piece command.
2. Enter the appropriate values.
3. Click OK to create the spiral piece.

Common Usage Example

1. A ruffle needs to be attached to the pants' back piece hem (30cm wide)

2. Create A Spiral piece dialog

3. The ruffle is created

Dialog Explanation

Piece Name

Set the Piece's Name.

4. View the name through the View & Selection

Circles

Set the number of circles. 'Spiral Length – External' and 'Spiral Length – Internal' are updated automatically according to this field.

5. 0.5 circles

6. 1 circle

7. 1.5 circles

8. 2 circles

Points Per Circle

Set the number of points per circle. Note that the 'last' grading point is not counted as part of the points of the current circle; instead, it is counted as the first point of the next circle.

9. Points Per Circle = 8

Spiral Length – Internal / External

Set the length of the segment from the 'inside' and 'outside' of the spiral. 'Circles' and 'Spiral length – Internal' are updated automatically according to this field.

10. Internal = 10cm; External = 30cm

Preamble – Width

Set the distance between the first circle's internal and external points.

11. Width = 5cm

Preamble – Radius

Set the distance of the first circle's internal point from the center point of the spiral.

12. Radius = 0

13. Radius = 5, so the marked point is actually 5cm from the spiral's center point

Increase Per Circle – Width

Set the value of the increment in the circle's width.

14. Width = 0 – no change in the Preamble Width, which is 2cm

15. width = 10cm, there is a change in the width. The length is 2 (the Preamble Width) + 10 (Increase Width) = 12cm

Increase Per Circle – Radius

Set the value of the increment for the distance of the circle from the 0,0 point of the spiral. The smallest value for this field is the preamble - width.

16. Width = 4cm; Increase per circle – Radius = 5cm
The gap between the first circle and the second circle is 5-4 (marked in green) = 1cm

Direction

Set the direction of the spiral.

17. Clockwise

18. Counter-clockwise

Related Subjects

• Basic Figures
• Create A Rectangular Piece

Related Tutorials

• Graded Ruffle