Triangulation

27 Off-Centre Round Taper

  1. Draw a full complete with all and labeling. Label one half of the plan view, go from large end to small end, zigzagging back and forth with the numbering 1-14. Remember, every round to round will be on centre one way, but it is always worth drawing the whole thing.
  2. Create a  and label all the element lines.
  3. Draw a vertical line equal to the of line 13-14.
  4. From the TLD, pick up the true length of line 13-12 and swing it from point 13 back towards point 14. Remember to work both sides at the same time.
  5. Next, pick up step-off 14-12, and swing it from point 14.
  6. Pick up line 12-11 from the TLD, and swing it from point 12.
  7. Pick up step-off 11-13, and swing it from point 13.
  8. Follow this same procedures, swing the true length of an element line and a step-off to create the next point until you reach point 1.
  9. Draw in the all the element lines and outside edges, use a flexible curve for the round ends.

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Pattern Development: Sheet Metal Level 1 by Brian Coey is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

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