Section 74: Taper with a 90 Degree Round Run-out

Required Information

• Height
• Large diameter
• Small diameter
• True height

Procedure

1. Step 1

   Draw an Elevation View of the fitting

2. Step 2

   Draw the Center Lines for both the Taper and the Run-out so that they intersect

3. Step 3

   Draw a semi-circle at the end of the run-out and trisect that semi-circle. Draw lines at 90 degrees from these points to the Center Line and label the points on semi-circle as shown

4. Step 4

   Where the top and bottom lines of the run-out intersect the taper, draw perpendicular lines up and down as shown

5. Step 5

   Swing quarter circle arcs, using the radius of the run-out, from the points where the top and bottom lines of the run-out enter the taper. These quarter circles will be drawn to the perpendicular lines in

6. Step 6

   Draw another two quarter circles to represent the radii of both large and small diameters. These will be drawn using the Center Line as an Apex point

7. Step 7

   Trisect the two first quarter circles drawn in

8. Step 8

   Where these lines intersect both larger arcs, draw 90 degree lines up and down to the outside lines of the run-out

9. Step 9

   Connect corresponding lines from both outside lines of the run- out and where they intersect with the run-out lines, place a dot and connect all those dots

10. Step 10

    The Stretch-out will be drawn as shown in

11. Step 11

    Draw the body as a Taper would be drawn. Draw the hole cut- out as was shown in previous layouts