HP Designjet 3D Service Manual page 364

20. Measure and record the distance from the outside edge of the small
21. Measure and record the diameter of circle D along the center line
-348
Figure 332: Measuring distances from outside edges of C and D
bump on circle E to the outside edge of circle D. See
Figure 333: Measuring distances from outside edges of D and E
between C and E. See Figure 334
Figure 333