HP Designjet 3D Service Manual page 365

Figure 334: Measuring diameter of circle D
22. Add the lengths derived from steps 20 and 21 (C-D and D-E) and then
subtract the width of circle D derived from step 22. Record this total as
"GLR"
23. Measure and record the distance from the outside edge of the small
bump on circle A to the outside edge of circle D. See
Figure 335: Measuring distances from outside edges of A and D
24. Measure and record the distance from the outside edge of the small
bump on circle G to the outside edge of circle D. See
Figure 335
Figure 336
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