HEIDENHAIN ND 1300 OED and Crosshair Systems - Manual (Page 108)

90 QC-300 Series User’s Guide
Lines constructed from a circle and a slot
Up to three line constructions can be made from a slot to a circle:
• Two point line:
The line between the slot and circle centers
• Tangent line 1:
The first line tangent to the slot and circle on the same side
• Tangent line 2:
The second line tangent to the slot and circle on the opposite side
To construct a line from a slot and a circle:
1 Touch the Measure Line icon
2 Touch the circle feature
3 Press the Enter key
4 Touch the slot feature
5 Press the Enter key
6 Press the Finish key
The two point line will be constructed. Alternative line constructions can be selected from the drop-down
menu in the DRO window.