Technical Terms - Hilti POT 10 Bedienungsanleitung

Two ends are marked on the ground for each control line.
These marks are used to position the individual components of the building or structure. Large buildings require a
number of control lines.

3.1.2 Technical terms

Tool axes
en
Horizontal circle / horizontal angle
The included angle of 70°- 40° = 30° can be calculated from the horizontal circle readings of 70° to one target and 40°
to the other target.
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a Target axis
b Vertical axis
c Trunnion (tilt axis)