5. OPERATING
5 . 7 Vertical Stage Adjustment
Vertical adjustment of the work stage is by means of the large hand wheel
on the left below the work stage knee.
5 . 8 Screen Angular Measurement
The venire protractor screen, consists of a frosted glass screen divided
into four equal quadrants by precision cross lines. The screen is rotated by
means of a small hand wheel on the right of the screen. The standard
venire protractor can then be used to determine angles with 1 minute
resolution.
