3. Operation
(2) Using the protractor screen and the rotary table for measuring angles:
The cross travel of the stage is normally used in conjunction with the rotary movement of
the table for measuring angles, because it is difficult to align the center of the rotary table
with the vertex of the measured angle.
Align one of the screen cross-hair lines with an edge of the angle to be measured and
read the angle. Rotate the table to align the other edge with the hair line and read its
angle. the difference between the two readings represents the angle of the workpiece
edge. It is not necessary for the angle vertex to remain positioned in the center for
angular measurement, only that the edges be correctly aligned with the cross hair when
readings are taken.
The rotary table No.172-196 can be read in 2' and No.176-106 in 6' increments (using
the vernier scale).
No.172-196 No.176-106
Diameter of the stage top φ 146 mm φ 112 mm
Effective diameter of the stage glass φ 97 mm φ 60 mm
Vernier scale
No.99MBA043A 3 - 21
To Next Page
Loading...
Need help?
General
