Testing Perpendicularity of Cross Slide to Spindle Axis
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Testing Perpendicularity of Cross Slide to Spindle Axis
Testing Perpendicularity of Cross Slide to Spindle Axis -
Testing Perpendicularity of Cross Slide to Spindle Axis
| A - Face Plate | C - Straightedge | E - Center line of Slide |
| B - | D - Cross Slide |
A dial gauge (G) is fixed to the edge of the face plate and a straight edge is clamped to the cross slide with its edge horizontal and perpendicular to the spindle axis. The cross slide is then moved along its guides carrying with it the straight edge across the dial gauge plunger.
If the line of movement of cross slide is not parallel to the straight edge and thus not perpendicular to the spindle axis (XX), the pointer of dial gauge will shift from its original position. Readings can be taken over a measured length of the straightedge in order to find out the amount by which the cross slide is out of square from the spindle axis.
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