Mfg. Since 10/09 | O P E R A T I O N |
2.Slowly continue to turn the handwheel until the 32' mark on the handwheel scale aligns with the 0° mark on the vernier scale (see the illustrated example in Figure 11).
Note: Figure 11 may not agree with the layout of the scales on your model. However, the use of these scales as instructed here is the same.
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| 20 Arc Seconds |
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| 60 |
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| 0 |
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| Vernier Sca | ||||||||||||||||||||||
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20 | 10 | 1 | 50 | 40 |
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| 30 | 20 | 10 | 0 | |||||||||||||||||||||||||||||||||||||||||||||||
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| Handwheel Scale |
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32 Arc Minutes
Figure 11. Handwheel and vernier scales aligned so that the table is at 16° 32' 20".
3.Identify the mark on the vernier scale that is two marks (20") to the left of the vernier scale 0° mark.
Important: When the handwheel is turned clockwise, the marks to the left of the vernier scale 0° mark are used, and when the handwheel is turned counterclockwise, the marks on the right are used.
4.Identify the mark on the handwheel scale that is immediately to the left of the vernier scale 20" mark, then slowly rotate the handwheel clockwise until the this mark and the vernier scale 20" mark are aligned. The table is now set at 16° 32' 20".
Operational Examples
Use your rotary table and mill to follow along with the operational examples below to better understand how to use the rotary table.
Note: For both examples, the following statements are assumed to be true:
•The rotary table is properly secured to the mill in the horizontal position.
•The rotary table is properly centered with the mill spindle centerline.
•The workpiece is centered and properly clamped on the rotary table, and elevated for proper machining clearances.
•The 0° marks of the handwheel and vernier scales are aligned.
Five Evenly Space Holes
In this example, you will make five holes spaced 72° apart in a circular workpiece, as illustrated in Figure 12.
72º
Figure 12. Five hole layout spaced 72°
apart.
