3.Place the live center in your tailstock.
4.Attach a lathe dog to the bar stock and mount it between the centers. Figure 30
5.Turn approximately .010" off the diameter.
Figure 30. Bar stock mounted on centers.
TIP
Before making adjustments to the tailstock, mount a magnet dial indictor so that the dial’s plunger is on the tailstock barrel.
45 | 0 | 5 |
| ||
40 |
| 10 |
35 |
| 15 |
30 | 25 | 20 |
Figure 31. Adjusting for headstock end taper.
6.Measure the stock with a micrometer. If the stock is fat at the tailstock end, the tailstock needs to be moved toward you the amount of the taper. Figure31. If the stock is thin- ner
at the tailstock end, the tailstock needs to be moved away from you the amount of the taper. Figure 32.
45 | 0 | 5 |
| ||
40 |
| 10 |
35 |
| 15 |
30 | 25 | 20 |
Figure 32. Adjusting for tailstock end taper.
7.Loosen the tailstock mounting bolt. Adjust the tailstock offset by the amount of the taper by turning the adjustment setscrews. Figure 33. Turn another .020'' off the stock and check for taper. Repeat as necessary until the desired amount of accuracy is achieved.
NOTICE
Do Not forget to lock down the tailstock after each adjustment.
Adjustment Screw