7.Move the carriage stylus to the left hand limit of the profiled area and adjust the left hand stop until it is in contact with the car- riage. See Figure 14. Tighten the stop with a Phillips® head screwdriver.
8.Repeat the procedure for the right hand stop.
Figure 14. Adjusting positive stops.
9.Once the template and the workpiece are both securely in place, loosen the cutter in its collar and adjust it until both the cutter and the stylus are just touching the work- piece evenly and the template evenly. It is essential for accurate copying that the cut- ter tip and the tip of the stylus always remain at the same positions in relation to the workpiece and the master profile. Slide the carriage away from the workpiece, so both the stylus and cutter are well away from your work.
10.Ensure that everything is secure and turn on the lathe at its slowest speed. Slowly advance the cutting tool toward the left edge of the workpiece. Once contact is made, advance the cutting tool into the copy spindle approximately 1/16". Turn the longitudinal handwheel so the carriage travels from stop to stop.
11.After each pass, extend the cutter another 1/16" (maximum) and repeat with another pass. Repeat this process until the stylus comes in contact with the template.
12.Watch the tool carefully as you make each
-16-
pass. If it tends to bite or gouge the work- piece, back the cutter slightly and try again. Be conservative when removing stock.
13.After you’ve made several passes with the cutting tool, turn the lathe off and inspect the results. It should not be tapered. If it is, the Copy Attachment is not properly aligned to the axis of the wood lathe. Re- align the attachment, according to the instructions in the Assembly and Adjustment Sections and re-try with a new test cut.
14.If you are satisfied, continue to remove material from the workpiece, using the “downhill” cutting method shown earlier. Remember, trying to cut “uphill” will likely result in chipping and gouging. Don’t do it.
15.Continue removing stock until the work- piece is complete. See Figure 15.
Figure 15. Shaping the copy spindle.
16.After completing the initial copy, continue following these procedures until all the spindles are completed.
17.When all spindles are complete, remove the Copy Attachment and replace it with the lathe’s tool post.
18.Use appropriate lathe chisels to sharpen details and smooth the turned surfaces of each copy. Sand smooth.
G2891 Lathe Copy Attachment
