A Course In Wood Turning by Archie S. Milton;Otto K. Wohlers
page 27 of 64 (42%)
page 27 of 64 (42%)
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holding the calipers in the left hand perpendicular to the cylinder and
measuring the cuts as they are made. The scraping should continue until the calipers will pass easily over the cylinder. It will be well while scraping to work the handle of the gouge a little from side to side so that the nose has more clearance. This will prevent the piece which is being turned from chattering or vibrating. The calipers will be slightly sprung by coming in contact with the revolving stock but this error in diameter will be removed by the finishing cut which removes these marks from the finished cylinder. 3. THE SMOOTHING CUT (LARGE SKEW). FIG. 6. Lay the skew chisel on the rest with the cutting edge above the cylinder and at an angle of about 60° to the surface. Slowly draw the chisel back and at the same time raise the handle until the chisel begins to cut about 1/4" to 3/8" from the heel. The first cut is begun from 1" to 2" from either end and is pushed toward the near end. Then begin at the first starting point and cut toward the other end. One should never start at the end to make a cut as there is danger that the chisel will catch and cause the wood to split or that the chisel will be torn from the hands. The first cut takes off the bumps and rings left by the gouge, and takes the stock down so one can just see where the scraping to size was done. Then take the last cut and remove all traces of these, leaving the cylinder perfectly smooth and of the required diameter at each end. Test the cylinder for accuracy with a straight edge. |
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