Creative Woodworks & crafts 2005-09, страница 75

Turning a pocket watch

Mark 2-1/8"-Pia. circle on blank.

Cut the wood for Che 36m.m-Dia. clock insert pocket watch to a 2-1/4" square. Find and mark the center point. With a compass anchored on the center mark, draw a 2-l/8"-Dia. circle on the blank.

Tightly chuck rip a 1-3/8" forstner bit into a drill press. Secure the blank flat into the drilling center vise and, with the point of (he Ibrstner bit on the center mark, drill a 5/i6"-deep hole.

Prill center hole in blank using 1-3/8" forstner bit in drill press.

Using scroll saw to cut away excess wood from marked and drilled blank.

Mounted blank in lathe with tall stock and scrap wood.

Mount, the prepared blank on the 1-3/8" expanding collet chuck and fasten it securely. Bring the tail stock to fhn blank and place a small wood scrap between the blank and the tail stock. Snug the tail stock against the wood scrap and lock it in place. Tins exira step is a safety precaution, primarily for the roughing process. The 2-l/R''-F)ia. circle is a larger diameter than normally used by pen turners, so a bit of caution is advised. The scrap wood prevents the tail stock from dimpling the blank.

Using scroll saw to cut away excess wood from marked and drilled blank.

Use a handsaw or scroll saw to cut away the w^:ood outside the 2-i/8"-Dia. circle drawn on the blank. This step helps make the turning process safer by removing the corners of the block, which otherwise could catch and grab the gouge.

With lathe on low speed, begin to rough out, being sure tool rest is properly positioned.

Position the tool rest. Check that it is properly placed by manually rotating (he blank, ensuring (hat the blank does not strike the tool rest. Make sure that your rough out gonge is sharp. Turn the lathe on to its lowest speed and begin lurning. Whenever you stop (he lathe to check your progress, also check that the blank has nor loosened up on the chuck. Begin to round the edges of the blank. Be careful that you do not hit the tail slock widi the gouge, as it will damage the ending edge of the tool. As the blank rounds up. advance the speed of the lathe and smooth the tool marks.

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