where do the broken needles go?

BobDavis88@aol.com BobDavis88@aol.com
Mon, 14 Sep 1998 14:34:44 EDT


In a message dated 9/13/98 8:16:19 PM Pacific Daylight Time, drose@dlcwest.com
writes:
<< but a tip I learned is to take the temper from
 the needles by putting them into a flame from a lighter for a few seconds.
 This makes them far less brittle. >>

What you actually want to do is "temper" the hardness. This works but takes a
little care. It's very easy to anneal (temper ALL the hardness out) and wind
up with needles that just bend over at the second or third stroke. If you hold
the needle a little above the flame, so it heats more slowly, you can control
the tempering. Move it back and forth to keep the heat even. The needle will
change color. There are two colors of "straw" and two of blue. Experiment in
this range to see what works best for you - beyond this and it's probably too
soft. Too soft is okay where a screw clamps the needle but not okay outside
the tool.
Bob Davis


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