Hello Listfolk,

   Did Terry start this thread?  The problem with using the standard
"A" shape spring clamps is that they usually have too much pressure
for this particular application.  Also, they are guaranteed to
produce unwanted shearing forces UNLESS the thickness of what is being
clamped is just right to allow the surfaces of the clamp to be parallel
to each other.  I have taken a "low tech" approach to this task.  Over
the years I have stripped a fair amount of lead tubing out of player
pianos.  I have a small brass mold that produces ingots measuring 1.25"
x 1.625" x 2.625" and weighing about 2 pounds each.  I have made about
200 of these ingots.  (Caution: Always melt lead in a well ventilated
area, preferably outdoors.)  I simply place the freshly glued valve
block on a level surface, put two ingots on top of it, and let gravity
do the work.  No slip, no slide.  This works well for gluing striker
pneumatics to decks also, but make sure the deck surface is absolutely
level and well supported so that it does not shift under the weight of
the lead.

-John Grant

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"Beer: It's not just for breakfast any more."¶
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