Re: Cavity Pump help...

Great job Lloyd , but one thing
On the square holeshot you can't turn it after pressing . It destroys the
comet .
What we did was remove the pin and drill a hole through the whole deal for a
small cotter pin . Use the same process as you but just pull the pin and
push it out .
Greg
"Lloyd E. Sponenburgh" <lloydsp@xxxxxxxxxxxxxx> wrote in message
news:cLKag.14020$LE4.6340@xxxxxxxxxxxxxxxxxxxxxxxxxx

<ArcadeNO@xxxxxxxxxxx> wrote in message
news:uksm62thbp19g8dutu4e34k8jq8rji1aed@xxxxxxxxxx
Hi All.

I just got my cavity pump from Wolter.

Is there anyplace that can give me step by step instructions with pics
jopefully to help me make things correctly??

I did talk to rich, and gave me a general idea on what to do...but
would like more detailed instructions..

How about simple step-by-step. Pictures aren't necessary, unless you have
a
weird mould.

Place the plunger in the tube with the 'stop' pin about twice as far from
the upper (handle) end of the tube as the distance from the end of the
tube
to the bottom of the gauge slot. I.E. -- if the crossette is designed to
be, say, 1" long, hold the plunger up about 2" from the _beginning_ (top)
of
the slot.

Hold the parts in that position with one hand, and lower the tube and
plunger open-end down into your bucket of moistened comp. With the other
hand, gently stuff comp up into the open end until you have a uniformly
firm
(but not tight) fill all the way to the mouth of the tube. Trim up the
comp
extending past the mouth until it's flush with the mouth of the tube, so
you
don't make a mess.

Place the filled tube open end down on a clean, flat "pressing plate".
Using an arbor press or even a mallet, force the plunger down until the
comp
is as hard as you desire, but MAKE ABSOLUTELY SURE that the plunger stops
before the stop pin impinges on the top end of the tube. When the
crossette
is pressed hard, the pin should stop, say, 1/4" short of hitting the tube.

Now, remove the mould from the plate, and by hand or on a special
'ejection
plate' (just a plate with a hole sized so the tube sits on top, but the
comet will fit through the hole) press the plunger until the stop pin just
kisses the top end of the tube.

Hold the whole affair open-end up, and trim the excess comp you've just
pressed past the end of the tube (use a straight-bladed knife, and don't
try
to chop the whole chunk off at once... TRIM it away).

Once the end of the comp is trimmed (again) flush with the open end of the
tube, turn the plunger until the pin lines up with the gauge slot. Again
by
hand or on your ejection plate, press the crossette out of the tube until
the pin just kisses the bottom of the gauge slot.

Now the process may vary, depending upon your cavity shape. If it's
round,
gently twist the crossette off the pin. If it's square or cruciform,
you'll
have to pull it straight away without twisting.

Dat's it. I've done tens of thousands of them.

LLoyd




.

Relevant Pages

  • Re: Cavity Pump help...
    ... Place the plunger in the tube with the 'stop' pin about twice as far from ... plunger open-end down into your bucket of moistened comp. ...
    (rec.pyrotechnics)
  • Re: Cavity Pump help...
    ... the crossette tutorial will def come in handy!!! ... Place the plunger in the tube with the 'stop' pin about twice as far from ... plunger open-end down into your bucket of moistened comp. ...
    (rec.pyrotechnics)
  • Re: Cavity Pump help...
    ... turn the plunger while the comet's still in the tube." ... I disagree with that, but then, I press my crossettes very, very ... In that case, I'd just pre-align the stop pin with the slot, and visually ... stop ejecting when the pin comes level to the top of the tube, ...
    (rec.pyrotechnics)
  • Re: Peavey Classic 30 Overdrive Channel Master Volume Does Nothing Now
    ... The clean channel sounds fine, but the overdrive channel doesn't give ... If you're not afraid to get in to a tube amp with your hands try to measure some voltages at tube V2a en V2b. ... V2a pin 1: ...
    (alt.guitar.amps)
  • Re: Peavey Classic 30 Overdrive Channel Master Volume Does Nothing Now
    ... The clean channel sounds fine, but the overdrive channel doesn't give ... If you're not afraid to get in to a tube amp with your hands try to measure some voltages at tube V2a en V2b. ... V2a pin 1: ... You should hear a buzzing sound that can be adjusted with the master volume. ...
    (alt.guitar.amps)