|Music Punch Die
Many people have difficulty lining up the die plate with the punch rod. My
simple method is to use a piece of 1/2" square bright steel or stainless
about 2mm thick. Drill for a good fit on the rod. Apply a couple
of dabs of super glue under the plate, lower the punch rod into position
and hold it for a minute or so and you have a perfect alignment. It
lifts off easily with a knife blade if you need to change it.
Music Punch Solenoid
When I tried to electrify my punch I always had trouble getting the right
solenoid to give a good whack. The simple answer has been the solenoid
from a car starter motor. Mine is from a Fiat, and it is powered from
a battery charger, 12v - 10A. I use a micro switch, as in John Smith's
punch, with a wooden button.
Ornamental Knobs for Organ
Some of the knobs on my organ are brass buttons with brass nuts soft-soldered
onto the back. You can get some very nice military and railway, etc.