Tips on making Pipe Stoppers
In earlier drawings of the "Busker" organ, J.Smith used foam with closed
cells around the stopper to make it airtight. But it is not so easy to find
this kind of foam, so I use ordinary dust-foam for windows. Using foam to
make an airtight stopper, in a small organ, is an easy way and very
suitable for the amateur builder.
1) Handle made of 4 mm "flowerpot-stick".
2) Wooden part of the stopper, about 2 mm smaller around then inside
of the pipe and about 10 mm thick.
3) Self-adhesive dust-foam for windows 9 x 6 mm cut like the drawing
and fixed to the side of the stopper.
4) Piece of thin household plastic, cut to cover bottom and side
of the stopper.
5) A piece of double adhesive tape just big enough to fix the plastic
to the bottom of the stopper. And finally, wrap the plastic around the foam
and press the stopper into the pipe. Airtight, lightweight and will
stay in place.
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