Let's Build a Can Stirling Engine

Step 4 - Make a Diaphragm

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You will make a diaphragm using a rubber balloon. As shown in the following figure, cut the balloon and reinforce it by pasting the card boards. Make a hole in the center of the diaphragm and pass through a fishing thread. Be careful to make a close-fitting hole - not a big hole.

Make a Diaphgram

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Koichi Hirata