My first stirling engine, gamma type. Displacer cylinder made of beer cans. Displacer piston is made of steel wool, tightly packed. Power cylinder made of aluminum mop handle. Power piston made of "quick steel" epoxy putty.
It works better on alcohol, but I in this movie tea candles are used because alcohol I got is mixed with some poisonous stuff which does not burn clean as well.
For this reason (low power input) the cooling system is not as useful as it was supposed to be, and I did not attach yet any gear to drive it using the engine's own power.
By now it produces enough energy to feed pretty strong flashlight. The type used here has a voltage converter inside, so low voltage is enough to power it. No high RPM or high ratio gear needed which is an advantage for this small engine.
Many thanks for other Stirling builders for inspiration!
