This is my first beta stirling engine !!

[Administrator]

I can't seem to get my head around how that elegantly machined crankshaft works-- it looks like one piece has to go thru itself!?

(Obviously not.) Do you have closeups of that particular bit?

Lovely work.

Here is the best view of it. It forms a "crankshaft" like a car engine.

[thanh-cuibap]

Thanks Boydhouse !!
maybe ...to understand, I redrawn.

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