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My stirling ! all made of aluminium 6061 , piston, cylinder, hot zone ...
https://www.youtube.com/watch?v=LiX3Hv3xNQw
https://www.youtube.com/watch?v=QNMjxxW ... e=youtu.be
https://www.youtube.com/watch?v=0u0Euqs ... e=youtu.be
Thanh .
my lathe, I made it
https://drive.google.com/drive/folders/ ... FUxRnNucDA

Wow! You certainly have the knack for making a lathe. Very impressive - Damn well made and congratulations on the small hot air engine you have made in aluminium. Just killed my remarks to Masaruneema Hee! Hee! At least he will be able to see that alloy does work in these small engines.
Trev

I'd made of aluminum because it is easy to work and is so small engine so I think aluminum ok! And I did it !! piston, displacer, hot zone , cold zone.., all aluminum. I was looking for graphite to made piston but find none, and Ian SC showed me how to do cylinder, piston ..
   I did step by step ... and learned a lot !!
  (Sorry ... I do not use English for a long time !!)