Stirlingengineforum.com

I had designed this one...please kindly open this link.... http://i57.tinypic.com/259uxdc.jpg ...
All dimensions are in millimeters.... any advice?

how to close a perforated tube if there is a hollow tube side? , by means of welding?

and what is the purpose of making a thin wall Ian S C...?

how can you make that extremely thin Ian S C... i have try to make it , but the result is fail such as the shape is not circle anymore because of the press on a lathe.. and how can you weld the thin walls... thin walls can be damaged when welding such as the thin walls is not flat again or bumpy... ...

how about the thickness of Heylandt crown ... ?
I plan to create 1 mm the thickness of Heylandt crown... is that okay ?

This is another image...
http://imageshack.com/a/img540/559/03LUQU.jpg

thanks for your response Ian S C...
how about the weight of cold piston and heat piston... ?

I make weight of piston Heylandt Crown 165gram and piston cold 45 gram... how heavy piston do you make Ian S C?

Ooh... i understand where is a Heylandt Crown... is that patch on the heat piston ? But i have one question in my mind... is that vacuum in the Heylandt crown...? Like this image...i hope anyone give me a advice... thanks for your help... http://imagizer.imageshack.us/a/img909/7640/nLPhYC.jpg thanks...

Sorry... i still didn't found a Heylandt Crown in Andy Ross's book.. can u explain where is a Heylandt Crown ? Is that at the burning side like a cap? Thanks...

Thanks for your advice Aviator168....
first i will make the ratio 1:1.5 into 1:1 with extend the diameter power piston hot side 30mm into 36mm... the diameter piston cold side is 36mm... any advice?

Tq for your help Ian S C... I already saw video Inside a Stirling Engine Andy Ross Stirling Engine Kit Design ... inside that stirling has a piston and a long piston like displacer piston... is that true long piston is displacer? If not, why piston in the hot side longer than piston in the cold side...

Hi... i am new here...
i have built type alpha V-type with ratio displacment 1.5:1... but it doesn't work... in type beta and gamma the ratio is 1.5:1... can i use that ratio in type alpha?