Dear all,
I acknowledge your nice comments very much.
Do you intend to show more here about your alpha Stirling project? I for one would enjoy it.--Tim
Tim, certainly I will report about this project in the future. But it needs some more preconditions to realize, similar like this coolerfins challenge.
The alpha Stirling engine is a conversion on base of an existing twin air compressor.
Even with that, it looks like a LOT of work to cut all those internal cooling fins.
Kim
Kim, you are definitely right, it needs nevertheless a considerable number of hours to mill the slots.
But this was my way which are realistic for me.
There are a number of possibilities thinkable for producing slots:
key-slotting (manually or motorized), EDM processing, to buy an extruded part used in electronics bussiness, soldering fins, a milling process and so on.
Key-slotting manually I did in the past with only 3mm deep cooler slots; it was a very exhausting job (more than 100 slots). Never want going this way again.
EDM I donot have the possibility.
Soldering fins followed by additional lathe work would need to change the material choise to brass.
An extruded cooler would be the easiest way, but nothing in this size found on the market.
So, I finalized in my milling solution.
Thank you all again for these motivating comments
Richard