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- Jan 19, 2010
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A few months ago my freind bought a walking beam stirling engine kit from Grizzly. also available at Littlemachineshop.com.
My concern with this is the aluminum cylinder. It came with a 13mm piston already made, and the cylinder needs to be made. It is a blind hole.
I have never used aluminum for a cylinder.
What should I use to make the bore? He bought a 13mm drill bit for this purpose, but I worry this would leave a bad hole. I also have a boring head, but no real accurate way of measuring the bore. In th past I have always made the cylinder first, and then fit the piston to it.
So, has anybody built this? If so, how did you make the bore for the brass piston?
kel
PS.
This might seem backwards and stupid, but what If I used the boring head to bore the hole to a few though less than 13mm and then used the 13mm drill bit to finish the hole to size?
My concern with this is the aluminum cylinder. It came with a 13mm piston already made, and the cylinder needs to be made. It is a blind hole.
I have never used aluminum for a cylinder.
What should I use to make the bore? He bought a 13mm drill bit for this purpose, but I worry this would leave a bad hole. I also have a boring head, but no real accurate way of measuring the bore. In th past I have always made the cylinder first, and then fit the piston to it.
So, has anybody built this? If so, how did you make the bore for the brass piston?
kel
PS.
This might seem backwards and stupid, but what If I used the boring head to bore the hole to a few though less than 13mm and then used the 13mm drill bit to finish the hole to size?