Folks,...
I have asked previously, on several forums, if anyone has solid evidence as to how L&L produced the delicate idle bleed slots.
One source swore that they used a "dental drill". That's nice, but even today, .008"-.0015" endmills that will cut .030" deep do not exist.
Just producing the cutters to produce a million slots would be an achievement that exceeds the rest of the venture.
Punching seems reasonable, but that's still an engineering feat, to produce no signs of burring or distortions.
How do you make punch guides that narrow and that deep? And wouldn't they have to be punched before they were finish bored?
Hardly seems practical.
The reason I bring this back up is because a rare pre-War Linkert came in where somebody had a "better idea" and ran a 1/16" drill bit through the large hole, about twice what it should be.
If I close the hole back up, I must then somehow re-cut the delicate .009" idle slot.
Thanks for any real help in advance,
....Cotten
I have asked previously, on several forums, if anyone has solid evidence as to how L&L produced the delicate idle bleed slots.
One source swore that they used a "dental drill". That's nice, but even today, .008"-.0015" endmills that will cut .030" deep do not exist.
Just producing the cutters to produce a million slots would be an achievement that exceeds the rest of the venture.
Punching seems reasonable, but that's still an engineering feat, to produce no signs of burring or distortions.
How do you make punch guides that narrow and that deep? And wouldn't they have to be punched before they were finish bored?
Hardly seems practical.
The reason I bring this back up is because a rare pre-War Linkert came in where somebody had a "better idea" and ran a 1/16" drill bit through the large hole, about twice what it should be.
If I close the hole back up, I must then somehow re-cut the delicate .009" idle slot.
Thanks for any real help in advance,
....Cotten
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