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Bonehead of the Day

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Sailplane Driver

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Feb 15, 2015
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#1
I'm building Jan Ritters flame eater engine engine. I changed the threaded fastener sizes from meteric to US standard imperal sizes. I was stumped why the external threads I was putting on the brass supports came out undersized and would pull out of the threaded holes in the cylinder. I then realized that I had used the wrong column in the threading table - minor diameter instead of major diameter. I think I now have a 6-32 instead of an 8-32. Now to cut off the threads and put in studs. DUH.
 

T Bredehoft

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#2
That (or something like it) happens to us all. No worries, just start over.
 

tjb

Terry
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#3
Been there, done that more than once. I'm usually relieved that no one's in the shop when I realize what I did.
 

dlane

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#4
Build you a stand for your engine,
The world went bone head
 
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