[modeleng] Re: Mystery Thread & New Loco

I generally thread at whatever speed that I think is "about right" and this 
is frequently anywhere from 500 to 1,100 rpm.  I sort of go by how my fast 
my reaction time is plus how fast the threading dial is revolving.  Too fast 
and it is easy to miss the point to flip in the half nut, too slow and I may 
fall asleep waiting for the dial to make it to the timing mark. [:-) 
Generally, I leave a groove at the end of the thread so when I kick out the 
half nut, the spindle can continue to revolve till I retract the tool.

Once I threaded an 8tpi that as an experiment, I had the thread end 
perfectly.  I had to run at 25rpm and keep my hand on the cross feed so I 
could pull the tool out when it reached the end of the thread.  Showed the 
thread to a machinist friend and he didn't have a clue as to how that thread 
ended so abruptly, just wasn't natural!

Jesse the Tennessee redneck 

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