Help! > Mistakes, muckups, and dangerous behaviour
"Senior moment"
scc:
Started on the water pick-up casting for my Burrell. Set up in 4jaw, do all internal stuff, get out "Zeus" thread book and check o/d for 3/4 bsp, machine casting to 1.041 in. Go for dinner...return to shop and check book for TPI and set up change wheels to suit. Cut good thread then notice my 3/4 bsp tap for the nut is 14tpi :noidea: I have just cut 10tpi on the casting having read for 3/4bsw on the adjacent page :facepalm: What a good job I have to make the nut as well,,,,,no one will ever notice :naughty:
You all have a good Easter Terry
crueby:
It's always satisfying to make something precisely, perfectly wrong!
gerritv:
Yet another advantage to single point threading, made to fit :-)
I recently cut several 1/2-40 and 5/16-40 ME internal and external threads, all at 60° because I only realized later on it was supposed to be 55°. Fit great of course.
gerrit
b.lindsey:
Easter Bunny poop happens. At least you can recover from it though. My last faux pas was unrecoverable.
Bill
PJPickard:
Since I teach a lot of engineering students...many learn the "making something perfectly wrong" thing the hard way. We all did(do) ;)
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