Secondary Machining, Protection for parts
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All Springer/NP/PCP Air Gun Discussion General
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Machine Shop Talk & AG Parts Machining
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Secondary Machining, Protection for parts
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Topic: Secondary Machining, Protection for parts (Read 263 times))
luge007
"What ever, just crash it!" (kid from 1980's Toyota Cienna crash testing commercial)
Plinker
Posts: 293
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Real Name: Matt
Secondary Machining, Protection for parts
«
on:
December 28, 2019, 12:28:57 PM »
This has probably been covered before, but I have still seen people using tape to cover machined parts to protect them from damage on secondary operations. Tape works ok on some things but not great on sharp threads and such, and the accuracy may not be the best as the tape can crush differently for a given jaw etc. That and it can be difficult to pick the tape out of the threads afterwards if over tightened..... yeah I am still learning.
Anyway, this is certainly not a new idea, but it works very well and is so simple: a set of protective shims for lathe jaws. I made a thin brass set and an aluminum set out of some roofing flashing in under 4 min. Yes, collets work extremely well too, but they can be very expensive for the hobby machinist and the shims work pretty darn well, though can be a little tricky to get into position after a double espresso.
Also for turning between centers I made two aluminum cones that go over existing steel centers to keep from damaging finished crowns or breaches while threading or turning which work fantastic.
If you haven't already made these, they make a great rainy day project and SO useful.
Cheers,
M
Logged
USA, RI, SK
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Secondary Machining, Protection for parts