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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#41
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Achieving fine finish on turned parts
On Sun, 03 Aug 2008 13:18:41 -0700, with neither quill nor qualm,
Gunner Asch quickly quoth: On Sun, 03 Aug 2008 05:35:24 -0700, Larry Jaques wrote: On Sat, 02 Aug 2008 14:16:33 -0700, with neither quill nor qualm, Gunner Asch quickly quoth: One of the better dual purpose oils..is plain jane ATF Does Ed's Red work for cutting/drilling/tapping, too? Id imagine that it would, but it would be right expensive. ATF bought at the 99c store works well enough Ah, good sourcing/pricing tip there. Danke, señor. Personally..I use high sulphur oil at home in the shop. Stinky, smokey and attracts dust on the machines between uses here in the desert..but is really hard to beat for most everything. I hear that sulfur is like lead and softens the contact a bit. -- Every day above ground is a Good Day(tm). ----------- |
#42
Posted to rec.crafts.metalworking
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Achieving fine finish on turned parts
On Sun, 03 Aug 2008 18:45:30 -0400, Wes wrote:
Don Foreman wrote: Seat cartridge in (cylindrical) caseholder from Wilson case trimmer. Chuck that up in lathe, drill and tap. I thought about that after I posted, using a reloading die held in a chuck and taking a very light cut drilling while keeping the exposed case head from rotating in the die would likely work also. What cartridge was it? If it was a bottleneck shouldn't you have retained the shoulder? .22-250. If you mean the neck, then the bullet would stick in it. The rod is stiff enough that the bullet doesn't droop much, and the fit of rod to hole has no perceptible wiggle. So the bullet stays pretty well centered and square, and the rifling lands have enough of a taper on the start to sorta guide the ogive into place. I use just light finger pressure on the end of the rod, set the rodlock. A series of measurements repeated to a bit over a thou, close enough for my purposes. http://www.neconos.com/22-250.jpg Seems like you could have kept the shoulder but if it is working for you, it solves the problem. You have Quickdesign! Are you doing wildcats? Thank you again for giving me one more idea of things to build. A friend is getting interested in making a case neck annealing device, which I'd think might be real useful when working with wildcat cartridges. He's studied the ones offered by Ken Light and others. I'll be goin' on a scrounging mission next week for rawstock. |
#43
Posted to rec.crafts.metalworking
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Achieving fine finish on turned parts
On Sun, 03 Aug 2008 22:23:01 -0500, Don Foreman
wrote: On Sun, 03 Aug 2008 18:45:30 -0400, Wes wrote: Don Foreman wrote: Seat cartridge in (cylindrical) caseholder from Wilson case trimmer. Chuck that up in lathe, drill and tap. I thought about that after I posted, using a reloading die held in a chuck and taking a very light cut drilling while keeping the exposed case head from rotating in the die would likely work also. What cartridge was it? If it was a bottleneck shouldn't you have retained the shoulder? .22-250. If you mean the neck, then the bullet would stick in it. The rod is stiff enough that the bullet doesn't droop much, and the fit of rod to hole has no perceptible wiggle. So the bullet stays pretty well centered and square, and the rifling lands have enough of a taper on the start to sorta guide the ogive into place. I use just light finger pressure on the end of the rod, set the rodlock. A series of measurements repeated to a bit over a thou, close enough for my purposes. http://www.neconos.com/22-250.jpg Seems like you could have kept the shoulder but if it is working for you, it solves the problem. You have Quickdesign! Are you doing wildcats? Thank you again for giving me one more idea of things to build. A friend is getting interested in making a case neck annealing device, which I'd think might be real useful when working with wildcat cartridges. He's studied the ones offered by Ken Light and others. I'll be goin' on a scrounging mission next week for rawstock. Do it right and make an induction heater....G Gunner The hottest places in hell are reserved for those who in times of great moral crisis maintain their neutrality", John F. Kennedy. |
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