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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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#1
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left hand boring bar
looking for a left hand boring bar; C6 or m42 tip , small radius
cutting edge is acceptable. Anybody got a lead on where I can buy one of these? Thanks Mike Will be in LV for Christmas (steve?) |
#2
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left hand boring bar
"mikec" wrote in message ... looking for a left hand boring bar; C6 or m42 tip , small radius cutting edge is acceptable. Anybody got a lead on where I can buy one of these? Thanks Mike Will be in LV for Christmas (steve?) Why? Explain the job and you might get a better idea how to do it. |
#3
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left hand boring bar
looking for a left hand boring bar; C6 or m42 tip , small radius cutting edge is acceptable. Anybody got a lead on where I can buy one of these? .... Why? Explain the job and you might get a better idea how to do it. The only thing i could think of is left hand inside threading, but he's not looking for a thread tool. But it got me thinking, I don't know how to cut a left hand thread on my manual lathe anyway. How is this done? |
#4
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left hand boring bar
The only thing i could think of is left hand inside threading, but he's not
looking for a thread tool. Boring a hole with a bridgeport in back gear? Except you can reverse the rotation on the motor. Double chuck CNC lathe, and he needs tooling for the finish operations in the 2nd chuck? But it got me thinking, I don't know how to cut a left hand thread on my manual lathe anyway. How is this done? Simply put, spindle running forwards, thread away from the headstock; or thread towards the headstock with the spindle in reverse. Note that you'll have to change the relief on the cutting tool to compensate. --Glenn Lyford |
#5
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left hand boring bar
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#6
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left hand boring bar
On Thu, 17 Dec 2009 05:46:13 -0600, "Karl Townsend"
wrote: looking for a left hand boring bar; C6 or m42 tip , small radius cutting edge is acceptable. Anybody got a lead on where I can buy one of these? ... Why? Explain the job and you might get a better idea how to do it. The only thing i could think of is left hand inside threading, but he's not looking for a thread tool. But it got me thinking, I don't know how to cut a left hand thread on my manual lathe anyway. How is this done? You'll need one if you put it in the side hole of a boring head :-) Mark Rand RTFM |
#7
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left hand boring bar
On Dec 17, 10:28*am, Mark Rand wrote:
On Thu, 17 Dec 2009 05:46:13 -0600, "Karl Townsend" wrote: looking for a left hand boring bar; C6 or m42 tip , small radius cutting edge is acceptable. Anybody got a lead on where I can buy one of these? ... Why? *Explain the job and you might get a better idea how to do it. The only thing i could think of is left hand inside threading, but he's not looking for a thread tool. But it got me thinking, I don't know how to cut a left hand thread on my manual lathe anyway. How is this done? You'll need one if you put it in the side hole of a boring head :-) Mark Rand RTFM EXACTLY!!! That is what I'm doing.......very large hole. |
#8
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left hand boring bar
Note: E-mailed *and* posted.
In article , mikec wrote: :On Dec 17, 10:28=A0am, Mark Rand wrote: : On Thu, 17 Dec 2009 05:46:13 -0600, "Karl Townsend" : : wrote: : : looking for a left hand boring bar; C6 or m42 tip , small radius : cutting edge is acceptable. Anybody got a lead on where I can buy one : of these? : ... : Why? =A0Explain the job and you might get a better idea how to do it. : : The only thing i could think of is left hand inside threading, but he's = :not : looking for a thread tool. But it got me thinking, I don't know how to c= :ut a : left hand thread on my manual lathe anyway. How is this done? : : You'll need one if you put it in the side hole of a boring head :-) : : Mark Rand : RTFM : :EXACTLY!!! That is what I'm doing.......very large hole. Your mill can't run its spindle in reverse????????????? -- Bob Nichols AT comcast.net I am "RNichols42" |
#9
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left hand boring bar
"mikec" wrote in message ... On Dec 17, 10:28 am, Mark Rand wrote: On Thu, 17 Dec 2009 05:46:13 -0600, "Karl Townsend" wrote: looking for a left hand boring bar; C6 or m42 tip , small radius cutting edge is acceptable. Anybody got a lead on where I can buy one of these? ... Why? Explain the job and you might get a better idea how to do it. The only thing i could think of is left hand inside threading, but he's not looking for a thread tool. But it got me thinking, I don't know how to cut a left hand thread on my manual lathe anyway. How is this done? You'll need one if you put it in the side hole of a boring head :-) Mark Rand RTFM EXACTLY!!! That is what I'm doing.......very large hole. We never had any of them fancy "Store-Bought" tools when I was young. We made boring bars by drilling a hole in a steel bar. I have some that the hole is drilled at a 45 deg angle and some perpendicular. A HHS tool bit fits in the hole and is held with a set screw. |
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