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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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WTF??? Or, adventures in resurrecting an old mill
I have a little Atlas MFC horizontal mill that I found at the dump. It
was pretty grungy, a little rusty, and had a God-awful paint job. So I stripped it down, cleaned it up, and painted it. I was reassembling it and did a dry run on the spindle outside its housing. There was the arbor-side bearing and its covers, the large back gear, dual pulley, small back gear, spacer, the other bearing & covers, another spacer, the feed take-off gear, and finally a threaded collar. It all went pretty well until the threaded collar. It would only go on about a 1/2 turn. Well, the first thread on the spindle was a little munged, so I cleaned that up with a file. The collar still wouldn't go on. But there was a bad spot where a set screw was tightened down. I cleaned that up and it was no better. Thinking that maybe a thread just needed to be straightened a little, I tried force. No good. AYE!! WTF?!?! Could the threads are different??? The spindle is 7/8 - 14, but the collar only had 3 threads on it and the pitch was kind of hard to measure. But it looked like it was 16 pitch!! To be sure, I turned a 7/8 - 16 external thread and the collar fit perfectly! How could that be? It was fitted together before I stripped it. Well, now that I mention it, the collar _was_ pretty hard to get off. But a 16 pitch collar on a 14 pitch spindle? Hard to believe. The fun part was making a 7/8 - 14 collar. First time since 1958 that I've turned internal threads (or any threads for that matter). It went good and it fits perfectly. Now you don't have to tell me that I could have bought one for $6 for MSC. I know that, but what's the fun in it? Making chips and having a ball, Bob |
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WTF??? Or, adventures in resurrecting an old mill
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WTF??? Or, adventures in resurrecting an old mill
On Wed, 21 Jan 2004 22:47:42 -0500, Bob Engelhardt
wrote: I have a little Atlas MFC horizontal mill that I found at the dump. It at the dump!!!! Wish I had a dump like that! Mickey |
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WTF??? Or, adventures in resurrecting an old mill
Bob Engelhardt wrote...
How could that be? It was fitted together before I stripped it. Well, now that I mention it, the collar _was_ pretty hard to get off. But a 16 pitch collar on a 14 pitch spindle? Hard to believe. Any chance that there's a similar collar elsewhere in the machine? Unlikely, perhaps, but it had to be asked... (G) Jim |
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WTF??? Or, adventures in resurrecting an old mill
In article , Bob Engelhardt says...
How could that be? It was fitted together before I stripped it. You kept them apart for too long. All mechanics know that if you keep stuff disassembled long enough, a) the holes don't line up any more, and b) the threads all change. Jim ================================================== please reply to: JRR(zero) at yktvmv (dot) vnet (dot) ibm (dot) com ================================================== |
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WTF??? Or, adventures in resurrecting an old mill
jim rozen wrote:
In article , Bob Engelhardt says... How could that be? It was fitted together before I stripped it. You kept them apart for too long. All mechanics know that if you keep stuff disassembled long enough, a) the holes don't line up any more, and b) the threads all change. Don't forget c) parts disappear HTH -- SATOR AREPO TENET OPERA ROTAS Have 5 nice days! John ****************************** --- ILN 000.000.001 --- |
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WTF??? Or, adventures in resurrecting an old mill
On Thu, 22 Jan 2004 21:33:29 GMT, John wrote:
jim rozen wrote: In article , Bob Engelhardt says... How could that be? It was fitted together before I stripped it. You kept them apart for too long. All mechanics know that if you keep stuff disassembled long enough, a) the holes don't line up any more, and b) the threads all change. Don't forget c) parts disappear HTH Maybe they're showing up here. I found some extras after reassembly of part of my car the other day. Al Moore Oh, and the car runs OK, so I'm sure that's not where they're from! |
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WTF??? Or, adventures in resurrecting an old mill
On Thu, 22 Jan 2004 21:33:29 GMT, John brought
forth from the murky depths: jim rozen wrote: In article , Bob Engelhardt says... How could that be? It was fitted together before I stripped it. You kept them apart for too long. All mechanics know that if you keep stuff disassembled long enough, a) the holes don't line up any more, and b) the threads all change. Don't forget c) parts disappear HTH Au contraire, mon ami. Parts multiply. There are spare parts once you're done putting it back together. =:-0 -- STOP THE SLAUGHTER! || http://diversify.com Boycott Baby Oil! || Programmed Websites |
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WTF??? Or, adventures in resurrecting an old mill
"Larry Jaques" wrote in message ... On Thu, 22 Jan 2004 21:33:29 GMT, John brought forth from the murky depths: jim rozen wrote: In article , Bob Engelhardt says... How could that be? It was fitted together before I stripped it. You kept them apart for too long. All mechanics know that if you keep stuff disassembled long enough, a) the holes don't line up any more, and b) the threads all change. Don't forget c) parts disappear HTH Au contraire, mon ami. Parts multiply. There are spare parts once you're done putting it back together. =:-0 -- STOP THE SLAUGHTER! || http://diversify.com Boycott Baby Oil! || Programmed Websites the infamous PLO "parts left over" |
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WTF??? Or, adventures in resurrecting an old mill
As physicists now know, there is some nonzero probability that any object
will, through quantum effects, tunnel from the workbench in your shop to Floyds Knobs, Indiana (unless your shop is already in Indiana, in which case the object will tunnel to Trotters, North Dakota). The smaller mass of the object, the higher the probability. Therefore, disassembled parts, particularly small ones, of machines disappear much faster than assembled machines. ;-) -- Greg http://www.depmco.com "John" wrote in message ... jim rozen wrote: In article , Bob Engelhardt says... How could that be? It was fitted together before I stripped it. You kept them apart for too long. All mechanics know that if you keep stuff disassembled long enough, a) the holes don't line up any more, and b) the threads all change. Don't forget c) parts disappear HTH -- SATOR AREPO TENET OPERA ROTAS Have 5 nice days! John ****************************** --- ILN 000.000.001 --- |
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WTF??? Or, adventures in resurrecting an old mill
In article , Greg Dermer says...
As physicists now know, there is some nonzero probability that any object will, through quantum effects, tunnel from the workbench in your shop to Floyds Knobs, Indiana (unless your shop is already in Indiana, in which case the object will tunnel to Trotters, North Dakota). The smaller mass of the object, the higher the probability. Therefore, disassembled parts, particularly small ones, of machines disappear much faster than assembled machines. The expectation function for tunnelling has an exponential factor in it. The springier the part, the higher the value. I think one of my small springs is now jammed in the mars rover motor assembly or something. Jim ================================================== please reply to: JRR(zero) at yktvmv (dot) vnet (dot) ibm (dot) com ================================================== |
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WTF??? Or, adventures in resurrecting an old mill
On 23 Jan 2004 14:00:14 -0800, jim rozen
wrote: In article , Greg Dermer says... As physicists now know, there is some nonzero probability that any object will, through quantum effects, tunnel from the workbench in your shop to Floyds Knobs, Indiana (unless your shop is already in Indiana, in which case the object will tunnel to Trotters, North Dakota). The smaller mass of the object, the higher the probability. Therefore, disassembled parts, particularly small ones, of machines disappear much faster than assembled machines. The expectation function for tunnelling has an exponential factor in it. The springier the part, the higher the value. I think one of my small springs is now jammed in the mars rover motor assembly or something. You gentlemen are overlooking one of the most fundamental laws of physics, however, the law of "propogation of stuff." For a demonstration of this law, enter any long disused empty room and see how much "stuff" has accumulated there since your last visit! Al Moore |
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WTF??? Or, adventures in resurrecting an old mill
Hey - I resemble that!
As a mere mortal, I have been noticing the effect for some years. One common path way is via the cuff of the pants of the person who lost the small item. Through slight of hand and animal cunning, cuffs were taken away for a time and only in fine suits... But alas, the sneaky things are finding other ways! Martin Greg Dermer wrote: As physicists now know, there is some nonzero probability that any object will, through quantum effects, tunnel from the workbench in your shop to Floyds Knobs, Indiana (unless your shop is already in Indiana, in which case the object will tunnel to Trotters, North Dakota). The smaller mass of the object, the higher the probability. Therefore, disassembled parts, particularly small ones, of machines disappear much faster than assembled machines. ;-) -- Greg http://www.depmco.com "John" wrote in message ... jim rozen wrote: In article , Bob Engelhardt says... How could that be? It was fitted together before I stripped it. You kept them apart for too long. All mechanics know that if you keep stuff disassembled long enough, a) the holes don't line up any more, and b) the threads all change. Don't forget c) parts disappear HTH -- SATOR AREPO TENET OPERA ROTAS Have 5 nice days! John ****************************** --- ILN 000.000.001 --- -- Martin Eastburn, Barbara Eastburn @ home at Lion's Lair with our computer NRA LOH, NRA Life NRA Second Amendment Task Force Charter Founder |
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WTF??? Or, adventures in resurrecting an old mill
On Fri, 23 Jan 2004 13:21:43 -0800, "Greg Dermer"
wrote: As physicists now know, there is some nonzero probability that any object will, through quantum effects, tunnel from the workbench in your shop to Floyds Knobs, Indiana (unless your shop is already in Indiana, in which case the object will tunnel to Trotters, North Dakota). The smaller mass of the object, the higher the probability. Therefore, disassembled parts, particularly small ones, of machines disappear much faster than assembled machines. Please! Can I use this for a sig? Pretty Please! Gunner "As physicists now know, there is some nonzero probability that any object will, through quantum effects, tunnel from the workbench in your shop to Floyds Knobs, Indiana (unless your shop is already in Indiana, in which case the object will tunnel to Trotters, North Dakota). The smaller mass of the object, the higher the probability. Therefore, disassembled parts, particularly small ones, of machines disappear much faster than assembled machines." Greg Dermer: rec.crafts.metalworking " ..The world has gone crazy. Guess I'm showing my age... I think it dates from when we started looking at virtues as funny. It's embarrassing to speak of honor, integrity, bravery, patriotism, 'doing the right thing', charity, fairness. You have Seinfeld making cowardice an acceptable choice; our politicians changing positions of honor with every poll; we laugh at servicemen and patriotic fervor; we accept corruption in our police and bias in our judges; we kill our children, and wonder why they have no respect for Life. We deny children their childhood and innocence- and then we denigrate being a Man, as opposed to a 'person'. We *assume* that anyone with a weapon will use it against his fellowman- if only he has the chance. Nah; in our agitation to keep the State out of the church business, we've destroyed our value system and replaced it with *nothing*. Turns my stomach- " Chas , rec.knives |
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WTF??? Or, adventures in resurrecting an old mill
Gunner, your signal-to-sig ratio has gone to hell! (G)
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WTF??? Or, adventures in resurrecting an old mill
Fdmorrison wrote:
I bet that one's not in the MSC catalog. Actually, it is. A testament to MSC's inventory. Jim Wilson wrote: Any chance that there's a similar collar elsewhere in the machine? ... No, not anything even close. And I kept the parts from each assembly together. jim rozen wrote: You kept them apart for too long. All mechanics know that if you keep stuff disassembled long enough, a) the holes don't line up any more, and b) the threads all change. Oh, right! John wrote: Don't forget c) parts disappear Also true. Larry Jaques wrote: Parts multiply. There are spare parts once you're done putting it back together. Even more true. As I put the mill back together, the number of extra parts keeps growing. With any luck, when I'm all done I'll have enough parts for some other machine. The "tunneling" effect somebody explained. Not only are my parts tunneling to Nebraska, but somebody else's parts are tunneling to me. I shoulda' paid more attention in my quantum physics class. Bob |
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WTF??? Or, adventures in resurrecting an old mill
A city wide blackout at Sat, 24 Jan 2004 14:02:16 -0500 did not prevent Bob
Engelhardt from posting to rec.crafts.metalworking the following: Larry Jaques wrote: Parts multiply. There are spare parts once you're done putting it back together. Even more true. As I put the mill back together, the number of extra parts keeps growing. With any luck, when I'm all done I'll have enough parts for some other machine. The "tunneling" effect somebody explained. Not only are my parts tunneling to Nebraska, but somebody else's parts are tunneling to me. I shoulda' paid more attention in my quantum physics class. I hadn't heard of this tunneling effect. I just know that each time I put the same engine back together, I have more extra parts. I was starting to consider a study to determine how many reassembling I would need before there would be only extra parts and no engine. tschus pyotr -- pyotr filipivich. as an explaination for the decline in the US's tech edge, James Niccol wrote "It used to be that the USA was pretty good at producing stuff teenaged boys could lose a finger or two playing with." |
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WTF??? Or, adventures in resurrecting an old mill
pyotr filipivich wrote:
... a study to determine how many reassembling I would need before there would be only extra parts and no engine. LOL Good one! |
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WTF??? Or, adventures in resurrecting an old mill
On Sun, 25 Jan 2004 21:23:59 GMT, pyotr filipivich
wrote: A city wide blackout at Sat, 24 Jan 2004 14:02:16 -0500 did not prevent Bob Engelhardt from posting to rec.crafts.metalworking the following: Larry Jaques wrote: Parts multiply. There are spare parts once you're done putting it back together. Even more true. As I put the mill back together, the number of extra parts keeps growing. With any luck, when I'm all done I'll have enough parts for some other machine. The "tunneling" effect somebody explained. Not only are my parts tunneling to Nebraska, but somebody else's parts are tunneling to me. I shoulda' paid more attention in my quantum physics class. I hadn't heard of this tunneling effect. I just know that each time I put the same engine back together, I have more extra parts. I was starting to consider a study to determine how many reassembling I would need before there would be only extra parts and no engine. tschus pyotr Oh oh..now we know where that worm hole exits too. They are model specific. Gunner "As physicists now know, there is some nonzero probability that any object will, through quantum effects, tunnel from the workbench in your shop to Floyds Knobs, Indiana (unless your shop is already in Indiana, in which case the object will tunnel to Trotters, North Dakota). The smaller mass of the object, the higher the probability. Therefore, disassembled parts, particularly small ones, of machines disappear much faster than assembled machines." Greg Dermer: rec.crafts.metalworking |
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