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#42
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I leave them in place all the time and forget about using the fragile 5/8" thread and just use the 3/8" which seems to be totally rugged. Graham This has probably been covered before, but.... Does anyone know how/why the audio world (USA subset)decided on the unusual 5/8 -27 thread type for mic/stand hardware? Is it a legacy left over from something else that we no longer use, or ....? It just seems like too fine a thread for hardware that large. (just try and find any 5/8 - 27 fittings in even a well-stocked hardware store) steve |
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#43
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I leave them in place all the time and forget about using the fragile 5/8" thread and just use the 3/8" which seems to be totally rugged. Graham This has probably been covered before, but.... Does anyone know how/why the audio world (USA subset)decided on the unusual 5/8 -27 thread type for mic/stand hardware? Is it a legacy left over from something else that we no longer use, or ....? It just seems like too fine a thread for hardware that large. (just try and find any 5/8 - 27 fittings in even a well-stocked hardware store) steve |
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#44
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Whitworth is a British standard which which was pretty much obsolete in the 60's. It's the same pitch and diameter, but 55º versus 60º threads. Only the fuel system and carburetors use Whitworth on my '68 E-Type. Vivid memories of old Triumphs and MG's appear in my mind... Kurt, you may be correct that they are Whitworth, (BSW 3/8) but it absolutely boggles my mind that anybody, especially a European mainland country, would use a Whitworth thread for anything in this day and age. I checked the threads on my booms very carefully and several adapters that I have and could not detect that 5 degree thread difference. I'll have to check with my buddy who repairs old British motorcycles. He has the proper thread gauges. Richard H. Kuschel "I canna change the law of physics."-----Scotty |
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#45
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Whitworth is a British standard which which was pretty much obsolete in the 60's. It's the same pitch and diameter, but 55º versus 60º threads. Only the fuel system and carburetors use Whitworth on my '68 E-Type. Vivid memories of old Triumphs and MG's appear in my mind... Kurt, you may be correct that they are Whitworth, (BSW 3/8) but it absolutely boggles my mind that anybody, especially a European mainland country, would use a Whitworth thread for anything in this day and age. I checked the threads on my booms very carefully and several adapters that I have and could not detect that 5 degree thread difference. I'll have to check with my buddy who repairs old British motorcycles. He has the proper thread gauges. Richard H. Kuschel "I canna change the law of physics."-----Scotty |
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#46
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I leave them in place all the time and forget about using the fragile 5/8" thread and just use the 3/8" which seems to be totally rugged. Graham This has probably been covered before, but.... Does anyone know how/why the audio world (USA subset)decided on the unusual 5/8 -27 thread type for mic/stand hardware? Is it a legacy left over from something else that we no longer use, or ....? It just seems like too fine a thread for hardware that large. (just try and find any 5/8 - 27 fittings in even a well-stocked hardware store) steve I think that the -27 thread pitch has its origins in electrical connections but cannot confirm this Scott?--Anyone? Richard H. Kuschel "I canna change the law of physics."-----Scotty |
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#47
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I leave them in place all the time and forget about using the fragile 5/8" thread and just use the 3/8" which seems to be totally rugged. Graham This has probably been covered before, but.... Does anyone know how/why the audio world (USA subset)decided on the unusual 5/8 -27 thread type for mic/stand hardware? Is it a legacy left over from something else that we no longer use, or ....? It just seems like too fine a thread for hardware that large. (just try and find any 5/8 - 27 fittings in even a well-stocked hardware store) steve I think that the -27 thread pitch has its origins in electrical connections but cannot confirm this Scott?--Anyone? Richard H. Kuschel "I canna change the law of physics."-----Scotty |
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#48
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hollywood_steve wrote: This has probably been covered before, but.... Does anyone know how/why the audio world (USA subset)decided on the unusual 5/8 -27 thread type for mic/stand hardware? Is it a legacy left over from something else that we no longer use, or ....? It just seems like too fine a thread for hardware that large. (just try and find any 5/8 - 27 fittings in even a well-stocked hardware store) Just for fun - some UK threads were 5/8 - 26 ! You could screw mismatching ( 26&27 ) parts a few turns but not much more. The 3/8" thread makes *far* more sense to me. Graham |
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#49
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hollywood_steve wrote: This has probably been covered before, but.... Does anyone know how/why the audio world (USA subset)decided on the unusual 5/8 -27 thread type for mic/stand hardware? Is it a legacy left over from something else that we no longer use, or ....? It just seems like too fine a thread for hardware that large. (just try and find any 5/8 - 27 fittings in even a well-stocked hardware store) Just for fun - some UK threads were 5/8 - 26 ! You could screw mismatching ( 26&27 ) parts a few turns but not much more. The 3/8" thread makes *far* more sense to me. Graham |
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#50
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Richard Kuschel wrote:
They are not Whitworth. They look very similar to Whitworth. They are standard 3/8 by 16 thread. Which 'standard' is that ? American UNC ? Whitworth is a British standard which which was pretty much obsolete in the 60's. So was BA - but it lived on for a while. Metric threads are mainly used here in the UK now but I'm not convinced that they are always the most practical for a given job. Graham |
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#51
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Richard Kuschel wrote:
They are not Whitworth. They look very similar to Whitworth. They are standard 3/8 by 16 thread. Which 'standard' is that ? American UNC ? Whitworth is a British standard which which was pretty much obsolete in the 60's. So was BA - but it lived on for a while. Metric threads are mainly used here in the UK now but I'm not convinced that they are always the most practical for a given job. Graham |
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#52
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Richard Kuschel wrote: Kurt, you may be correct that they are Whitworth, (BSW 3/8) but it absolutely boggles my mind that anybody, especially a European mainland country, would use a Whitworth thread for anything in this day and age. Because it works for the job it's designed to do ? When I did theatre stage lighting just about everything ( lanterns clamps etc ) was held together with 5/8" Whitworth. Nice easy thread to work with - durable and strong. Graham |
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#53
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Richard Kuschel wrote: Kurt, you may be correct that they are Whitworth, (BSW 3/8) but it absolutely boggles my mind that anybody, especially a European mainland country, would use a Whitworth thread for anything in this day and age. Because it works for the job it's designed to do ? When I did theatre stage lighting just about everything ( lanterns clamps etc ) was held together with 5/8" Whitworth. Nice easy thread to work with - durable and strong. Graham |
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#54
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#56
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On or about 21 Sep 2004 14:03:51 GMT, Richard Kuschel allegedly wrote:
Whitworth is a British standard which which was pretty much obsolete in the 60's. They are still around in many uses. Just that metric is used in almost all equipment these days. But I can still go to a hardware shop here and get Whit threads, they are quite regularly used for odd hardware needs. Whitworth bolt and nut head sizes though, were 'pretty much obsolete in the 60's', having been replaced by AF (across the flat) heads. I was a toolmaker in a former life, in the 70s and 80s. Noel Bachelor noelbachelorAT(From:_domain) Language Recordings Inc (Darwin Australia) |
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#57
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On or about 21 Sep 2004 14:03:51 GMT, Richard Kuschel allegedly wrote:
Whitworth is a British standard which which was pretty much obsolete in the 60's. They are still around in many uses. Just that metric is used in almost all equipment these days. But I can still go to a hardware shop here and get Whit threads, they are quite regularly used for odd hardware needs. Whitworth bolt and nut head sizes though, were 'pretty much obsolete in the 60's', having been replaced by AF (across the flat) heads. I was a toolmaker in a former life, in the 70s and 80s. Noel Bachelor noelbachelorAT(From:_domain) Language Recordings Inc (Darwin Australia) |
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#58
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On 22 Sep 2004 07:20:45 -0400, (Mike Rivers)
wrote: The "discussion" that you seem to be fretting about is to tell you that you won't be successful if you use a die. Wouldn't a die work if you hack sawed off the end of the stand with the messed up threads, and cut the threads on the clean end of the stand, now 1/2 " or so shorter? Willie K. Yee, M.D. http://users.bestweb.net/~wkyee Developer of Problem Knowledge Couplers for Psychiatry http://www.pkc.com Webmaster and Guitarist for the Big Blue Big Band http://www.bigbluebigband.org |
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#59
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On 22 Sep 2004 07:20:45 -0400, (Mike Rivers)
wrote: The "discussion" that you seem to be fretting about is to tell you that you won't be successful if you use a die. Wouldn't a die work if you hack sawed off the end of the stand with the messed up threads, and cut the threads on the clean end of the stand, now 1/2 " or so shorter? Willie K. Yee, M.D. http://users.bestweb.net/~wkyee Developer of Problem Knowledge Couplers for Psychiatry http://www.pkc.com Webmaster and Guitarist for the Big Blue Big Band http://www.bigbluebigband.org |
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#60
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This was the whole point of my original post of this thread. The price
of the die (around $18) will pay for itself after the first couple of stands. I use an electrical pipe cutter, though, rather than a hack saw. Willie K.Yee, M.D. wrote: .... Wouldn't a die work if you hack sawed off the end of the stand with the messed up threads, and cut the threads on the clean end of the stand, now 1/2 " or so shorter? |
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#61
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This was the whole point of my original post of this thread. The price
of the die (around $18) will pay for itself after the first couple of stands. I use an electrical pipe cutter, though, rather than a hack saw. Willie K.Yee, M.D. wrote: .... Wouldn't a die work if you hack sawed off the end of the stand with the messed up threads, and cut the threads on the clean end of the stand, now 1/2 " or so shorter? |
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#62
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Willie K.Yee, M.D. wkyeeATbestwebDOTnet wrote:
On 22 Sep 2004 07:20:45 -0400, (Mike Rivers) wrote: The "discussion" that you seem to be fretting about is to tell you that you won't be successful if you use a die. Wouldn't a die work if you hack sawed off the end of the stand with the messed up threads, and cut the threads on the clean end of the stand, now 1/2 " or so shorter? No, because they are made with rolled threads, not cut ones. The threads extend out past the edge of the pipe, rather than being cut into the pipe. Rolled threads are much weaker than cut ones too, and once they are lost there's not much you can do. It's a lot faster and cheaper to make them, though. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
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#63
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Willie K.Yee, M.D. wkyeeATbestwebDOTnet wrote:
On 22 Sep 2004 07:20:45 -0400, (Mike Rivers) wrote: The "discussion" that you seem to be fretting about is to tell you that you won't be successful if you use a die. Wouldn't a die work if you hack sawed off the end of the stand with the messed up threads, and cut the threads on the clean end of the stand, now 1/2 " or so shorter? No, because they are made with rolled threads, not cut ones. The threads extend out past the edge of the pipe, rather than being cut into the pipe. Rolled threads are much weaker than cut ones too, and once they are lost there's not much you can do. It's a lot faster and cheaper to make them, though. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
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#64
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In article wkyeeATbestwebDOTnet writes: Wouldn't a die work if you hack sawed off the end of the stand with the messed up threads, and cut the threads on the clean end of the stand, now 1/2 " or so shorter? No. The outside diameter of the tube is too small and the threads that the die cuts will be very shallow. They'll look like threads and you can screw something on to them, but it will strip easily. The orignal threads are "rolled" which means that rather than cutting metal away from a piece that's the diameter of the bottom of the threads (too large to slip through a nut), the metal is pushed up so the threaded part endes up being larger in diameter than the original metal stock. -- I'm really Mike Rivers ) However, until the spam goes away or Hell freezes over, lots of IP addresses are blocked from this system. If you e-mail me and it bounces, use your secret decoder ring and reach me he double-m-eleven-double-zero at yahoo |
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#65
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In article wkyeeATbestwebDOTnet writes: Wouldn't a die work if you hack sawed off the end of the stand with the messed up threads, and cut the threads on the clean end of the stand, now 1/2 " or so shorter? No. The outside diameter of the tube is too small and the threads that the die cuts will be very shallow. They'll look like threads and you can screw something on to them, but it will strip easily. The orignal threads are "rolled" which means that rather than cutting metal away from a piece that's the diameter of the bottom of the threads (too large to slip through a nut), the metal is pushed up so the threaded part endes up being larger in diameter than the original metal stock. -- I'm really Mike Rivers ) However, until the spam goes away or Hell freezes over, lots of IP addresses are blocked from this system. If you e-mail me and it bounces, use your secret decoder ring and reach me he double-m-eleven-double-zero at yahoo |
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#66
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Funny. I just went and looked at the threads on my old (and new) Atlas
12C stands and none of them look like rolled threads. Are you talking about different stands? Mike Rivers wrote: In article wkyeeATbestwebDOTnet writes: Wouldn't a die work if you hack sawed off the end of the stand with the messed up threads, and cut the threads on the clean end of the stand, now 1/2 " or so shorter? No. The outside diameter of the tube is too small and the threads that the die cuts will be very shallow. They'll look like threads and you can screw something on to them, but it will strip easily. The orignal threads are "rolled" which means that rather than cutting metal away from a piece that's the diameter of the bottom of the threads (too large to slip through a nut), the metal is pushed up so the threaded part endes up being larger in diameter than the original metal stock. |
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#67
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Funny. I just went and looked at the threads on my old (and new) Atlas
12C stands and none of them look like rolled threads. Are you talking about different stands? Mike Rivers wrote: In article wkyeeATbestwebDOTnet writes: Wouldn't a die work if you hack sawed off the end of the stand with the messed up threads, and cut the threads on the clean end of the stand, now 1/2 " or so shorter? No. The outside diameter of the tube is too small and the threads that the die cuts will be very shallow. They'll look like threads and you can screw something on to them, but it will strip easily. The orignal threads are "rolled" which means that rather than cutting metal away from a piece that's the diameter of the bottom of the threads (too large to slip through a nut), the metal is pushed up so the threaded part endes up being larger in diameter than the original metal stock. |
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#68
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#69
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#71
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That makes sense with stands coming from outside the States. They are
manufactured to metric standards, then adapted for the US (that pinned insert at the top). I found that out when I tried to mate an Atlas stand to an Ultimate base (the ones that stack). Obviously rethreading will only work on stands made in the US with the actual 5/8" tube. Mike Rivers wrote: .... One group of stands that I have here which have tubing that clearly can't be re-threaded with a die are the K&M booms. But those have threaded solid inserts pinned into the end, so the tubing isn't the threaded part. I had one of those where the insert was lost and I tried to thread the tubing. It was too small and the threads would only hold a couple of mic clips. |
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#72
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That makes sense with stands coming from outside the States. They are
manufactured to metric standards, then adapted for the US (that pinned insert at the top). I found that out when I tried to mate an Atlas stand to an Ultimate base (the ones that stack). Obviously rethreading will only work on stands made in the US with the actual 5/8" tube. Mike Rivers wrote: .... One group of stands that I have here which have tubing that clearly can't be re-threaded with a die are the K&M booms. But those have threaded solid inserts pinned into the end, so the tubing isn't the threaded part. I had one of those where the insert was lost and I tried to thread the tubing. It was too small and the threads would only hold a couple of mic clips. |
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#73
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That makes sense with stands coming from outside the States. They are
manufactured to metric standards, then adapted for the US (that pinned insert at the top). I found that out when I tried to mate an Atlas stand to an Ultimate base (the ones that stack). Obviously rethreading will only work on stands made in the US with the actual 5/8" tube. Mike Rivers wrote: .... One group of stands that I have here which have tubing that clearly can't be re-threaded with a die are the K&M booms. But those have threaded solid inserts pinned into the end, so the tubing isn't the threaded part. I had one of those where the insert was lost and I tried to thread the tubing. It was too small and the threads would only hold a couple of mic clips. |
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#74
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On Fri, 24 Sep 2004 15:53:10 -0400, Greg Taylor
wrote: That makes sense with stands coming from outside the States. They are manufactured to metric standards, then adapted for the US (that pinned insert at the top). I found that out when I tried to mate an Atlas stand to an Ultimate base (the ones that stack). Obviously rethreading will only work on stands made in the US with the actual 5/8" tube. Lost in this discussion: I don't recall anyone saying that they'd measured the stand itself to know whether or not it's the right diameter to be rethreaded. Seems to me the proof is in the measurement rather than anything we might come up with at a distance. |
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#75
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On Fri, 24 Sep 2004 15:53:10 -0400, Greg Taylor
wrote: That makes sense with stands coming from outside the States. They are manufactured to metric standards, then adapted for the US (that pinned insert at the top). I found that out when I tried to mate an Atlas stand to an Ultimate base (the ones that stack). Obviously rethreading will only work on stands made in the US with the actual 5/8" tube. Lost in this discussion: I don't recall anyone saying that they'd measured the stand itself to know whether or not it's the right diameter to be rethreaded. Seems to me the proof is in the measurement rather than anything we might come up with at a distance. |
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#76
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On Fri, 24 Sep 2004 15:53:10 -0400, Greg Taylor
wrote: That makes sense with stands coming from outside the States. They are manufactured to metric standards, then adapted for the US (that pinned insert at the top). I found that out when I tried to mate an Atlas stand to an Ultimate base (the ones that stack). Obviously rethreading will only work on stands made in the US with the actual 5/8" tube. Lost in this discussion: I don't recall anyone saying that they'd measured the stand itself to know whether or not it's the right diameter to be rethreaded. Seems to me the proof is in the measurement rather than anything we might come up with at a distance. |
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#77
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Willie K.Yee, M.D. wkyeeATbestwebDOTnet wrote:
On 22 Sep 2004 07:20:45 -0400, (Mike Rivers) wrote: The "discussion" that you seem to be fretting about is to tell you that you won't be successful if you use a die. Wouldn't a die work if you hack sawed off the end of the stand with the messed up threads, and cut the threads on the clean end of the stand, now 1/2 " or so shorter? No, because they are made with rolled threads, not cut ones. The threads extend out past the edge of the pipe, rather than being cut into the pipe. Rolled threads are much weaker than cut ones too, and once they are lost there's not much you can do. It's a lot faster and cheaper to make them, though. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." I just checked my Atlas stands. The diameter of the threaded portion is less than that of the tubing. I have used dies on the Atlas foor years without complication. Richard H. Kuschel "I canna change the law of physics."-----Scotty |
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#78
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Willie K.Yee, M.D. wkyeeATbestwebDOTnet wrote:
On 22 Sep 2004 07:20:45 -0400, (Mike Rivers) wrote: The "discussion" that you seem to be fretting about is to tell you that you won't be successful if you use a die. Wouldn't a die work if you hack sawed off the end of the stand with the messed up threads, and cut the threads on the clean end of the stand, now 1/2 " or so shorter? No, because they are made with rolled threads, not cut ones. The threads extend out past the edge of the pipe, rather than being cut into the pipe. Rolled threads are much weaker than cut ones too, and once they are lost there's not much you can do. It's a lot faster and cheaper to make them, though. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." I just checked my Atlas stands. The diameter of the threaded portion is less than that of the tubing. I have used dies on the Atlas foor years without complication. Richard H. Kuschel "I canna change the law of physics."-----Scotty |
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#79
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Willie K.Yee, M.D. wkyeeATbestwebDOTnet wrote:
On 22 Sep 2004 07:20:45 -0400, (Mike Rivers) wrote: The "discussion" that you seem to be fretting about is to tell you that you won't be successful if you use a die. Wouldn't a die work if you hack sawed off the end of the stand with the messed up threads, and cut the threads on the clean end of the stand, now 1/2 " or so shorter? No, because they are made with rolled threads, not cut ones. The threads extend out past the edge of the pipe, rather than being cut into the pipe. Rolled threads are much weaker than cut ones too, and once they are lost there's not much you can do. It's a lot faster and cheaper to make them, though. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." I just checked my Atlas stands. The diameter of the threaded portion is less than that of the tubing. I have used dies on the Atlas foor years without complication. Richard H. Kuschel "I canna change the law of physics."-----Scotty |
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#80
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In article ,
(Richard Kuschel) wrote: Willie K.Yee, M.D. wkyeeATbestwebDOTnet wrote: On 22 Sep 2004 07:20:45 -0400, (Mike Rivers) wrote: The "discussion" that you seem to be fretting about is to tell you that you won't be successful if you use a die. Wouldn't a die work if you hack sawed off the end of the stand with the messed up threads, and cut the threads on the clean end of the stand, now 1/2 " or so shorter? No, because they are made with rolled threads, not cut ones. The threads extend out past the edge of the pipe, rather than being cut into the pipe. Rolled threads are much weaker than cut ones too, and once they are lost there's not much you can do. It's a lot faster and cheaper to make them, though. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." I just checked my Atlas stands. The diameter of the threaded portion is less than that of the tubing. I have used dies on the Atlas foor years without complication. seems simplier(and most likely cheaper unless you do this "alot") to just get replacment parts and be done with it George |
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