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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Holding threaded rod in a vise
What is the recommended way to hold threaded galvanised steel rod in a
vise so that the thread is not damaged? The rod needs to be cut with a hacksaw. Actually it will be cut in a metal bandsaw, but it's the same question as the bandsaw also has a vise. I believe I have invented the best way, but I was wondering if there was a "proper" way that a perfectionist engineer might use. |
#2
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Holding threaded rod in a vise
Matty F wrote:
What is the recommended way to hold threaded galvanised steel rod in a vise so that the thread is not damaged? The rod needs to be cut with a hacksaw. Actually it will be cut in a metal bandsaw, but it's the same question as the bandsaw also has a vise. I believe I have invented the best way, but I was wondering if there was a "proper" way that a perfectionist engineer might use. Two pieces of wood to clamp it in the vice. -- Sir Benjamin Middlethwaite |
#3
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Holding threaded rod in a vise
The3rd Earl Of Derby wrote:
Matty F wrote: What is the recommended way to hold threaded galvanised steel rod in a vise so that the thread is not damaged? The rod needs to be cut with a hacksaw. Actually it will be cut in a metal bandsaw, but it's the same question as the bandsaw also has a vise. Two pieces of wood to clamp it in the vice. If I use the bandsaw and the wood comes loose, the bandsaw blade might jam and break, at some considerable cost and inconvenience and danger. |
#4
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Holding threaded rod in a vise
Matty F wrote:
What is the recommended way to hold threaded galvanised steel rod in a vise so that the thread is not damaged? The rod needs to be cut with a hacksaw. Actually it will be cut in a metal bandsaw, but it's the same question as the bandsaw also has a vise. I believe I have invented the best way, but I was wondering if there was a "proper" way that a perfectionist engineer might use. You just puts nuts on it, and clamp the nuts. You need enough clamping force to slightly deform the nuts, so they grip the rod and stop it from turning as you saw. -- Grunff |
#5
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Holding threaded rod in a vise
Matty F wrote:
What is the recommended way to hold threaded galvanised steel rod in a vise so that the thread is not damaged? The rod needs to be cut with a hacksaw. Actually it will be cut in a metal bandsaw, but it's the same question as the bandsaw also has a vise. I believe I have invented the best way, but I was wondering if there was a "proper" way that a perfectionist engineer might use. Perhaps, cut a pair of nuts for the thread so that they can be pinched up in the machine vice. Thread them on, and clamp, then cut. This has the advantage that the nuts act as thread cleaners to the cut ends. R. |
#6
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Holding threaded rod in a vise
In article .com,
Matty F wrote: What is the recommended way to hold threaded galvanised steel rod in a vise so that the thread is not damaged? The rod needs to be cut with a hacksaw. Actually it will be cut in a metal bandsaw, but it's the same question as the bandsaw also has a vise. Wind two nuts onto it. Use one nut as the guide for the saw. -- Tony Williams. |
#7
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Holding threaded rod in a vise
Richard Downing wrote:
Matty F wrote: What is the recommended way to hold threaded galvanised steel rod in a vise so that the thread is not damaged? The rod needs to be cut with a hacksaw. Actually it will be cut in a metal bandsaw, but it's the same question as the bandsaw also has a vise. I believe I have invented the best way, but I was wondering if there was a "proper" way that a perfectionist engineer might use. Perhaps, cut a pair of nuts for the thread so that they can be pinched up in the machine vice. Thread them on, and clamp, then cut. This has the advantage that the nuts act as thread cleaners to the cut ends. Very good. That is the method that I have used. Ideally, use square nuts, but hexagonal nuts work fine. These were cut halfway along a flat, so someone wanted to clamp them in the bandsaw vise with only the points touching the vise. I refused to allow that as it was not secure and risked breaking the bandsaw blade. Sometimes I don't understand the way some "engineers" think. |
#8
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Holding threaded rod in a vise
Matty F wrote:
The3rd Earl Of Derby wrote: Matty F wrote: What is the recommended way to hold threaded galvanised steel rod in a vise so that the thread is not damaged? The rod needs to be cut with a hacksaw. Actually it will be cut in a metal bandsaw, but it's the same question as the bandsaw also has a vise. Two pieces of wood to clamp it in the vice. If I use the bandsaw and the wood comes loose, the bandsaw blade might jam and break, at some considerable cost and inconvenience and danger. Then don't use the band saw,use a conventional hack saw. -- Sir Benjamin Middlethwaite |
#9
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Holding threaded rod in a vise
Tony Williams wrote:
Wind two nuts onto it. Use one nut as the guide for the saw. The rod usually revolves, but that is stopped OK by having a locknut as well. But cutting two nuts halfway through is the best solution I think. (I have hundreds of rods to cut!) |
#10
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Holding threaded rod in a vise
The3rd Earl Of Derby wrote:
Matty F wrote: The3rd Earl Of Derby wrote: Two pieces of wood to clamp it in the vice. If I use the bandsaw and the wood comes loose, the bandsaw blade might jam and break, at some considerable cost and inconvenience and danger. Then don't use the band saw,use a conventional hack saw. What, I have an expensive metal bandsaw available and I don't use it? How long will it take to make 400 cuts through 5/8" rod with a hacksaw? |
#11
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Holding threaded rod in a vise
Grunff wrote:
Matty F wrote: What is the recommended way to hold threaded galvanised steel rod in a vise so that the thread is not damaged? The rod needs to be cut with a hacksaw. Actually it will be cut in a metal bandsaw, but it's the same question as the bandsaw also has a vise. I believe I have invented the best way, but I was wondering if there was a "proper" way that a perfectionist engineer might use. You just puts nuts on it, and clamp the nuts. You need enough clamping force to slightly deform the nuts, so they grip the rod and stop it from turning as you saw. My early days in the engineering shop was a block of 1" metal with two nuts either side to lock it into position of the 1" block. The problem with just the two nuts is the nuts dont always end up with their flat edge faces. -- Sir Benjamin Middlethwaite |
#12
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Holding threaded rod in a vise
Matty F wrote:
The3rd Earl Of Derby wrote: Matty F wrote: The3rd Earl Of Derby wrote: Two pieces of wood to clamp it in the vice. If I use the bandsaw and the wood comes loose, the bandsaw blade might jam and break, at some considerable cost and inconvenience and danger. Then don't use the band saw,use a conventional hack saw. What, I have an expensive metal bandsaw available and I don't use it? How long will it take to make 400 cuts through 5/8" rod with a hacksaw? But you didn't stipulate 400 pieces. :-P -- Sir Benjamin Middlethwaite |
#13
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Holding threaded rod in a vise
On Sun, 15 Oct 2006 09:44:36 UTC, "The3rd Earl Of Derby"
wrote: My early days in the engineering shop was a block of 1" metal with two nuts either side to lock it into position of the 1" block. Aha! Will remember that... The problem with just the two nuts is the nuts dont always end up with their flat edge faces. That was my thought...was trying to visualise how it could be made to work. -- The information contained in this post is copyright the poster, and specifically may not be published in, or used by Avenue Supplies, http://avenuesupplies.co.uk |
#14
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Holding threaded rod in a vise
In article .com,
Matty F wrote: What is the recommended way to hold threaded galvanised steel rod in a vise so that the thread is not damaged? The rod needs to be cut with a hacksaw. Actually it will be cut in a metal bandsaw, but it's the same question as the bandsaw also has a vise. I believe I have invented the best way, but I was wondering if there was a "proper" way that a perfectionist engineer might use. 'Soft jaw' covers for the vice jaws made from aluminium sheet. Every vice should have some. And it's about time they brought back metalwork teaching at school. ;-) -- *If you don't like the news, go out and make some. Dave Plowman London SW To e-mail, change noise into sound. |
#15
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Holding threaded rod in a vise
On 15 Oct 2006 01:55:22 -0700, "Matty F" wrote:
|What is the recommended way to hold threaded galvanised steel rod in a |vise so that the thread is not damaged? |The rod needs to be cut with a hacksaw. Actually it will be cut in a |metal bandsaw, but it's the same question as the bandsaw also has a |vise. | |I believe I have invented the best way, but I was wondering if there |was a "proper" way that a perfectionist engineer might use. What I was taught in the Apprentice School, long long ago. Drill a hole a piece of sheet which is several threads deep, tap with the appropriate thread. Hacksaw through the tapped hole. Put your threaded rod through the tapped hole, hold the sheet in the vice. IIRC I still have the screw clamps I made there unfortunately, Whitworth or BFS & BA. The ones they made us make had several tapped holes in a line, sawn through and a large hole with 1/8 of metal round it to make the clamp flexible enough to allow threaded rod to be inserted. Hope that is understandable ;-) -- Dave Fawthrop dave hyphenologist co uk Google Groups is IME the *worst* method of accessing usenet. GG subscribers would be well advised get a newsreader, say Agent, and a newsserver, say news.individual.net. These will allow them: to see only *new* posts, a killfile, and other goodies. |
#16
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Holding threaded rod in a vise
In an earlier contribution to this discussion,
Bob Eager wrote: On Sun, 15 Oct 2006 09:44:36 UTC, "The3rd Earl Of Derby" wrote: My early days in the engineering shop was a block of 1" metal with two nuts either side to lock it into position of the 1" block. Aha! Will remember that... The problem with just the two nuts is the nuts dont always end up with their flat edge faces. That was my thought...was trying to visualise how it could be made to work. It's best to use *three* nuts. Lock 2 of them together and put the 3rd nut further along the shaft. Clamp the middle and third nuts in the vice - with the first nut just outside the jaws, so it doesn't matter if the flats don't line up. When cutting a threaded bar or bolt, you should always have a nut on it anyway - so that subsequently removing the nut will clean up the threads where the cutting process may have damaged them. -- Cheers, Roger ______ Email address maintained for newsgroup use only, and not regularly monitored.. Messages sent to it may not be read for several weeks. PLEASE REPLY TO NEWSGROUP! |
#17
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Holding threaded rod in a vise
The3rd Earl Of Derby wrote:
Matty F wrote: What is the recommended way to hold threaded galvanised steel rod in a vise so that the thread is not damaged? The rod needs to be cut with a hacksaw. Actually it will be cut in a metal bandsaw, but it's the same question as the bandsaw also has a vise. I believe I have invented the best way, but I was wondering if there was a "proper" way that a perfectionist engineer might use. Two pieces of wood to clamp it in the vice. several nuts locked together. |
#18
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Holding threaded rod in a vise
The3rd Earl Of Derby wrote:
Matty F wrote: The3rd Earl Of Derby wrote: Matty F wrote: The3rd Earl Of Derby wrote: Two pieces of wood to clamp it in the vice. If I use the bandsaw and the wood comes loose, the bandsaw blade might jam and break, at some considerable cost and inconvenience and danger. Then don't use the band saw,use a conventional hack saw. What, I have an expensive metal bandsaw available and I don't use it? How long will it take to make 400 cuts through 5/8" rod with a hacksaw? But you didn't stipulate 400 pieces. :-P But I did say a "perfectionist engineer", who of course would use the best method for even just one cut |
#19
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Holding threaded rod in a vise
I'd recommend using a hand grinder with a metal disc. They're quite
cheap these days. Just be sure to wear eye protection and remember that whatever you grind will be hot afterwards. On Oct 15, 11:01 am, "Roger Mills" wrote: In an earlier contribution to this discussion, Bob Eager wrote: On Sun, 15 Oct 2006 09:44:36 UTC, "The3rd Earl Of Derby" wrote: My early days in the engineering shop was a block of 1" metal with two nuts either side to lock it into position of the 1" block. Aha! Will remember that... The problem with just the two nuts is the nuts dont always end up with their flat edge faces. That was my thought...was trying to visualise how it could be made to work.It's best to use *three* nuts. Lock 2 of them together and put the 3rd nut further along the shaft. Clamp the middle and third nuts in the vice - with the first nut just outside the jaws, so it doesn't matter if the flats don't line up. When cutting a threaded bar or bolt, you should always have a nut on it anyway - so that subsequently removing the nut will clean up the threads where the cutting process may have damaged them. -- Cheers, Roger ______ Email address maintained for newsgroup use only, and not regularly monitored.. Messages sent to it may not be read for several weeks. PLEASE REPLY TO NEWSGROUP! |
#20
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Holding threaded rod in a vise
Roger Mills wrote:
It's best to use *three* nuts. Lock 2 of them together and put the 3rd nut further along the shaft. Clamp the middle and third nuts in the vice - with the first nut just outside the jaws, so it doesn't matter if the flats don't line up. That works fairly well except that in the bandsaw there is only a tiny gap between the vise and the blade. Enough for a quarter locknut perhaps. I could put a locknut at the other end of the vise, but that won't work when the rod gets short. When cutting a threaded bar or bolt, you should always have a nut on it anyway - so that subsequently removing the nut will clean up the threads where the cutting process may have damaged them. Agreed. |
#21
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Holding threaded rod in a vise
"Matty F" wrote in message oups.com... What is the recommended way to hold threaded galvanised steel rod in a vise so that the thread is not damaged? The rod needs to be cut with a hacksaw. Actually it will be cut in a metal bandsaw, but it's the same question as the bandsaw also has a vise. I believe I have invented the best way, but I was wondering if there was a "proper" way that a perfectionist engineer might use. In view of the high volume, you need something faster than winding nuts on. For a volume job like this I would use two nuts cut in half that are welded to disposable vice jaws, that way you have a fast way to clamp without damage to the threads, you would also be likely to incorporate a length stop at the same time. Mrcheerful |
#22
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Holding threaded rod in a vise
Dave Fawthrop wrote:
On 15 Oct 2006 01:55:22 -0700, "Matty F" wrote: |What is the recommended way to hold threaded galvanised steel rod in a |vise so that the thread is not damaged? What I was taught in the Apprentice School, long long ago. Drill a hole a piece of sheet which is several threads deep, tap with the appropriate thread. Hacksaw through the tapped hole. Put your threaded rod through the tapped hole, hold the sheet in the vice. IIRC I still have the screw clamps I made there unfortunately, Whitworth or BFS & BA. The ones they made us make had several tapped holes in a line, sawn through and a large hole with 1/8 of metal round it to make the clamp flexible enough to allow threaded rod to be inserted. Hope that is understandable ;-) Actually it's not! Why do you need to hacksaw through the tapped hole? Does the sheet remain flat? Do you put a nut on each side of the sheet, or what stops the rod rotating? |
#23
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Holding threaded rod in a vise
"Matty F" wrote in message oups.com... The3rd Earl Of Derby wrote: Matty F wrote: The3rd Earl Of Derby wrote: Two pieces of wood to clamp it in the vice. If I use the bandsaw and the wood comes loose, the bandsaw blade might jam and break, at some considerable cost and inconvenience and danger. Then don't use the band saw,use a conventional hack saw. What, I have an expensive metal bandsaw available and I don't use it? How long will it take to make 400 cuts through 5/8" rod with a hacksaw? It's the same problem as shortening or drilling bolts or threaded bar in the lathe and how to hold them in a 3 jaw chuck. For a bolt with a hex head you use one loose nut of the same size as the head and grip both at the same time. For threaded bar you lock two nuts together to act as the 'head' and a third loose nut further down. You grip on the loose nut and the lower of the two locked ones. Ideally you want the two locked nuts at the cutting tool end of the bar because there will be a small amount of chatter between the bar and the loose nut. For 400 pieces that's a lot of screwing and unscrewing nuts though. It'll take longer to put the nuts on than to cut the bar. To save time in the long run I might be tempted to take two lengths of softwood, put a V groove along both with a 90 degree chamfering tool, attach those to the vice and use them as soft jaws to clamp the threaded rod between the V's. You could also put semicircular grooves with a ball nosed milling cutter, each a couple of mm less deep than the radius of the rod so the threads can dig in a bit. Once you've done the first piece you'll have a nice thread indented into the wood and you can align the other pieces into that. The rod ain't going to go anywhere with several inches of its length indented hard into wood. -- Dave Baker Puma Race Engines www.pumaracing.co.uk Camp American engineer minces about for high performance specialist (4,4,7) |
#24
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Holding threaded rod in a vise
mrcheerful wrote:
In view of the high volume, you need something faster than winding nuts on. For a volume job like this I would use two nuts cut in half that are welded to disposable vice jaws, that way you have a fast way to clamp without damage to the threads, you would also be likely to incorporate a length stop at the same time. Yes that sounds the best method yet. Except that we seldom have such a large run, and making such a device for each size and type of rod that we use, and finding them again a year later would be a problem. Whereas I can easily cut another couple of nuts. The rods need to be only 2 inches long, and it was quite quick to just slacken the vise and screw the rod along a couple of inches. Having a length stop risks jamming the bandsaw blade when the cut piece of rod falls off. I'd need to have a length stop that swings out of the way. |
#25
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Holding threaded rod in a vise
On 15 Oct 2006 03:29:37 -0700, "Matty F" wrote:
|Dave Fawthrop wrote: | On 15 Oct 2006 01:55:22 -0700, "Matty F" wrote: | | |What is the recommended way to hold threaded galvanised steel rod in a | |vise so that the thread is not damaged? | | What I was taught in the Apprentice School, long long ago. Drill a hole a | piece of sheet which is several threads deep, tap with the appropriate | thread. Hacksaw through the tapped hole. Put your threaded rod through | the tapped hole, hold the sheet in the vice. | | IIRC I still have the screw clamps I made there unfortunately, Whitworth or | BFS & BA. The ones they made us make had several tapped holes in a line, | sawn through and a large hole with 1/8 of metal round it to make the clamp | flexible enough to allow threaded rod to be inserted. | | Hope that is understandable ;-) | |Actually it's not! |Why do you need to hacksaw through the tapped hole? So the rod/bolt is held rigidly when held in the vice. |Does the sheet remain flat? It has to be several threads deep the ones we made was 1/8 thick sheet |Do you put a nut on each side of the sheet, or what stops the rod |rotating? The vice pressure stops the rod rotating, -- Dave Fawthrop dave hyphenologist co uk Google Groups is IME the *worst* method of accessing usenet. GG subscribers would be well advised get a newsreader, say Agent, and a newsserver, say news.individual.net. These will allow them: to see only *new* posts, a killfile, and other goodies. |
#26
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Holding threaded rod in a vise
"Matty F" wrote in message oups.com... mrcheerful wrote: In view of the high volume, you need something faster than winding nuts on. For a volume job like this I would use two nuts cut in half that are welded to disposable vice jaws, that way you have a fast way to clamp without damage to the threads, you would also be likely to incorporate a length stop at the same time. Yes that sounds the best method yet. Except that we seldom have such a large run, and making such a device for each size and type of rod that we use, and finding them again a year later would be a problem. Whereas I can easily cut another couple of nuts. The rods need to be only 2 inches long, and it was quite quick to just slacken the vise and screw the rod along a couple of inches. Having a length stop risks jamming the bandsaw blade when the cut piece of rod falls off. I'd need to have a length stop that swings out of the way. ======================== Are you sure you're not being too meticulous on this particular job? A 5/8" galvanised thread isn't likely to be a very fine thread and if your bandsaw is properly set up it will give good square cut ends on 2" lengths which won't produce much 'chatter' when the rod is held very lightly in a 4" or 6" vice. Try a few cuts with the rod held lightly in the vice whilst holding the projecting rod (opposite end to the cut-off end) with your gloved hands. You will probably have to put nuts on to raw ends in any case so you might as well try the quick way which has worked for me whenever I've cut threaded rod on my bandsaw. Cic. -------------------------------------------------------------------------------- I am using the free version of SPAMfighter for private users. It has removed 1307 spam emails to date. Paying users do not have this message in their emails. Try SPAMfighter for free now! |
#27
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Holding threaded rod in a vise
"Matty F" wrote in message oups.com... mrcheerful wrote: In view of the high volume, you need something faster than winding nuts on. For a volume job like this I would use two nuts cut in half that are welded to disposable vice jaws, that way you have a fast way to clamp without damage to the threads, you would also be likely to incorporate a length stop at the same time. Yes that sounds the best method yet. Except that we seldom have such a large run, and making such a device for each size and type of rod that we use, and finding them again a year later would be a problem. Whereas I can easily cut another couple of nuts. The rods need to be only 2 inches long, and it was quite quick to just slacken the vise and screw the rod along a couple of inches. Having a length stop risks jamming the bandsaw blade when the cut piece of rod falls off. I'd need to have a length stop that swings out of the way. making the jig for this would only take about half an hour, just chuck it when finished with. Mrcheerful |
#28
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Holding threaded rod in a vise
Cicero wrote:
Are you sure you're not being too meticulous on this particular job? A 5/8" galvanised thread isn't likely to be a very fine thread and if your bandsaw is properly set up it will give good square cut ends on 2" lengths which won't produce much 'chatter' when the rod is held very lightly in a 4" or 6" vice. Try a few cuts with the rod held lightly in the vice whilst holding the projecting rod (opposite end to the cut-off end) with your gloved hands. You will probably have to put nuts on to raw ends in any case so you might as well try the quick way which has worked for me whenever I've cut threaded rod on my bandsaw. Are you suggesting clamping the threaded rod in a steel vise without protection? When I cut using a hacksaw I use aluminium covers for the vice jaws. I wanted to hold the rod even more securely in the bandsaw, because it's not nice if it jams and breaks the blade. This is a horizontal bandsaw with an automatic feed. I usually walk away and do something else while it's cutting. |
#29
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Holding threaded rod in a vise
"Matty F" wrote in message ups.com... Cicero wrote: Are you sure you're not being too meticulous on this particular job? A 5/8" galvanised thread isn't likely to be a very fine thread and if your bandsaw is properly set up it will give good square cut ends on 2" lengths which won't produce much 'chatter' when the rod is held very lightly in a 4" or 6" vice. Try a few cuts with the rod held lightly in the vice whilst holding the projecting rod (opposite end to the cut-off end) with your gloved hands. You will probably have to put nuts on to raw ends in any case so you might as well try the quick way which has worked for me whenever I've cut threaded rod on my bandsaw. Are you suggesting clamping the threaded rod in a steel vise without protection? When I cut using a hacksaw I use aluminium covers for the vice jaws. I wanted to hold the rod even more securely in the bandsaw, because it's not nice if it jams and breaks the blade. This is a horizontal bandsaw with an automatic feed. I usually walk away and do something else while it's cutting. ========================= This is very similar to mine although mine is an earlier version and about 20 years old: http://www.machinemart.co.uk/product.asp?p=060710025 I've never had any problems with mine but maybe it's slower than yours. Cic. -------------------------------------------------------------------------------- I am using the free version of SPAMfighter for private users. It has removed 1307 spam emails to date. Paying users do not have this message in their emails. Try SPAMfighter for free now! |
#30
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Holding threaded rod in a vise
Dave Fawthrop wrote:
On 15 Oct 2006 03:29:37 -0700, "Matty F" wrote: |Dave Fawthrop wrote: | On 15 Oct 2006 01:55:22 -0700, "Matty F" wrote: | | |What is the recommended way to hold threaded galvanised steel rod in a | |vise so that the thread is not damaged? | | What I was taught in the Apprentice School, long long ago. Drill a hole a | piece of sheet which is several threads deep, tap with the appropriate | thread. Hacksaw through the tapped hole. Put your threaded rod through | the tapped hole, hold the sheet in the vice. | | IIRC I still have the screw clamps I made there unfortunately, Whitworth or | BFS & BA. The ones they made us make had several tapped holes in a line, | sawn through and a large hole with 1/8 of metal round it to make the clamp | flexible enough to allow threaded rod to be inserted. | | Hope that is understandable ;-) | |Actually it's not! |Why do you need to hacksaw through the tapped hole? So the rod/bolt is held rigidly when held in the vice. |Does the sheet remain flat? It has to be several threads deep the ones we made was 1/8 thick sheet |Do you put a nut on each side of the sheet, or what stops the rod |rotating? The vice pressure stops the rod rotating, Is your piece of sheet very narrow, and looking rather like a nut with a cut through one side? In which case why not just use a nut? |
#31
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Holding threaded rod in a vise
Cicero wrote:
This is very similar to mine although mine is an earlier version and about 20 years old: http://www.machinemart.co.uk/product.asp?p=060710025 Ours is bigger and runs coolant on the blade and has a tray underneath to cathc the coolant. It doesn't appear to be able to tilt vertical like yours, which is a great pity, because there are some diagonal cuts that can't be done. |
#32
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Holding threaded rod in a vise
"Matty F" wrote in message oups.com... Cicero wrote: This is very similar to mine although mine is an earlier version and about 20 years old: http://www.machinemart.co.uk/product.asp?p=060710025 Ours is bigger and runs coolant on the blade and has a tray underneath to cathc the coolant. It doesn't appear to be able to tilt vertical like yours, which is a great pity, because there are some diagonal cuts that can't be done. ======================== The vertical function isn't really much use because it has a very basic table about 12" square. The flat bed vice jaws can swing through 45 degrees so it can produce most diagonals. No coolant is necessary so quite slow and safe. When a blade snaps it breaks quite safely both because of the low speed and surrounding protection. I can understand your reluctance to get close without good clamping but I think it would be worth a try to clamp firmly without any other aids to see what damage (if any) there is to the threads. You've got a good clamping area and damage should be minimal. It really depends on what you're going to use the rods / studs for. Most of the suggested clamping methods are likely to be very tedious and time-consuming however ingenious they are. Cic. -------------------------------------------------------------------------------- I am using the free version of SPAMfighter for private users. It has removed 1307 spam emails to date. Paying users do not have this message in their emails. Try SPAMfighter for free now! |
#33
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Holding threaded rod in a vise
We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "Matty F" saying something like: What is the recommended way to hold threaded galvanised steel rod in a vise so that the thread is not damaged? Wrap it in a rag. -- Dave |
#34
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Holding threaded rod in a vise
On 15 Oct 2006 05:00:25 -0700, "Matty F" wrote:
|Dave Fawthrop wrote: | On 15 Oct 2006 03:29:37 -0700, "Matty F" wrote: | | |Dave Fawthrop wrote: | | On 15 Oct 2006 01:55:22 -0700, "Matty F" wrote: | | | | |What is the recommended way to hold threaded galvanised steel rod in a | | |vise so that the thread is not damaged? | | | | What I was taught in the Apprentice School, long long ago. Drill a hole a | | piece of sheet which is several threads deep, tap with the appropriate | | thread. Hacksaw through the tapped hole. Put your threaded rod through | | the tapped hole, hold the sheet in the vice. | | | | IIRC I still have the screw clamps I made there unfortunately, Whitworth or | | BFS & BA. The ones they made us make had several tapped holes in a line, | | sawn through and a large hole with 1/8 of metal round it to make the clamp | | flexible enough to allow threaded rod to be inserted. | | | | Hope that is understandable ;-) | | | |Actually it's not! | |Why do you need to hacksaw through the tapped hole? | | So the rod/bolt is held rigidly when held in the vice. | | |Does the sheet remain flat? | | It has to be several threads deep the ones we made was 1/8 thick sheet | | |Do you put a nut on each side of the sheet, or what stops the rod | |rotating? | | The vice pressure stops the rod rotating, | |Is your piece of sheet very narrow, and looking rather like a nut with |a cut through one side? The piece I made was about 1 inch wide by 4 inches long by 1/8 inch wide |In which case why not just use a nut? It worked better than a nut because flexible curve at the end allowed the threads to open and close easily. and had four taped holes. I have searched for it but failed to find it, so you will have to make do with ASCII art. flexible metal round hole vice here \/ \/ -------------------------------------------------------------- / /-- \ | / / \ --- -- - | | | --------/ \---------/ \----------/ \--------/\------- | | --------\ /---------\ /----------\ /--------\/------- \ \ / --- -- - | \ \---/ | -------------------------------------------------------------- ^ ^ Large round hole four threaded hole different sizes -- Dave Fawthrop dave hyphenologist co uk Google Groups is IME the *worst* method of accessing usenet. GG subscribers would be well advised get a newsreader, say Agent, and a newsserver, say news.individual.net. These will allow them: to see only *new* posts, a killfile, and other goodies. |
#35
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Holding threaded rod in a vise
"Matty F" wrote in message oups.com... What is the recommended way to hold threaded galvanised steel rod in a vise so that the thread is not damaged? The rod needs to be cut with a hacksaw. Actually it will be cut in a metal bandsaw, but it's the same question as the bandsaw also has a vise. I believe I have invented the best way, but I was wondering if there was a "proper" way that a perfectionist engineer might use. Lead clamps are very good; use two "L" shaped pieces. Or you could use aluminium clamps, made from an old number plate. Sylvain. |
#36
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Holding threaded rod in a vise
The message .com
from "Matty F" contains these words: I believe I have invented the best way, but I was wondering if there was a "proper" way that a perfectionist engineer might use. Personally I either use softjaws for the vice, if I can find where I last put them, or I lock a couple of nuts onto the stud and grip them. -- Skipweasel Pay no attention to that man behind the curtain. |
#37
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Holding threaded rod in a vise
The message k
from "The3rd Earl Of Derby" contains these words: Then don't use the band saw,use a conventional hack saw. It's got to be a really thick stud before it's quicker to use the bandsaw. 10mm stud in 10secs with a hacksaw is easy. -- Skipweasel Pay no attention to that man behind the curtain. |
#38
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Holding threaded rod in a vise
The message .com
from "Matty F" contains these words: How long will it take to make 400 cuts through 5/8" rod with a hacksaw? Hour and half, max. -- Skipweasel Pay no attention to that man behind the curtain. |
#39
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Holding threaded rod in a vise
In article ,
Sylvain VAN DER WALDE wrote: Or you could use aluminium clamps, made from an old number plate. A *very* old number plate. ;-) -- *Fax is stronger than fiction * Dave Plowman London SW To e-mail, change noise into sound. |
#40
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Holding threaded rod in a vise
On Sun, 15 Oct 2006 17:43:33 +0100, Guy King wrote:
|The message .com |from "Matty F" contains these words: | | How long will it take to make 400 cuts through 5/8" rod with a hacksaw? | |Hour and half, max. Ooh you are fit ;-) -- Dave Fawthrop dave hyphenologist co uk Google Groups is IME the *worst* method of accessing usenet. GG subscribers would be well advised get a newsreader, say Agent, and a newsserver, say news.individual.net. These will allow them: to see only *new* posts, a killfile, and other goodies. |
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