The message
from Dave Fawthrop 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 ;-)

Nope, just good at that particular motion.

--
Skipweasel
Pay no attention to that man behind the curtain.

In message .com,
Matty F writes
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.

Thread nuts onto it

--
geoff

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.

Take two nuts that are compatible with the thread and make a cut half
through them, so that when the threaded bar is in the vice, they grip
the threaded bar. Spin the bar into the thread and cut away. Have a stop
and when the stop is encountered the bar will be ready to cut

Alternatively. Use one nut whole and just cut the second one after
filing the first down a bit (this allows the first nut to act as a guide
and the second to act as the grip).

Or...

Cut through 2 nuts and glue them to the jaws of the vice and just
advance the threaded rod as required and cut.

HTH

BTW My consultation fee is a small matter of £50.00. But I ask that you
pay me at least £20,000 a week, for my suggestions. ;-)


Dave

Matty F wrote:

What is the recommended way to hold threaded galvanised steel rod in a
vise

The word you want is vice

Dave

Dave wrote:
Matty F wrote:

What is the recommended way to hold threaded galvanised steel rod in
a vise

The word you want is vice

Dave

No he doesn't...He's a yank.

--
Sir Benjamin Middlethwaite

The3rd Earl Of Derby wrote:
Dave wrote:
Matty F wrote:

What is the recommended way to hold threaded galvanised steel rod in
a vise

The word you want is vice

Dave

No he doesn't...He's a yank.

Or possibly a Kiwi. :-)


--
Sir Benjamin Middlethwaite

The3rd Earl Of Derby wrote:
The3rd Earl Of Derby wrote:
Dave wrote:
Matty F wrote:

What is the recommended way to hold threaded galvanised steel rod in
a vise

The word you want is vice

Dave

No he doesn't...He's a yank.

Or possibly a Kiwi. :-)

Yes a Kiwi, and thus I can pick and choose whatever spelling I like,
but usually British spelling unless I'm talking to lots of Yanks

I decided to spell it as vise because vice has lots of other meanings,
e.g.:
1. an immoral or evil habit or practice.
2. immoral conduct; depraved or degrading behavior: a life of vice.
3. sexual immorality, esp. prostitution.
4. a particular form of depravity.

Dave 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?

Take two nuts that are compatible with the thread and make a cut half
through them, so that when the threaded bar is in the vice, they grip
the threaded bar. Spin the bar into the thread and cut away. Have a stop
and when the stop is encountered the bar will be ready to cut


BTW My consultation fee is a small matter of £50.00. But I ask that you
pay me at least £20,000 a week, for my suggestions. ;-)

You are far too late. Richard Downing already suggested that. And that
is the way that I did it last week. I was just wondering if anyone else
knew that method.

The main criterion for the job was that the thread and galvanising was
not damaged, and that the cut was neat. Cost and time taken was
irrelevant, and a metal-cutting bandsaw was available. But on no
account was the blade to be broken or damaged, and the operator was not
allowed to lose limbs or eyes or to bleed at all.

My ranking for the various methods, in this situation:

1. Two nuts cut half way through one side [very simple to make]
2. Two nuts cut in half and welded to two metal plates [quickest for
large runs]
3. Two nuts plus a locknut [adequate, but slight risk of rod turning]
4. A block of metal with a nut on each side
5. Aluminium or lead clamps [may damage plating or thread]
6. Two nuts squeezed really hard [difficult to wind nuts off again]
7. Special screw clamp [won't fit in my bandsaw]
8. Clamp lightly in vise plus hand-held [liable to damage operator]
9. Wrap it in a rag [likely to damage thread and bandsaw and operator]
10. Two pieces of wood [same as 9]

Matty F wrote:
The3rd Earl Of Derby wrote:
The3rd Earl Of Derby wrote:
Dave wrote:
Matty F wrote:

What is the recommended way to hold threaded galvanised steel rod in
a vise

The word you want is vice

Dave

No he doesn't...He's a yank.

Or possibly a Kiwi. :-)

Yes a Kiwi, and thus I can pick and choose whatever spelling I like,
but usually British spelling unless I'm talking to lots of Yanks

I decided to spell it as vise because vice has lots of other meanings,
e.g.:
1. an immoral or evil habit or practice.
2. immoral conduct; depraved or degrading behavior: a life of vice.
3. sexual immorality, esp. prostitution.
4. a particular form of depravity.


If any of the those other meanings involve cutting 400 lengths of 5/8in
threaded galvanised steel rod, please provide explicit details.


On behalf of the lurkers, thanks for all the suggestions - they will
help many people besides Matty.


--
Ian White

In article . com,
Matty F wrote:
I decided to spell it as vise because vice has lots of other meanings,
e.g.:
1. an immoral or evil habit or practice.
2. immoral conduct; depraved or degrading behavior: a life of vice.
3. sexual immorality, esp. prostitution.
4. a particular form of depravity.

All of which can get hold of you. ;-)

And 'vise' has other meanings too.

--
*Why isn't there mouse-flavoured cat food?

Dave Plowman London SW
To e-mail, change noise into sound.