On 18/08/2017 14:40, Yendor wrote:

Oh, and a better quality cutter won't wander!
I cannot find one that goes down to 3mm apart from the £3 ebay one and
the £450 manufacturer's recommended one!


https://www.toolstation.com/shop/p59799

Best take a few spares in case they blunt quickly.
You can take them back later.

This one is similar and you may be able to grind some of the carriage
off to make it cut 3mm.

What losses can you manage with if you can't cleave it properly?

On Thursday, 17 August 2017 21:00:31 UTC+1, Yendor wrote:
I have to cut a 4mm hollow stainless steel tube that contains 8 fibre
optic cables. I need to remove about 1 metre of the Tube to expose the
Fibres which are 125 microns in dia.

The tubes are normally plastic, and I run a stripping tool around the
tube to score the outer part and then it snaps off with a little bending.

It is in an area that I cannot use any power or Battery tools.

I cannot get to the site until I am to do the job, so I don't know how
much I have to play with to perfect a plan. I cannot obviously damage
any of the fibres within the tube. It is on an Offshore Platform and in
an EX area.

I have though of trying a small file to create a groove around the tube
and then snapping it. Or even a Stanley blade. I can also try my
existing stripping tool, and realise it will be useless after this.

There is apparently a tool for this type of Fibre cable with a stainless
Steel tube, but it is £450, and since this is a one off, and the first
time I have seen this type of tube in 7 years, I do not want to buy it.

Any thoughts on what might work?
--
Yendor

Pipe ring cutter.
http://www.screwfix.com/p/rothenberg...e-cutter/97013

On 18/08/2017 17:23, dennis@home wrote:
On 18/08/2017 14:40, Yendor wrote:

Oh, and a better quality cutter won't wander!
I cannot find one that goes down to 3mm apart from the £3 ebay one and
the £450 manufacturer's recommended one!


https://www.toolstation.com/shop/p59799

Best take a few spares in case they blunt quickly.
You can take them back later.

This one is similar and you may be able to grind some of the carriage
off to make it cut 3mm.

What losses can you manage with if you can't cleave it properly?



https://www.toolstation.com/shop/p27996

Is the missing link.

On 18/08/2017 18:33, dennis@home wrote:
On 18/08/2017 17:23, dennis@home wrote:
On 18/08/2017 14:40, Yendor wrote:

Oh, and a better quality cutter won't wander!
I cannot find one that goes down to 3mm apart from the £3 ebay one
and the £450 manufacturer's recommended one!


https://www.toolstation.com/shop/p59799

Best take a few spares in case they blunt quickly.
You can take them back later.

This one is similar and you may be able to grind some of the carriage
off to make it cut 3mm.

What losses can you manage with if you can't cleave it properly?



https://www.toolstation.com/shop/p27996

Is the missing link.

I have ordered 3 of the cheap ebay ones, and a more exspensive one, I
have cutting paste, I normally use for threading Galv Conduit. Some mini
files, and 10 stanley blades!

0.7db is the maximum loss for a fibre connector. Any cleave of the fibre
core over 3.5 degrees will not work. The Fibre cleaver if given the room
to work normally cleaves +-0.5 degrees.

--
Yendor

On 18/08/2017 18:11, Andrew wrote:
On 18/08/2017 14:51, Yendor wrote:
On 18/08/2017 13:00, Peter Parry wrote:
On Thu, 17 Aug 2017 22:00:26 +0200, Yendor wrote:


There is apparently a tool for this type of Fibre cable with a
stainless
Steel tube, but it is £450, and since this is a one off, and the first
time I have seen this type of tube in 7 years, I do not want to buy it.

Any thoughts on what might work?

Any of these with the appropriate steel cutting blade?

https://www.transtools.co.uk/hand-to...utter-3mm-30mm


http://www.pipetoolsdirect.co.uk/sho...er-3-42mm.html


http://www.tubela.com/prod/pipe-tube...mm-tube-cutter


I've cut a fair amount of small diameter stainless steel pipe with
these types of roller cutter and as long as the right cutting wheel is
used it isn't too much hassle - it just takes a lotÂ* longer than
cutting copper does.Â* You are left with a small burr on the inside
which can be removed with a small diamond file.


Cheers, I will order the Rothenberger one, that seems a decent tool.
Still going to take the ebay ones.


Take some photos of the rig and the job and post them here !.
I can't take photos of the Job. No cameras allowed outside Accommodation
Module. The only photos would be of the TV Room...

I will post how I get on. Think it September I am heading out for this job.
I am currently working in Rotterdam on a new Well Intervention vessel. I
have photos of that Job!
http://imgur.com/a/eYqaJ

--
Yendor

On 18/08/2017 18:22, Yendor wrote:
On 18/08/2017 18:11, Andrew wrote:
On 18/08/2017 14:51, Yendor wrote:
On 18/08/2017 13:00, Peter Parry wrote:
On Thu, 17 Aug 2017 22:00:26 +0200, Yendor wrote:


There is apparently a tool for this type of Fibre cable with a
stainless
Steel tube, but it is £450, and since this is a one off, and the first
time I have seen this type of tube in 7 years, I do not want to buy
it.

Any thoughts on what might work?

Any of these with the appropriate steel cutting blade?

https://www.transtools.co.uk/hand-to...utter-3mm-30mm


http://www.pipetoolsdirect.co.uk/sho...er-3-42mm.html


http://www.tubela.com/prod/pipe-tube...mm-tube-cutter


I've cut a fair amount of small diameter stainless steel pipe with
these types of roller cutter and as long as the right cutting wheel is
used it isn't too much hassle - it just takes a lot longer than
cutting copper does. You are left with a small burr on the inside
which can be removed with a small diamond file.


Cheers, I will order the Rothenberger one, that seems a decent tool.
Still going to take the ebay ones.


Take some photos of the rig and the job and post them here !.
I can't take photos of the Job. No cameras allowed outside Accommodation
Module. The only photos would be of the TV Room...

I will post how I get on. Think it September I am heading out for this job.
I am currently working in Rotterdam on a new Well Intervention vessel. I
have photos of that Job!
http://imgur.com/a/eYqaJ

Hmmm. I could do something creative in my garden with those pieces of
hardwood timber in Pic #2 !.

On 18/08/2017 19:33, Andrew wrote:
On 18/08/2017 18:22, Yendor wrote:
On 18/08/2017 18:11, Andrew wrote:
On 18/08/2017 14:51, Yendor wrote:
On 18/08/2017 13:00, Peter Parry wrote:
On Thu, 17 Aug 2017 22:00:26 +0200, Yendor wrote:


There is apparently a tool for this type of Fibre cable with a
stainless
Steel tube, but it is £450, and since this is a one off, and the
first
time I have seen this type of tube in 7 years, I do not want to
buy it.

Any thoughts on what might work?

Any of these with the appropriate steel cutting blade?

https://www.transtools.co.uk/hand-to...utter-3mm-30mm


http://www.pipetoolsdirect.co.uk/sho...er-3-42mm.html


http://www.tubela.com/prod/pipe-tube...mm-tube-cutter


I've cut a fair amount of small diameter stainless steel pipe with
these types of roller cutter and as long as the right cutting wheel is
used it isn't too much hassle - it just takes a lotÂ* longer than
cutting copper does.Â* You are left with a small burr on the inside
which can be removed with a small diamond file.


Cheers, I will order the Rothenberger one, that seems a decent tool.
Still going to take the ebay ones.


Take some photos of the rig and the job and post them here !.
I can't take photos of the Job. No cameras allowed outside
Accommodation Module. The only photos would be of the TV Room...

I will post how I get on. Think it September I am heading out for this
job.
I am currently working in Rotterdam on a new Well Intervention vessel.
I have photos of that Job!
http://imgur.com/a/eYqaJ

Hmmm. I could do something creative in my garden with those pieces of
hardwood timber in Pic #2 !.

I seen them, there is about 5 pallets of them, they only use them to
separate the drill pipe stacks, so they can get a sling around each length.

--
Yendor

On 17/08/2017 21:00, Yendor wrote:
I have to cut a 4mm hollow stainless steel tube that contains 8 fibre
optic cables. I need to remove about 1 metre of the Tube to expose the
Fibres which are 125 microns in dia.

The tubes are normally plastic, and I run a stripping tool around the
tube to score the outer part and then it snaps off with a little bending.

It is in an area that I cannot use any power or Battery tools.

I cannot get to the site until I am to do the job, so I don't know how
much I have to play with to perfect a plan. I cannot obviously damage
any of the fibres within the tube. It is on an Offshore Platform and in
an EX area.

I have though of trying a small file to create a groove around the tube
and then snapping it. Or even a Stanley blade. I can also try my
existing stripping tool, and realise it will be useless after this.

There is apparently a tool for this type of Fibre cable with a stainless
Steel tube, but it is £450, and since this is a one off, and the first
time I have seen this type of tube in 7 years, I do not want to buy it.

Any thoughts on what might work?

I have now completed this job. There was a bit of spare cable to
practice on before I had to strip back to final length, once on site.

The method that worked best, was to score the stainless steel tube with
a Stanley blade, then snap it off. I then was able to insert 50mm of
PVC tube, that i rubbed down with sandpaper so that it fitted inside the
stainless steel tube to protect the fibre cores from any rough edges on
the tube. Then it was a matter of fitting the connectors, splicing and
testing.

All in all the job took 4 hours. The travel was 12 hours, followed by 2
hours of inductions, 3 hours to get permits, and 3 days in total. Client
is happy, which is all that matters to me.

--
Yendor

Sounds like the reason why we are not very competitive then.
I'd have thought those that want a job done should supply the tools in such
specialist cases.
Brian

--
----- -
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"Yendor" wrote in message
news
On 17/08/2017 21:00, Yendor wrote:
I have to cut a 4mm hollow stainless steel tube that contains 8 fibre
optic cables. I need to remove about 1 metre of the Tube to expose the
Fibres which are 125 microns in dia.

The tubes are normally plastic, and I run a stripping tool around the
tube to score the outer part and then it snaps off with a little bending.

It is in an area that I cannot use any power or Battery tools.

I cannot get to the site until I am to do the job, so I don't know how
much I have to play with to perfect a plan. I cannot obviously damage any
of the fibres within the tube. It is on an Offshore Platform and in an EX
area.

I have though of trying a small file to create a groove around the tube
and then snapping it. Or even a Stanley blade. I can also try my existing
stripping tool, and realise it will be useless after this.

There is apparently a tool for this type of Fibre cable with a stainless
Steel tube, but it is £450, and since this is a one off, and the first
time I have seen this type of tube in 7 years, I do not want to buy it.

Any thoughts on what might work?

I have now completed this job. There was a bit of spare cable to practice
on before I had to strip back to final length, once on site.

The method that worked best, was to score the stainless steel tube with a
Stanley blade, then snap it off. I then was able to insert 50mm of PVC
tube, that i rubbed down with sandpaper so that it fitted inside the
stainless steel tube to protect the fibre cores from any rough edges on
the tube. Then it was a matter of fitting the connectors, splicing and
testing.

All in all the job took 4 hours. The travel was 12 hours, followed by 2
hours of inductions, 3 hours to get permits, and 3 days in total. Client
is happy, which is all that matters to me.

--
Yendor

On 21/10/2017 18:14, Brian Gaff wrote:
Sounds like the reason why we are not very competitive then.
I'd have thought those that want a job done should supply the tools in such
specialist cases.
Brian

Wherever possible, everything is farmed out to contractors these days.

On 21/10/2017 09:47, Yendor wrote:
On 17/08/2017 21:00, Yendor wrote:
I have to cut a 4mm hollow stainless steel tube that contains 8 fibre
optic cables. I need to remove about 1 metre of the Tube to expose the
Fibres which are 125 microns in dia.

The tubes are normally plastic, and I run a stripping tool around the
tube to score the outer part and then it snaps off with a little bending.

It is in an area that I cannot use any power or Battery tools.

I cannot get to the site until I am to do the job, so I don't know how
much I have to play with to perfect a plan. I cannot obviously damage
any of the fibres within the tube. It is on an Offshore Platform and
in an EX area.

I have though of trying a small file to create a groove around the
tube and then snapping it. Or even a Stanley blade. I can also try my
existing stripping tool, and realise it will be useless after this.

There is apparently a tool for this type of Fibre cable with a
stainless Steel tube, but it is £450, and since this is a one off, and
the first time I have seen this type of tube in 7 years, I do not want
to buy it.

Any thoughts on what might work?

I have now completed this job. There was a bit of spare cable to
practice on before I had to strip back to final length, once on site.

The method that worked best, was to score the stainless steel tube with
a Stanley blade, then snap it off. I then was able to insertÂ* 50mm of
PVC tube, that i rubbed down with sandpaper so that it fitted inside the
stainless steel tube to protect the fibre cores from any rough edges on
the tube. Then it was a matter of fitting the connectors, splicing and
testing.

All in all the job took 4 hours. The travel was 12 hours, followed by 2
hours of inductions, 3 hours to get permits, and 3 days in total. Client
is happy, which is all that matters to me.

That's a good result, well done! Did you make a tool to hold the blades
for the scoring, or did you manage to do it "freehand"? I guess it must
have been fairly thin walled tube.