From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

Dave Plowman wrote:

From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

Bad that the expiry date had been over-stamped, they were cutting discs,
yet he kept saying grinding, I wonder whether he was using them for
cutting or grinding?

Andy Burns wrote:
Dave Plowman wrote:

From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

Bad that the expiry date had been over-stamped, they were cutting discs,
yet he kept saying grinding, I wonder whether he was using them for cutting or grinding?

And where did he get them from?
Boot sale?
Tis bad though and good that he's trying to warn others.

--
What else are opposable thumbs for? Get to me at
masterfix{at}btinternet{dot}com

On Sep 13, 9:24 am, Dave Plowman wrote:
From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

|I've never heard of that before

and anyway what no gloves etc?!?!

Jim K

Dave Plowman wrote:

From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

The morale being to check the dates on stuff you use, and if it's
stickered, remove the sticker to check the actual date ..

TBH I never knew they had a 'use by' date, better check mine as I've
just bought a stack ready to attack the Landrover ... so thanks for
posting ..

--
Paul - xxx

In message , Andy
Burns writes
Dave Plowman wrote:

From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

Bad that the expiry date had been over-stamped, they were cutting
discs, yet he kept saying grinding, I wonder whether he was using them
for cutting or grinding?

News to me that angle grinder discs have a use by date!

I tend to purchase 10 at a time and they sit in a damp, unheated
workshop until needed.

Wasn't that an offset centre? To me they looked to be *thin* grinding
discs.

regards

--
Tim Lamb

Paul - xxx wrote:

TBH I never knew they had a 'use by' date, better check mine as I've
just bought a stack ready to attack the Landrover ... so thanks for
posting ..

I must admit I've always used the UseBy date as advisory on discs. I
couldn't quite see why they would deteriorate with time. Presumably,
from this, they get brittle with age.

OTOH, looking at his other vids it's *possible* that he was grinding
with them (restoration of a Ford(?) 100E) - the vid on 4th Sep refers to
cleaning up rust.

Also, looking at the disc, unless it gave up as soon as it touched the
work, there's no sign of damage on the text side of the disc which
starts gets worn away as soon as you cut any depth.

--
Scott

Where are we going and why am I in this handbasket?

On 13 Sep, 09:43, Jim K wrote:
On Sep 13, 9:24 am, Dave Plowman wrote:

*From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

|I've never heard of that before

and anyway what no gloves etc?!?!

Jim K

Wonder was he wearing goggles ?

Expiry date on angle grinder discs is b****x. Ditto storage
conditions. These discs are abrasive material held in a resin. Could
someone explain to me how they would deteriorate over time or
storage, ignoring rusting centres.

Suffering s**t they even have expiry dates on bottled water now.

Paul Mc Cann

Tim Lamb wrote:

News to me that angle grinder discs have a use by date!
I tend to purchase 10 at a time and they sit in a damp, unheated
workshop until needed.

Must admit my stock sitting in the shed is probably 4-5 years old

Wasn't that an offset centre? To me they looked to be *thin* grinding
discs.

Looking again, yes they do seem to have a depressed centre

Looking at his other videos, seems he's been cutting out rotten sills
(and presumably the old bulkhead) and then grinding down welds on his
replaced bulkhead.

Hopefully he'll post further updates ...

On Tue, 13 Sep 2011 09:36:06 +0100, Andy Burns
wrote:

Bad that the expiry date had been over-stamped,

If it has been done properly there is nothing wrong with it at all and
it is a common procedure. The life limit assumes pretty much worst
case storage conditions. Out of date bulk stock which has been stored
appropriately can be life extend by the manufacturer or an appropriate
test house after inspection and sample testing. This would be
perfectly normal, safe and acceptable. In this case there is both a
batch number for traceability and an expiry date so it looks as if
this is what has been done.

If sourced from a quality supplier like "knockoffwheels34" on eBay
then it is of course possible that a batch of old discs has been
"rescued" from the waste chain and simply had stickers applied.

I'm rather surprised there is no wear on the back of the broken discs
though. If used for cutting I'd expect to see the backing worn off
almost immediately. Using a cutting disc for heavy grinding is
likely to lead to disc failure.

Scott M wrote:

Paul - xxx wrote:

TBH I never knew they had a 'use by' date, better check mine as I've
just bought a stack ready to attack the Landrover ... so thanks for
posting ..

I must admit I've always used the UseBy date as advisory on discs. I
couldn't quite see why they would deteriorate with time. Presumably,
from this, they get brittle with age.

OTOH, looking at his other vids it's possible that he was grinding
with them (restoration of a Ford(?) 100E) - the vid on 4th Sep refers
to cleaning up rust.

Also, looking at the disc, unless it gave up as soon as it touched
the work, there's no sign of damage on the text side of the disc
which starts gets worn away as soon as you cut any depth.

Much like many people I guess, if I say I've been grinding off the
sills on the Landrover, what I might mean is that I used cutting discs
to cut them off, grinding discs to grind down the welds and a flapdisk
to finish off nicely.

But yes, there would probably be some wear apparent to the rest of the
disc, unless it broke up immediately on contact .. or if he made a very
heavy initial contact .. or dropped it while turned on!

--
Paul - xxx

"Dave Plowman" wrote in message
...
From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

I worked in an Engineering Shop for 33 years, and the worst I ever saw was
just one or two boiler suits get snagged.

I put "angle grinder accidents" into Youtube search.

And got
http://www.youtube.com/results?searc... oq=angle+gri

I only watched the first one!!! http://www.youtube.com/watch?v=W69wh7QJP3U

Be Safe.

Baz

In message , Andy
Burns writes
Tim Lamb wrote:

News to me that angle grinder discs have a use by date!
I tend to purchase 10 at a time and they sit in a damp, unheated
workshop until needed.

Must admit my stock sitting in the shed is probably 4-5 years old

Wasn't that an offset centre? To me they looked to be *thin* grinding
discs.

Looking again, yes they do seem to have a depressed centre

Looking at his other videos, seems he's been cutting out rotten sills
(and presumably the old bulkhead) and then grinding down welds on his
replaced bulkhead.

Hopefully he'll post further updates ...

I have since checked my stock. Bosch.... no use by dates.

Parting off metal is tricky as stored stresses or leverage can pinch the
disc. This has happened to me on lots of occasions so far without damage
to discs or person.

regards

--
Tim Lamb

On 13/09/2011 10:39, fred wrote:
On 13 Sep, 09:43, Jim wrote:
On Sep 13, 9:24 am, Dave wrote:

From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

|I've never heard of that before

and anyway what no gloves etc?!?!

Jim K

Wonder was he wearing goggles ?

Expiry date on angle grinder discs is b****x. Ditto storage
conditions. These discs are abrasive material held in a resin. Could
someone explain to me how they would deteriorate over time or
storage, ignoring rusting centres.

It is an inherent property of the resin that it deteriorates over time,
which is why all grinding discs for hand-held tools have a use by date
that is three years from the date of manufacture.

Any organic (resin, rubber or shellac) bonded wheel, carrying code B or
BF, can also be adversely affected by moisture, heat, freezing, acids
and alkalis, which is why the storage is important.

Colin Bignell

On Sep 13, 11:00*am, Peter Parry wrote:

I'm rather surprised there is no wear on the back of the broken discs
though. *If used for cutting I'd expect to see the backing worn off
almost immediately. *

Amen to that. We've got disks labelled "cutting", a speaker who keeps
referring to them as "grinding" disks, and a wear pattern consistent
with grinding use. In the absence of further information, it's not the
disk maker or seller I'd be looking to blame here.

Cutting and grinding disks are made differently, with different
reinforcements. If you grind on the side of a cutting disk, it'll
explode, no matter who made it or how recently.

On Sep 13, 9:43*am, Jim K wrote:

and anyway what no gloves etc?!?!

My angle grinder gloves are gel anti-vibration and have almost no back
of the hand protection. If I'm in need of such, I wear one all-leather
glove over the top of the gel glove, but that's unusual.

As he does say in the video though, a disk guard might protect you
from fragments coming off, but a burst disk will hit the guard and
bounce out sideways.

On Sep 13, 10:39*am, fred wrote:

These discs are abrasive material held in a resin. Could
someone explain to me how they would deteriorate over time or
storage, *ignoring rusting centres.

_Very_ easily. The reinforcing mesh is fibrous and somewhat
hygroscopic. This is what fails, if stored damp.

It's a real problem, and the bloke in the video would be right to make
an issue of it. However a simple date is far too simple.

Dean Heighington formulated on Tuesday :
Andy Burns wrote:
Dave Plowman wrote:

From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

Bad that the expiry date had been over-stamped, they were cutting discs,
yet he kept saying grinding, I wonder whether he was using them for cutting
or grinding?

And where did he get them from?
Boot sale?
Tis bad though and good that he's trying to warn others.

The thickness would suggest they were grinding disks, yet they were
clearly marked cutting.

--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk

On Sep 13, 3:26 pm, Andy Dingley wrote:
On Sep 13, 9:43 am, Jim K wrote:

and anyway what no gloves etc?!?!

My angle grinder gloves are gel anti-vibration and have almost no back
of the hand protection. If I'm in need of such, I wear one all-leather
glove over the top of the gel glove, but that's unusual.

mmm anti-vibe but with no protection.....

As he does say in the video though, a disk guard might protect you
from fragments coming off, but a burst disk will hit the guard and
bounce out sideways.

lets hope your risk assessment is up to par then ;)

Jim K

On Sep 13, 7:04*pm, Jim K wrote:

mmm anti-vibe but with no protection.....

Anti vibration gloves obviously need to be flexible. Those that do
have protection usually limit it to small rigid fingertip stalls and
plates. If you have a heavy leather glove that claims anti-vibration
padding, it's usually either poor for high-frequency vibration (angle
grinder rather than rock drill) or you lose too much dexterity to use
it for precise work.

On Sep 13, 7:40 pm, Andy Dingley wrote:
On Sep 13, 7:04 pm, Jim K wrote:

mmm anti-vibe but with no protection.....

Anti vibration gloves obviously need to be flexible. Those that do
have protection usually limit it to small rigid fingertip stalls and
plates. If you have a heavy leather glove that claims anti-vibration
padding, it's usually either poor for high-frequency vibration (angle
grinder rather than rock drill) or you lose too much dexterity to use
it for precise work.

erm.... angle grinder & "precise work"....?

Jim K

Dave Plowman wrote:

From another forum:-
http://www.youtube.com/watch?v=IthnhIZz71w

Man saws off own thumb, surgeons replace it with big toe
http://www.bbc.co.uk/news/uk-england-bristol-14903846

Andy Burns wrote:
Dave Plowman wrote:

From another forum:-
http://www.youtube.com/watch?v=IthnhIZz71w

Man saws off own thumb, surgeons replace it with big toe
http://www.bbc.co.uk/news/uk-england-bristol-14903846

I "know" someone who has had part of his foot grafted on to his hand...
Part of his palm IIRC and I joked about it smelling of cheese and he
said that it often did... Especially in the morning!
I **** you not...

--
What else are opposable thumbs for? Get to me at
masterfix{at}btinternet{dot}com

On 13/09/2011 15:24, Andy Dingley wrote:
On Sep 13, 11:00 am, Peter wrote:

I'm rather surprised there is no wear on the back of the broken discs
though. If used for cutting I'd expect to see the backing worn off
almost immediately.

Amen to that. We've got disks labelled "cutting", a speaker who keeps
referring to them as "grinding" disks, and a wear pattern consistent
with grinding use. In the absence of further information, it's not the
disk maker or seller I'd be looking to blame here.

I just posted a comment on his channel to see if we can get a bit more
information about the circumstances, and what he was trying to do...


--
Cheers,

John.

/================================================== ===============\
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| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On Sep 14, 7:01 am, Jim K wrote:
On Sep 13, 7:40 pm, Andy Dingley wrote:

On Sep 13, 7:04 pm, Jim K wrote:

mmm anti-vibe but with no protection.....

Anti vibration gloves obviously need to be flexible. Those that do
have protection usually limit it to small rigid fingertip stalls and
plates. If you have a heavy leather glove that claims anti-vibration
padding, it's usually either poor for high-frequency vibration (angle
grinder rather than rock drill) or you lose too much dexterity to use
it for precise work.

erm.... angle grinder & "precise work"....?

I wear leather gloves (and goggles and earmuffs) while using an angle
grinder, for reasonably precise work. Most of this shiny clamp was
made from a solid block of steel using a hacksaw and angle grinder:
http://i32.tinypic.com/fwhsgz.jpg

On Sep 14, 9:22 am, Matty F wrote:
On Sep 14, 7:01 am, Jim K wrote:

On Sep 13, 7:40 pm, Andy Dingley wrote:

On Sep 13, 7:04 pm, Jim K wrote:

mmm anti-vibe but with no protection.....

Anti vibration gloves obviously need to be flexible. Those that do
have protection usually limit it to small rigid fingertip stalls and
plates. If you have a heavy leather glove that claims anti-vibration
padding, it's usually either poor for high-frequency vibration (angle
grinder rather than rock drill) or you lose too much dexterity to use
it for precise work.

erm.... angle grinder & "precise work"....?

I wear leather gloves (and goggles and earmuffs) while using an angle
grinder, for reasonably precise work. Most of this shiny clamp was
made from a solid block of steel using a hacksaw and angle grinder:http://i32.tinypic.com/fwhsgz.jpg

your dedication is already legend Matty ;)

what do you make of these anti-vibe but no protection gloves?

Jim K

On Sep 14, 9:09 pm, Jim K wrote:

what do you make of these anti-vibe but no protection gloves?

I've not used them, or even knew they existed. They sound a good idea
maybe for an orbital sander. Except that I reckon that cured my
arthritis after sanding a wall of my house!
I wear leather gloves because I'm sick of getting metal splinters in
my fingers. I don't think the gloves would help if I put my hand on
the linisher, which is a fearsome dangerous looking thing with a large
open belt.

On Sep 14, 11:08 am, Matty F wrote:
On Sep 14, 9:09 pm, Jim K wrote:

what do you make of these anti-vibe but no protection gloves?

I've not used them, or even knew they existed. They sound a good idea
maybe for an orbital sander. Except that I reckon that cured my
arthritis after sanding a wall of my house!


tell me more immediately .......

Jim K

In message
, Jim
K writes
On Sep 14, 11:08 am, Matty F wrote:
On Sep 14, 9:09 pm, Jim K wrote:

what do you make of these anti-vibe but no protection gloves?

I've not used them, or even knew they existed. They sound a good idea
maybe for an orbital sander. Except that I reckon that cured my
arthritis after sanding a wall of my house!


tell me more immediately .......

Electric cattle/sheep fence has similar dubious claims:-)

regards

--
Tim Lamb

On Sep 14, 10:40 pm, Jim K wrote:
On Sep 14, 11:08 am, Matty F wrote:

On Sep 14, 9:09 pm, Jim K wrote:

what do you make of these anti-vibe but no protection gloves?

I've not used them, or even knew they existed. They sound a good idea
maybe for an orbital sander. Except that I reckon that cured my
arthritis after sanding a wall of my house!

tell me more immediately .......

I was suffering joint pains in my fingers which I assume was
arthritis.
I have a nice Bosch orbital sander which I was using for a few hours.
The vibration made the pain go away.
I also discovered that if I eat curry the pain comes back. So I don't
eat curry any more. I probably have a food allergy.
I suspect that an orbital sander is bad for Dupuytren's Contracture so
anti-vibe gloves may be good if you have Viking DNA like me.

In article
s.com, Matty F scribeth thus
On Sep 14, 10:40 pm, Jim K wrote:
On Sep 14, 11:08 am, Matty F wrote:

On Sep 14, 9:09 pm, Jim K wrote:

what do you make of these anti-vibe but no protection gloves?

I've not used them, or even knew they existed. They sound a good idea
maybe for an orbital sander. Except that I reckon that cured my
arthritis after sanding a wall of my house!

tell me more immediately .......

I was suffering joint pains in my fingers which I assume was
arthritis.
I have a nice Bosch orbital sander which I was using for a few hours.
The vibration made the pain go away.

Odd?..

I also discovered that if I eat curry the pain comes back. So I don't
eat curry any more. I probably have a food allergy.


I have heard several anecdotal reports of Cumin in Curry helping that
complaint...


But its probably that it helps some people more than others...

I suspect that an orbital sander is bad for Dupuytren's Contracture so
anti-vibe gloves may be good if you have Viking DNA like me.

--
Tony Sayer

On 13/09/2011 09:59, Tim Lamb wrote:
In message , Andy
Burns writes
Dave Plowman wrote:

From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

Bad that the expiry date had been over-stamped, they were cutting
discs, yet he kept saying grinding, I wonder whether he was using them
for cutting or grinding?

News to me that angle grinder discs have a use by date!

Funnily enough, we've just had a safety memo go around at work after a
disk failed on site and was later found to be out of date. Before that I
hadn't realised either.

I tend to purchase 10 at a time and they sit in a damp, unheated
workshop until needed.

In at least one case for me, right under a leak in the roof for some time!

Wasn't that an offset centre? To me they looked to be *thin* grinding
discs.

Definitely offset.

On 13/09/2011 10:39, fred wrote:
On 13 Sep, 09:43, Jim wrote:
On Sep 13, 9:24 am, Dave wrote:

From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

|I've never heard of that before

and anyway what no gloves etc?!?!

Jim K

Wonder was he wearing goggles ?

Expiry date on angle grinder discs is b****x.

No. We've just had a memo around after a disk exploded on site. It
specifically referred to investigation later showing the disk being out
of date and reminded everyone to check the date on the disk before use.

SteveW

On Tue, 13 Sep 2011 09:24:40 +0100, Dave Plowman
wrote:

From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

'Kinell! Not so much to do with the date, more the crap quality. I've
got and use discs that are a few years old and none have ever done
that.

In message
,
Matty F writes
On Sep 14, 10:40 pm, Jim K wrote:
On Sep 14, 11:08 am, Matty F wrote:

On Sep 14, 9:09 pm, Jim K wrote:

what do you make of these anti-vibe but no protection gloves?

I've not used them, or even knew they existed. They sound a good idea
maybe for an orbital sander. Except that I reckon that cured my
arthritis after sanding a wall of my house!

tell me more immediately .......

I was suffering joint pains in my fingers which I assume was
arthritis.
I have a nice Bosch orbital sander which I was using for a few hours.
The vibration made the pain go away.
I also discovered that if I eat curry the pain comes back. So I don't
eat curry any more. I probably have a food allergy.
I suspect that an orbital sander is bad for Dupuytren's Contracture so
anti-vibe gloves may be good if you have Viking DNA like me.

In the early 60s, at some London railway stations, you might find
something that looked like a weighing machine, with a platform you stood
on and a slot you put your money in. The platform then vibrated
vigorously for a couple of minutes. It was quite popular with tourists
whose legs were aching from trudging around all day sightseeing. I tried
one once, and it certainly did work - but only for a few minutes, after
which all the aches and pains slowly returned.
--
Ian

On 13/09/2011 09:24, Dave Plowman wrote:
From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

I notice he has taken the vid down. No response to any of the questions
about whether he was being a muppet either...

--
Cheers,

John.

/================================================== ===============\
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\================================================= ================/

On Fri, 23 Sep 2011 17:59:07 +0100, John Rumm wrote:

On 13/09/2011 09:24, Dave Plowman wrote:
From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

I notice he has taken the vid down. No response to any of the questions
about whether he was being a muppet either...

D'oh!

Oh, I checked all my DeWalt discs the other day - none of them have
expiry dates. Do the ones in the UK? Maybe DeWalt ones never do - or
maybe the need for a date is just an EU/UK thing?

cheers

Jules

On 23/09/2011 17:59, John Rumm wrote:
On 13/09/2011 09:24, Dave Plowman wrote:
From another forum:-

http://www.youtube.com/watch?v=IthnhIZz71w

And I was scared enough of them before...

I notice he has taken the vid down. No response to any of the questions
about whether he was being a muppet either...

I lied... I did actually get a response - just it was to a gmail account
I don't often look at.

He said they broke apart very soon after being spun up and as he started
to make a cut...

So dodgy discs rather than inappropriate use does sound like a distinct
possibility based on what we know at the moment.

--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
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