I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application due to the shallow nature of the groove.

Any suggestions ?

On 26/08/16 12:05, fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application due to the shallow nature of the groove.

Any suggestions ?

use the groove as a female mould for something that won't stick to it,
and measure what you pull out?

Or use feeler gauge plus a bit of something to decide how wide it is and
measure what you pull out again.



--
Religion is regarded by the common people as true, by the wise as
foolish, and by the rulers as useful.

(Seneca the Younger, 65 AD)

On 26/08/2016 12:05, fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application due to the shallow nature of the groove.

Any suggestions ?


Plasticine, or similar, then gently measure the outside width with your
calipers. Alternatively, plane a piece of wood until it's a good fit and
measure that.

On 26/08/2016 14:28, wrote:
On 26/08/2016 12:05, fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide
and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for
this application due to the shallow nature of the groove.

Any suggestions ?


Plasticine, or similar, then gently measure the outside width with your
calipers. Alternatively, plane a piece of wood until it's a good fit and
measure that.

Or file a bit of aluminium strip so that it just fits the groove, and
then measure that with digital calipers.

Or find a drill bit whose shank just fits, and measure that.
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

On 26/08/2016 12:05, fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application due to the shallow nature of the groove.

Any suggestions ?


If the profile of the groove is rectangular (or near enough) the
technique I was taught was to measure with, and express the result in
units of, strips torn from Players No 6 packs

--
Robin
reply-to address is (intended to be) valid

Robin Wrote in message:
On 26/08/2016 12:05, fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application due to the shallow nature of the groove.

Any suggestions ?


If the profile of the groove is rectangular (or near enough) the
technique I was taught was to measure with, and express the result in
units of, strips torn from Players No 6 packs


:-)
+/- a cock hair?

--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

jim k Wrote in message:
Robin Wrote in message:
On 26/08/2016 12:05, fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application due to the shallow nature of the groove.

Any suggestions ?


If the profile of the groove is rectangular (or near enough) the
technique I was taught was to measure with, and express the result in
units of, strips torn from Players No 6 packs


:-)
+/- a cock hair?

--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/


+/- a cat's cock hair?

--


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

"TheChief" wrote in message
...
jim k Wrote in message:
Robin Wrote in message:
On 26/08/2016 12:05, fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide
and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this
application due to the shallow nature of the groove.

Any suggestions ?


If the profile of the groove is rectangular (or near enough) the
technique I was taught was to measure with, and express the result in
units of, strips torn from Players No 6 packs


:-)
+/- a cock hair?

Depends whether he's fair-haired, brown-haired, ginger or black. The
diameter of hairs varies with colour, apparently - I forget which colours
tend to have the finest and coarsest hairs. Applies to head hair, but I'm
sure it's true for *any* body hair :-)

"NY" Wrote in message:
"TheChief" wrote in message
...
jim k Wrote in message:
Robin Wrote in message:
On 26/08/2016 12:05, fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide
and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this
application due to the shallow nature of the groove.

Any suggestions ?


If the profile of the groove is rectangular (or near enough) the
technique I was taught was to measure with, and express the result in
units of, strips torn from Players No 6 packs


:-)
+/- a cock hair?

Depends whether he's fair-haired, brown-haired, ginger or black. The
diameter of hairs varies with colour, apparently - I forget which colours
tend to have the finest and coarsest hairs. Applies to head hair, but I'm
sure it's true for *any* body hair :-)



Now you're just splitting hairs shurely?

--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

On Sat, 27 Aug 2016 00:57:33 +0100, jim wrote:

"NY" Wrote in message:
"TheChief" wrote in message
...
jim k Wrote in message:
Robin Wrote in message:
On 26/08/2016 12:05, fred wrote:
I want to measure the width of a groove which is only about 3.5mm
wide and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for
this application due to the shallow nature of the groove.

Any suggestions ?


If the profile of the groove is rectangular (or near enough) the
technique I was taught was to measure with, and express the result
in units of, strips torn from Players No 6 packs


:-)
+/- a cock hair?

Depends whether he's fair-haired, brown-haired, ginger or black. The
diameter of hairs varies with colour, apparently - I forget which
colours tend to have the finest and coarsest hairs. Applies to head
hair, but I'm sure it's true for *any* body hair :-)



Now you're just splitting hairs, surely?

I've only ever heard the tolerance expressed as "Give or take a Gnat's
dick". No need to worry about hair colouring when the tolerance is given
as a Gnat's dick. :-)

However, ISTR occasionally hearing a variation of that phrase where
"Gnat's" is replaced by "Midge's" which I've always assumed was simply
Scotch for "Gnat".

If a Midge *is* actually a bigger version of a Gnat, I suppose that
could account for the variations in tightness/slackness of fit in joints
made up from these measurements. I've always assumed the phrase simply
meant any tolerance errors were so immeasurably small as to not matter.

--
Johnny B Good

Johnny B Good Wrote in message:
On Sat, 27 Aug 2016 00:57:33 +0100, jim wrote:

"NY" Wrote in message:
"TheChief" wrote in message
...
jim k Wrote in message:
Robin Wrote in message:
On 26/08/2016 12:05, fred wrote:
I want to measure the width of a groove which is only about 3.5mm
wide and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for
this application due to the shallow nature of the groove.

Any suggestions ?


If the profile of the groove is rectangular (or near enough) the
technique I was taught was to measure with, and express the result
in units of, strips torn from Players No 6 packs


:-)
+/- a cock hair?

Depends whether he's fair-haired, brown-haired, ginger or black. The
diameter of hairs varies with colour, apparently - I forget which
colours tend to have the finest and coarsest hairs. Applies to head
hair, but I'm sure it's true for *any* body hair :-)



Now you're just splitting hairs, surely?

I've only ever heard the tolerance expressed as "Give or take a Gnat's
dick". No need to worry about hair colouring when the tolerance is given
as a Gnat's dick. :-)

However, ISTR occasionally hearing a variation of that phrase where
"Gnat's" is replaced by "Midge's" which I've always assumed was simply
Scotch for "Gnat".

If a Midge *is* actually a bigger version of a Gnat, I suppose that
could account for the variations in tightness/slackness of fit in joints
made up from these measurements. I've always assumed the phrase simply
meant any tolerance errors were so immeasurably small as to not matter.


Whoosh!;-)
--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

"TheChief" wrote in message
...
jim k Wrote in message:
Robin Wrote in message:
On 26/08/2016 12:05, fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide
and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this
application due to the shallow nature of the groove.

Any suggestions ?


If the profile of the groove is rectangular (or near enough) the
technique I was taught was to measure with, and express the result in
units of, strips torn from Players No 6 packs

I must be very slow on the uptake. I saw the thread title "measuring devis"
and I thought "what's a devi (*) and why is someone measuring them?"

It's only just dawned on me that "devis" is supposed to be "device" :-)



(*) Apart from being the sexy money-lender in Patrick Rothfuss's "Kvoth"
novels.

On 26/08/16 23:04, TheChief wrote:
jim k Wrote in message:
Robin Wrote in message:
On 26/08/2016 12:05, fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application due to the shallow nature of the groove.

Any suggestions ?


If the profile of the groove is rectangular (or near enough) the
technique I was taught was to measure with, and express the result in
units of, strips torn from Players No 6 packs


:-)
+/- a cock hair?

--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/


+/- a cat's cock hair?

Gnats cock in proper engineering units

--
€œit should be clear by now to everyone that activist environmentalism
(or environmental activism) is becoming a general ideology about humans,
about their freedom, about the relationship between the individual and
the state, and about the manipulation of people under the guise of a
'noble' idea. It is not an honest pursuit of 'sustainable development,'
a matter of elementary environmental protection, or a search for
rational mechanisms designed to achieve a healthy environment. Yet
things do occur that make you shake your head and remind yourself that
you live neither in Joseph Stalins Communist era, nor in the Orwellian
utopia of 1984.€�

Vaclav Klaus

In article ,
fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide
and 1-3 mm deep. Ordinary Mitutoyo calipers with pointed tips are not
much good for this application due to the shallow nature of the groove.

Any suggestions ?

A set of 'number' drill bits it useful for this sort of thing. Depending
on just how accurate you need the measurement to be.

--
*Until I was thirteen, I thought my name was SHUT UP .

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

In article ,
Dave Plowman (News) wrote:
In article ,
fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide
and 1-3 mm deep. Ordinary Mitutoyo calipers with pointed tips are not
much good for this application due to the shallow nature of the groove.

Any suggestions ?

A set of 'number' drill bits it useful for this sort of thing. Depending
on just how accurate you need the measurement to be.

SNAP! I have a box of numbered drills bought very cheaply many years ago
off a market stall kept just for this. You need to be careful when
measuring if the larger sizes have a number stamped into them near the end
of the shank as the edges are raised slightly.

Alan

--


Using an ARMX6

On Fri, 26 Aug 2016 04:05:56 -0700 (PDT), fred
wrote:

I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application due to the shallow nature of the groove.

Use a measuring magnifier such as
https://www.emsdiasum.com/microscopy...measuring.aspx

On Saturday, August 27, 2016 at 3:29:09 PM UTC+1, Peter Parry wrote:
On Fri, 26 Aug 2016 04:05:56 -0700 (PDT), fred
wrote:

I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application due to the shallow nature of the groove.

Use a measuring magnifier such as
https://www.emsdiasum.com/microscopy...measuring.aspx

i like the sound of that.

Will investigat further

Many thanks

On Saturday, August 27, 2016 at 12:16:45 PM UTC+1, Dave Plowman (News) wrote:
In article ,
fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide
and 1-3 mm deep. Ordinary Mitutoyo calipers with pointed tips are not
much good for this application due to the shallow nature of the groove.

Any suggestions ?

A set of 'number' drill bits it useful for this sort of thing. Depending
on just how accurate you need the measurement to be.

--
*Until I was thirteen, I thought my name was SHUT UP .

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

Yes that sound possible If I can get a cheap set of metric ones I\ll give it a try

"fred" wrote in message
...
On Saturday, August 27, 2016 at 12:16:45 PM UTC+1, Dave Plowman (News)
wrote:
In article ,
fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide
and 1-3 mm deep. Ordinary Mitutoyo calipers with pointed tips are not
much good for this application due to the shallow nature of the groove.

Any suggestions ?

A set of 'number' drill bits it useful for this sort of thing. Depending
on just how accurate you need the measurement to be.

Yes that sound possible If I can get a cheap set of metric ones I\ll give
it a try

You haven't said if you want to measure the depth or the width of the groove
or both.

On 27/08/16 19:48, KYW wrote:


"fred" wrote in message
...
On Saturday, August 27, 2016 at 12:16:45 PM UTC+1, Dave Plowman (News)
wrote:
In article ,
fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide
and 1-3 mm deep. Ordinary Mitutoyo calipers with pointed tips are not
much good for this application due to the shallow nature of the
groove.

Any suggestions ?

A set of 'number' drill bits it useful for this sort of thing. Depending
on just how accurate you need the measurement to be.

Yes that sound possible If I can get a cheap set of metric ones I\ll
give it a try

You haven't said if you want to measure the depth or the width of the
groove or both.
Most calipers have depth gauges


--
"The great thing about Glasgow is that if there's a nuclear attack it'll
look exactly the same afterwards."

Billy Connolly

"fred" wrote in message
...
On Saturday, August 27, 2016 at 3:29:09 PM UTC+1, Peter Parry wrote:
On Fri, 26 Aug 2016 04:05:56 -0700 (PDT), fred
wrote:

I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm
deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application
due to the shallow nature of the groove.

Use a measuring magnifier such as
https://www.emsdiasum.com/microscopy...measuring.aspx

i like the sound of that.

Will investigat further

Many thanks

Yup sure sounds good to me.

Spend £68 on a magnifier

As against gradually reducing a fillet of softwood using a plane and/or sandpaper
until it can be inserted into the slot and measuring the outside of the fillet
with the Mitutoyo* calipers.


michael adams

*It goes without saying of course that Mitutyo calipers are a top of the range item
with prices to match.

Its just a pity that the same can't be said for whatever can be found between the OP's
ears.

In article ,
fred wrote:
A set of 'number' drill bits it useful for this sort of thing.
Depending on just how accurate you need the measurement to be.

Yes that sound possible If I can get a cheap set of metric ones I\ll
give it a try

Are there metric ones?

--
*Experience is something you don't get until just after you need it.*

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

On 27/08/2016 18:04, fred wrote:
On Saturday, August 27, 2016 at 3:29:09 PM UTC+1, Peter Parry wrote:
On Fri, 26 Aug 2016 04:05:56 -0700 (PDT), fred
wrote:

I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application due to the shallow nature of the groove.

Use a measuring magnifier such as
https://www.emsdiasum.com/microscopy...measuring.aspx

i like the sound of that.

Will investigat further

Also check out "travelling microscope"

(and no, its not a small one designed for hand luggage!)

--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On 8/27/2016 8:54 PM, michael adams wrote:
"fred" wrote in message
...
On Saturday, August 27, 2016 at 3:29:09 PM UTC+1, Peter Parry wrote:
On Fri, 26 Aug 2016 04:05:56 -0700 (PDT), fred
wrote:

I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm
deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application
due to the shallow nature of the groove.

Use a measuring magnifier such as
https://www.emsdiasum.com/microscopy...measuring.aspx

i like the sound of that.

Will investigat further

Many thanks

Yup sure sounds good to me.

Spend £68 on a magnifier

I picked up a second hand one on eBay for much less than that (but in
truth it has not had much use).

That said, I'd probably go for a drill bit plus feeler gauges.

On Saturday, August 27, 2016 at 8:54:42 PM UTC+1, michael adams wrote:
"fred" wrote in message
...
On Saturday, August 27, 2016 at 3:29:09 PM UTC+1, Peter Parry wrote:
On Fri, 26 Aug 2016 04:05:56 -0700 (PDT), fred
wrote:

I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm
deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application
due to the shallow nature of the groove.

Use a measuring magnifier such as
https://www.emsdiasum.com/microscopy...measuring.aspx

i like the sound of that.

Will investigat further

Many thanks

Yup sure sounds good to me.

Spend £68 on a magnifier

As against gradually reducing a fillet of softwood using a plane and/or sandpaper
until it can be inserted into the slot and measuring the outside of the fillet
with the Mitutoyo* calipers.


michael adams

*It goes without saying of course that Mitutyo calipers are a top of the range item
with prices to match.

Its just a pity that the same can't be said for whatever can be found between the OP's
ears.

Suffering ****. Faff around with little bits of softwood, which will likely deform with the use of calipers, in an attempt to judge the width of a slot 1-2 mm deep and 2-3mm wide with accuracy ?

No thanks. I have better things to do with my time. This is an operation I have to carry out once a week and trial and error is exactly what I am tryimg to avoid.

Incidentally Mitutoyo calipers are NOT the most expensive but I.M.E. are the best value for money for their accuracy, build quality and long battery life.

fred Wrote in message:
I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application due to the shallow nature of the groove.

Any suggestions ?


Tyre tread depth gauge& feeler gauge?

--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

On 2016-08-27, KYW wrote:
"fred" wrote in message
...
On Saturday, August 27, 2016 at 12:16:45 PM UTC+1, Dave Plowman (News)
wrote:
In article ,
fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide
^^^^^^^^^^^^^^^^^^^^^^^^^^^
and 1-3 mm deep. Ordinary Mitutoyo calipers with pointed tips are not
much good for this application due to the shallow nature of the groove.

Any suggestions ?

A set of 'number' drill bits it useful for this sort of thing. Depending
on just how accurate you need the measurement to be.

Yes that sound possible If I can get a cheap set of metric ones I\ll give
it a try

You haven't said if you want to measure the depth or the width of the groove
or both.

He said he wanted to measure the width. (If he wants the depth as well, maybe
he's already used the depth gauge on his calipers and not had a problem.)