Putting up hundreds of feet of MDF trim. (1/2" casings, baseboards etc.) Using 2" finish nails in the gun. Only about one in nine nails sets below the surface. Pain in the ass to bend and set nails at odd angles, even though I can swing a hammer with either hand.

Gun pressure set to 90 psi. Any suggestions? Buy a better gun? Would lubricating the nails help.
BTW, the nail heads are proud by about 1/32".

All advise appreciated.

Ivan Vegvary

On 2/14/2013 9:30 AM, Ivan Vegvary wrote:
Putting up hundreds of feet of MDF trim. (1/2" casings, baseboards etc.) Using 2" finish nails in the gun. Only about one in nine nails sets below the surface. Pain in the ass to bend and set nails at odd angles, even though I can swing a hammer with either hand.

Gun pressure set to 90 psi. Any suggestions? Buy a better gun? Would lubricating the nails help.
BTW, the nail heads are proud by about 1/32".

All advise appreciated.

I'd crank that puppy up to at least 100psi, if not 110 and see how that
works.

Remember, if you start at 90, and depending upon how you have your
compressor to kick in, you are probably shooting at a lower pressure
than your setting after the first few shots.

--
eWoodShop: www.eWoodShop.com
Wood Shop: www.e-WoodShop.net
https://plus.google.com/114902129577517371552/posts
http://www.custommade.com/by/ewoodshop/
KarlCaillouet@ (the obvious)

"Swingman" wrote in message
...
On 2/14/2013 9:30 AM, Ivan Vegvary wrote:
Putting up hundreds of feet of MDF trim. (1/2" casings, baseboards etc.)
Using 2" finish nails in the gun. Only about one in nine nails sets
below the surface. Pain in the ass to bend and set nails at odd angles,
even though I can swing a hammer with either hand.

Gun pressure set to 90 psi. Any suggestions? Buy a better gun? Would
lubricating the nails help.
BTW, the nail heads are proud by about 1/32".

All advise appreciated.

I'd crank that puppy up to at least 100psi, if not 110 and see how that
works.

Remember, if you start at 90, and depending upon how you have your
compressor to kick in, you are probably shooting at a lower pressure than
your setting after the first few shots.

Do you have your gun "depth setting" adjusted to your material, it may have
been moved or knocked out of adjustment and is now set too shallow. All my
guns can be adjusted to bury the nail if I crank them to maximum depth.

On Feb 14, 9:59*am, Swingman wrote:

I'd crank that puppy up to at least 100psi, if not 110 and see how that
works.

Remember, if you start at 90, and depending upon how you have your
compressor to kick in, you are probably shooting at a lower pressure
than your setting after the first few shots.

Bingo. Betcha that's it. Find out what max pressure is on the gun
and put it there. Senco isn't known for its driving power anyway, so
it needs everything it can get. The recommended pressure on the gun
is probably 100 psi, but it is important to remember you didn't
specify anything other than "a gun".

So are you using a brad nailer? A 16 ga nailer (a favorite of mine),
possibly 15 ga angle nailer? All work well for baseboards and most
other trims.

Better questions will give you better results when you ask.

I had some older guns that had the problem you described and I found
that problem when switched to a smaller compressor to use for trim.
So that the compressor would not run as frequently, they set the
pressure regulator at 85 lbs before it would kick on. So my fix was
that I would shoot about 5 times, then would disconnect the coupling
at the gun just enough to bleed enough air to get the compressor to
kick. Shoot 5 more times, then repeat. The guns finally wore out and
were replaced. Some newer regulators have a set screw on them and you
adjust the "kick on" pressure up or down as you like.

If your gun is newer, it will have depth control, so check it as Leon
says. 1/32" isn't much, so you might be able to adjust that out.

Robert

On 2/14/2013 9:30 AM, Ivan Vegvary wrote:
Putting up hundreds of feet of MDF trim. (1/2" casings, baseboards etc.) Using 2" finish nails in the gun. Only about one in nine nails sets below the surface. Pain in the ass to bend and set nails at odd angles, even though I can swing a hammer with either hand.

Gun pressure set to 90 psi. Any suggestions? Buy a better gun? Would lubricating the nails help.
BTW, the nail heads are proud by about 1/32".

All advise appreciated.

Ivan Vegvary



I set my pressure to 120 and always have on my 20+year old Senco
finisher. Depending on the age of the gun, if older like mine, it may
be hard to find a better one. If increased pressure does not fix it,
might be time for an OH.

On 2/14/2013 10:30 AM, Ivan Vegvary wrote:
Putting up hundreds of feet of MDF trim. (1/2" casings, baseboards
etc.) Using 2" finish nails in the gun. Only about one in nine
nails sets below the surface. Pain in the ass to bend and set nails
at odd angles, even though I can swing a hammer with either hand.

Gun pressure set to 90 psi. Any suggestions? Buy a better gun?
Would lubricating the nails help. BTW, the nail heads are proud by
about 1/32".

All advise appreciated.

Ivan Vegvary


In addition to other suggestions, I would check size of airline. 1/4" is
often not large enough to deliver enough volume of air for some brands
of air tools to function properly. I typically use at least 3/8" line if
the run is more than a few feet.

--
Digger
Bob O'Dell

On 2/14/2013 10:47 AM, Digger wrote:
On 2/14/2013 10:30 AM, Ivan Vegvary wrote:
Putting up hundreds of feet of MDF trim. (1/2" casings, baseboards
etc.) Using 2" finish nails in the gun. Only about one in nine
nails sets below the surface. Pain in the ass to bend and set nails
at odd angles, even though I can swing a hammer with either hand.

Gun pressure set to 90 psi. Any suggestions? Buy a better gun?
Would lubricating the nails help. BTW, the nail heads are proud by
about 1/32".

All advise appreciated.

Ivan Vegvary


In addition to other suggestions, I would check size of airline. 1/4" is
often not large enough to deliver enough volume of air for some brands
of air tools to function properly. I typically use at least 3/8" line if
the run is more than a few feet.



What brand nailer do you need this with? I have used 150', 1/4" with a
Senco finish nailer and a Bostitch framer with no problems. These
things don't use much air. You may not be able to shoot as fast on this
long run but 2 shots per second is fast enough for me when fence building.

On 2/14/2013 11:54 AM, Leon wrote:
On 2/14/2013 10:47 AM, Digger wrote:
On 2/14/2013 10:30 AM, Ivan Vegvary wrote:
Putting up hundreds of feet of MDF trim. (1/2" casings, baseboards
etc.) Using 2" finish nails in the gun. Only about one in nine
nails sets below the surface. Pain in the ass to bend and set nails
at odd angles, even though I can swing a hammer with either hand.

Gun pressure set to 90 psi. Any suggestions? Buy a better gun?
Would lubricating the nails help. BTW, the nail heads are proud by
about 1/32".

All advise appreciated.

Ivan Vegvary


In addition to other suggestions, I would check size of airline. 1/4" is
often not large enough to deliver enough volume of air for some brands
of air tools to function properly. I typically use at least 3/8" line if
the run is more than a few feet.



What brand nailer do you need this with? I have used 150', 1/4" with a
Senco finish nailer and a Bostitch framer with no problems. These
things don't use much air. You may not be able to shoot as fast on this
long run but 2 shots per second is fast enough for me when fence building.


Not trying to start a war here folks, just offered a simple thought and
suggestion.

I have 3 different brands of guns onhand and a compressor limited to max
125lbs. I've not used Senco but understand it is an industry standard
brand and have no idea what is recommended by the OEM.

I've had good luck with Dewalts and Bostitch using 1/4", even at 85-90,
but not so my very old Campbell Hausfields when fed from 1/4" line,
unless kept to short runs. Soft 3/4" pine is one thing, MDF is another
and 2" treated is another and Oak and... Even the style of nail being
shot (coated vs uncoated, etc) can have an effect upon depth of
penetration at a given combination of adjustments.

I have also found 1/4" line totally inadequate for tasks such as paint
guns, air hammers, impact wrenches, sanders, metal saws and files. And
so, regardless of anyone's law of physics, many supply issues of my own
experience were permenantely solved with 3/8" line and a larger volume tank.

The original op did not specify air source being used nor much else
except MDF, 2" nails and a Senco gun @ 90lbs. Others had already offered
good advice and I simply offered a suggestion, not a declaration.


--
Digger
Bob O'Dell

On 2/14/2013 1:06 PM, Digger wrote:
On 2/14/2013 11:54 AM, Leon wrote:
On 2/14/2013 10:47 AM, Digger wrote:
On 2/14/2013 10:30 AM, Ivan Vegvary wrote:
Putting up hundreds of feet of MDF trim. (1/2" casings, baseboards
etc.) Using 2" finish nails in the gun. Only about one in nine
nails sets below the surface. Pain in the ass to bend and set nails
at odd angles, even though I can swing a hammer with either hand.

Gun pressure set to 90 psi. Any suggestions? Buy a better gun?
Would lubricating the nails help. BTW, the nail heads are proud by
about 1/32".

All advise appreciated.

Ivan Vegvary


In addition to other suggestions, I would check size of airline. 1/4" is
often not large enough to deliver enough volume of air for some brands
of air tools to function properly. I typically use at least 3/8" line if
the run is more than a few feet.



What brand nailer do you need this with? I have used 150', 1/4" with a
Senco finish nailer and a Bostitch framer with no problems. These
things don't use much air. You may not be able to shoot as fast on this
long run but 2 shots per second is fast enough for me when fence building.


Not trying to start a war here folks, just offered a simple thought and
suggestion.

I have 3 different brands of guns onhand and a compressor limited to max
125lbs. I've not used Senco but understand it is an industry standard
brand and have no idea what is recommended by the OEM.

I've had good luck with Dewalts and Bostitch using 1/4", even at 85-90,
but not so my very old Campbell Hausfields when fed from 1/4" line,
unless kept to short runs. Soft 3/4" pine is one thing, MDF is another
and 2" treated is another and Oak and... Even the style of nail being
shot (coated vs uncoated, etc) can have an effect upon depth of
penetration at a given combination of adjustments.

I have also found 1/4" line totally inadequate for tasks such as paint
guns, air hammers, impact wrenches, sanders, metal saws and files. And
so, regardless of anyone's law of physics, many supply issues of my own
experience were permenantely solved with 3/8" line and a larger volume tank.

The original op did not specify air source being used nor much else
except MDF, 2" nails and a Senco gun @ 90lbs. Others had already offered
good advice and I simply offered a suggestion, not a declaration.


No war intended. :~) I was indeed curious what gun would require that
large of a hose. I have been on and worked on a bunch of job sites with
nailers working on 1/4" hose.

From what I understand Senco invented the nail gun. It apparently is
not the gun of choice these days. My Senco nailer was apparently the
gun of choice in 1989 when I bought it.

FWIW I have used that nail gun with a portable 7 gal air tank and
25',1/4" hose to shoot 10~15 times in quarter round in a house with no
electricity. Strange job. I made sure the hose was full before going
to the job.

Continuous use tools like those you mentioned above do need less
restriction for longer runs to operate more efficiently but if the hose
is 50' or shorter the 1/4" still worked fine in the automotive business
that I was in for 20+ years. The 1/4" hose was mainly used for air
drills, impact wrenches, air ratchets, zip guns, and in the body shop
for painting and sanding. Now the Coats tire machine did have a 3/8"
supply line as the bead expander would release enough air to inflate a a
tire in a split second. That machine however did have it's own air
reservoir, not even the 3/8" supply could keep it filled for more than
several seconds if the bead expander was in continuous use on the
difficult tires.

On 2/15/2013 10:49 AM, Leon wrote:
On 2/14/2013 1:06 PM, Digger wrote:
On 2/14/2013 11:54 AM, Leon wrote:


What brand nailer do you need this with? I have used 150', 1/4" with a
Senco finish nailer and a Bostitch framer with no problems. These
things don't use much air. You may not be able to shoot as fast on this
long run but 2 shots per second is fast enough for me when fence building.


Not trying to start a war here folks, just offered a simple thought and
suggestion.

I have 3 different brands of guns onhand and a compressor limited to max
125lbs. I've not used Senco but understand it is an industry standard
brand and have no idea what is recommended by the OEM.

I've had good luck with Dewalts and Bostitch using 1/4", even at 85-90,
but not so my very old Campbell Hausfields when fed from 1/4" line,
unless kept to short runs. Soft 3/4" pine is one thing, MDF is another
and 2" treated is another and Oak and... Even the style of nail being
shot (coated vs uncoated, etc) can have an effect upon depth of
penetration at a given combination of adjustments.

I have also found 1/4" line totally inadequate for tasks such as paint
guns, air hammers, impact wrenches, sanders, metal saws and files. And
so, regardless of anyone's law of physics, many supply issues of my own
experience were permenantely solved with 3/8" line and a larger volume tank.

The original op did not specify air source being used nor much else
except MDF, 2" nails and a Senco gun @ 90lbs. Others had already offered
good advice and I simply offered a suggestion, not a declaration.


No war intended. :~) I was indeed curious what gun would require that
large of a hose. I have been on and worked on a bunch of job sites with
nailers working on 1/4" hose.

From what I understand Senco invented the nail gun. It apparently is
not the gun of choice these days. My Senco nailer was apparently the
gun of choice in 1989 when I bought it.

FWIW I have used that nail gun with a portable 7 gal air tank and
25',1/4" hose to shoot 10~15 times in quarter round in a house with no
electricity. Strange job. I made sure the hose was full before going
to the job.

Continuous use tools like those you mentioned above do need less
restriction for longer runs to operate more efficiently but if the hose
is 50' or shorter the 1/4" still worked fine in the automotive business
that I was in for 20+ years. The 1/4" hose was mainly used for air
drills, impact wrenches, air ratchets, zip guns, and in the body shop
for painting and sanding. Now the Coats tire machine did have a 3/8"
supply line as the bead expander would release enough air to inflate a a
tire in a split second. That machine however did have it's own air
reservoir, not even the 3/8" supply could keep it filled for more than
several seconds if the bead expander was in continuous use on the
difficult tires.


Leon, apparently your experience has been vastly different than my
own...I do also hold great respect for your knowledge and contributions
to the forums here and spend considerable time gleaning little tidbits
of useful information.

Although having been a lurker for many years, rarely a contributer,
once-in-a-while I do poke my head up and take my chances... :-)

I run a 20gal tank w/ single head @ 125lbs max feeding about 150' of
3/4" buried & overhead lines @ 100lbs. The lines are tapped with above
ground connectors & shutoffs at various locations around the property.
In theory at least, the 3/4 lines should multiply available tank volume
and serve as medium buffer for sustained output in high demand ops.

However, I cannot push enough air through through a 1/4" line at more
than 25' to sustain a typical non HVLP paint gun for more than a few
seconds, much less most other high volume air tools. But I would agree
that in most apps, even 50ft of 1/4" line should not be an issue for any
nail shooter I have used either.

Granted though, if I stuck a vertical 60gl iron horse 240v double-head,
pushing 150lbs to a regulated 100lb main, I could solve those problems
and maybe get back to using 1/4" line as you have.

Unfortunately though, I simply do not have the room for a high capacity
rig nor can I justify the expense and wiring change enough to support
infrequent usage.

Quite a few of us here are not professionals, and don't do a lot of this
stuff for a living. The kinds of tools and equipment many of you here
use are way out of the normal range of weekend garage warriors like
myself....Festool? R U kidding me? :-)

I am not totally inexperienced, and do myself have a 12x36ft fully
equipped woodshop, minus a turning setup, that I have likely invested
about $30,000 into, for equipment, over last 4yrs, but even this is
rather atypical for an average DIY'er and still not on par with a
proshop. Literally every tool in my shop is mobile, out of necessity! :-)

Keep those tidbits coming cuz I would be lost without them...


--
Digger
Bob O'Dell

Digger wrote:


In addition to other suggestions, I would check size of airline. 1/4"
is often not large enough to deliver enough volume of air for some
brands of air tools to function properly. I typically use at least
3/8" line if the run is more than a few feet.

That's always true of high volume tools like DA's and some paint guns, but
I've never heard that to be true of an air nailer. They're a one shot tool.
I'd be more suspicious of either too low of a pressure setting, or the thing
crapping out as the tank is approaching cut in pressure level. Maybe people
have had problems with air nailers and small diameter hoses (especially if
they are firing in rapid succession), but intuitively, that would surprise
me. Other things have surprised me in the past...

--

-Mike-

"Mike Marlow" wrote in message ...

Digger wrote:


In addition to other suggestions, I would check size of airline. 1/4"
is often not large enough to deliver enough volume of air for some
brands of air tools to function properly. I typically use at least
3/8" line if the run is more than a few feet.

That's always true of high volume tools like DA's and some paint guns, but
I've never heard that to be true of an air nailer. They're a one shot
tool. I'd be more suspicious of either too low of a pressure setting, or
the thing crapping out as the tank is approaching cut in pressure level.
Maybe people have had problems with air nailers and small diameter hoses
(especially if they are firing in rapid succession), but intuitively, that
would surprise me. Other things have surprised me in the past...

Back when I was regularly using air tools (paint guns, sanders, grinders,
impact wrenches, nailers, etc.) we ran off an Ingersoll - Rand industrial
compressor that had a large tank and fast recovery rate. The compressor's
working capacity was never an issue. What was happening at the other end of
the hose was a different story. Like with dust collection, long runs with
small diameters can lead to huge drops in working pressure at the tool
end...

To set the "right" pressure for the tools we had a gauge on quick release
fittings that could be installed at the tool end of the line. We'd regulate
the pressure to that gauge rather than the gauge on the regulator on the
compressor. That allowed us to regulate the working pressure in the context
of the length and diameter of the hose. Once set the line gauge could be
removed to lighten the tool weight. We had a regulator with a gauge for the
spray gun as that often needed tinkering.

To help keep the volume up we used high pressure garden hoses for most of
the run and then a 3/8" air hose closer to the tool. This was cost effective
compared to buying large air hoses. We did this as the compressor was at a
fixed location due to it's size and 220V electric power requirement but we
might be working outside 200+ feet from the garage.

John

John Grossbohlin wrote:


Back when I was regularly using air tools (paint guns, sanders,
grinders, impact wrenches, nailers, etc.) we ran off an Ingersoll -
Rand industrial compressor that had a large tank and fast recovery
rate. The compressor's working capacity was never an issue. What was
happening at the other end of the hose was a different story. Like
with dust collection, long runs with small diameters can lead to huge
drops in working pressure at the tool end...

To set the "right" pressure for the tools we had a gauge on quick
release fittings that could be installed at the tool end of the line.
We'd regulate the pressure to that gauge rather than the gauge on the
regulator on the compressor. That allowed us to regulate the working
pressure in the context of the length and diameter of the hose. Once
set the line gauge could be removed to lighten the tool weight. We
had a regulator with a gauge for the spray gun as that often needed
tinkering.

You are correct - long runs do result in friction loss. I don't even think
about that because I keep regulators attached to most of my air tools - most
certainly those that are pressure sensitive. All of my paint guns, and some
others. My DA's, and my air nailer don't have them, nor do my air grinders
and some other tools, but those don't need that kind of attention to
pressure. My air nailer is always running off of a known length of 3/8"
hose to a coil of 1/4", or if close enough, simply off of the 1/4" directly
to the compressor(s). So - pressure drops over long runs never becomes an
issue for me, and I forget to think about that in conversations like this.
Good catch John.

--

-Mike-

"Mike Marlow" wrote in message ...

pressure. My air nailer is always running off of a known length of 3/8"
hose to a coil of 1/4", or if close enough, simply off of the 1/4" directly
to the compressor(s). So - pressure drops over long runs never becomes an
issue for me, and I forget to think about that in conversations like this.
Good catch John.

Some of the job sites I've seen have had very long runs of hoses for the
nailers simply due to the nature of the work site. Big contemporary homes
with high steep pitched roofs were wrapped in hoses...

I don't recall that the OP mentioned the length of his hoses so I cannot say
if that may be his specific issue. It might be worth consideration if the
compressor's regulator says he has enough pressure but he is still having
problems.

Some tools are sensitive to lubrication also. I've got one nailer that has
to be oiled every time (day) I use it regardless of how much actual nailing
was done after the last time it was oiled or it doesn't function reliably.

John

On 2/14/2013 11:12 AM, John Grossbohlin wrote:
"Mike Marlow" wrote in message ...

Digger wrote:


In addition to other suggestions, I would check size of airline. 1/4"
is often not large enough to deliver enough volume of air for some
brands of air tools to function properly. I typically use at least
3/8" line if the run is more than a few feet.

That's always true of high volume tools like DA's and some paint guns,
but I've never heard that to be true of an air nailer. They're a one
shot tool. I'd be more suspicious of either too low of a pressure
setting, or the thing crapping out as the tank is approaching cut in
pressure level. Maybe people have had problems with air nailers and
small diameter hoses (especially if they are firing in rapid
succession), but intuitively, that would surprise me. Other things
have surprised me in the past...

Back when I was regularly using air tools (paint guns, sanders,
grinders, impact wrenches, nailers, etc.) we ran off an Ingersoll - Rand
industrial compressor that had a large tank and fast recovery rate. The
compressor's working capacity was never an issue. What was happening at
the other end of the hose was a different story. Like with dust
collection, long runs with small diameters can lead to huge drops in
working pressure at the tool end...

To set the "right" pressure for the tools we had a gauge on quick
release fittings that could be installed at the tool end of the line.
We'd regulate the pressure to that gauge rather than the gauge on the
regulator on the compressor. That allowed us to regulate the working
pressure in the context of the length and diameter of the hose. Once set
the line gauge could be removed to lighten the tool weight. We had a
regulator with a gauge for the spray gun as that often needed tinkering.

i always thought the pressure at one end of the hose has to be the same
at the other end of the hose, given a static condition. is that not correct?

To help keep the volume up we used high pressure garden hoses for most
of the run and then a 3/8" air hose closer to the tool. This was cost
effective compared to buying large air hoses. We did this as the
compressor was at a fixed location due to it's size and 220V electric
power requirement but we might be working outside 200+ feet from the
garage.

John

"chaniarts" wrote in message ...

On 2/14/2013 11:12 AM, John Grossbohlin wrote:
"Mike Marlow" wrote in message ...


To set the "right" pressure for the tools we had a gauge on quick
release fittings that could be installed at the tool end of the line.
We'd regulate the pressure to that gauge rather than the gauge on the
regulator on the compressor. That allowed us to regulate the working
pressure in the context of the length and diameter of the hose. Once set
the line gauge could be removed to lighten the tool weight. We had a
regulator with a gauge for the spray gun as that often needed tinkering.

i always thought the pressure at one end of the hose has to be the same at
the other end of the hose, given a static condition. is that not correct?

Static I would agree. In use what we found though was that a small line
cannot recover fast enough so the working pressure drops. This is due to
inadequate volume and friction in the line. Thus with a gauge at the tool
end of a long run you can watch what happens to the pressure while the tool
is working and then set the pressure higher at the compressor end to help
keep the volume and pressure up at the tool end. Larger air lines can help
with the volume and friction issues over long runs...

Air volume, pressure, friction, air turbulence in the lines, compressor
capacity, and other factors are at play and I'm sure someone here can
explain this in fluid dynamic terms. To us layman woodworkers I'd think it's
not unlike the topics of undersized piping in a dust collection system, or
comparing a dust collector to a vacuum cleaner, that have been discussed
here what seems like a few hundred times over the past 20 years. ;~)

John

On 2/15/2013 11:53 AM, chaniarts wrote:
On 2/14/2013 11:12 AM, John Grossbohlin wrote:
"Mike Marlow" wrote in message ...

Digger wrote:


In addition to other suggestions, I would check size of airline. 1/4"
is often not large enough to deliver enough volume of air for some
brands of air tools to function properly. I typically use at least
3/8" line if the run is more than a few feet.

That's always true of high volume tools like DA's and some paint guns,
but I've never heard that to be true of an air nailer. They're a one
shot tool. I'd be more suspicious of either too low of a pressure
setting, or the thing crapping out as the tank is approaching cut in
pressure level. Maybe people have had problems with air nailers and
small diameter hoses (especially if they are firing in rapid
succession), but intuitively, that would surprise me. Other things
have surprised me in the past...

Back when I was regularly using air tools (paint guns, sanders,
grinders, impact wrenches, nailers, etc.) we ran off an Ingersoll - Rand
industrial compressor that had a large tank and fast recovery rate. The
compressor's working capacity was never an issue. What was happening at
the other end of the hose was a different story. Like with dust
collection, long runs with small diameters can lead to huge drops in
working pressure at the tool end...

To set the "right" pressure for the tools we had a gauge on quick
release fittings that could be installed at the tool end of the line.
We'd regulate the pressure to that gauge rather than the gauge on the
regulator on the compressor. That allowed us to regulate the working
pressure in the context of the length and diameter of the hose. Once set
the line gauge could be removed to lighten the tool weight. We had a
regulator with a gauge for the spray gun as that often needed tinkering.

i always thought the pressure at one end of the hose has to be the same
at the other end of the hose, given a static condition. is that not
correct?

That is correct if there is no air movement. Open the end of that hose
and there is a dramatic loss of pressure it remains open and if the
supply line is not adequate to keep up with the loss. While a nail gun
opens up the end, so to speak, it is for a split second and pressure is
immediately restored, so to speak.

On Feb 14, 10:47*am, Digger wrote:

In addition to other suggestions, I would check size of airline. 1/4" is
often not large enough to deliver enough volume of air for some brands
of air tools to function properly.

Incorrect. While your compressor may not keep up, the air lines have
almost nothing to do with the supply to the gun. We shoot high volume
roofing nailers all day long with 1/4" hose and it works fine. Same
with our framing guns which depending on their task at the time, may
be running non stop.

Not convinced? No problem. Read Bernoilli's Principle (and examples
of the practical application of it) about the equalization of pressure
and you will find this scientifically proven.

Robert