http://cgi.ebay.com/ws/eBayISAPI.dll...MESE:IT&ih=005

Steve Smith wrote:
http://cgi.ebay.com/ws/eBayISAPI.dll...MESE:IT&ih=005

That would make a pretty impressive air hammer. However I'm not sure that
my compressor would keep up with it, and I've got a 15hp Quincy!

On 2008-06-09, Todd Rich wrote:
Steve Smith wrote:
http://cgi.ebay.com/ws/eBayISAPI.dll...MESE:IT&ih=005

That would make a pretty impressive air hammer. However I'm not sure that
my compressor would keep up with it, and I've got a 15hp Quincy!

That depends on the number of impacts per second, right? So you could
make it strike less often?
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Ignoramus25756 wrote:
On 2008-06-09, Todd Rich wrote:
Steve Smith wrote:
http://cgi.ebay.com/ws/eBayISAPI.dll...MESE:IT&ih=005

That would make a pretty impressive air hammer. However I'm not sure that
my compressor would keep up with it, and I've got a 15hp Quincy!

That depends on the number of impacts per second, right? So you could
make it strike less often?

Yep, but a 2" x 10 stroke air cylinder takes about 20-25 CFM at 100psi to
run at a reasonable speed (120-180 bmp) using the Kinyon plans. Slow it
down too much and you are losing your heat before you get a lot of work
done. It might make a really decent press though.
Todd

On Mon, 09 Jun 2008 08:58:53 -0500, Ignoramus25756
wrote:

On 2008-06-09, Todd Rich wrote:
Steve Smith wrote:
http://cgi.ebay.com/ws/eBayISAPI.dll...MESE:IT&ih=005

That would make a pretty impressive air hammer. However I'm not sure that
my compressor would keep up with it, and I've got a 15hp Quincy!

That depends on the number of impacts per second, right? So you could
make it strike less often?
My Gardner-Denver would give about four strokes per minute.
Gerry :-)}
London, Canada

Todd Rich wrote:
Steve Smith wrote:
http://cgi.ebay.com/ws/eBayISAPI.dll...MESE:IT&ih=005

That would make a pretty impressive air hammer. However I'm not sure that
my compressor would keep up with it, and I've got a 15hp Quincy!

Actually, that was my original plan, although not with an air
compressor. Another type of air hammer has one cylinder driven by a
motor. The air from the first cylinder (two way) is sent to another
cylinder, which has the hammer ram mounted on it. The ram always moves
at the same rate as set by the motor. By adjusting how far the valving
between cylinders is open, you control how long the stroke is. A very
nice way to do an air hammer (referred to as 'self-contained', i.e. no
external compressor).

After about ten years of lugging that cylinder around, reality set in. I
bought a commercial self contained air hammer, which works very nicely.

Brought to you by the same project, I also have a 10HP 3 phase motor I'd
like to find a home for.

Steve

Steve Smith wrote:
Todd Rich wrote:
Steve Smith wrote:
http://cgi.ebay.com/ws/eBayISAPI.dll...MESE:IT&ih=005

That would make a pretty impressive air hammer. However I'm not sure that
my compressor would keep up with it, and I've got a 15hp Quincy!

Actually, that was my original plan, although not with an air
compressor. Another type of air hammer has one cylinder driven by a
motor. The air from the first cylinder (two way) is sent to another
cylinder, which has the hammer ram mounted on it. The ram always moves
at the same rate as set by the motor. By adjusting how far the valving
between cylinders is open, you control how long the stroke is. A very
nice way to do an air hammer (referred to as 'self-contained', i.e. no
external compressor).

Yep, like the Nazel air hammer. I know there are plans out there for this
style of hammer, but i haven't read them. I did see this style of
homebuilt hammer demonstrated at the ABANA 2K conference.

After about ten years of lugging that cylinder around, reality set in. I
bought a commercial self contained air hammer, which works very nicely.

Brought to you by the same project, I also have a 10HP 3 phase motor I'd
like to find a home for.

Steve

Yeah, I've had most of my stuff sitting around since last fall, so I'm
trying to get mine done by the end of this month. I'm doing pretty good
so far. However, I'm hoping about 5 years down the road to be able to
afford a nice self contained hammer myself. Either a used Nazel 2B or 3B,
or maybe a Striker brand clone.
Todd

Btw, I remember you from back when you were in Colorado. I think I bought
a motor starter from you about the time you moved. I was in Idaho then.

On Tue, 10 Jun 2008 08:32:20 -0400, Steve Smith
wrote:

Todd Rich wrote:
Steve Smith wrote:
http://cgi.ebay.com/ws/eBayISAPI.dll...MESE:IT&ih=005

That would make a pretty impressive air hammer. However I'm not sure that
my compressor would keep up with it, and I've got a 15hp Quincy!

Actually, that was my original plan, although not with an air
compressor. Another type of air hammer has one cylinder driven by a
motor. The air from the first cylinder (two way) is sent to another
cylinder, which has the hammer ram mounted on it. The ram always moves
at the same rate as set by the motor. By adjusting how far the valving
between cylinders is open, you control how long the stroke is. A very
nice way to do an air hammer (referred to as 'self-contained', i.e. no
external compressor).

After about ten years of lugging that cylinder around, reality set in. I
bought a commercial self contained air hammer, which works very nicely.

Brought to you by the same project, I also have a 10HP 3 phase motor I'd
like to find a home for.

Steve


turn it into a rotory phase converter. 10hp is a good size.

Gunner

at yoyodyne they were all veterans of the psychic wars
exiled from the eighth dimension where the winds of limbo roar"
* * * * * * *mariposa rand mair theal

Todd Rich wrote:

Steve Smith wrote:
http://cgi.ebay.com/ws/eBayISAPI.dll...MESE:IT&ih=005

That would make a pretty impressive air hammer. However I'm not sure that
my compressor would keep up with it, and I've got a 15hp Quincy!


Where I used to work we had a die cut press with two 12" dia air cylinders. That made
about 12 tons. Someone realized that air was holding the press up along with the upper
die. I ended up using a 4" hydraulic cylinder, some check valves, a reserve tank, counter
balance valve and pressure switch to make this thing safe. Basically an hydraulic brake
with the pressure switch making sure the hydraulics were actually counterbalancing the
load. The force the air cylinders produced greatly overmatched the holding force of the
hydraulic brake so I didn't have to use a direction valve in the circuit.

We had a number of die cut presses that had one cylinder holding the upper part of press
where a failure of a cylinder rod would hurt someone. Single point of failure. What were
the designers thinking outside of no pit needed for the press using up acting cylinders.

My first solution using a toothed rack, wedge driven by a cylinder and a switch to trip
the mess still embarases me.


Wes

Todd Rich wrote:
Steve Smith wrote:
Todd Rich wrote:
Steve Smith wrote:
http://cgi.ebay.com/ws/eBayISAPI.dll...MESE:IT&ih=005
That would make a pretty impressive air hammer. However I'm not sure that
my compressor would keep up with it, and I've got a 15hp Quincy!

Actually, that was my original plan, although not with an air
compressor. Another type of air hammer has one cylinder driven by a
motor. The air from the first cylinder (two way) is sent to another
cylinder, which has the hammer ram mounted on it. The ram always moves
at the same rate as set by the motor. By adjusting how far the valving
between cylinders is open, you control how long the stroke is. A very
nice way to do an air hammer (referred to as 'self-contained', i.e. no
external compressor).

Yep, like the Nazel air hammer. I know there are plans out there for this
style of hammer, but i haven't read them. I did see this style of
homebuilt hammer demonstrated at the ABANA 2K conference.

After about ten years of lugging that cylinder around, reality set in. I
bought a commercial self contained air hammer, which works very nicely.

Brought to you by the same project, I also have a 10HP 3 phase motor I'd
like to find a home for.

Steve

Yeah, I've had most of my stuff sitting around since last fall, so I'm
trying to get mine done by the end of this month. I'm doing pretty good
so far. However, I'm hoping about 5 years down the road to be able to
afford a nice self contained hammer myself. Either a used Nazel 2B or 3B,
or maybe a Striker brand clone.
Todd

Btw, I remember you from back when you were in Colorado. I think I bought
a motor starter from you about the time you moved. I was in Idaho then.


Sorry, your name doesn't ring a bell. I'll bet your face would, that's
how it usually works for me.

Steve

Gunner Asch wrote:
On Tue, 10 Jun 2008 08:32:20 -0400, Steve Smith
wrote:

Todd Rich wrote:
Steve Smith wrote:
http://cgi.ebay.com/ws/eBayISAPI.dll...MESE:IT&ih=005
That would make a pretty impressive air hammer. However I'm not sure that
my compressor would keep up with it, and I've got a 15hp Quincy!
Actually, that was my original plan, although not with an air
compressor. Another type of air hammer has one cylinder driven by a
motor. The air from the first cylinder (two way) is sent to another
cylinder, which has the hammer ram mounted on it. The ram always moves
at the same rate as set by the motor. By adjusting how far the valving
between cylinders is open, you control how long the stroke is. A very
nice way to do an air hammer (referred to as 'self-contained', i.e. no
external compressor).

After about ten years of lugging that cylinder around, reality set in. I
bought a commercial self contained air hammer, which works very nicely.

Brought to you by the same project, I also have a 10HP 3 phase motor I'd
like to find a home for.

Steve


turn it into a rotory phase converter. 10hp is a good size.

Gunner

at yoyodyne they were all veterans of the psychic wars
exiled from the eighth dimension where the winds of limbo roar"
mariposa rand mair theal

If I didn't have this large Danfoss VFD hanging on the wall, that would
be a fine idea.

Steve