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My attempt to make a better hose coupler

JOE.G

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I mean I like how easy they seem to work, But I honestly have never really had any issue with the Milton stuff and even the cheaper stuff except for how long they last which with the cheap stuff isnt long. SO I think in your case Price may be a issue.
 
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Leveleer

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Originally Posted by Leveleer View Post
I'm sure i could make them last for the length of the warranty.
Thanks
I think if you want a legitimate project you should try a little harder than that.
__________________
Why Farm Half When You Can Farmall?

I think if you want a legitimate project you should try a little harder than that.

I'm not sure where that quote was from but if it was me there was probably a wink emoji afterwards. ;-)
 
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Leveleer

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I mean I like how easy they seem to work, But I honestly have never really had any issue with the Milton stuff and even the cheaper stuff except for how long they last which with the cheap stuff isnt long. SO I think in your case Price may be a issue.

I wouldn't attempt to compete with the cheap stuff.
I have better things to do, believe me.
 
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Leveleer

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Sounds good.

Thanks.

Hopefully we can get a prototype of my new miniature push to connect coupler finished this week. My 70th birthday is Friday and a successful test of this after only starting to think about on Wednesday would be an awesome present.
All the parts have to be made on our Haas ST10Y CNC prototype machine and it is slow.
 
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Leveleer

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Slow and HAAS are two words not often uttered in the same sentence.

By "slow", I am referring to the production rate not the speed that the slides move.
It takes entirely too long to switch between spindle mode and C axis mode.
I started complaining about this with the manufacturers back in the late 80s.
For what it's worth, I designed a production CNC machine over 20 years ago that switched modes instantly.
 

FSrepair&fabrication

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I like this idea, do you plan to make one for 1/2 hose? I have always said that the 1/2 couplers for the air guns are a pain to connect and go flying when disconected at 175 psi. The ones with the push button release are nice but after a few weeks theyre already leaking air around the button. If you start producing these put me on the list ill buy one of each size and put em to the test
 
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Leveleer

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I like this idea, do you plan to make one for 1/2 hose? I have always said that the 1/2 couplers for the air guns are a pain to connect and go flying when disconected at 175 psi. The ones with the push button release are nice but after a few weeks theyre already leaking air around the button. If you start producing these put me on the list ill buy one of each size and put em to the test

I was asked about this before and my answer was:
I can make a superior 1/2" coupler but I wouldn't want to be forced to make it compatible with what I consider a inferior plug design (industrial interchange standard).
If I was given the freedom to design both then I would be more likely to do it.
 

FSrepair&fabrication

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I would not be afraid to convert the female ends as well if the improved design was worth the change. Hell, that would be a good selling point - a redesigned hd air coupler. Sure some people will be stuck in their old ways and insist that the old ones have been around forever and work just fine. Then there are people like me who are always looking for a better way to do things. Air tools have improved by leaps and bounds compared to 50 years ago yet the air coupler design has remained more or less the same.
 

R_einan

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First time browsing this thread, and I must say, the effort your couplers require and the ease of which they disconnect safely makes me very interested to try them. But to be honest, I've looked at the prices of Milton and prevost connections, and I couldn't justify spending that to purchase air fittings. I understand the costs accociated that drive the price to the level it is, but the fact remains, that's a fair amount of money to set up a whole shop air system. Money that I could easily put into more valuable projects.
 

LS6 Tommy

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Leveleer,
I just stumbled across what I think is your video "Milton V vs Prevost S1 vs Stedlin".
From what I can see, you've got a great design. Have you done any flow rate comparisons yet? I would definitely be interested in swapping out my Milton Vs with yours if you started selling them!

Subscribed!
 
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Leveleer

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Leveleer,
I just stumbled across what I think is your video "Milton V vs Prevost S1 vs Stedlin".
From what I can see, you've got a great design. Have you done any flow rate comparisons yet? I would definitely be interested in swapping out my Milton Vs with yours if you started selling them!

Subscribed!

Thanks and "yes" that is my video.
I made a few of those couplers back in December of last year and have no plans to produce that design as I have a much better design in the works.
 
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Leveleer

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While working with high flow couplers an incident occurred that caused me to lose all my hearing in my left ear with inner ear damage that now causes me severe tinnitus.
I only have partial hearing in my right ear. This was caused by disconnecting high flow air couplers without hearing protection.


Initial production of my inventions starts next month and we're really excited about it.
 

noid

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While working with high flow couplers an incident occurred that caused me to lose all my hearing in my left ear with inner ear damage that now causes me severe tinnitus.
I only have partial hearing in my right ear. This was caused by disconnecting high flow air couplers without hearing protection.


Initial production of my inventions starts next month and we're really excited about it.

I'm in for a few couplers.
 
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Leveleer

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Our first two products are tools we use every day that are not currently for sale anywhere.

They are therefore not quick disconnect couplings.

100% designed and manufactured in Duluth Minnesota.


Production of my latest quick disconnect safety coupler has been delayed due to licensing negotiations with a company you all know well.


Our first products go on sale July 2nd.
 

PT Doc

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While working with high flow couplers an incident occurred that caused me to lose all my hearing in my left ear with inner ear damage that now causes me severe tinnitus.
I only have partial hearing in my right ear. This was caused by disconnecting high flow air couplers without hearing protection.


Initial production of my inventions starts next month and we're really excited about it.

That’s exactly why couplers like the Prevost safety couplers shine. That air blast can be devastating!
 
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Leveleer

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That’s exactly why couplers like the Prevost safety couplers shine. That air blast can be devastating!

This graph shows the average sound produced when disconnecting a Milton V style plug from a Milton V style quick disconnect. Consistently over 120 decibels.
dbtest.jpg

The Prevost S1 is much better and safer but I have measured the sound when disconnecting as high as 115 db.
 

Qualitytools

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This graph shows the average sound produced when disconnecting a Milton V style plug from a Milton V style quick disconnect. Consistently over 120 decibels.
dbtest.jpg

The Prevost S1 is much better and safer but I have measured the sound when disconnecting as high as 115 db.

In the graph provided which one is presented in blue vs orange?
 

LS6 Tommy

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I'm looking forward to switching over to your couplers, too. It will be cool in the future to say "I used to get them directly from Leveleer before he made all the other couplers on the market obsolete". :thumbup:

Tommy
 

All

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I rebuilt my first compressor with "safety ball valves" I got at Grainger. The lever handled, 1/4 turn ball valves had a dump orifice in between fully open and fully shut that would evacuate the air out of the line, but not out of the tank. I put the valves between the tank manifold and the couplers to each line. Once I closed the safety ball valve, there was no pressure in the hose, because the process of closing the valve releases the pressure out of the line. If the ball valve were turned slow, the pressure would release slower and quieter.

With no pressure in the air line, there was zero noise when disengaging the coupler, and no effort to disengage the coupler.
 

sberry

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A proper designed system for shop doesn't require disconnecting charged lines. Basically the only couplers we have is at the tool end of a whip or a reel. never have to move a section of hose. My old type H barely make a peep when disconnecting.
 
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Leveleer

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A proper designed system for shop doesn't require disconnecting charged lines. Basically the only couplers we have is at the tool end of a whip or a reel. never have to move a section of hose. My old type H barely make a peep when disconnecting.

For me, a properly designed system utilizing quick disconnect compressed air couplings includes couplings and plugs designed to be quietly disconnected under pressure and that's what I have.
 

sberry

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First time browsing this thread, and I must say, the effort your couplers require and the ease of which they disconnect safely makes me very interested to try them. But to be honest, I've looked at the prices of Milton and prevost connections, and I couldn't justify spending that to purchase air fittings. I understand the costs accociated that drive the price to the level it is, but the fact remains, that's a fair amount of money to set up a whole shop air system. Money that I could easily put into more valuable projects.
I use old H. They are not easy to connect especially at 120 or 130 which is our static air pressure. They hold, they last and they don't leak. Can take them apart and flip the washer over.
I have a lot of stuff in a broad system, not GM plant big but a lot of stuff including good portable on service truck. Only rarely do I use 3/4 gun but blow a couple lines out and only minor use from it so,,, I have 1/2 on a reel on the truck and all 3/8x50 in the shop. This fitting is a little bigger but it lasts and is good for all my tools, use it to blaster etc. My blaster would not noticeably be limited with 3/8 but got a 25 ft pc of 1/2 and could use a section of it around the regs and reels in the shop but its really rare. I just aint wrenching on other peoples big trucks and equipment, am very 1/2 dependant but can do 999 or more out of 1000 that I got to get a heavy gun for.
I don't have hydrants and hot sections of hose I have to move, its super rare I need an extension. When I was a sprout used to do that, somewhat had to and saw it done that way but as I tailor, fit and tune can get away from a lot of problenms I used to have orr learn to cope.
I was a little slow with some stuff, hung hoses way before I got reels and didn't think it was such a deal but many of the guys here can afford the additional equipment.
What was the point,,,, oh,, yes, I have a fair number of couplers which is some expense. In a home garage, small shop could easily service most the air with a reel and a whip, maybe one each and cover it all. I can repair and paint a car with one hose.
In a simple system that wasn't heavily invested in tools a guy could need as little as 2 couplers, maybe a couple more (I stock some) to make additional equipment. It wouldn't cost much new or replacement, the male or the plugs are cheap.
But till the internet lots of guys make professional careers with common air fittings. I got nothing against new and improved. but there is some obstacle for me to change, the cost and the work.
 

Maui

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I'd be very interested in purchasing several of these couplers once they become available. Please let us know where we can buy them, and when.

Maui
 

American Locomotive

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By "slow", I am referring to the production rate not the speed that the slides move.
It takes entirely too long to switch between spindle mode and C axis mode.
I started complaining about this with the manufacturers back in the late 80s.
For what it's worth, I designed a production CNC machine over 20 years ago that switched modes instantly.
I'm not sure I follow what you're saying? What modern CNC lathe can't switch between traditional turning spindle and c-axis mode instantly? We have lathes here that will go from turning to milling switching the spindle mode multiple times per program.
 
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Leveleer

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I'm not sure I follow what you're saying? What modern CNC lathe can't switch between traditional turning spindle and c-axis mode instantly? We have lathes here that will go from turning to milling switching the spindle mode multiple times per program.

Haas St10Y

I bought it used because it was cheap but it gets the job done eventually.
I just bought a Tornos GT-32 CNC swiss with magazine loading 12 foot
barfeed for production.



Frank
 
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Leveleer

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I'd be very interested in purchasing several of these couplers once they become available. Please let us know where we can buy them, and when.

Maui
The coupler that I demo in the youtube videos is not going to be available any time soon. That design was primarily an experiment to see what kind of performance I could achieve with a plug of my own design.
It is incredibly easy to connect and disconnect just as shown in the video but I feel that it is un-sellable in that form since it relies on a non standard plug.
I recently designed a tiny safety coupler that works with standard plugs and will probably bring it to market in the future.


Frank
 

American Locomotive

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Haas St10Y

I bought it used because it was cheap but it gets the job done eventually.
I just bought a Tornos GT-32 CNC swiss with magazine loading 12 foot
barfeed for production.



Frank
I was going to say a Swiss machine seems about ideal for what you're trying to do. I've heard good things about Tornos. We run an army of Tsugami swiss machines at work, but their cost is a little out of reach for most smaller operations.
 
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Leveleer

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A bit off topic:

Dan Murphy formerly of REM sales tried his best to sell me some Tsugami's back when I was in Houston but failed (I bought Star SV20's instead. Now that I bought a Tornos I found out that he is now the General Manager of the Minneapolis company I bought the Tornos from. My company in Houston bought Tsugami's after I retired.
 

bob15

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This graph shows the average sound produced when disconnecting a Milton V style plug from a Milton V style quick disconnect. Consistently over 120 decibels.
The Prevost S1 is much better and safer but I have measured the sound when disconnecting as high as 115 db.

At what distance are you measuring these from? How many times to get an average? What angle was the disconnect compared to the decibel reader (perpendicular, parallel, right in front of it, etc)?
 

American Locomotive

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A bit off topic:

Dan Murphy formerly of REM sales tried his best to sell me some Tsugami's back when I was in Houston but failed (I bought Star SV20's instead. Now that I bought a Tornos I found out that he is now the General Manager of the Minneapolis company I bought the Tornos from. My company in Houston bought Tsugami's after I retired.
Our Tsugamis came from REM sales as well. They run circles around our old Stars in service support, reliability, flexibility and speed. Best decision we've made in a while was buying these machines.
 
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