Finally got a compressor

[Forum Admin]

I finally got a refrigerator compressor and love it to pieces! It was free and gets my gun to 400 psi in 50 seconds. No more pumping! 

[Forum Admin]

I am getting ready to head to lowes and get the fittings I need to add a CO2 tank, essentially making a mini high pressure version of a air compressor. My plan is to use a high pressure grease gun hose between the tank and compressor, add a gauge and bleed valve, before finally attaching the quick disconnect. This will reduce fill times by quite a bit since the CO2 cylinder has 6x the volume of my airgun. It would be awesome if I could make or buy a pressure switch that cut out around 550 psi, or whatever my compressor can put out. For now, I just installed a regular light switch to turn the compressor on and off. I havent done the math on it yet, but I imagine twin tanks filled to 550 psi could give me a few shots that are 300+ psi for taking the airgun out hunting. So far, I have less than $10 invested in my compressor. 

[Pellethuntr]

sounds pretty cool...pics???

[BoyntonStu]

I am getting ready to head to lowes and get the fittings I need to add a CO2 tank, essentially making a mini high pressure version of a air compressor. My plan is to use a high pressure grease gun hose between the tank and compressor, add a gauge and bleed valve, before finally attaching the quick disconnect. This will reduce fill times by quite a bit since the CO2 cylinder has 6x the volume of my airgun. It would be awesome if I could make or buy a pressure switch that cut out around 550 psi, or whatever my compressor can put out. For now, I just installed a regular light switch to turn the compressor on and off. I havent done the math on it yet, but I imagine twin tanks filled to 550 psi could give me a few shots that are 300+ psi for taking the airgun out hunting. So far, I have less than $10 invested in my compressor. 

I placed the on/off switch on the hose next to the quick disconnect  (no tank).

This is my sequence.

Connect the quick disconnect.

Turn on the compressor.

Close the bleed valve.

Pressurize the chamber while watching the gauge.

Close the chamber valve.

Turn off the compressor.

Hold a bunched-up rag hard up against the relief ball valve as a sound muffler, and open the relief valve.

Disconnect the quick release.

Insert the barrel into the T breech.

Quick, silent, no reaching, and safe.

[Forum Admin]

I finally got most of the fittings I needed to get the compressor setup. I am waiting for a new pressure gauge to come in, so I am using my shock pump gauge for now. This limits me to 400 psi, but I'm just glad to be free from pumping.   Tank pressure drops ~50 psi between each fill. It will be nice when the gauge comes in so I can get more shots at 400 psi. Anyhow, here's a picture of it waiting to be finished:

***EDIT*** Incorrect info, it takes the same amount of time to fill the whole system to 400 psi as it does with just the airgun alone. 

[Pellethuntr]

cool setup

[BoyntonStu]

FWIW

The thread is about cascading pumps, etc.


just conected the inlet into my normal compressor when my frige one got to 1000 i slowleay fed it with air the pressur started to rise it got to 100 bar then i put more it got up to about 1800psi then ther was a small pop from inside the fridg pump and the pressur droped the morot still runs fine i suspect its blown a gas git or something the clim from 1000 to 1800 was very quick i was inputing ait at about 50psi the motor did change note like it was under more load when i started im putting air now ime goin to have to cut it open
i will take pics of the insided aswell

http://www.spudfiles.com/forums/home-made-compressor-i-have-reached-1800psi-t16807,start,30.html

[Forum Admin]

very interesting, I've been looking the housing over, it seems strong, as strong as any air tank for a compressor. That basically means I wouldnt pressurize it beyond 150 psi to 200 psi, and that only due to the small size. I sure would like to get 750 to 850 psi out of it, once my gauge comes in, I'll experiment with increasing its input pressure. My other air compressor puts out a high volume of up to 250 psi, by adjusting a popoff, I should be able to keep the pressure down to safer levels.

[Forum Admin]

Using scrap wood leftover from home improvement projects, I got everything put together in a very compact form. I can hardly wait until my new pressure gauge gets here! Here's the photo:

[BoyntonStu]

Using scrap wood leftover from home improvement projects, I got everything put together in a very compact form. I can hardly wait until my new pressure gauge gets here! Here's the photo:

What is the device that precedes the quick disconnect?

is it a valve?

(I recommend using a valve.)

How many balls inside the quick disconnect?

Mine has 6.

[Forum Admin]

Yeah thats a valve much better with one than without. I think the QD has four balls

[Forum Admin]

I finally was able to get the compression fitting I needed for linking my regular shop compressor to my refrigerator compressor. My first test is not to see what kind of pressure I can achieve, but rather how much faster I fill a 20 oz CO2 cylinder to 400 psi. The refrigerator compressor by itself takes 4 min 24 sec. Using my shop compressor feeding its input 100 psi, the time is only 1 min 30 sec. That is a significant time savings, almost 3 minutes saved.

[BoyntonStu]

I finally was able to get the compression fitting I needed for linking my regular shop compressor to my refrigerator compressor. My first test is not to see what kind of pressure I can achieve, but rather how much faster I fill a 20 oz CO2 cylinder to 400 psi. The refrigerator compressor by itself takes 4 min 24 sec. Using my shop compressor feeding its input 100 psi, the time is only 1 min 30 sec. That is a significant time savings, almost 3 minutes saved.

Great data!

Thanks.

[Forum Admin]

If you havent seen it already, I have a video of my compressor being fed a diet of 60 psi. Here it is: http://www.youtube.com/watch?v=nR4lybUETqI