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AFV Painting & Weathering
Answers to questions about the right paint scheme or tips for the right effect.
Needing help with compressors
flyboy_fx
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North Carolina, United States
Joined: August 28, 2011
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Posted: Tuesday, February 07, 2012 - 10:38 AM UTC
Well, looking into getting a bigger compressor with airtank that can deliver up to 100psi (need the extra PSI for other things), but I don't know what hardware I'll need other than adapters. What kind of things do I need, moisture trap, PSI regulator, ect. Thanks for any help you can offer!!!

Alex
pseudorealityx
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Georgia, United States
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Posted: Tuesday, February 07, 2012 - 10:54 AM UTC
I would suggest a regulator with an integral moisture trap. And potentially an inline moisture trap as well. Most if not all the airbrush companies will make an inline trap for their hoses. Any old regulator will work. I got one from Harbor Freight that works just fine. I also bought a set of quick disconnects. That way, I can attach the regulator when I'm using my airbrush, and pull it off and connect my regular hose if I want to use any of my other air tools... impact wrench, grinder, etc.
didgeboy
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Washington, United States
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Posted: Tuesday, February 07, 2012 - 11:00 AM UTC
I second the moisture trap and especially the quick connects, makes life easy when needing to switch colours or equipment quickly.
flyboy_fx
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North Carolina, United States
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Posted: Tuesday, February 07, 2012 - 11:09 AM UTC
Awesome, now what about the compressor itself? I'm used to tank-less hobby ones. I hear hardware store ones will work just as great. Plus the benefit of having a tank to run off of so you don't have to listen to it run all the time.

What size tank do you think will be good? 5 gal maybe?
Also, anyone have any compressors they love? Not something that will go out on me after a year. I guess it's hit or miss though, I usually tend to miss. Story of my life.
SgtRam
Staff MemberContributing Writer
AEROSCALE
#197
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Ontario, Canada
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Posted: Tuesday, February 07, 2012 - 11:52 AM UTC
I strongly recommend a tank, and since you are looking to use it for bigger uses, I would recommend a 5 gal tank. A tank provides a much better constant air pressure then just a compressor.

flyboy_fx
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North Carolina, United States
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Posted: Tuesday, February 07, 2012 - 12:10 PM UTC
Maybe something like this? http://www.sears.com/shc/s/p_10153_12605_00915215000P?prdNo=9#reviewsWrap

Seems like it's not too loud at 82db. Only has a 4 gal though... Looking for something with good reviews.
pseudorealityx
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Georgia, United States
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Posted: Tuesday, February 07, 2012 - 12:48 PM UTC
What other things are you trying to use the compressed air for? And how much room do you have available? Something like grinding is going to go through a lot of air in a hurry. An air ratchet doesn't use much air at all.

Any 'garage' compressor is going to be loud if you're used to a hobby tankless type compressor. It's not something you want to use close to your significant other or if you share walls with a neighbor at all hours of the night.

I have an 8 gallon tank. If I'm doing a lot of airbrushing, I can easily empty the tank in a single sitting. That means the compressor has the cycle back on, I have to finish at another time, or I have to switch over to my hobby compressor.
SSGToms
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Posted: Tuesday, February 07, 2012 - 12:54 PM UTC
Alex,
You're looking in the right direction. You'll get a lot more use out of a tank compressor like this than a hobby compressor. I have a 3 gallon pancake compressor with a hobby regulator/moisture trap and a quick connect from Harbor Freight. I paid $39.99 for it with a coupon. Once it fills I shut it off and can shoot a full cup of paint off the tank pressure alone. Certainly any of the Craftsman compressors will fit the bill and last for years. Anything around a 5 gallon tank is good, you want capacity AND portability. You need a regulator calibrated for airbrushes, 0 - 60 PSI, with a moisture trap, to add to it.
flyboy_fx
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North Carolina, United States
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Posted: Tuesday, February 07, 2012 - 01:07 PM UTC
So, if it's a 130PSI tank, I can't add a 0-60PSI regulator on it, right? It would have to be a larger regulator then a smaller regulator?

THe main other use is for pressure casting resin. It needs to be able to go up to 60 PSI with no problems. I figure 100 PSI is a good starting point.
pseudorealityx
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Georgia, United States
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Posted: Tuesday, February 07, 2012 - 02:35 PM UTC
A 0-60 psi regulator is fine on a compressor that can go to 100 psi. When airbrushing, you'll want to be down in the 5-30 psig range, hence getting a 0-60 psi regulator just so you can see the smaller increments. On a 0-120 psi or higher gauge, very small changes will make larger effects on the pressure. Either will work.

You should install a pressure gauge on your casting pressure vessel, and just run the compressor wide open until you get up to your desired pressure, then cut off the compressor. No need for a regulator then.

Here's the compressor I have:

http://www.harborfreight.com/2-hp-8-gallon-125-psi-portable-air-compressor-67501.html




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