X

    Subscribe to New Ads!

    Receive weekly ads in your inbox!



Results 1 to 12 of 12

Thread: Sub 100$ single stage

  1. #1
    Registered User
    Join Date
    Apr 2020
    Posts
    9

    Sub 100$ single stage

    I just want to start this by saying this probably won't be safe and definitely will not be a good unit. With that out of the way, let's get started. The united will be based on an old ac unit I got from a thrift store for 15$. It has a 1/3 hp rotary compressor and a decent sized condenser that I will be reusing for this build. Here is where the unit gets a little ghetto, the evaporator will be made out of a 2 inch offcut of 110 copper with a 2-inch diameter and the suction line is going to be made out of a manifold hose connected to a Schrader valve without the stem in it. I am going to use a cheap filter dryer off eBay and 0.031 cap tube. For gas, I am going to be using standard propane that will be run through a filter dryer as it is charged so it hopefully will get some of the moisture out

  2. #2
    Xtreme Enthusiast
    Join Date
    Jun 2005
    Posts
    581
    sound like not a bad unit . keep us posted with photos and good luck
    2600K working in 4.8 GHZ so far

    2600k @(4600 Ghz) 1.42v : (under water)
    Asus B2 mobo
    4 GiG DDR 2400 MHZ
    GTX 570 @ 1.063v ( 910/1820/2001 Mhz) .(under water).
    1020 W PSU

    Hobie's : Overclocking .... Overclocking .... Overclocking

  3. #3
    Registered User
    Join Date
    Apr 2020
    Posts
    9
    I am hoping the unit will do at least -20C at 50W just so I can use it to cool 775 north bridges but I do not expect the unit to last long.

  4. #4
    Xtreme Enthusiast
    Join Date
    Jun 2005
    Posts
    581
    what compressor ? any photo of condenser
    2600K working in 4.8 GHZ so far

    2600k @(4600 Ghz) 1.42v : (under water)
    Asus B2 mobo
    4 GiG DDR 2400 MHZ
    GTX 570 @ 1.063v ( 910/1820/2001 Mhz) .(under water).
    1020 W PSU

    Hobie's : Overclocking .... Overclocking .... Overclocking

  5. #5
    Registered User
    Join Date
    Apr 2020
    Posts
    9
    Quote Originally Posted by makaka View Post
    what compressor ? any photo of condenser
    I am not currently at my place due to school being closed from covid but I will get pics when I get a chance to go back.

  6. #6
    Registered User
    Join Date
    Apr 2020
    Posts
    9
    All the parts are on their way and should be here within a few weeks. Evap is going to be a normal heatsink that is stripped of all its coating and I am going to be making a housing for it in the coming weeks out of scrap 1/4 inch acrylic.

  7. #7
    Xtreme Member
    Join Date
    Aug 2002
    Location
    Washington
    Posts
    364
    That should work just fine, however the schrader valve will be a big restriction even without the core, and so will the small refrigeration hose. If you are doing it that way just to have a flexible hose then standard propane 3/8 flare rubber hose works good for that, so does that yellow painted flex steel that is I believe for water heaters, but you have to braze it with silver solder and a bunch of flux, but it works great. I have used it on my autocascades for years. The 3/8 rubber propane hose would be the easiest as all you would need is a braze on 3/8 flare on your compressor suction line and evaporator.

    The evaporator with acrylic is probably not a good idea however. I tried thick lexan on a Maze 3 years ago just for the fun of it and it would start leaking at low temperatures, especially when turning the system off and equalizing. Acrylic might even break from the equalized pressure and low temperatures since it's much weaker than polycarbonate. I was using a similar a/c compressor as you back then and it was getting about -50c iirc. It did look really cool however haha

  8. #8
    Xtreme Owner Charles Wirth's Avatar
    Join Date
    Jun 2002
    Location
    Las Vegas
    Posts
    12,375
    I will offer a few single stage carcasses soon for those who would like to build a custom cooler.
    Intel 9990XE @ 5.1Ghz
    ASUS Rampage VI Extreme Omega
    GTX 2080 ti Galax Hall of Fame
    64GB Galax Hall of Fame
    Intel Optane
    Platimax 1245W

    Intel 3175X
    Asus Dominus Extreme
    GRX 1080ti Galax Hall of Fame
    96GB Patriot Steel
    Intel Optane 900P RAID

  9. #9
    Registered User
    Join Date
    Apr 2020
    Posts
    9
    Quote Originally Posted by aenigma View Post
    That should work just fine, however the schrader valve will be a big restriction even without the core, and so will the small refrigeration hose. If you are doing it that way just to have a flexible hose then standard propane 3/8 flare rubber hose works good for that, so does that yellow painted flex steel that is I believe for water heaters, but you have to braze it with silver solder and a bunch of flux, but it works great. I have used it on my autocascades for years. The 3/8 rubber propane hose would be the easiest as all you would need is a braze on 3/8 flare on your compressor suction line and evaporator.

    The evaporator with acrylic is probably not a good idea however. I tried thick lexan on a Maze 3 years ago just for the fun of it and it would start leaking at low temperatures, especially when turning the system off and equalizing. Acrylic might even break from the equalized pressure and low temperatures since it's much weaker than polycarbonate. I was using a similar a/c compressor as you back then and it was getting about -50c iirc. It did look really cool however haha

    I do not expect this unit to last long it is just a fun project.

  10. #10
    silver wall jumper X
    Join Date
    Apr 2005
    Location
    Las Vegas
    Posts
    1,598
    Quote Originally Posted by Mythicaltech View Post
    I do not expect this unit to last long it is just a fun project.
    Don't see why it wouldn't last long. Just fired up a couple of my super simple single stages and was shocked to see them all still work after sitting in the garage collecting dust for a decade...

  11. #11
    Registered User
    Join Date
    Apr 2020
    Posts
    9
    Quote Originally Posted by mike View Post
    Don't see why it wouldn't last long. Just fired up a couple of my super simple single stages and was shocked to see them all still work after sitting in the garage collecting dust for a decade...
    I do not expect the suction line to last very long.

  12. #12
    silver wall jumper X
    Join Date
    Apr 2005
    Location
    Las Vegas
    Posts
    1,598
    Gotcha on the suction line...just now noticed the 775 Northbridge cooling plan...hmm... someone going for big numbers...looking forward to see what you are up to!

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •