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  1. First stage finished and under vacuuming! ...

    First stage finished and under vacuuming!

    https://i.ibb.co/WxPt6BM/IMG-20220108-225653.jpg

    https://i.ibb.co/jb35XMj/IMG-20220108-225749.jpg

    https://i.ibb.co/wpZJcJH/IMG-20220108-225733.jpg
    ...
  2. https://i.ibb.co/Pr4S8Z0/IMG-20211118-222559-jpg-b...

    https://i.ibb.co/Pr4S8Z0/IMG-20211118-222559-jpg-bea659b4b7ed299ca6b67498c62f027f.jpg

    https://i.ibb.co/3FHMfc9/IMG-20211120-211701-jpg-dbfb04fe5ac36b23f1ef0c2ad627585e.jpg
    ...
  3. https://i.ibb.co/BLWCdLw/IMG-20211104-234436-jpg-e...

    https://i.ibb.co/BLWCdLw/IMG-20211104-234436-jpg-e97a14b7c05eb14d8ee7fd457d9461e4.jpg

    https://i.ibb.co/hXgddj5/IMG-20211106-113148-jpg-03471f420ec6775f7a6d3db8fd13cf6b.jpg
    ...
  4. https://i.ibb.co/rdYg00H/IMG-20211030-223528-jpg-6...

    https://i.ibb.co/rdYg00H/IMG-20211030-223528-jpg-65c63aff212436301a536a051927d608.jpg

    https://i.ibb.co/gzgvZjK/IMG-20211030-230144-jpg-a72d412f22b7944b93e7983ead64c18e.jpg
    ...
  5. 2 Stage Cascade w Reciprocating Compressors

    After my first attempt decided to try a Cascade with reciprocating compressors for quiet operation.

    Will consist of:

    1st Stage

    -Tecumseh-L'unite 34cc 1.5HP Compressor

    - 3KW Condenser
  6. Replies
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    https://i.ibb.co/dBgrr3X/image-id-2543897-png-57b5...

    https://i.ibb.co/dBgrr3X/image-id-2543897-png-57b5f27895260739039dcb52bee57572.png

    https://i.ibb.co/0nTc08T/image-id-2544200-png-ed6349881d8a3511cd746261a279ae4f.png
    ...
  7. Replies
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    Some result with Cascade ...

    Some result with Cascade

    https://i.ibb.co/d0jcQw1/image-id-2554018.png

    https://i.ibb.co/1XjH8Ld/image-id-2542172.png
    ...
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    11,307

    Finally after 4 months of building the Cascade...

    Finally after 4 months of building the Cascade its time for some numbers!

    https://i.ibb.co/KKqB30y/IMG-20210714-215004.jpg

    https://i.ibb.co/G5ZKXz4/IMG-20210714-220836.jpg
  9. Replies
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    11,307

    First stage up and running, fully insulated! ...

    First stage up and running, fully insulated!

    https://i.ibb.co/PtYNC3c/IMG-20210703-181516.jpg

    https://i.ibb.co/b15Z8xh/IMG-20210703-181718.jpg
  10. Replies
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    11,307

    Time has come, only filling the 2 stages with...

    Time has come, only filling the 2 stages with r404a and r1150 remains

    https://i.ibb.co/q56dZy7/IMG-20210619-074612.jpg

    https://i.ibb.co/y5GnjFT/IMG-20210628-000121.jpg
    ...
  11. Replies
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    Thanks, its a really compact cascade, a bit...

    Thanks, its a really compact cascade, a bit tricky to fit them all in 50x70cm base but I am used to work in limited space :) ( human abdomen )
  12. Replies
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    11,307

    Protective frame ...

    Protective frame

    https://i.ibb.co/qFxRrZ6/IMG-20210428-180526.jpg

    https://i.ibb.co/5x5MYwG/IMG-20210428-180623.jpg
  13. Replies
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    11,307

    First stage is ready ...

    First stage is ready

    https://i.ibb.co/wCVWYmr/IMG-20210417-231449.jpg

    https://i.ibb.co/bXbDCpp/IMG-20210417-231948.jpg

    Also progress to 2nd stage, waiting for evaporator.
    ...
  14. Replies
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    Thanks, I would like to have -115C idle/-100C...

    Thanks, I would like to have -115C idle/-100C Load @ 350-400w.

    A little more progress

    https://i.ibb.co/6n05g1h/IMG-20210408-190517.jpg

    https://i.ibb.co/5WndPwS/IMG-20210408-190556.jpg

    And...
  15. Replies
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    11,307

    Some electric components arrived ...

    Some electric components arrived

    https://i.ibb.co/dLbBGxm/IMG-20210405-200158.jpg

    https://i.ibb.co/C1qn6fs/IMG-20210405-200131.jpg

    https://i.ibb.co/KxNPjtL/IMG-20210405-213952.jpg
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    Some progress ...

    Some progress

    https://i.ibb.co/0Z7ns2q/IMG-20210404-222837.jpg

    https://i.ibb.co/mS4xRSQ/IMG-20210404-222925.jpg
  17. Replies
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    11,307

    2-Stage Cascade Project

    Its time for the next step in Phase Change cooling, so decided to build a 2 Stage Cascade.

    It will consist of:

    1st Stage

    - Mitsubishi RE313VDMT Rotary 18k BTU/31.3cc
    - 3KW Condenser...
  18. Replies
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    6,305

    Its a long time I finished it, but had no time...

    Its a long time I finished it, but had no time testing it in action.

    At slightly in vacuum it goes down to -28 without fan working, I have to tune it at load...
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    Tiny Single Stage for Chipset

    I recently revisited s775 and decided to build a tiny chipset SS

    I used:

    1/10hp 2.95cm? r134 Compressor
    Condenser 21x17cm
    Base plate 27x24cm
    3m 0.8mm captube
    1/4"discharge line...
  20. Replies
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    37,454

    Some aesthetic improvements! All up and...

    Some aesthetic improvements!

    All up and running

    https://i.ibb.co/cymvzKL/IMG-20201213-220252.jpg

    https://i.ibb.co/PZbG9Sq/IMG-20201213-220411.jpg
    ...
  21. Replies
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    R404a/r507 should used in an SS. For -50C @...

    R404a/r507 should used in an SS.

    For -50C @ load you have to use a Rotary compressor as in the SS in first page
  22. Replies
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    Thanks! Its almost finished, only charge with...

    Thanks!

    Its almost finished, only charge with r404a left.

    https://i.ibb.co/7Gnkfgs/IMG-20201209-160443.jpg

    https://i.ibb.co/M5P6ZNT/IMG-20201209-160404.jpg
    ...
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    Adding gauges to the "small" SS ...

    Adding gauges to the "small" SS

    https://i.ibb.co/JdGYqJH/IMG-20201207-220542.jpg

    https://i.ibb.co/vmTDGsx/IMG-20201207-220507.jpg
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    Its idle temperature

    Its idle temperature
  25. Replies
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    Some improvements, I add a 220v fan regulator due...

    Some improvements, I add a 220v fan regulator due to low ambient temp.

    https://i.ibb.co/GptfqrW/IMG-20201128-230220.jpg

    https://i.ibb.co/ftM9tCZ/IMG-20201128-230435.jpg
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