A new A3_Switcher will be born

Discussion in 'A Work In Progress' started by georgjorge, Oct 12, 2016.

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  1. Oct 12, 2016 #1

    georgjorge

    georgjorge

    georgjorge

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    I am working on my 5"-A3_Switcher since retierement in 2008. This forum I found by chance looking through the net. At the time beeing I am working on the gear on page 114 of Kozo`s book. To get an impression here some photos:

    kessel_9.jpg

    14.jpg

    Isolierung_15.jpg

    DSCF6022_1.jpg

    DSCF6062_1.jpg

    DSCF6070_1.jpg

    DSCF6081_1.jpg

    lok_2015_01_17.jpg

    ipad_2016_10_08_reverse_lever_handle2 005.jpg

    ipad_2016_10_08_reverse_lever_handle2 006.jpg
     
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  2. Oct 12, 2016 #2

    Herbiev

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    Wow. That is looking really great and I'm looking forward to next instalment. Thanks for sharing.
     
  3. Oct 13, 2016 #3

    Ratshooter

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    So, tell us a little about your background, and how you acquired your obvious skills. Looks like that you have spent some time in the hobby, if not in the machinist's trade!

    Regards, TC
     
  4. Oct 13, 2016 #4

    georgjorge

    georgjorge

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    Hello,
    I am a communication engineer. When I retired, I built up a mechanical workshop and started to learn how to build mecanical parts. The Pennsylvania A3 Switcher book by Kozo Hiraoko is my guide line for learning. This guy made a fantastic tutorial on mecanics.
    The reason is, that I promised to my children to build a live steam garden locomotive, years ago. Now, my children are grown up so I will fullfill my promise to my grandchildren.
    Last year, I realised, that my skills milling complicated parts are still limited. Therefore, I converted my Super X3 mill into a CNC-version (see the picture). Now it is easy to make e.g. the expansion link or trunnion plate, etc.
    You can see a cube with 3 knobs (well, you see 2 only, the other hidden). With this knobs I am able to control the mill manually. There are no other handles and I don`t need them. The mill can be controlled more accurate than by handles, in my view.
    The only part, I didn`d make is the boiler. The boiler is made out of stainless steel by a work shop. Because of the size (5") it is out out my skills and the neccessary welding tools.

    Ok, that`s it for today.

    Saludos from Old Germany
    Jorge

    ipad_2016_01_13 030r.jpg

    ipad_2015_12_30 029r.jpg

    cnc_frontplaatte_2015_12_13 008r.jpg

    ipad_2016_01_13 001.jpg

    ipad_2016_09_19 004r.jpg

    ipad_2016_09_16_ 016.jpg

    ipad_2016_09_16_ 023.jpg

    ipad_2016_09_22_A3_Schwinge_Schwingenstange 011r.jpg

    ipad_2016_09_22_A3_Schwinge_Schwingenstange 015r.jpg
     
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  5. Oct 20, 2016 #5

    georgjorge

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    Hello,

    some more photos about the reverse shaft and the reach rod. Some pins are provisionally replaced by screws.

    The eccentric rod shall be determined on the actual assembly for correct valve gear movement. Therefore you see an adjustable dummy eccentric rod in the valve gear.

    Saludos

    Jorge

    ipad_2016_10_20_ 010r.jpg

    ipad_2016_10_20_ 011r.jpg

    ipad_2016_10_20_ 012r.jpg

    ipad_2016_10_20_ 013r.jpg

    ipad_2016_10_20_II_ 001r.jpg

    ipad_2016_10_20_II_ 002r.jpg

    ipad_2016_10_20_II_ 003r.jpg
     
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  6. Oct 21, 2016 #6

    dalem9

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    Amazing work ! Very nice !!
     
  7. Oct 21, 2016 #7

    kvom

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    Looks pretty close to chassis on air. Steam chest covers and timing. :cool:
     
  8. Jul 16, 2017 #8

    georgjorge

    georgjorge

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    In the meantime I am able to test the gear on air. Here some pictures of the setup:

    A3_Switcher_1r.jpg

    A3_Switcher_2r.jpg .

    A video you will find on YouTube:
    [SIZE=+1][ame]https://www.youtube.com/watch?v=nRUCbk3xNEg[/ame]

    Enjoy my test.
    Saludos
    Jorge

    [/SIZE]
     
  9. Jul 16, 2017 #9

    SilverSanJuan

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    Beautiful work, Jorge! :thumbup:
     
  10. Jul 18, 2017 #10

    ShopShoe

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    Very Nice. I also like your CNC conversion: To me, the "Box with Handles" seems more intuitive than the typical pendant.

    I'd like to see some more pictures of your shop.

    --ShopShoe
     
  11. Jul 19, 2017 #11

    georgjorge

    georgjorge

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    Thanks for your comments. Unfortunately, I don`t have any pictures of my mechanical workshop. It is nothing breath taking, it is a small cellar room 2,4m x 4,4m. Big enough to house another lathe, drilling machine and varius grinders.

    Saludos

    Jorge
     
  12. Jul 19, 2017 #12

    georgjorge

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    Now, I will start with the hand pump for the tender and later the automatic pump driven by an axel.
    The following pictures are:
    - raw material milled to the necessary sizes.
    - drilling jig
    - pump parts put together before soldering
    - soldering station
    - main body soldered
    - grinding drilling bit
    - boring valve seat
    - hand pump body soldered and all boreholes
    - fabricating suction valve seat
    - suction valve seat with screen

    IMG_0034.jpg

    IMG_0047.jpg

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    IMG_0073.jpg

    IMG_0076.jpg

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    IMG_0089.jpg

    IMG_0833.jpg

    IMG_0835.jpg
     
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  13. Jul 19, 2017 #13

    georgjorge

    georgjorge

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    All parts of the hand pump are fabricated.

    All parts are put together:

    Final installation into the tender:


    Could anybody give an idea how to mix text and pictures here in the forum. There is a list of attached files, but I don`t know how to insert describstions inbetween?

    Saludos

    Jorge

    IMG_0837.jpg

    IMG_0840.jpg

    IMG_0841.jpg

    IMG_0846.jpg

    IMG_0845.jpg
     
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  14. Jul 20, 2017 #14

    Cogsy

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  15. Nov 4, 2019 #15

    georgjorge

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  16. Nov 4, 2019 #16

    georgjorge

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    Hello,

    in the meantime I succeeded to almost finish my project. Here some pictures:
    IMG_3739r.jpg IMG_3740r.jpg
    IMG_3743r.jpg IMG_3744r.jpg
    The last step is underway to install a ceramic gas burner. For this I need some investigation how to build one.
    And here the whole train:

    IMG_3748r.jpg
     
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  17. Nov 4, 2019 #17

    Sparticusrye

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    That's a very good looking locomotive.
     
  18. Nov 4, 2019 #18

    bobden72

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    Very nice locomotive.
     
  19. Nov 6, 2019 #19

    peter2uat

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    found a round ceramic burner for a 3" boiler - the nozzle has something between 0.4 and 0.7mm diameter, just the size a propane kitchen stove would use (or a 3D-printer.... :)
    and another one I had forgotten (kudos to Ernest Glaser) plus a gas regulator which might come in handy
     

    Attached Files:

    Last edited: Nov 6, 2019
  20. Nov 6, 2019 #20

    georgjorge

    georgjorge

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    Hi Peter,
    thank you for the information about building a ceramic burner. This will definitly help me. As gas tank I am using a comercially offered one for camping usage. It is build in the first wagon for the operator:

    IMG_3442r.jpg

    At the time beeing I am constructing a track in my garden. Here is my template to elecro-weld the rails:
    IMG_3776r.jpg
    And here, how I made the bended tracks:

    IMG_3784R.jpg

    The switch is made in a similar way:

    IMG_4138r.jpg

    The switch heart was done on my CNC mill:

    IMG_4231r.jpg

    IMG_4194r.jpg

    To change the direction was fabricated in a very simple way to keep it simple:
    IMG_4192r.jpg

    Here the complete switch unpainted:

    IMG_4191r.jpg
    That´s all for today.

    Saludos


    Georgjorge
     

    Attached Files:

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