Building A CNJ Camelback B-3a...

CNE1899 Feb 19, 2020

  1. CNE1899

    CNE1899 TrainBoard Member

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    Hi All,

    I haven't posted much in a while, been busy with life.
    Well I got side tracked from the 2-6-0 I was building and decided
    to build a CNJ 0-6-0 camelback for my dad's birthday present.

    I started with a Marklin 0-6-0 # 8800. I cut the first third of the
    smoke box/boiler off. Cut the back coal bin off. And put the front 1/3
    end on the back end. I formed a cover for the boiler, roof sides, and
    window openings and modified the top hatch.

    I heavily modified the chassis to accommodate the modified shell and new motor.
    I will provide images of the chassis later.

    I still have to add the fireman's overhang, pump, railings, tanks, etc..

    IMG_0001-002.jpg
    CNJ_B-3a_01.JPG
    CNJ_B-3a_02.JPG
    CNJ_B-3a_03.JPG
    CNJ_B-3a_04.JPG
    CNJ_B-3a_05.JPG
     
  2. Hardcoaler

    Hardcoaler TrainBoard Member

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    That's amazing work CNE1899! (y)
     
  3. HoboTim

    HoboTim TrainBoard Supporter

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    Excellent!!!!

    Gifted with the Scratch Building Bug!

    Can't wait to see the finished loco!

    Photos speak volumes!!!

    Tim
     
  4. rray

    rray Staff Member

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    Sweet! I love these kinds of projects. It looks like another First in Z!
     
  5. Kurt Moose

    Kurt Moose TrainBoard Member

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    This'll be cool to watch this build!(y)
     
  6. CNE1899

    CNE1899 TrainBoard Member

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    Thank you all for the kind words. This is my first time building model trains. I put aside the 2-6-0 I started because I had broken two drill bits in the boiler.
    I am still trying to figure how to salvage that one!:mad:
    Well I thought it might be informative to show you how I start the build.
    I create a layout in Illustrator using plans and or image that are scaled down to Z. I took an image from the Brass Trains site. I had to tweak it in Photoshop to get it to be more of a side shot.
    The plan from the Model Railroader book ended up being useless, but it is a great resource.
    Screen shot 2020-02-20 at 1.40.31 PM.png
     
  7. HoboTim

    HoboTim TrainBoard Supporter

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    You know, that is going to be one cool looking engine when you are finished!
     
  8. ddechamp71

    ddechamp71 TrainBoard Member

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    Even if Camelbacks are no thrill to me, congratulations !:D

    Dom
     
  9. CNE1899

    CNE1899 TrainBoard Member

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    I finally made enough headway that I thought I needed to post the progress.

    I bent up some straps and soldered them to some rod for the tanks above the boiler. Created the folding steps above the cylinders (they need to be better scaled). Cut, bent, and glued the fireman's overhang, drilled holes for the bell, and dome on the boiler, and turned the the dome over the cab. I built the tank and toolbox below the cab. Cut and bent a piece to fill in and reinforce the front of the cab. I drilled and tapped the smokebox/boiler to have a mechanical, as well as adhesive attachment to the cab. I will plug the hole in the front with a rectangular piece soldered to rod. I also need to modify the chassis to fit the cylinders. The wheels are a little small, but since they are the closest in size, I'll use them.

    IMG_7833.JPG IMG_7834.JPG IMG_7835.JPG
     
  10. rray

    rray Staff Member

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    That looks Awesome! You are doing so well with it. I can't wait to see the next installment!
     
    CNE1899 likes this.
  11. CNE1899

    CNE1899 TrainBoard Member

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    Coming from you, that means a lot! I enjoy your posts and your creativity and modeling skills.
     
  12. Chris333

    Chris333 TrainBoard Supporter

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    How did you stuff a motor under that? I thought it stood up vertical and the stock cab helped hide it.
     
  13. CNE1899

    CNE1899 TrainBoard Member

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    Chris,
    If you look at the layout drawing just above the Reading locomotive, you'll see some different motor configurations on the Marklin chassis.
    I am using a 6mmx12mm 6V motor on it's side. I am creating a housing that will hold the motor, contacts, and gear to reach the drive gear on the wheel shafts. I have had to do a lot of mods to the chassis. I'll show that soon.
     
  14. CNE1899

    CNE1899 TrainBoard Member

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    Hi All,

    I have made some more progress. I have had to make some features over several times to get the scale correct. Added a tool box, air brake tank, feed lines, reverse mechanism, window ledges, headlight and wheel counter weights. I forgot to take pictures of the motor housing. Chassis and motor housing next post.
    IMG_4720.jpg
    IMG_4717.jpeg
    IMG_4718.jpg
    IMG_4719.jpg
     
  15. shamoo737

    shamoo737 Staff Member TrainBoard Supporter

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    Awesome!
     
  16. John Bartolotto

    John Bartolotto TrainBoard Supporter

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    Outstanding!
     
  17. gmorider

    gmorider TrainBoard Member

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    I am very, very impressed with the camel back. I completely understand "making some features over" myself. Your persistence is paying off. (y)
     
    Hardcoaler likes this.
  18. rray

    rray Staff Member

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    Very nice!
     
  19. CNE1899

    CNE1899 TrainBoard Member

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    Okay,
    As promised here are the chassis modifications and the motor mounting approach I am taking. The stock Marklin chassis is on the left.
    I still need to attach the shaft adapter and worm gear to the motor shaft. The motor mount was fabricated using a piece of Delrin and is attached to the chassis via existing mounting holes.
    The motor is not pushed in all the way. I also need to remove a drive gear from an extra set of drive wheels to link the worm gear to the drive wheels on the chassis.
    IMG_4754.jpeg
    IMG_4755.jpeg
     
  20. shortpainter

    shortpainter TrainBoard Member

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    You are a pioneer, sir.
     

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