Märklin 4-6-0 conversion

Steffen B Nov 9, 2017

  1. Steffen B

    Steffen B TrainBoard Member

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    Hi all,

    here are some news regarding the 4-6-0.
    Again I was not happy with performance of tender power pick up. It was very difficult to avoid wheel sliding and there were some short circuits from I don´t know where. So it had to wait for another solution.
    This materialized with Rokuhan Shorty Chassis SA004-1:
    upload_2018-8-14_13-43-23.png


    It has tender power pick up:
    upload_2018-8-14_13-45-45.png

    I removed the Rokuhan couplers, installed a MT-coupler on rear end of chassis and tested coupling with car. To make room for the coupler box I replaced one wheel with plastic MT-wheel:
    upload_2018-8-14_13-57-13.png

    upload_2018-8-14_13-50-22.png

    All fitted, so I cut the chassis and glued the pivots on the Märklin tender frame. Besides the pivots I milled the slots for wiring:
    upload_2018-8-14_13-53-4.png

    Yesterday evening ended with this:
    upload_2018-8-14_13-56-18.png

    The wiring should be no problem. But does anyone have an idea for truck side frames (etched parts or so)? At first I wanted to glue plastic side frames on the Rokuhan frames, but this would make the truck to wide. Another way is to make small prints and to glue this on the Rokuhan frames...
     
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  2. Commodore

    Commodore TrainBoard Member

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    Funny, the tender you've used is from the first AZL mikado to sell-out. Why did you scrap such a rare and hard to find engine?
     
  3. Steffen B

    Steffen B TrainBoard Member

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  4. Commodore

    Commodore TrainBoard Member

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    Thanks Steffen, I can sleep better now...

    BTW: Shortpainter figured out how to attach side frames to Rokuhan trucks in his SW 1200 project.
     
    Last edited: Aug 22, 2018
    Kurt Moose likes this.
  5. z.scale.hobo

    z.scale.hobo TrainBoard Member

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    It is from Marklin 8807.

    [​IMG]
     
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  6. Kurt Moose

    Kurt Moose TrainBoard Member

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    I have one of those tenders, with a Zeletory conversion under it.


    Just need a loco to go with it......:whistle:
     
    z.scale.hobo likes this.
  7. ztrack

    ztrack TrainBoard Supporter Advertiser

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    z.scale.hobo likes this.
  8. Commodore

    Commodore TrainBoard Member

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    Thanks Steffen

    Hope you are well. Have you done anything more with this?
    I am interested in following your progress. This conversion ( like your mikado ) is way over my skill level.

    I also want to hear your thoughts on the running characteristics and if you like it, am considering the loco for a Christmas train. Thanks again for sharing your inventive work.

    Rory
     
  9. Steffen B

    Steffen B TrainBoard Member

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    Hi Rory, hi all,
    all I can say today is: This is a REAL long way to go!

    Eventually in September I found truck frames on shapeway for EMD SW1200, based on Rokuhan Shorty:
    https://www.shapeways.com/product/M...k-fuel-tanks?optionId=65583260&li=marketplace

    I thought this would be good enough for commonwealth style tender trucks after a bit of work removing the outerside break shoes (ok, the switcher has roller bearings, I know...):

    4-6-0 2018-11-21_01.jpg

    4-6-0 2018-11-24_04.jpg

    Then I wired the tender chassis and trucks. Soldering the trucks was not a good idea. Although I was careful heat was high enough causing incorrect positions of copper power pickups now touching the wheel discs and causing no free rolling wheelsets. :mad::mad:

    4-6-0 2018-11-24_02.jpg

    4-6-0 2018-11-24_03.jpg
    Further more the wire is still too stiff for both free truck motion and connection between loco and tender. I used wire called "decoder litze" AWG 36 with silicon isolation, thought it would be soft enough.

    All in all the loco now needed a significant amonut of its pulling power moving itself! That was definitely NOT what I want.
    Until I have a better solution the Tenwheeler get a new Märklin tender with AZL trucks and no power pickups.

    While being part of the annual train show at Emleben / Thuringia I worked the cab roof.
    4-6-0 2018-10-27_01.jpg

    The current status of my 4-6-0 is this, waiting for its running gear (valve rod, cross head guide) and then a paint shop:
    4-6-0 2018-10-27_02.jpg

    @Rory: Running characteristics are quite good for a Märklin loco (y) You can see a short video somewhere in this thread.
    My has the 5 pole motor and blackened wheels. OK, it is not AZL, but you get a nice detailed and robust loco for a good price.
     
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  10. Commodore

    Commodore TrainBoard Member

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    Thanks Steffen
    I appreciate the answer. I'm going for one as my new Christmas loco ...at your recommendation.

    Merry Christmas, everyone!
     
  11. Steffen B

    Steffen B TrainBoard Member

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    Hi all,

    the last days I spent with assembling the valve rods and painting using vallejo and powder paints.
    I think its done for the christmas traffic. :)
    The final steps would be highlighting some details and to apply decals.

    DSC_0124.jpg
    DSC_0131.jpg
    DSC_0133.jpg
     
    CNE1899, ddechamp71, JoeS and 6 others like this.
  12. ZFRANK

    ZFRANK TrainBoard Member

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    Looks good!

    Verstuurd vanaf mijn ANE-LX1 met Tapatalk
     
  13. Commodore

    Commodore TrainBoard Member

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    I like the new roof line. Totally different era!

    Merry Christmas!
     
    Last edited: Dec 15, 2018
  14. Kurt Moose

    Kurt Moose TrainBoard Member

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    Excellent work!!(y)
     
  15. eXact Modellbau

    eXact Modellbau TrainBoard Member

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    Steffen, it's amazing what you got out of the model. Great job!
     
  16. Steffen B

    Steffen B TrainBoard Member

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    Hi all,

    thank you very much for your kindly words and:

    Merry Christmas!
     
    bostonjim likes this.
  17. bostonjim

    bostonjim TrainBoard Member

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    Merry Christmas to you and all the TB crowd. Peace on earth, please. Jim
     
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