Kyle of Lochalsh

Discussion in 'Members Personal Layouts' started by redpiperbob, Sep 8, 2016.

  1. redpiperbob

    redpiperbob Full Member

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    Finally for today I thought you might like to see some pics of the deck mods I have made to make it more like the Kyle turntable.
    Thats it
    Be seeing you
    Bob
     
  2. ian jeffery

    ian jeffery Full Member

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    Hey Bob,

    Wow, that looks amazing! I love the mods to the turntable bridge.

    Good write up too.

    If anyone wants any help, or wants to ask any question please feel free.
     
  3. Toto

    Toto I'm best ignored Staff Member Founder Administrator

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    Nice work Bob. I see you have written the Arduino script for it as well. His nibs will be all over that ..... At least he'd better be ........ he's doing mine. :avatar:

    great work.

    cheers

    toto
     
  4. redpiperbob

    redpiperbob Full Member

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    Hi Toto
    No I did not write the Arduino Sketch it came from WWW.DCCINTERFACE.COM Ian Jeffery had a hand in it. I just modified it to suit my requirements.
    The interface board I am using came from the same place.
    be seeing you
    Bob
     
  5. ian jeffery

    ian jeffery Full Member

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    It was an evolution of "Tender"'s original sketch, adapted by myself and Alex Shepherd who wrote the Nmra library - and then i usually help the customers adapt it further for their own needs.

    Its used as a demonstration of what you can do, and to show how all the bits hand together ... mainly as a guide or a thought provoking process.
     
  6. redpiperbob

    redpiperbob Full Member

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    PART NINE

    Now for the part of the code that relates to the number and positons of the deck.

    First of all to define the home position.

    So “FULL_TURN_STEPS” = 4800

    If you divide that by 3

    As in the line below you get 1600

    // home location

    #define entryStation FULL_TURN_STEPS / 3


    I actually divided 4800 by 12 to give me 400 which is my home position.


    This gives me the correct start position of the deck for my layout.

    Now to get the reverse end of the deck into the same position you just need to

    Take the position “entrystation” and add 4800 (FULL_TURN_STEPS) then divide by 2.


    These are the lines in my version of the code


    // this is home

    gAddresses[0].address = 300;

    gAddresses[0].stationFront = entryStation;

    gAddresses[0].stationBack = entryStation + (FULL_TURN_STEPS / 2);


    Now you can set up as many stations as you like . You will need to change

    The “gaddresses” to the number of stations you need.



    DCCAccessoryAddress;

    DCCAccessoryAddress gAddresses[2];



    So if you need two stations the code will look like this.

    (My DCC packets start at 300 )



    void ConfigureStations()

    {

    // this is home

    gAddresses[0].address = 300;

    gAddresses[0].stationFront = entryStation;

    gAddresses[0].stationBack = entryStation + (FULL_TURN_STEPS / 2);



    gAddresses[1].address = 301;

    gAddresses[1].stationFront = (FULL_TURN_STEPS /8);// * 2);

    gAddresses[1].stationBack = (FULL_TURN_STEPS / 8)+ (FULL_TURN_STEPS / 2);// * 2)

    }


    Be seeing you
    Bob
     
  7. redpiperbob

    redpiperbob Full Member

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    PART TEN

    And here is a video of the turntable under test (sorry about the background noise it was the 3D printer doing its stuff) and the turntable noise is no longer there it just needed the central plastic bearing greasing.

    I first reset the board then the deck moves to home then I press 301 close on the DCC controller to move to position 301 then I press 300 throw and the deck moves to300 reverse then I press 301 throw and the deck moves to 301 reverse then I press 300 close and the deck moves to 300.



    Bob
     
  8. redpiperbob

    redpiperbob Full Member

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    PART ELEVEN
    now for the base
    I coated the base with glue then sprinkled on fine ballast grit.
    as in the following



    then I painted the grit with matt black to give the impression of ash



    then I fitted the deck

    Be seeing you
    Bob
     
  9. redpiperbob

    redpiperbob Full Member

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    Tested on the layout . I haven't got my Caledonian railway blue McIntosh 812 Class 0-6-0
    so I loaded this loco for a picture.

    Be seeing you
    Bob

     
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  10. redpiperbob

    redpiperbob Full Member

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    Hi All
    it has been suggested to me that others may like to build a turntable of their own to this design.
    And to that end I am prepared to cut the 2 mounting plates and to post them of to
    UK members at a price of £25 including post and packaging.
    Note this is only for the 2 acrylic mounting plates.
    If anyone is interested please PM me.

    Be seeing you
    Bob
     
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  11. ian jeffery

    ian jeffery Full Member

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    I think that sounds like a really reasonable price considering the effort you have gone to designing the plates and testing them.
     
  12. redpiperbob

    redpiperbob Full Member

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    Hi Ian
    thanks for your support.
    be seeing you
    Bob
     
  13. jakesdad13

    jakesdad13 Staff Member Moderator

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    Absolutely!
    If I modelled in 4mm and I understood half of what you have done I would invest in the adaptor plates.

    Cheer's, Pete.
     
  14. paul_l

    paul_l Staff Member Administrator

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    Simply brilliant Bob
     
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  15. ian jeffery

    ian jeffery Full Member

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    Happy to help explain anything you need explaining :)
     
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  16. redpiperbob

    redpiperbob Full Member

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    Hi All
    here are a few pictures of a direct drive version of the turntable If anyone is needing more details I will answer any questions you have. I do not have another Peco turntable to fit this to and as my geared version is installed and working on my layout I do not want to disturb it.




    Be seeing you
    Bob
     
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  17. ian jeffery

    ian jeffery Full Member

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    the direct drive looks great too.

    Happy to go halves with you on a turntable to help with the design refinement.
     
  18. redpiperbob

    redpiperbob Full Member

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    PART ELEVEN



    So after all that I bet you thought that it was all finished.

    Well I thought that a direct drive might be what some of you might want.

    I actually made this direct drive first. But I thought that the geared system was smoother.

    I then played about with the settings for the motor to get them as smooth.

    So here it is.









    PARTS NEEDED

    Stepper motor

    https://preview.tinyurl.com/ybbr9cys

    pins 1-3 coil one blue and red

    pins 2-4 coil two green and black


    Connector

    https://preview.tinyurl.com/y6wxyyha

    Arduino Nano

    https://tinyurl.com/yb3otus6

    DCC Interfaces Kit

    https://tinyurl.com/ycs98fj8

    Hal Sensor

    https://tinyurl.com/y9bgxn7y

    Also required

    3 off 37 mm x 18mm long spacers for plate mount to turntable

    3 off M3 x 50 mm countersunk screws for plate mount to turntable


    4 off M3 x 10mm screws (motor mount)

    3 off circuit board standoffs

     
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  19. redpiperbob

    redpiperbob Full Member

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    I forgot the pin to connect the turntable to the motor connector is 5 mm x 20 mm glued into the turntable.
    So that should finish this thread unless someone has any questions of if I can help in anyway.
    Please get in touch either PM or through the thread.

    be seeing you
    Bob
     
    Last edited: May 25, 2018
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  20. ian jeffery

    ian jeffery Full Member

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    The direct drive plate looks good. Can you take a picture from the side to see how tall it makes it?
     

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