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  1. #1
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    Dualencoder with pushbutton

    Hi all friends !

    I just want to share some pics of my DIY build CTS288 dualencoder with
    pushbutton.

    The first encoder that sits in the backplate of the panel is drilled
    through with a 1,6mm drill and looses the switch therefor.

    I made a bushing on my lathe to connect the 1,5mm rod that goes through
    the first encoder with the second encoder.
    The second encoder has still his switch functionality.

    Here are 2 pics

    Enjoy





    Kind regards
    George

  2. #2
    2000+ Poster - Never Leaves the Sim Trevor Hale's Avatar
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    Slow and steady in the drill press, but looks like a great solution. Great stuff.

    Trev
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  3. #3
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    Thumbs up Dual encoder Mod's

    Hi George quick question did you have to dismantle the encoder before drilling through the shaft or were you able to drill through the shaft and sacrifice the switch without any bits floating around inside the encoder ? nice work by the way have a few encoders i got off ebay and this may be the answer to my problems regarding dual encoders

  4. #4
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    Hi wannabeaflyer!

    Yes: first step is to dismantle the encoder.

    loose the 4 little metal clamps on the sides carefully.
    Bring in mind how the encoder is put together so you have no problems
    to get it back together
    Bring off the silver metal clamp from the top plastic and take out the rod.

    Now you need a lathe to cut the little 2mm piece which is normaly clicking
    the pushbutton.
    Then drill a hole of 1,6-1,7mm through the shaft.
    But be carefull that your drill is exactly in the middle of the shaft.

    Now you must drill a hole with 2mm diameter through the plastic backplate of the encoder right in the middle.
    Do not wonder when the little pushbutton springs out

    After this step you can remount the encoder.

    For the inner rod i use 1,5mm spring steel rods.
    They are really sturdy!
    Meassure out the lenght you need and cut a piece off.

    To get the second encoder binded with the inner rod you need
    to drill you a bushing on the lathe out of aluminium
    with 17mm lenght and one hole with diameter 6,4mm on one side
    and 1 hole with diameter 1,6mm on the other side.

    Every hole is drilled 8,5mm deep to the center of the bushing.
    After that you need to drill 2 holes for the M3 holding threads.

    To hold the 2 encoder together i used 2 plates out of 1,5mm aluminium
    and glued it together with epoxyd glue.
    Thats only for testing because i want to be able to change the encoders
    in future and will do it with 2 alu plates and spacers.

    I hope i helped you out a bit and hopefully somebody understands my English

    Kind regards
    George

  5. Thanks wannabeaflyer, Joe Lavery thanked for this post
  6. #5
    500+ This must be a daytime job ian@737ng.co.uk's Avatar
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    dual encoder

    hi guys.......
    leo bodnar has a new product in his stable (sorry george, i know you've spent a lot of time and effort in getting your dual encoder up to speed).
    he's introducing the new ELMA dual encoders with push switch into his range. i'm lucky enough to have the first pair out. lovely quality, exceptionally nice 'feel' and we can work with them.
    have a look at this thread: http://www.mycockpit.org/forums/showthread.php?t=15958
    now i can get the EFIS working exactly how it should ))
    enjoy tomorrow chaps.... ian
    Mr. Ian. P. Sissons is hereby recognised as an Honorary Flight Sim Captain following his passing in February 2016. This is in recognition for his commitment to Flight Simulation.

    www.mycockpit.org Featured Builder August 2008 www.737ng.co.uk
    FS9/PROSIM737/CPFLIGHT/Lots of BU0836X's and a Beer Fridge

  7. #6
    25+ Posting Member
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    Hi Ian

    Nice to hear from you ! Missed you in Lelystad last year

    Yes i have seen Leos encoder post.
    But i dont think these encoders work directly with the opencockpits mastercard.
    They have 2bitquadrature code.

    My post was intend to show people who have some spare CTS288 encoders
    how to make a dual one out of them that works 100% directly with OC
    mastercard.

    Have you made a test with the Elom encoders?
    Any results?

    Looking forward for some more infos.

    Kind regards
    George

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