Droid Caller with electronics (dmachinist kit)

Discussion in 'Star Wars Costumes and Props' started by Luke the Belter, Mar 27, 2015.

  1. Luke the Belter

    Luke the Belter Well-Known Member

    Trophy Points:
    586
    Hi...

    I got one of dmachinists wonderful kobold kits but as awesome as his kit is this should not become a "see what I have"-thread ;) there are quite a few outside yet.

    When I have prop in my hands I want it to do something special - lightsaber light up, make sound - droid caller buzz.

    So I searched for the right electronics to get a nice buzz as near as possible to the movie droid caller.
    I got a result which sounds really nice and some members here suggested that I should share my wisdom with you.

    Theory

    There are three types of buzzers:

    - piezzo
    - electronic
    - mechanical

    The first and the second type just make high frequencie whistling noices through setting a membran under voltage. They normaly have round covers.
    What you want is a mechanical buzzer
    It contains an electro magnet and a small metal arm which can oscillate.
    When you close the electric circuit the magnet attracts the metal arm. When the metal arm gets in contact with the magnet the electronic circuit is broken and the arm oscillates back in starting position. Just then the circuit is closed again and the magnet attracts the metal arm...
    and so on.
    The oscillating from the metal arm gives the buzzing noice.

    So I can say don't try any round buzzer there isn't enough space for this setup.


    20150317_175159.jpg 20150317_175252.jpg

    Fitting the electronics inside the kobold

    I had the idea that I could use the flash button to switch a micro switch on the inside of the kobold head.
    I invented an acrylic glass disc which holds the micro switch in place and sits tight in place.

    20150311_191202.jpg 20150311_191514.jpg 20150311_191605.jpg 20150311_192222.jpg

    20150311_192255.jpg 20150311_205431.jpg 20150316_180427.jpg 20150316_175227.jpg


    20150317_180444.jpg 20150326_072559[1].jpg

    You have to make sure that the buzzer sits tight in place and has no contact to the droid caller metal, otherwise after the first buzz the magnet attracts the metal from the caller and you have to detach it and set it in place again. I used some foam sheet and glue.


    Now the "see what I have"-part ;)

    Droidencaller 17.jpg Droidencaller 16.jpg


    And here the buzzing sound



    Feel free to ask any questions.
    I hope you like it.

    20150317_175252.jpg

    20150317_175159.jpg

    20150311_191202.jpg

    20150311_191514.jpg

    20150311_191605.jpg

    20150311_192222.jpg

    20150311_192255.jpg

    20150311_205431.jpg

    20150316_180427.jpg

    20150316_175227.jpg

    20150317_180444.jpg

    20150326_072559[1].jpg

    Droidencaller 16.jpg

    Droidencaller 17.jpg
     
    Last edited by a moderator: Nov 8, 2018
    kacrut, Dann, veektohr and 5 others like this.
  2. Sym-Cha

    Sym-Cha Master Member

    Trophy Points:
    3,305
    Looks and especially sounds fantastic ... well done ... alas electronics is not my speciality :wacko

    Chaim
     
  3. mugatu

    mugatu Sr Member RPF PREMIUM MEMBER

    Trophy Points:
    1,782
    Very informative and well researched. Thank you for sharing this. It looks (of course, dmachinist) and sounds, and I'm also sure feels, really Pro.
     
  4. halliwax

    halliwax Master Member RPF PREMIUM MEMBER

    Trophy Points:
    4,970
    that sure is a beauty!! nice job
     
  5. QCWolf

    QCWolf Sr Member RPF PREMIUM MEMBER

    Trophy Points:
    1,236
    She's a beaut' Clark!
     
  6. Luke the Belter

    Luke the Belter Well-Known Member

    Trophy Points:
    586
    I added a dome to the caller, lately.
    So I could wear it on my Luke ANH belt.

    Not very difficult to build. I used a measure spoon of the size "table spoon 15 ml".

    Droidencaller 18.jpg Droidencaller 19.jpg Droidencaller 20.jpg

    I used a rotary tool to trim it to the right size.

    Droidencaller 21.jpg Droidencaller 22.jpg Droidencaller 23.jpg

    After that I glued a short piece of PVC pipe in the spoon.

    Droidencaller 24.jpg Droidencaller 25.jpg

    The pipe fits into the droid caller head and is holded in place by the small screw which is screwed in the bulb holder.

    That is my result.

    Droidencaller 27.jpg

    Droidencaller 18.jpg

    Droidencaller 19.jpg

    Droidencaller 20.jpg

    Droidencaller 21.jpg

    Droidencaller 22.jpg

    Droidencaller 23.jpg

    Droidencaller 24.jpg

    Droidencaller 25.jpg

    Droidencaller 27.jpg
     
  7. mugatu

    mugatu Sr Member RPF PREMIUM MEMBER

    Trophy Points:
    1,782
    Man, it looks real. Great job on the dome and great find on the spoon.
     
  8. QCWolf

    QCWolf Sr Member RPF PREMIUM MEMBER

    Trophy Points:
    1,236
    I love using found items on a prop. Great work! Looks amazing. I have not built my DEC droid caller yet. Seeing this makes me want to get to work ASAP!
     
    Luke the Belter likes this.
  9. tomm1999

    tomm1999 Sr Member RPF PREMIUM MEMBER

    Trophy Points:
    1,731
    I just ordered a DEC droid caller, both of you took an amazing piece and took it one step further,
     
    Luke the Belter likes this.
  10. Psab keel

    Psab keel Sr Member RPF PREMIUM MEMBER

    Trophy Points:
    2,190
    Any chance you'd be willing to share a parts list for the electronics?
     
  11. Luke the Belter

    Luke the Belter Well-Known Member

    Trophy Points:
    586
    It is very easy.
    You need a connection to the battery, a momentary switch, some cable, something to hold the switch in place as I did with some acrylic glass AND a MECHANICAL buzzer.
    I can't give you the specific name of the buzzer because im in germany and there are other electronic shops here.

    If you have any further questions I'll try to answer them.

    Gesendet von meinem SM-G930F mit Tapatalk
     
    karmajay likes this.
  12. Psab keel

    Psab keel Sr Member RPF PREMIUM MEMBER

    Trophy Points:
    2,190
    This is hugely helpful. Thank you
     
  13. HB1098S

    HB1098S Sr Member RPF PREMIUM MEMBER

    Trophy Points:
    1,035
    I offer a nice Machined Aluminum Droid Caller top cap that fits the Dark Energy Caller. Nice work on the electronics
     

Share This Page