Star Trek: The Motion Picture - Wrist Communicator - 3D Print - WIP

Discussion in 'Replica Props' started by Felgacarb, May 31, 2015.

  1. Felgacarb

    Felgacarb Well-Known Member

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    I found a little (very little!) free time to do some CAD modeling, so I thought I'd start a little project!




    Here is what I have in mind:





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    And




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    Searching through screen caps and other projects, it looks as though there are at least two or three other flavors of these things as well- But to start out, I decided to model the two versions we actually see Shatner wear as Kirk.



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    Once I was happy with the first version of the models, I had Shapeways print them for me. As these are pretty small, it was not very expensive- around $30 each.




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    I did the wrist strap separately, so that I could replace it I wanted to fit someone with a different size wrist.... but for now, they look about right for me:


    What do you think, a little big, maybe?



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    The next step will be finishing and painting them up.


    I am excited about this, it will be my first chance to try out Smooth-On's "XTC-3D"


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    It should make finishing 3D prints like these much easier.

    Stay tuned, it may be a while, as I try to sneak project time in amongst other things!


    Thanks for looking!
     
    vidman and Unfated like this.
  2. PotionMistress

    PotionMistress Sr Member

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    Oh, these are so COOL!!!
    :thumbsup

    Can't wait to see how you finish them up!
     
    Last edited by a moderator: Nov 9, 2018
  3. Felgacarb

    Felgacarb Well-Known Member

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    Still haven't gotten to finish these, but I will soon!

    In the meantime, here is the 'paper doll' one I made to check the dimensions...



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  4. Felgacarb

    Felgacarb Well-Known Member

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    Progress!

    Well, a little- I have gotten to mix up and apply a bit of the XTC-3D stuff. It looks like it may work out.

    I'll probably need to sand a little, then hit them with the base coats of paint next:

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    Once it dries...
     
    Chris2082, Unfated and oopie wan like this.
  5. Felgacarb

    Felgacarb Well-Known Member

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    Right! So, I think I learned a few things working with the Smooth-On stuff-

    1) They suggest a working temperature of 73 degrees F- My first batch I tried to apply when it was closer to 85 F- you can do it, but mix very small amounts and work fast- it starts getting 'gummy' and goes on too thick- then dries like that.

    2) It is no longer 'tacky' after about 2 hours, as advertised- but you still need to wait more like 24 hours before you can sand it.

    3) The real trick is in applying thin coats. Work at the right temperature if you can, mix small batches, and move quickly.

    With all that out of the way, here his how things turned out:

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    You can see here that some of my details are ending up a bit soft, even though they were pretty crisp in the 3D print. This is mostly due to my putting it on a bit thick.

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    Painting- I had hoped to just 'black wash' the text in- but the features were so small, and so soft after the smooth-on, that I had to fake them a bit.

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    Overall, I'm pretty happy. I added some black foamy, contact cemented inside the wrist band, and I'm calling these 'costume props.' For display props, I think I'd want another go at printing and applying the finish...
     
  6. TheSt.LouisKid

    TheSt.LouisKid Sr Member

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    I was going to suggest that you first coat just one instead of using it on both but I was too late. Problem with finishing 3D prints is that it is still a frontier craft and the people who do the work are the ones to figure out what process to use depending on a parts geometry...the right tool for the right job. "Black ice" comes to mind with XTC since it's clear leaving you to not be certain where it ends and where the print starts.

    The best results I have had for the shapeways nylon(what you selected) is primer coat, fine grit sanding, repeat as needed.
     
  7. Runnner63

    Runnner63 New Member

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    I would be very interested in purchasing one of the wrist communicators if you have any for sale. I've been searching for years for "tech" from Star Trek:The Motion Picture, but it's almost nonexistent. My email is Runnner63@gmail.com. Thank you and AMAZING results on your project!!
     
  8. VioletSun

    VioletSun Member

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    Oh those are super snazzy! I wonder if there's space to fit some bluetooth fanciness in there...

    Are you planning on making these available through Shapeways?
     
  9. crown victoria

    crown victoria New Member

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    Good job, I second on the making these available through Shapeways
     
  10. Felgacarb

    Felgacarb Well-Known Member

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    Thanks! (VioletSun & crown victoria, too!)

    I'm not offering them for sale thru ShapeWays, as I don't have the license for Trek stuff, and I've had stuff pulled from them before (They got a C&D for an item I didn't advertise or try to sell at all!)

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  11. Rue

    Rue Member

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    Hey bra,

    Greggo says you really need to airbrush something like that if you can. Sure its a bigger mess, and equipment cleaning and replacement learning curve, but the brush will just keep letting you down especially on the smaller projects. Keep on trucking mate!

    Rue
     
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  12. VioletSun

    VioletSun Member

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    Oh that's a shame, darn copywrite holders protecting their IP! :p
     
    Felgacarb likes this.

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