My Ghost from Destiny

Discussion in 'General Modeling' started by Justphred, Sep 13, 2018.

  1. Justphred

    Justphred New Member

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    So this project of mine is one that has really pushed my abilities, and I am so grateful for it.

    one of my favorite thing to do is to time to time look on Thingiverse for different models I would love to print off, and When I came across the the ghost model from BoldPrintShop I really got inspired. To me their model was so good that I had to make it. So I had the files for ever and didn't do much with it, and once I started to think about it is when the rabbit hole really swallowed me up.

    View attachment 842683

    In the game the character is much more active, that just having a static model didn't feel right. There was so much movement and positioning that made the character come to life that I wanted to be able to have in my model. At first I told myself that I was just going to make the wings rotate. Which seemed like a huge feat on its own because at the time I had done little to no design work. However once I decided I was going to add that feature. everything else felt like It needed an upgrade. the biggest thing being that of the eye in the middle. Using just a simple LED to light it up, wasn't going to do. So I planned on giving it a brain. OLED screen, Speaker, Battery powered. Browsing Adafruit was not helping.

    I decided that I was going to make the rotation of the wings work like a Rubik's Cube (or at least how I thought one worked.) so I devised a mental plan to use post running in groves, essentially T-tracks designed into the Center sphere.

    View attachment 842688

    I thought that designing a sphere would be easy enough and was well within my abilities... I was wrong. I was just using 123D Design at the time and had a mess of a project. it sat on the shelf for a while and then I picked it back up. got my own 3D printer so a new found drive on the project had been started. thats when I learned about bringing SVG drawings in from Illustrator, a program I was more that comfortable with. That and starting to use Fusion 360 made it all more real.

    I got to a spot where I had things printed off and I was even going to sand and paint the Wings. Then however a cascade of issues happened. I used the wrong clear coat. A metal part I had printed off from Shapeways broke, and I was biting off more than I could chew with regards to the the brain of the thing.

    Time passed and I had shelved the project again. It was a slow week at work a few weeks back, and I spent the time getting the printer up and running again. The hot end needed to be replaced and just some general touching up. once I got it going, the files for the wings were still on the card so I set one to print. Having printed several off before, I figured I could use that a test print to check that it was working properly.

    That flipped a switch for me and the project was back on. I printed a whole set off and was starting to get the desire to make silicone molds and cast them in resin. But in that down time where the project was on the shelf I had found some resource images that showed more detail that I needed to have in my model. The plan was to always use the wings that I downloaded from Thingiverse. They were just SO good, and I didn't even know where to start with modeling them. But not having that extra detail was killing me. Also I didn't want to spend the time and money on making molds of parts that I was just going to improve upon later...

    View attachment 842690

    Specifically it was the detail on where the wings attached to the center eye. there were a few other parts on the models I downloaded that were different, but I figured I would have to live with. I spent a few days trying to take the STL files I had into something I could edit, but giving up on that pushed me into figuring out how to make my own.

    a45ea98b-461b-4e2b-8ce5-668c643d3154.PNG 32efaab1-0664-421c-ad3e-9acc746c309d.PNG

    Once I figured the shape out it was this snow ball effect of making everything just how I wanted it. It's just been within the last day, that I feel like the models are almost there. And it has been really exciting to see it come together.

    So whats next, well like I said the models for the wings aren't done. Ironically the part I wanted to add detail to in the first place I haven't touched yet.

    IMG_1309.JPG

    I'm just not sure how to go about designing it. I want some relief but don't have much room to go in on that bottom edge. Any advice would be greatly appreciated.

    Then next phase after modeling will be working on the Brain, And for this I could REALLY use help. I have a parts list and even a plan for animations of the eye. but getting them all to work, program them and all that, is something I have never ever done. I have been planing for them while designing the center eye keeping board sizes in mind and making sure they will fit. but again making sure they will all work together is something else.

    Screen Shot 2018-09-13 at 3.09.59 PM.png Screen Shot 2018-09-13 at 3.06.02 PM.png

    Long post, If you are still reading, Thank you. and if you can help me with any of the parts I have to work on moving forward I would greatly appreciate it!
     

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  2. George

    George Sr Member RPF PREMIUM MEMBER

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    The first three photos do not show up
     
  3. Justphred

    Justphred New Member

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    Not sure why that was. The first was a gif and the other two were screen grabs of fusion. I think they are all in the attachments regardless.
     

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  4. Justphred

    Justphred New Member

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    What a difference a day makes...

    So I mostly had been ok with where it was at... until I looked closer at the reference images I had... and I saw angles that couldn't be unseen.

    View attachment 842962 View attachment 842963

    So I spent the day redesigning the Wing and horns from scratch. Mostly because it seemed easier. I liked the files I had and going back in Fusion 360 I still don't fully understand.

    View attachment 842964
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    Side-old-new.jpg

    it's really subtle, but it also gave me a reason to change little accents on the Wings and Horns that i could have done better last time. But I was to lave to change, because I thought they were "good enough".
     

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  5. Inquisitor Peregrinus

    Inquisitor Peregrinus Master Member

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    Great minds, and all that. I've got a couple of the vinyl Ghosts one can get at GameStop ThinkGeek, Target... The internet... *shrug* Fifteen bucks a pop for some pretty decent starting fodder. Measured the center sphere, measured the horizontal "sandwich" layers' thickness, noted the positions of the detailing on the sphere, measured the eye, cut things up to have a clean, separate piece of each wing and wingtip, using the sandwich layer to create templates...

    I got a twleve-pack of blank plastic Christmas-ornament spheres off Amazon of the right size for the core. One's the main body, with the large and small cutouts being carefully positioned, a couple are sacrificed to cutting all the heels and caps for the sphere, the rest are backups in case I screw up. I've sourced the right size round screen for the eye, and am hunting for a good lens. I have a friend who's going to assist with the programming and such. I'm looking into a levitating globe to cannibalize for the hover bits. Still sorting out wing articulation and such.

    It's a fun project, and I'm looking forward to seeing how yours turns out. :D
     
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  6. Justphred

    Justphred New Member

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    I saw one of those figures at BestBuy last week, before I started doing all my remodeling of the wings and horns. And honestly it knocked the wind out of my sails for a second. I had spent a lot of mental energy on this thing, and there it was sitting in a box for 15$.

    But a few minutes went by and I told myself that my ghost had already been such a fun project to work on that I could give up on it (many other projects have I put in cold storage)

    Mine isn’t the exact size of the official ghosts that you can buy though; I think it’s a little smaller. I would be interested in getting your measurements.
    Also where did you source a round screen? I doubt I’ll be able to find one that fits the space I have inside my center eye, but maybe.

    I also thought about using clear ornament spheres for the glass in front of the eye. But I knew that you can buy a kinda of watch parts on eBay so I’m going to use a domed round sapphire glass, meant for watches. You can get them in so many different parameters.

    I’d love to see your progress as well!
     
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  7. Inquisitor Peregrinus

    Inquisitor Peregrinus Master Member

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    I'm flying back home tomorrow. I'll dig up my numbers and sources this weekend. :)

    And definitely don't let the official beastie knock you off stride. If nothing else, the time youve spent delving into how the thing goes together, the angles and details and movement points...? That's essential information, there, whatever materials you end up working with. You'll be bringing that eye for obsessive detail to it. Trust me, that official Ghost is good, but could use some superdetailing, even if one *wasn't* going to butcher it to go all Six Million Dollar Man on it. For what you and I have planned, it's a very good starting point, and could potentially save you some 3D modeling and printing time and effort. But what you've already done certainly isn't wasted.
     
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  8. Confused85

    Confused85 Active Member

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    So glad I found this thread. I am gearing up to make mine soon as well.

    My plan was to have it on thin, possibly posable, tube on a base to look like it's floating.

    The front horns would be the core frame, and off this would be the rear horns that would rotate and inside the eye would look around on a universal joint.

    My stretch goal is to find a way to make the front horns move in and out like it does for its "facial expressions".

    These would all be controlled by servos in the base with fishing line up to the ghost.

    Sent from my Moto G (5S) using Tapatalk
     
    Last edited: Sep 19, 2018
  9. Justphred

    Justphred New Member

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    thats exactly what mine do.

    e1bede22-dae0-4ae9-bdc6-178005e84a2a.PNG
    Screen Shot 2018-09-13 at 2.05.17 PM.png

    I designed grooves around the center sphere that will allow for me to movie them around, and furrow its brow.

    also I finally got around to detailing the inside of the of the horns. they print out ok but I have some cleanup to do on them to be sure.

    IMG_1415.JPG IMG_1417.JPG
    Screen Shot 2018-10-04 at 4.08.50 PM.png

    - - - Updated - - -

    I take it back Confused85, Mine will just move freely, not controlled by servos.
     
    Last edited: Oct 4, 2018
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  10. Confused85

    Confused85 Active Member

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    Interesting! The more I look at it, the more I think I will just have the eye look around and the back horns spin back and forth.

    What screen have you found for the eye? I have done an oled screen with Arduino for my dredd lawgiver so think I could do it.

    Sent from my Moto G (5S) using Tapatalk
     
  11. Justphred

    Justphred New Member

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    I was looking at some parts over on Adafruit.

    https://www.adafruit.com/product/1673

    It's going to take some work to get it to fit into the space I have inside the eye but I have been trying to map it all out, and I think it will fit.

    This is my rough plan
    the brain.png

    Getting it all to run on the other hand is something I have never done before, and would gladly accept any pointers or tips you might have.

    Here are links to all the various parts that I think I need so far.

    Audio Board and Amp
    https://www.adafruit.com/product/2341
    https://www.adafruit.com/product/2130

    Adafruit Trinket
    https://www.adafruit.com/product/2000

    Battery Backpack
    https://www.adafruit.com/product/2124

    Things I am unsure on is power requirements... getting this to run on a battery would be Ideal but I have not clue how to figure all that out. nor do I know how to wire all this up. I have a rough concept in my head, but have no clue if it is based in reality at all.
     
  12. Confused85

    Confused85 Active Member

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    Adafruit do have a lot of good tutorials.
    I am using their GFX graphics library. Between the tutorial, example code and forum I have managed to get pretty far along.
    I've not used anything other than that yet myself.

    As for the battery, you can have it removable to save space for having a charger board inside the eye. If you try to pick a screen etc that all use the same voltage as your battery it will be easier

    Sent from my Moto G (5S) using Tapatalk
     
  13. Justphred

    Justphred New Member

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    I have looked at their tutorials before, and they always seem very narrow to the project they are working on. Where as I just have general concepts that I want to make happen.

    Power for me has been a big confusion point. How to make everything power off one battery, and how to just make all the different systems interact is just a mystery that I wish I knew how to solve.

    When I see projects that other people put together, I am left in awe wondering how they knew what needed to be done.


    I guess I just need practice
     
  14. Justphred

    Justphred New Member

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    So I am getting closer. I am happy with all the designing at this point. I have one more of the Horns to print out. Then I'm going to clean them up with some bondo in a few spots, really get the finish down, and then the plan is to attempt to make two part silicone molds then cast them...

    the parts for the center eye have a little more work. I have to make some crew mounting points on the inside which shouldn't be to hard. I just need to figure out what screws I'm going to use. then I plan on getting those printed from somewhere like Shapeways. The detail on the parts for the eye is just something I can't get out of my printer. At least not that I have been able too.

    26AA9325-A744-45E8-8638-CCE90DD6A666.JPG
     
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  15. Daeothar

    Daeothar New Member

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    I'm afraid I can't help with your questions; I just don't have the knowledge. Also, while I, sort of, know about Destiny, I'm not particularly familiar with the game either.

    But this project does intrigue me; there's so much engineering and designing going on, it's just too interesting to pass by.

    Please keep it up; I'll be following this, even if it were just to learn something... :)
     
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  16. Justphred

    Justphred New Member

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    Im excited to be sharing it. Im hoping that in doing so, I'll keep the the progress moving forward.

    most of the engineering has been done by eye, really. I have no clue If the grooves along the eye are going to work. I might have made my tolerances to tight. I also do understand that this is a learning experience.
     
  17. Justphred

    Justphred New Member

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    Update.

    So I finally got the tabs for * the various parts of the Eye together. At first I designed them to small, and shaped them in a way that would have made it impossible to assemble.

    but I eventually settled on a robust, and potentially over-engineered...

    View attachment 850090 View attachment 850091

    once I had those done I wanted to make sure I still had the clearance on the inside of the eye for all the various electronics I think I'm going to need in there. It was then that I discovered that Adafruit has made Eaglecad files available for most of there products. and it was then that I discovered that Eagle can export those drawings to a step file. so I went ahead and exported files for all the different components and brought them into my file.

    as I knew already the board for the OLED screen that I want to use won't fit unless I modify it.

    View attachment 850092 View attachment 850093

    I had planned on cutting off the four screw post anyway. However the new tabs for * everything together made it all too tight. I thought about it, and at this point I think I am going to rotate all the boards 45º

    View attachment 850094

    I'm not sure If I'll even be able to do this. Using the screen I am planning on using, all ready has a stipulation to it. I'm hoping that I'll be able to remove the screen from the board. from what reviews say, it is just held to the board with double sided tape.. so I'm hoping I can lift that off. and also hoping that I can now extend the ribbon cable connecting it to the board. (also Im hoping that the physical size of the actual screen is small enough to fit into the cut out I have made for it.... :lol:wacko)

    Once I had all that done I started double checking everything. making sure all my work was correct. Which lead me to COMPLETELY remodeling the middle right of the eye...

    The way I had originally modeled these parts was by drawing a profile in Illustrator. Exporting SVG files that I would then bring into Fusion. and then revolve those drawings around a center axis. this would lead to different drawings being slightly off from one another. and things, over all working, but not pretty.

    View attachment 850095

    The reason I chose to redo the whole thing is because I was starting to think about painting this thing. And I started to worry that my tolerances were to tight. In the process of trying to push everything back so I would have enough room, I kept running into areas like in the picture above. It wouldn't let me push one area back because of how it was modeled. so I said screw it. and started from scratch. This time doing all the work in Fusion. In the end, it is now a much cleaner model, and Im happier for it.
     

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  18. Justphred

    Justphred New Member

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    Screen Shot 2018-10-22 at 7.58.25 AM.png

    Exploded view for anyone interested in all the parts that make up the center eye...
     

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