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PiCasso Design Challenge
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PiCasso Design Challenge
Blog Hologram Pi-ramid - Intro and initial design
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Engagement
  • Author Author: luislabmo
  • Date Created: 14 Mar 2019 11:51 PM Date Created
  • Views 3433 views
  • Likes 15 likes
  • Comments 4 comments
  • picasso
  • touch screen
  • rpi 3b+
  • addressable led
  • raspberri pi
  • rgb
  • luislab
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Hologram Pi-ramid - Intro and initial design

luislabmo
luislabmo
14 Mar 2019

While I was looking for inspiration to bring and idea to life for the PiCasso Design Challenge I came across something clever, really unique and something I really wanted to try for myself once I understood how it worked: A Hologram-like projection using the Pepper's ghost principle.

 

Using the Pepper's ghost principle one can create a 3-D illusion displaying symmetrically opposite images that seem to float in mid-air and which are visible from different angles, this by no means is a 3-D image of course but a projection of 2-D images producing a clever result.

image

This project will involve some research as most of the projects related I've found rely on the Pepper's ghost pyramid that is used on top of a screen -or at least most of the ones I've seen-, like the animation below.

image

To build this project I'd like to put the display that projects the images on top of the pyramid which I plan to build with pieces cut from a Plexiglas sheet and may require slightly different angles to build. Also I'm planing to use custom-made 3-D printed parts to make all the assembly in general.

image

As of now, the general assembly and build of materials will consist of the following:

  • Raspberry Pi Model 3 B+: will be orchestrating all the electronics components, processing the images/animations synchronization and light effects
  • Plexiglas pyramid shape
  • Raspberry Pi 7" Touch Screen Display (or any HDMI screen): will display the images that will be reflected on the pyramid
  • Addressable RGB LED mounted on custom-made PCBs: this will add a little bit of mood lightning to the project and also can be used to create light effects that will be coordinated with the images displayed by the RPi's screen
  • If everything goes as planned and this projects comes to life without much trouble, I'd like to add a human presence maybe using the Raspberry Pi Camera V2 and OpenCV. The human presence will trigger a change in the visualization and/or more effects added to the animations
  • To complete the project other components are required like microSD card with Raspbian, Pi Power supply, enclosure, wires, custom PCBs, etc.

 

 

Blogs in this series

 

  1. Hologram Pi-ramid - Intro and initial design
  2. Hologram Pi-ramid - 3D CAD/CAM design
  3. Hologram Pi-ramid - 3D printed parts and initial assembly
  4. Hologram Pi-ramid - Plexiglass Pyramid
  5. Hologram Pi-ramid - My name is Automan
  6. Hologram Pi-ramid - PCB Design
  7. Hologram Pi-ramid - Painting the 3D printed parts
  8. Hologram Pi-ramid - Electronic Parts
  9. Hologram Pi-ramid - Displaying Holograms
  10. Hologram Pi-ramid - Project complete!

 

  • My Picasso Design Challenge entries

 

 

 

image
3D CAD/CAM design

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Top Comments

  • balearicdynamics
    balearicdynamics over 6 years ago +5
    Sounds a great idea. Reading your project draft it is the first time I understand in depth what is the principle of this holo-like mechanism. Enrico
  • genebren
    genebren over 6 years ago +3
    Very interesting project. I look forward to following along with your progress through the challenge. Good luck! Gene
  • 14rhb
    14rhb over 6 years ago +2
    Hi Luis, This looks like a really neat project idea, and something I hope you succeed at, as I want to see the end result. Good luck. Rod
  • luislabmo
    luislabmo over 6 years ago in reply to 14rhb

    Thank you Rod.

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  • 14rhb
    14rhb over 6 years ago

    Hi Luis,

     

    This looks like a really neat project idea, and something I hope you succeed at, as I want to see the end result. Good luck.

     

    Rod

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  • genebren
    genebren over 6 years ago

    Very interesting project.  I look forward to following along with your progress through the challenge.

     

    Good luck!

    Gene

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  • balearicdynamics
    balearicdynamics over 6 years ago

    Sounds a great idea. Reading your project draft it is the first time I understand in depth what is the principle of this holo-like mechanism.

     

    Enrico

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