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  • Author Author: luislabmo
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Hologram Pi-ramid - 3D printed parts and initial assembly

luislabmo

Once I was happy with all necessary the details in my project design, I started 3d-printing all the parts required to begin testing the assembly which overall is looking really good!.

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3-D Print settings

Below the settings used:

  • Printer: Creality CR-10S -a big thanks to Element14 for this awesome price!
  • Material: PLA Blue-denim
  • Infill: 15%, triangles
  • Adhesion: Brim
  • Supports: No
  • Layer height: 0.2mm

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Assembly and materials required

It didn't make much sense to me to incorporate snap-fit features to the general assembly since the overall structure will have to support the weight of the RPi + Touchscreen mainly. Also I would most likely be assembling/disassembling several times the project while it evolves. With all of the above in mind, it made sense to add holes for screws to the project -which require to be tapped as threads that small are hard to replicate in a 3d printed part. Below the list of screws I will be using to assemble the project:

 

  • 2 x #2 x 3/8" Slotted Round Head Screws
  • 6 x #5-40 x 3/8" Socket Head Cap Screws
  • 2 x #6-32 x 2" Socket Head Cap Screws

 

{gallery:width=960,height=768,autoplay=false} Hologram Pi-ramid - Initial assembly

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Hologram Pi-ramid hardware: #2 x 3/8" and #6-32 x 2" screws

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Hologram Pi-ramid hardware: #5-40 x 3/8" screws

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Hologram Pi-ramid: Some tools needed for the 3d printed parts assembly

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Hologram Pi-ramid: Tapping #5-40 holes with a 3d printed tap wrench

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Hologram Pi-ramid: Tapped holes #5-40

 

 

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!

 

 

 

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3D CAD/CAM design

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Plexiglass Pyramid

Parents

  • Solid looking work there.  I see that you are using 15% infill, do you have any issues when it comes to tapping the threads?

     

    Good luck on your future developments on this design challenge.

     

    Gene

  • in reply to genebren

    Hello Gene, thank you for your kind comments!. I don’t have any issues when tapping the holes as I include them in the design with the right size (diameter and depth). They will have enough material to be removed when tapping -the amount of material should be the wall thickness which is 0.8mm in my current settings.

     

    if you look closely at the second picture of the assembly, the part on the left is tapped but the one on the right isn’t.

    image

     

    Hope this answers your question.

     

    Luis

Comment
  • in reply to genebren

    Hello Gene, thank you for your kind comments!. I don’t have any issues when tapping the holes as I include them in the design with the right size (diameter and depth). They will have enough material to be removed when tapping -the amount of material should be the wall thickness which is 0.8mm in my current settings.

     

    if you look closely at the second picture of the assembly, the part on the left is tapped but the one on the right isn’t.

    image

     

    Hope this answers your question.

     

    Luis

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