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    Convert from ANY format into STL... It's possible !

    Discussion in 'Dental-CAD' started by zero_zero, Feb 14, 2017.

    1. zero_zero
      Drunk

      zero_zero Well-Known Member Full Member

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      Clickbait...lol :D Almost. The concept of 3D scanning and digitization has always been my interest, did some research into it, as got a pet project going for a while, making a diy scanner. Came across a video, a guy making a 3d object out of a bunch of pictures taken by a regular camera. It's all explained in detail here: https://tinyurl.com/hlcmrg2
      This gave me the idea of using a regular 3d view app (in fact it does work with any software, thus all formats) to virtually digitize the rendered content into a point cloud and subsequently an STL file. The idea is to open a file, take a look at it by rotating it around a few times, meanwhile a screen capture software snaps screenshots at regular intervals, I used 5fps and it worked.
      Started by opening up a tooth lib model with the regular 3d viewer, turned the wire frame visualization on to aid the 3d reconstruction software down the road as in most apps the lights are static and the shadows will change around as an object rotates which could throw the 3d rec. SW off... resulting in unnecessary noise.
      The screen capture resulted in about 120 cropped screenshots, in hindsight could've used higher zoom as it worked out to about only 0.4 megapixels for the virtual camera.
      4d.jpg

      The pictures were loaded into VisualSFM and processed.
      files1.jpeg

      The resulting point cloud was surprisingly noise free :)
      reconstructed point cloud.jpeg
      Used MeshLab to clean up the point cloud and turn it into a mesh:
      point cloud cleaned.jpeg
      meshed point clud.jpeg

      After exporting into an STL, the two files were compared...and here's the results :) There's some loss of detail given the low resolution (640x640 pixel) used, but overall is quite usable. Cons: is labor intensive and requires a few (free) apps to be used, original scaling is lost.
      result.jpeg
       
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    2. Sevan P
      Twisted

      Sevan P Well-Known Member Full Member

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      Crossmanager and Delcam exchange.

      Sent from my SM-G920V using Tapatalk
       
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    3. sidesh0wb0b
      Pensive

      sidesh0wb0b Well-Known Member Donator Full Member

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      you have waaaaaaaaaaaaaay too much time on your hands. go fishing or something!
       
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    4. zero_zero
      Drunk

      zero_zero Well-Known Member Full Member

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      Those only work with a very few types...forget proprietary formats...
      Been ice fishing last weekend...brookies were biting like crazy...;)
      brook trout.jpg
       
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    5. FullPartial

      FullPartial Member Full Member

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      [​IMG]
       
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    6. CoolHandLuke
      Fiendish

      CoolHandLuke Well-Known Member Full Member

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    7. JohnWilson

      JohnWilson Moderator Staff Member Full Member

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      It actually surprises me even encrypted or "protected" dcm files are easily converted with Crossmanager.
       
    8. zero_zero
      Drunk

      zero_zero Well-Known Member Full Member

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      Those are just the "obfuscated" kind...try some Trios output ;)
       
    9. JohnWilson

      JohnWilson Moderator Staff Member Full Member

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      Thats a big word that I do not know so the answer is probably no

      It does however allow me to take a Nobel produced abutment in 3shape and reverse it out so I can make a copy abutment in PMMA :)
       
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    10. Sevan P
      Twisted

      Sevan P Well-Known Member Full Member

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      I also found Delcam exchange to do encrypted files where crossmanager can not.

      Sent from my SM-G920V using Tapatalk
       
    11. Sevan P
      Twisted

      Sevan P Well-Known Member Full Member

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      Trios outputs straight out of the folder on the trios pc? Yeah that **** won't even load into 3shape 3d viewer.

      Sent from my SM-G920V using Tapatalk
       
    12. Gru
      No Mood

      Gru Well-Known Member Full Member

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      Anyone have a current version of an I/O cerec scan they can send me?
       
    13. Albert Smile Design

      Albert Smile Design New Member Full Member

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      Where did you catch the fish? Nice!!!!
       
    14. 2thm8kr
      Devilish

      2thm8kr Beanosavedmysociallife Full Member

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      Fish farm with a dip net.
       
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    15. Tayebdental
      Cheerful

      Tayebdental Tayeb S. CDT Donator Full Member

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    16. Sam-CAP
      Sunshine

      Sam-CAP Active Member Full Member

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      That tooth looks very familiar... Hmmmmm
       
    17. zero_zero
      Drunk

      zero_zero Well-Known Member Full Member

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      Just an overrated eye candy found on the net...;)
       
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