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    Identica Blue VS Degree of Freedom Scanners?

    Discussion in 'Dental-CAD' started by Nu Technologies, Feb 6, 2015.

    ?
    1. Identica Blue

      36 vote(s)
      52.9%
    2. Degree of Freedom

      32 vote(s)
      47.1%
    1. Glenn Kennedy
      Breezy

      Glenn Kennedy Well-Known Member Donator Full Member

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      ZZ here are the same images in a horizontal configuration. The artifact looks like it came from scaling or resolution changes between the horizontal layout and the vertical layout. If an image is modified in Photoshop then it is very likely all imperfections would be removed.
      SoftEdges_Short_Margins.png
       
    2. PDC

      PDC Active Member Full Member

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    3. alphadental

      alphadental Member Full Member

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      same die scanned with
      OPT BATCH_-test_DentalCadScreenshot.png

      and Identica light
      BATCH_-test_DentalCadScreenshot.png
       
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    4. Henry Park

      Henry Park Member Full Member

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      @Glenn,
      Can you upload two STL files? Maybe people in this forum can find it if there was any modification from scan data.
       
    5. PDC

      PDC Active Member Full Member

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      Henry, it's great to have someone of your technical expertise respond on this forum. For those of us who might be shopping for a scanner that can capture a high resolution image such as some shown in this thread, what is the single most important feature in the build of a scanner to achieve this?

      Thanks again for your input.
       
    6. Glenn Kennedy
      Breezy

      Glenn Kennedy Well-Known Member Donator Full Member

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      Good idea Henry. I will request the files.
       
    7. Henry Park

      Henry Park Member Full Member

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      Thank you for welcoming me, PDC.
      There are some points to consider when you choose a good scanner. Maybe they are resolution(data sharpness), accuracy, cleanness, easy of use, price, support and so on.

      The resolution depends on the point spacing and the point spacing is calculated by the ratio between number of camera pixels and scan area. If you have high resolution camera with small scanning area, you will get the best point spacing. The best means the shortest point-to-point distance.
      And normally dental scanners have similar scanning area because they are scanning a full arch model in ONE scan shot.
      So I think the single most important feature for high resolution is the camera resolution to take 3D data (NOT the camera for color texture).

      BUT I want to talk about some exceptions.
      Some of scanners use high resolution cameras for good specifications and do big smoothing on the data, because they could not get clean 3D data. So they apply a lot of smoothing for making the data clean. During this smoothing process, it looses sharpness but keep high resolution.
      The other exception is that some good scanners have smaller scanning area. For example old Lava scanner uses less than 1 mega pixel camera but it can get very sharp data, because it has small scanning area. Their scanning area is much smaller than current normal dental desktop scanners.
      And normally intra-oral scanners have good sharpness with lower resolution camera because of their scanning area is very small.

      I know my opinion is not 100% correct. If there are something wrong, please correct me.
      Thank you and have a great holiday.
       
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    8. Gru
      No Mood

      Gru Well-Known Member Full Member

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      Alright! So here's what I'd like to suggest: We need an object with some sharp edges, some undercuts, yada, yada, yada, to scan the exact same object by the different scanners- maybe by 2 or more of each with calibration done immediately before the scan. I'm thinking a scan body or duplicate of an implant in stone. Anyone who is interested can PM me contact info and we'll ship the thing around for a month, then post pics. While I recognize that eventually it's all about output, this experiment interests me. Anyone?
       
      • Agree Agree x 1
    9. 2thm8kr
      Devilish

      2thm8kr Beanosavedmysociallife Full Member

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      I have an implant model for scanning. 4 analogs in a base of stone. The abutments are torqued and have epoxy over the screws.
      It intentionally has some difficult areas to scan. Waiting on Zero to return from the winter hideout, I will send to him for scanning.
      I haven't contacted Alphadental yet, but I'm sure he's a gamer and will scan with OT scanner. Love to get someone with an iMetric
      to scan the same model.
       
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    10. zero_zero
      Drunk

      zero_zero Well-Known Member Full Member

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      I will be back on the 9th...still in holiday mode...:)

      [​IMG]
       
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    11. Gru
      No Mood

      Gru Well-Known Member Full Member

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      Sure. Rub it in. My FL trip is over and you're still a bum! How'd you manage an extra week? Nice!
       
    12. zero_zero
      Drunk

      zero_zero Well-Known Member Full Member

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      I work extra hard to make it happen, by keeping close relations with our accounts...sure might loose some rush work during this week, but competitors gotta eat too...
       
    13. PDC

      PDC Active Member Full Member

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      Have the games begun yet? Boxing
       
    14. 2thm8kr
      Devilish

      2thm8kr Beanosavedmysociallife Full Member

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      Waiting to give Zero some time to get things in order after playing at the winter hide out.Vollkommenauf
       
    15. zero_zero
      Drunk

      zero_zero Well-Known Member Full Member

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      Yup, totally forgot about it...send it my way 2th... :)

      Also anybody willing to participate with their own hardware to find out which rig makes the best scans out there, please get in touch with us. Will be totally objective w/o bias, scans downloadable here for anyone to check and judge...will even twist @Travis 's arm to turn that thread into a sticky ;)
       
    16. PDC

      PDC Active Member Full Member

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      If possible, why don't we include scanning times with this little experiment.
       
    17. zero_zero
      Drunk

      zero_zero Well-Known Member Full Member

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      Yes we could certainly include the scanning/processing times as a bonus, however we should judge by the output STL
       
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    18. Henry Park

      Henry Park Member Full Member

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      Abutments scanning by DOF Freedom HD. Don't worry about undercuts.

      undercut3.PNG
      undercut2.PNG
       
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    19. Sda36

      Sda36 Member Full Member

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      Nice Henry
       
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    20. 2thm8kr
      Devilish

      2thm8kr Beanosavedmysociallife Full Member

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      Solid test model scan no separate abutment scan.:android:
      DOF scan3.png
       
      • Winner Winner x 2

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