Exocad 2.2 and thick implant margins

Discussion in 'exocad' started by mill3d, Mar 12, 2018.

  1. mill3d

    mill3d Active Member

    Hi!

    I am not able to make an thin margin in new exocad build. I am making screw retained crowns where the hole is manually created. This problem was not in previous build. Now there is this yellow line all around the margin line that is away from the line and cant be dragged to the margin side. I actually have modified the crown after the finish in older exocad to get the grown correct on the line. How can I get rid of the problem? Most of my desining are screw retained and I am unable to use the software as needed. All the settings are the same as I copied all of them from the previous version.
     

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  2. 2thm8kr

    2thm8kr ɹotɐɹʇsıuıɯqA Staff Member

    Are your borders settings different in new version compared to older version?
     
  3. mill3d

    mill3d Active Member

    The settings are exactly the same.
     
  4. mgexo

    mgexo The other Wizard Staff Member

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  5. mill3d

    mill3d Active Member

    Files sent
     
  6. mgexo

    mgexo The other Wizard Staff Member

    We got the files, but cannot see different behavior compared to 2016 version with that scene .
    I would also doubt that its the right approach to have zero sized emergence profile design. Instead, move the emergence profile control point slightly upwards. Also you have a the ConstructionParam CrownBorderHorizontalSize configured to be at least 0.1 mm. Thats why you will always have a small ledge on the bottom . If you would want to get rid of that, you would need to change that to zero , but that is not recommended for many materials.
     
  7. mgexo

    mgexo The other Wizard Staff Member

    So, if you really think there is a difference with this case in new vs. old version with same parameters, please paste screenshots to compare the versions
     
  8. mill3d

    mill3d Active Member

    Yes there is a big difference. As I imported the same job to the older version, the file has been overwritten. I will do this comparisson with another job. If I drag the yellow line up, it makes the margin so thin, that it will be milled with chippings. That was never the case with previous version.
     
  9. mill3d

    mill3d Active Member

    So here is comparrison. I believe I dont have to tell which one is which. Also I have been using the same parameters from the beginning of my exocad using and this has never been a problem.
     

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  10. mgexo

    mgexo The other Wizard Staff Member

    Please also send that case for inspection (especially the .dentalCAD scene file ) to feedback@exocad.com using www.wetransfer.com ( make sure to write a reasonable message ).

    Summary what I can see on the screenshot:
    - Old software would allow you to violate the thickness in the boundary area but you see large surfaces in red of the violation.
    - New software enforces the minimum thickness at the boundary area.
     
  11. DMC

    DMC Scott Hudson

    You cannot use same parameter file (Material file) from old version of exocad. ( I think? )

    You need to start over again and create new version of material parameter file.

    We posted One new version on the forum already.

    Do you want to try it?
     
    Last edited: Mar 13, 2018
    cadfan likes this.
  12. mill3d

    mill3d Active Member

    The yellow margin is anything else than a minimum thickness. It is a 1 mm collar, that I dont want. If I push it higher, then it makes a margi so thin, that it can chip while milling. The red area will be filled as it respects the minimum thickness.
     
  13. mill3d

    mill3d Active Member

    Yes I would. If the old one does not work I need to built my own though as I have modified it heavily.
     
  14. mgexo

    mgexo The other Wizard Staff Member

    We cant help you without getting exactly that case ( again .dentalCAD scene file). Its only speculation otherwise.
     
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  15. cadfan

    cadfan Moderator Staff Member

    @mill3d go with MGEXO dont waist time hes the master brain.
     
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  16. mill3d

    mill3d Active Member

    Project sent. Also built the material parameter file from scratch and the result is the same.
     
    Last edited: Mar 14, 2018
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  17. mgexo

    mgexo The other Wizard Staff Member

    Thanks mill3d. That is what we needed.

    The current workaround is, to go to back to abutment bottom design and move emergence profile design higher. This allows you to have thinner margins at the bottom
     
  18. mill3d

    mill3d Active Member

    Yes, I am aware of that and doing it also, but it leaves collar that I dont want or need. The part where the collar ends and the crown starts cant be smoothed so that there is no line. As I understand there is no fix for that so it would be like in the previous version.
     
    texocad likes this.
  19. texocad

    texocad Well-Known Member

    I've seen that demarcation lone. My workaround for that is to use the freeform tools. Add/Remove >Remove to create emergence on the same plane as the bottoms, then Smooth. Results have been decent.
     
    Last edited: Mar 15, 2018
  20. mill3d

    mill3d Active Member

    The new version has it fixed!
     
    James, 2thm8kr, texocad and 1 other person like this.

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