• Welcome to Dental Lab Network
    1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

    Imes Icore 250i crowns too thick and weird occlusion

    Discussion in 'Dental-CAM' started by drstranger, Dec 6, 2017.

    1. drstranger

      drstranger New Member Full Member

      Joined:
      Sep 2017
      Messages:
      7
      Likes Received:
      0
      Hi,
      I am just setting up my Imes Icore 250i machine and since i moved it from one place to the other i have weirdly deep lines in the occlusion. I noticed that the crown are way too thick as well.
      A coping I milled was supposed to be 0.3-0.4mm thick, but the milled coping is in some parts 1.3mm thick(occlusally) and 0.5-0.6 from the sides.
      What could be wrong? I am using SUM3D for the calculation.

      Cheers
       
    2. 2000markpeters

      2000markpeters Active Member Full Member

      Joined:
      Feb 2013
      Messages:
      199
      Likes Received:
      39
      Location:
      Toronto, Canada
      Calibration may have gone off during the move. Re calibrate
       
    3. hdlc

      hdlc New Member Full Member

      Joined:
      May 2013
      Messages:
      29
      Likes Received:
      4
      Location:
      Auckland, New Zealand
      Do the Zero point and B- axis calibration as well. You can use the milling wax to do that, it works just fine.
       
    4. JMN
      Curious

      JMN Christian Member Donator Full Member

      Joined:
      Sep 2012
      Messages:
      6,311
      Likes Received:
      1,325
      Location:
      In a surprisingly solid sea of electrons
      Dude, you need to put that on t shirts and sell them in Florida
       
      • Creative Creative x 1
    5. 2thm8kr
      Devilish

      2thm8kr Beanosavedmysociallife Full Member

      Joined:
      Dec 2009
      Messages:
      8,729
      Likes Received:
      2,302
      Location:
      Suburbs of Hades
      Funny from someone in Appalachia.
       
      • Like Like x 2
    6. JMN
      Curious

      JMN Christian Member Donator Full Member

      Joined:
      Sep 2012
      Messages:
      6,311
      Likes Received:
      1,325
      Location:
      In a surprisingly solid sea of electrons
      Denture techs don't get creases, we get characterized.
       
      • Agree Agree x 1
    7. 2thm8kr
      Devilish

      2thm8kr Beanosavedmysociallife Full Member

      Joined:
      Dec 2009
      Messages:
      8,729
      Likes Received:
      2,302
      Location:
      Suburbs of Hades
      I was thinking 'weirdly deep lines' as in genetics.

      v3SmjzO.jpg
       
    8. JMN
      Curious

      JMN Christian Member Donator Full Member

      Joined:
      Sep 2012
      Messages:
      6,311
      Likes Received:
      1,325
      Location:
      In a surprisingly solid sea of electrons
      A few decades ago in a nearby county courthouse:
      Joshua "lyin' Josh" Mullins was on the opposite side of a dispute from Joshua "honest Josh" Mullins, who's side lost.
      Can't make this stuff up and be believed, only reality gets this weird.
       
    9. drstranger

      drstranger New Member Full Member

      Joined:
      Sep 2017
      Messages:
      7
      Likes Received:
      0
      I have done the calibration a few times now. The problem still there.
      It looks like the whole upper part of the crown has not milled deep enough.
       
    10. JMN
      Curious

      JMN Christian Member Donator Full Member

      Joined:
      Sep 2012
      Messages:
      6,311
      Likes Received:
      1,325
      Location:
      In a surprisingly solid sea of electrons
      Is it usiing all the tools it should?, or skipping one?
       
    11. cadfan
      Amused

      cadfan Well-Known Member Full Member

      Joined:
      Jul 2013
      Messages:
      1,302
      Likes Received:
      196
      Location:
      Germany
      Which accuracy has your cal lipper for calibration check less than 10 micron repeatability ??
      Run a simulation and check you can although run residual simulation or upload the cam file
       
    12. drstranger

      drstranger New Member Full Member

      Joined:
      Sep 2017
      Messages:
      7
      Likes Received:
      0
      Hi, I've got this cheap standard metal caliper at the moment, but i will get a more accurate one in a few days.
      I had the same problems with the last few crowns. Exocad shows a 0.2 thickness and in reality it is 0.6.
      I will upload the cam file after this weekend, I am very busy at the moment.
      Another thing I noticed is that in SUM3D in the tool archive the 6mm ZR tool has a diameter of 3mm. Is that normal?
       
    13. user name
      Question

      user name Well-Known Member Donator Full Member

      Joined:
      May 2010
      Messages:
      4,634
      Likes Received:
      1,261
      I don't know Sum3D, but your thickness thing..

      Are you designing something .2mm thick? That's pushing it too far. Im guessing when you click on to finish its enforcing minimum thickness. Check your settings in DB.
       
      • Like Like x 1
    14. 2thm8kr
      Devilish

      2thm8kr Beanosavedmysociallife Full Member

      Joined:
      Dec 2009
      Messages:
      8,729
      Likes Received:
      2,302
      Location:
      Suburbs of Hades
      The radius of a 6mm tool is 3mm.
       
      • Like Like x 2
    15. drstranger

      drstranger New Member Full Member

      Joined:
      Sep 2017
      Messages:
      7
      Likes Received:
      0
      I have just designed it with 0.2mm for a test. When I designed it with 0.5mm it was 1mm thick.
      Yesterday I milled two emax anterior crowns, which looked like teeth from a rabbit, they were way too high. I had to grind it two millimeters down.
      The crown bottoms fit perfectly, just the length is odd.
       
    16. JMN
      Curious

      JMN Christian Member Donator Full Member

      Joined:
      Sep 2012
      Messages:
      6,311
      Likes Received:
      1,325
      Location:
      In a surprisingly solid sea of electrons
      Gonna sound like a jerk, but... Not all pucks are symmetrical, so are they going in the holder with the correct side up

      Just wondering if you did a hard 15 minute power cycle on it after getting everything plugged in at the new place. Weirder things have happened.
       

    Share This Page