Results 1 to 6 of 6

Thread: Cylindricity circularity and concentricity

  1. #1
    Senior Member
    • Additional Information
      • Years CMM Experience:
      • 3+
      • Software Version:
      • pcd 2010 mr3
      • Machine Type:
      • B&S Global, SHEFFIELD something
      • Location:
      • Cincinnati OHIO
      • Job Function:
      • Quality Technician

    Join Date
    Jan 2009
    Location
    Cincinnati OHIO
    Posts
    115

    Default Cylindricity circularity and concentricity

    Am I assuming correctly that pcdmis uses Concentricity as the 14.5 equivilant of Circularity? To check a substitute for cylindricity I could measure circles along a cylinder, align to the constructed cylinder and report concentricity to each circle? This is probably an obvious question but its 2 am and its been a long day.
    Feed us-Fetus-Fajitas

  2. #2

    Default

    I think I will read the max. reading about concentricity.

  3. #3
    PC-DMIS demi-Guru
    • Additional Information
      • Years CMM Experience:
      • 20 minutes + 10 years
      • Software Version:
      • 2012mr1sp2
      • Machine Type:
      • B&S One 7-10-7, Mit B-311, Mit B-231
      • Location:
      • Punxsutawney, Pa - God's Country
      • Job Function:
      • Quality Tech - Engr Lab rat
    Lab_ratt's Avatar
    Join Date
    May 2008
    Location
    Punxsutawney, Pa - God's Country
    Posts
    1,287

    Default

    Quote Originally Posted by KaSaBiS View Post
    Am I assuming correctly that pcdmis uses Concentricity as the 14.5 equivilant of Circularity? To check a substitute for cylindricity I could measure circles along a cylinder, align to the constructed cylinder and report concentricity to each circle? This is probably an obvious question but its 2 am and its been a long day.
    apples VS oranges

    Circularity: by definition a 2 dimensional analysis of the deviation from the theoretical center of a circle

    Concentricity: by definition the deviation of 2 diametrically opposed points from the theoretical center of an axis

    Cylindricity: by definition a 3 dimensional analysis of the deviation of the form along the axis of a cylinder

    or you could measure a cylinder using multiple rows and click on the "FORM" box - depends on how critical the feature is. If it were hyper critical I would sweep the feature with a dial indicator. Disclaimer: These are merely suggestions to point you to alternative ways to depilate the feline.

    Quote Originally Posted by Ironhoe View Post
    I got something under my sporran for you, take care of it and you got my vote.

  4. #4
    PC-DMIS demi-Guru
    • Additional Information
      • Years CMM Experience:
      • 15
      • Software Version:
      • 2013
      • Machine Type:
      • Global Advantage 12-22-10
      • Location:
      • Northern Kentucky (51st state)
      • Job Function:
      • CMM Programmer ASQ-CMI, CQT, CQA

    Join Date
    May 2006
    Location
    Northern Kentucky (51st state)
    Posts
    1,146

    Default

    Well now this is one of those threads you guys are talking about. I get it now.

    Global Advantage 12-22-10
    TESASTAR M SP25 4.3mr2

  5. #5
    PC-DMIS demi-Guru
    • Additional Information
      • Years CMM Experience:
      • heard about this stuff this morning.
      • Software Version:
      • What is PC-DMIS?
      • Machine Type:
      • machinist rule
      • Location:
      • Mamma Hoedeman's basement with Ironman, eating chips and playing cribbage, he cheats.
      • Job Function:
      • keepin your mom happy
    Ironhoe's Avatar
    Join Date
    Oct 2008
    Location
    Mamma Hoedeman's basement with Ironman, eating chips and playing cribbage, he cheats.
    Posts
    1,848

    Default

    Quote Originally Posted by keego View Post
    Well now this is one of those threads you guys are talking about. I get it now.


    its systemic, total failure.

  6. #6
    Senior Member
    • Additional Information
      • Years CMM Experience:
      • 3+
      • Software Version:
      • pcd 2010 mr3
      • Machine Type:
      • B&S Global, SHEFFIELD something
      • Location:
      • Cincinnati OHIO
      • Job Function:
      • Quality Technician

    Join Date
    Jan 2009
    Location
    Cincinnati OHIO
    Posts
    115

    Default

    thanks dave. I wanted to make sure that pcdmis was calling circularity roundness. and keego, keep in mind that some people learn when they ask questions. Its actually a good method to gain knowledge and understanding.
    Last edited by KaSaBiS; 04-22-2010 at 01:54 AM.
    Feed us-Fetus-Fajitas

Similar Threads

  1. Replies: 28
    Last Post: 02-16-2010, 12:37 PM
  2. How to report Cylindricity?
    By Gary McElwain in forum PC-DMIS for CMMs
    Replies: 5
    Last Post: 12-12-2007, 11:07 AM
  3. Cylindricity Question
    By John Kugler in forum PC-DMIS for CMMs
    Replies: 3
    Last Post: 02-27-2007, 09:31 PM
  4. cylindricity
    By Ken379128 in forum PC-DMIS for CMMs
    Replies: 3
    Last Post: 10-19-2006, 01:34 PM
  5. Cylindricity and roundness
    By JamesMannes in forum PC-DMIS for CMMs
    Replies: 2
    Last Post: 08-28-2006, 11:58 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •