Dial indicators
Close
Login to Your Account
Likes Likes:  0
Results 1 to 9 of 9

Thread: Dial indicators

  1. #1
    Join Date
    Jan 2020
    Country
    UNITED STATES
    State/Province
    Georgia
    Posts
    2
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Default Dial indicators

    I’ve fairly new to machining ( less than two years experience)

    I really struggle with using dial indicators on round parts ( finding the OD, ID of a circle )

    Was wondering if anybody had any tips or videos I could maybe use to improve my ability to use it!
    Thanks again

  2. #2
    Join Date
    Jan 2020
    Country
    UNITED STATES
    State/Province
    Georgia
    Posts
    2
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Default

    It’s more finding the x0. Y0. That I struggle with when doing bolt hole patterns , counter bore etc.

  3. #3
    Join Date
    Jun 2012
    Country
    UNITED STATES
    State/Province
    Michigan
    Posts
    10,210
    Post Thanks / Like
    Likes (Given)
    3462
    Likes (Received)
    3646

    Default

    You can get point sets.
    Dial Indicator Tips | Dial Indicator Point Set - LittleMachineShop.com

    Sometimes a test indicator is good, but thy don't tell true travel.

  4. #4
    Join Date
    Jan 2017
    Country
    UNITED STATES
    State/Province
    Oregon
    Posts
    2,777
    Post Thanks / Like
    Likes (Given)
    491
    Likes (Received)
    1977

    Default

    Quote Originally Posted by Rod10290 View Post
    It’s more finding the x0. Y0. That I struggle with when doing bolt hole patterns , counter bore etc.
    Just practice. Bring your indicator down to just above the part, and sweep it around. Make your big adjustments. Then bring it down, do X first. Zero the dial on the first side, rotate 180 degrees and read the dial. Move X axis 1/2 the amount. This is center X. Rotate the spindle 90 degrees. Now adjust Y axis until the indicator reads the same number. That should be center Y.

    Now sweep 360 degrees and check all around the circle. You should be within .001".

  5. #5
    Join Date
    May 2019
    Country
    UNITED STATES
    State/Province
    Pennsylvania
    Posts
    575
    Post Thanks / Like
    Likes (Given)
    150
    Likes (Received)
    223

    Default

    Only pay attention to X-,X+,Z-,Z+. If the hole is round everything else will take care of itself. Just like indicating a 4 jaw.

  6. #6
    Join Date
    May 2008
    Country
    SOUTH AFRICA
    Posts
    1,627
    Post Thanks / Like
    Likes (Given)
    1191
    Likes (Received)
    667

    Default

    The easiest is to work on only two points at first and then 3. So either the two X's or the two Y's. Then dial in any other oposing X or Y. It will tell you pretty quickly how round the "circle" is.

    I made a few of these similar to this for a "finger clock" as we call it here. https://www.mscdirect.com/product/details/01386168

  7. #7
    Join Date
    Aug 2018
    Country
    UNITED STATES
    State/Province
    Pennsylvania
    Posts
    2
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Default

    Here's a couple of videos that show indicating a hole.


    YouTube

    YouTube

  8. #8
    Join Date
    Aug 2006
    Location
    Wisconsin
    Posts
    1,649
    Post Thanks / Like
    Likes (Given)
    741
    Likes (Received)
    739

  9. #9
    Join Date
    Nov 2013
    Country
    UNITED STATES
    State/Province
    Utah
    Posts
    4,675
    Post Thanks / Like
    Likes (Given)
    1240
    Likes (Received)
    2619

    Default

    Quote Originally Posted by Hardplates View Post
    Only pay attention to X-,X+,Z-,Z+. If the hole is round everything else will take care of itself. Just like indicating a 4 jaw.
    Actually assuming the hole is Round, you really only need X+X- and Y-. Three sides to see.


Tags for this Thread

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
  •