Dti questions

  1. Kram

    Kram Member

    Messages:
    584
    Location:
    Sussex
    Recently got a lever type DTI, never used one before, only dial gauges. It is a Mitutoyo 513-205F

    1) was under the impression the lever should rotate with gentle pressure. Only a light friction fit to the pointer mechanism.This doesnt rotate, and not so easy to get body in correct position for bores. Is there a trick to get it to move?

    2) It has dovetails and a shaft for mounting on the back. The shaft does not unscrew or appear removable, yet also has dovetails on the back face. The dovetail would be more useful, if it does come out?
     
  2. zx9

    zx9 Member

    Messages:
    3,456
    Location:
    South East London
    I don't know about the first point but the second.

    I expect that the shaft screws in to a female dovetail locking it to the male dovetail on the back of the indicator.
     
  3. jordhandson Member

    Messages:
    507
    Location:
    Dorset
    I have also acquired the lever type it take a bit of getting used to I still prefer and normally grab the normal dti's mine only goes back and forth not round at the pointer and the dovetail fitting is for the stand to clamp onto
     
  4. Hood

    Hood Forum Supporter

    Messages:
    9,263
    Location:
    Carnoustie, Scotland
    By rotating I presume you mean angle the stylus up or down, if so then all the ones I have seen work that way.

    Regarding the shaft mount, the pdf seems to show two variants depending on the age.
    Older one.

    ScreenHunter_3382 Dec. 02 20.40.jpg

    Newer one

    ScreenHunter_3383 Dec. 02 20.41.jpg


    Both types seem removable
     
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  5. zx9

    zx9 Member

    Messages:
    3,456
    Location:
    South East London
    It was 26 and 27 in the last drawing that I was trying to explain.
     
  6. mtt.tr

    mtt.tr Member

    Messages:
    1,123
    Essex England
    What make is it? I've never had one not move!
     
  7. Hood

    Hood Forum Supporter

    Messages:
    9,263
    Location:
    Carnoustie, Scotland

     
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  8. Kram

    Kram Member

    Messages:
    584
    Location:
    Sussex
    Part 10 on the first and 13 on the second, does appear to be threaded, I will try again to unscrew. Thanks for the drawings, I dont know which I have. www.ebay.co.uk/itm/283647983321

    Any idea if the stylus should rotate past the travel of the needle? I dont want to damage it.
     
  9. mtt.tr

    mtt.tr Member

    Messages:
    1,123
    Essex England

    Im a bit lost, Normally you just push or pull the stylus at the end of its travel it readjusts
     
  10. earthman Member

    Messages:
    935
    If it needs stripping down/fixing, doubleboost is the man, well his mate Bob.:)
     
  11. RichardM Member

  12. jordhandson Member

    Messages:
    507
    Location:
    Dorset
    same as mine the pointer wont rotate it will only move forward or backward a few mm
     
  13. jordhandson Member

    Messages:
    507
    Location:
    Dorset
    Kram I have just looked at the one you bought on ebay its missing the part that slides on the dovetail either the front or the rear,see if you can get one as it will make it easier to use.

    dti dovetail part.jpg
     
  14. Brad93

    Brad93 M J B Engineering

    Messages:
    6,072
    Location:
    Essex
    Starrett do an attachment that makes indicating bores really easy.
     
  15. Brad93

    Brad93 M J B Engineering

    Messages:
    6,072
    Location:
    Essex
    Here
     
    • 625B9D9B-364F-482F-95C2-3AE0501E48B4.png
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  16. eLuSiVeMiTe

    eLuSiVeMiTe Forum Supporter

    Messages:
    8,964
    Location:
    Bedfordshire England
    Got one somewhere. Haven't actually used it yet
     
  17. Pete.

    Pete. Member

    Messages:
    8,355
    Location:
    Kent, UK
    I have one of those too.

    As for the lever - just get hold of it and wrench it into the position you want. Mine takes quite a bit of effort (relatively) though the working action is very light. The pivot bar inside has chunky stops on it so you're not levering against the delicate mechanism so no fear of wrecking it.
     
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