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   rec.crafts.metalworking      Metal working and metallurgy      215,319 messages   

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   Message 213,511 of 215,319   
   Snag to Bob La Londe   
   Re: Inside micrometer   
   08 Jul 24 21:29:49   
   
   From: Snag_one@msn.com   
      
   On 7/8/2024 7:15 PM, Bob La Londe wrote:   
   > On 7/8/2024 11:08 AM, Snag wrote:   
   >> On 7/8/2024 12:41 PM, Snag wrote:   
   >>>    I scored an older unit complete with all the rods ...but they are   
   >>> not set correctly . The 1.5-2.5" is off by about .009" short of 1.5   
   >>> when the thimble is zeroed . Looking into the end that goes into the   
   >>> head I see a setscrew . I think this is used to set the rod length   
   >>> but I want to be sure of procedure before I go reefing on it . The   
   >>> other question I have is about the "extended" setting . The head only   
   >>> has .500 of travel and there are 2 setscrew dimples in the mounting   
   >>> sleeves . When in the "long" dimple it's about .050" short .  I   
   >>> suspect there must have been a .500 sleeve that set the proper length   
   >>> in the long position . Any help will be appreciated !   
   >>   
   >>    I guess I should have mentioned this is the Sherr-Tumico unit I   
   >> posted about last week .   
   >   
   >   
   > I wish I had something constructive to say... so instead I'll say this,   
   > "If you can make it give you useful readings it probably isn't wrong."   
   >   
   > Yesterday I drilled and tapped a mold for bolt on hinges.  (Shop made   
   > hinges) One hinge was 1/16 inch off on all three holes.  I put a washer   
   > in between, and not only does it work great, but it looks cool like a   
   > layered knife scale.   
   >   
   > After correction I reprinted my print and stuck it to the mill with a   
   > magnet.  Then I shipped the mold.  Now the print clearly shows a washer   
   > used as a spacer in the lower hinge.   
   >   
   >   
   >   
      
      There ya go , making lemonade again ! I've done a little poking   
   around , there is a .500" spacer missing . Length adjustment is going to   
   be easy , that is a setscrew in the sleeve . The rods are threaded so   
   all I need to do is figure how much and which way to adjust them . For   
   now I'm going to get the 2.5 - 3.5" rod set up so I can fit a couple of   
   cylinder sleeves . Gotta be pretty accurate on this one , the cast   
   aluminum (water cooled) cylinder block walls are kinda thin and I'm   
   afraid if I put too much interference on the fit I'll crack one . That   
   would be a Bad Thing .   
   --   
   Snag   
      Illegitimi non carborundum   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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