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Thread: My attempt at a carriage indicator clamp.

  1. #1
    Join Date
    Nov 2001
    Location
    SE Cheesehead land, WI
    Posts
    562

    Default My attempt at a carriage indicator clamp.

    Doing internal blind hole threading for the first time last week- turned out great but I quickly realized that I need an indicator holder for the carriage movement!

    I had a mag base mount I used in the meantime, but that got me motivated to make something new.

    I didn't want to have to use wrenches for installing or moving the mount- especially from the underside of the clamp. I remember seeing a member's design here (Roy Andrews, credit to him) that I liked since it used a handle and pivot clamp.

    This is what Roy made (hope it's ok I'm showing his pic of his work):



    I modified that design a bit, and made my handle for it out of some ABS I had laying around.
    I was quite surprised at how rock-solid this mount is with just a little tightening on the handle:





    Goes on and off in an instant, and reposition easily- no tools required.
    I'm pretty happy with how it turned out, I had just enough of a scrap chunk to make this.
    I still want to add some grooves or something to the handle for better looks.
    Last edited by T.Hoffman; 08-25-2011 at 05:07 PM.

  2. #2
    Join Date
    Mar 2002
    Location
    webster, ma
    Posts
    824

    Default

    Not bad. I like the idea of not needing a wrench to attach it.
    gvasale

  3. #3
    Join Date
    Nov 2009
    Location
    Ontario
    Posts
    962

    Default

    Very nice.
    How did you cut the slot?
    Mike

    My Dad always said, "If you want people to do things for you on the farm, you have to buy a machine they can sit on that does most of the work."

  4. #4
    Join Date
    Apr 2007
    Location
    Sacramento, CA
    Posts
    76

    Default

    Wow that looks nice with very clean details.
    You could make it so you can interchange a micrometer head for the DI by boring the hole where the DI barrel attaches a little larger and making a split sleeve for the smaller DI barrel. Then you can cut a series of precisely spaced shoulders with great accuracy and fast, but then you might want to add a cam lock where the SHC is to make the change from DI to micrometer head a tool-less change.

  5. #5
    Join Date
    Feb 2008
    Location
    Ashcroft, British Columbia
    Posts
    942

    Default

    very nice and you can use it without the DTI as a carriage stop for cutting to a shoulder or boring to a specific depth.
    Ernie (VE7ERN)

    May the wind be always at your back

  6. #6
    Join Date
    Oct 2002
    Location
    Bremerton Washington
    Posts
    4,956

    Default

    Ive seen a lot of indicator stops but that has to be the simplest to set I've sever seen. Puts the indicator right out where you can see it.

    Did you use a handle off an angle grinder to tighten the clamp?

  7. #7
    Join Date
    Nov 2001
    Location
    SE Cheesehead land, WI
    Posts
    562

    Default

    I used a slitting saw with R8 arbor for the slot, .035". I only have three blades for it, .035 being the thickest and largest diameter. I went in as far as I could with that blade- I would have liked to go in .100" further to make the clamping force even easier around the indicator barrel, but it works fine as is.

    Right now I don't have a micrometer head (lots of things I don't have yet), but I guess that option to add it in is always there down the road....

    The handle isn't from an angle grinder, but that would sure work just fine.
    Roy's handle might be from something like an angle grinder in the first picture I posted of his work, that looks more like a production handle part.
    The handle I made is just some 1" ABS that I bored down the inside, leaving around .200" at the far end, and then threaded the remainder to put a 1.5" 1/4-20 button head bolt in.
    I epoxied the bolt and threads to the ABS when I installed it. After letting the epoxy cure I ground down the end threads to my desired final length of exposed bolt.

    I made the bottom "lip" that provides the upward clamping force so that when it is tightened up on the ways of my lathe, the lip is centered in the middle of the V-way width above it.
    I'm not sure if that is why the clamp is so secure with just a little tightening of the handle, but it works great.







    Last edited by T.Hoffman; 08-25-2011 at 05:11 PM.

  8. #8
    Join Date
    Apr 2003
    Location
    New Hampshire
    Posts
    216

    Default

    like the kids say .... "dude,that is cool!"

  9. #9
    Join Date
    Aug 2009
    Location
    Canada, Bc
    Posts
    7,556

    Default

    Very nice, Do you find the handle getting in your way at all? I think I would of been tempted to make it a pivot handle.
    Sorta like this:
    http://www.practicalmachinist.com/vb...visehandle.jpg

    Just so it would fold down/outta the way when not in use.

  10. #10
    Join Date
    Aug 2008
    Location
    Missouri, USA
    Posts
    1,332

    Thumbs up

    Beautiful job T.H.

    What is the material?


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