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  • Dividing plate query...

    Hi all, just a quickie,

    when using dividing plates, do you count the hole that the pin is in or is it x amount of clear hloes?

    In other words, if the formula says 3 turns plus 7 holes, is it 7 holes or 8 holes between the sector arms?

    Many thanks

    Dave
    If it does'nt fit, hit it.
    https://ddmetalproducts.co.uk
    http://www.davekearley.co.uk

  • #2
    three complete turns from the hole you started in, ending at that same hole, and then count seven holes after.

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    • #3
      ... or count the spaces between holes and stop at the hole after the last space if that makes more sense to you.
      .
      "People will occasionally stumble over the truth, but most of the time they will pick themselves up and carry on" : Winston Churchill

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      • #4
        Ok, thanks
        If it does'nt fit, hit it.
        https://ddmetalproducts.co.uk
        http://www.davekearley.co.uk

        Comment


        • #5
          The hole the pin is in is the origin for the next index move. Therefore its numerical value for counting is zero. The next hole is one etc and the last is the number you are counting to. Actually you're counting spaces but the traditional way of referencing is X turns and Y holes. .
          Last edited by Forrest Addy; 07-19-2009, 04:42 PM.

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          • #6
            DO not count where you are ,But where you are going . Because you are all ready some where . So to move further you must go to the next hole and start counting.1-2-3 and so on. Like stepping off a distance . You first step is 1 then 2 .
            Every Mans Work Is A Portrait of Him Self
            http://sites.google.com/site/machinistsite/TWO-BUDDIES
            http://s178.photobucket.com/user/lan...?sort=3&page=1

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            • #7
              Why didn't someone tell me this before I made an Alfa Romeo half shaft with 41-1/2 splines?

              When I told the guy I learnt some new words that day.

              He then made a new shaft and sent it away to this super duper high priced company who I was told was better then me and they did the same !!!

              .
              .

              Sir John , Earl of Bligeport & Sudspumpwater. MBE [ Motor Bike Engineer ] Nottingham England.



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              • #8
                That should be no problem. Just cut 41-1/2 splines in the mating piece.
                I'm surprised at you John, for not figuring that out!
                Lynn (Huntsville, AL)

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                • #9
                  I think I'll put my divider plates back in the box.... Surely I can put an LCD and PIC chip on the damn thiing...

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                  • #10
                    Indexing arm spacing

                    Originally posted by Davek0974
                    Hi all, just a quickie,

                    when using dividing plates, do you count the hole that the pin is in or is it x amount of clear hloes?

                    In other words, if the formula says 3 turns plus 7 holes, is it 7 holes or 8 holes between the sector arms?

                    Many thanks

                    Dave
                    Dave,

                    I've just seen this post or else I'd have answered it sooner - sorry.

                    Counting the holes is like measuring on a rule.

                    The start point (where you are at) is "zero" and where you want or need to be is 7 holes further on.

                    In your case, if the hole you start from is say the left one, bring the left indexing arm up to it, hold it steady and bring the right indexing arm up to the right side of the 7th. hole further on.

                    Your arms will span eight holes but with the "pin" in the left one, you will only be able to move seven holes clock-wise.

                    It seems to be a convoluted explanation - but try it and you will soon "see" it.

                    The important thing is that the worm turns 7/40 of a turn for the 7 holes that you move the handle between the indexing arms.

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                    • #11
                      It all makes perfect sense now, many thanks for the helpful answers.

                      Just in case anyones interested, i've grafted the dividing plate set from my cheap 6" table onto my overweight 12" table in preparation to cut some large gears.


                      Heres the bits..

                      Part B slides over the collar and holds the plates, Part A screws onto the shaft stub and is secured by screw C, this holds the arm and plunger.

                      It all works very well together.

                      Dave
                      Last edited by Davek0974; 07-20-2009, 04:03 AM.
                      If it does'nt fit, hit it.
                      https://ddmetalproducts.co.uk
                      http://www.davekearley.co.uk

                      Comment

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