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  • The eagle has landed.

    Or at least two containers of goodies from China.
    Most are stock items but I do get to pick over some of the samples that get sent.

    Anyway came back tonight clutching three small wooden boxes in my hot sticky little mitts.

    Box 1 contained a Z axis tool presetter, Used for touching off tools in a toolchanger on a CNC, interesting but need time to play with it.

    Box 2 contained one of the newer Blake type indicators that are low profile.
    Put to one side to have a play later.

    Box 3 contained this:-



    It's called a 3D Taster, I thought it might be a miss print and be a 3D TEster but no a search on Ebay shows they are called 3D Tasters unless everyone including the Germans, can't spell.

    Basically it's a finger type dial gauge but it works in all three axis and at the same time.

    Looks neat so time for a play.

    First thing, try the new co-ax out first. Stick a piece of machined tube in the chuck bolted to the bed of the Bridgy and center up by eye. Run the co-ax at about 100 rpm and adjust both axis to get the error out and zero the DRO.
    Reasonably quick and being shorter it wasn't as much of a pain as the longer copy I built.

    So now according to form the DRO is bang on.

    Now stick the 3D unit in the collet. You leave these just as installed, you don't run the spindle or need to.

    So it I touch off on both sides of the tube the DRO should read the same ?

    No, I get an error and it reads 31.186mm one way and 31.192 the other way.
    So touch off on one side and zero the DRO touch off on the other and it reads 62.378mm, halve this and I get 31.189mm

    Do the same operation in the Y and again split the reading.

    Now wind clear, wind up the bed and then go back to 0,0 and touch off.

    Every quadrant reads 31.189mm repeatably.

    Run along the vise jaws which were clocked in using a 0.001" gauge and I get the same reading both ends but a 0.02 mm bow in the center.

    Run along the top of the vise jaws, something I have never checked before and it's a whopping 0.04 taper from one end to the other.

    All this at the same setting, facing forward and checking X Y and Z.

    Dead impressed with this, so easy to use and the accuracy beats anything else that's as easy to setup.

    I need to make a toolpost mount so I can hold it on center pointing forward to set up motor end shields in the 4jaw which need to run true axially as well as vertically.

    Only thing I can see wrong with this is this one has a 20mm spigot for holding, the German ones have a more useful 12mm size.

    Need to speak nicely to the Chinese to come up with a smaller spigot.

    .
    .

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




  • #2
    John, Why is the pointer pointing down in the never never land
    rather and at "0" ?
    ...lew...

    Comment


    • #3
      You deflect the probe on the bottom until the indicator needle is on zero. That's how you know it's moved to center.
      Jonathan P.

      Comment


      • #4
        I have always wanted one of these. You are my hero just for having one.

        Things like this make changing Z offsets on CNC controls ridiculously easy. Actually, just setup on CNC in general.

        Comment


        • #5
          I'll tell you what, it's damn quick finding the edge of a piece of work.

          You move the table and watch the needle until it's on zero and then add 1/2 the ball diameter, in this case 4mm so zero the readout then add 2mm.

          Then move to the next edge and do the same.

          Where it scores over a wiggler is you can see how close you are and if you overshoot you can see how much to back off and aproch again.

          Once you get used to one it's usually a one shot move and quite quickly at that.

          I reckon I can do two edges in the time it took me to do one edge with the wiggler.

          .
          .

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



          Comment


          • #6
            Originally posted by John Stevenson
            I'll tell you what, it's damn quick finding the edge of a piece of work.
            Awww man! now its just something else i need to add to the shopping list!!!, always wondered how good those things were. now that really would be faster than a coax...which still hasn't arrived

            Comment


            • #7
              Okay,now how much?
              I just need one more tool,just one!

              Comment


              • #8
                Brand new they run about five hundred. Or more, if you get a good brand.

                Comment


                • #9
                  Taster time

                  Hi John,
                  I do think you will like the taster I sure like mine. Two things though, I'm pretty sure you don't need to add or subtract the ball dia. at least I don't need to on my german made one when the needle is at zero you are at spindle center line for that axis and the germans told me the taster means gauge in germany so that then made sense also. Have fun James Helmuth

                  Comment


                  • #10
                    John,

                    Just on why it's called a 'taster' - it's from the German word 'tasten' which means to feel or touch.

                    I just knew you were a touchy, feely kind of guy...

                    Ian
                    All of the gear, no idea...

                    Comment


                    • #11
                      Originally posted by jh
                      Hi John,
                      I do think you will like the taster I sure like mine. Two things though, I'm pretty sure you don't need to add or subtract the ball dia. at least I don't need to on my german made one when the needle is at zero you are at spindle center line for that axis and the germans told me the taster means gauge in germany so that then made sense also. Have fun James Helmuth
                      James,
                      You are right that you don't have to subtract the ball diameter when doing bores or pockets as they equal out.

                      I was talking about subtracting the ball diameter [ or half of it ] when finding an edge, just as you do with a wiggler but I must admit I was typing this sat in the house and not actually trying this so I see where you are going.

                      Need to actually try this but if it is so I I do believe you are right, [ see YOD I do get my knickers in a twist ] it will be even easier.

                      Whooeee.

                      No idea on cost as yet, these were only samples but there are a couple of German ones on Ebay.co.uk without the stylus.

                      .
                      .

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



                      Comment


                      • #12
                        piece of sh1t useless











                        send it to me to play with Alistair
                        Please excuse my typing as I have a form of parkinsons disease

                        Comment


                        • #13
                          Here's a link to the German ones,

                          http://www.haimer.de/english/taster.php


                          looks like you can order direct from them.
                          The Video/animation is good.

                          Lee.
                          I no longer own tools I had.

                          Comment


                          • #14
                            Lee,
                            Thanks for that, the video shows just how easy it is to use.

                            .
                            .

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



                            Comment


                            • #15
                              Originally posted by Ian B
                              John,

                              Just on why it's called a 'taster' - it's from the German word 'tasten' which means to feel or touch.



                              Ian

                              Hmmmm, Makes me want to take a stab at german porn;

                              She "tastened" it with her volumptuos lips, My achtung was focused on how she was holding my Howlizter --- I was getting very chaud -- couldnt stand the tastening any longer --- so I spanked her with it

                              (I know "chaud" means hot, its on allot of radiator caps and heat shields but I really dont know if its german --- please forgive - I had to make due)

                              Comment

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