Da!... there's a table in your way....

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  • Da!... there's a table in your way....

    OK, I just finished writing and running (sort of) a program to calibrate all 8 of my probes.
    The only problem I encountered is that I apparently do not have something set up right with my calibration sphere. During the autocalibrate process, the last tip that the machine calibrates for each probe, is one that is at an A90BXX angle. Then it wants to rotate to the A0B0 angle before going to pick up the next probe from the rack.
    The problem, is that it is not moving upwards enough to clear my longer probes from hitting the granite table, and popping off.
    I am assuming that this is a parameter of the calibration sphere setup, a clearance move or something--can anyone tell me exactly which item it is? I know how to get to the edit box for the tool (within the measure screen of one of the probes), but am not sure from there......
    Please help, I would love to be able to run this program at night when I leave as it takes about 3 hours to complete!

  • #2
    .02

    Maybe elevating the cal sphere would be a fix?

    TK
    sigpicHave a homebrew

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    • #3
      With your probe window open, go to setup and change the Clearance Distance along the qualification tool shank vector. I have mine at 6.00"
      sigpic

      James Mannes

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      • #4
        James is correct.
        sigpic

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        • #5
          shelly I have the exact same problem using "autocalibrate probe" and my sp600

          I use 3.5mr2 and put a call into tech sup for this problem about 1 1/2 months ago........still no call back to give me a fix


          James....that is a great suggestion but it doesn't work for me. It insists on rotating to a0b0 before moving up (to the clear dist) after calibrating a90b180 then it moves to the rack.........
          sigpiccall me "Plum Crazy"....but you only go around once!

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          • #6
            Just took a stab at it. I am not lucky enough to have a changer (other than my grubby little paws).
            sigpic

            James Mannes

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            • #7
              Originally posted by JamesMannes
              Just took a stab at it. I am not lucky enough to have a changer (other than my grubby little paws).
              I use the "grubby paws" technique myself, in my experience the probe changers are more hassle than they're worth.

              Good luck, gal!

              TK
              sigpicHave a homebrew

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              • #8
                You can give it a custom calibration order so it will measure the tips in the order YOU specify. You can then have it measure those A90 tips before tips that are closer to straight up and down, then it should not hit the table.
                sigpic
                Originally posted by AndersI
                I've got one from September 2006 (bug ticket) which has finally been fixed in 2013.

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                • #9
                  You can give it a custom calibration order so it will measure the tips in the order YOU specify. You can then have it measure those A90 tips before tips that are closer to straight up and down, then it should not hit the table.
                  Matt is correct. I had the same problem until I started doing it this way.
                  PCDmis 3.5mr2 CAD++

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                  • #10
                    Originally posted by tking
                    I use the "grubby paws" technique myself, in my experience the probe changers are more hassle than they're worth.

                    Good luck, gal!

                    TK
                    We have 4 shifts, 3 inspectors per shift, that = 12 paws on the CMMs. We have not had to order any replacement probes since we implemented the changers. Also, we plan on measuring four parts at the same time using a grid plate, so changing probes automatically will be a great asset.
                    I used to be high on life but I built up a tolerance.

                    Brown & Sharpe Global Advantage
                    PCDMIS CAD++ v2011mr2
                    PH10MQ/SP600M


                    sigpic

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                    • #11
                      but if change the cal order, and put the A90 tips first, it will still have to eventually go the A0 positions, and when it does, the clearance distance is not enough, with mylongest probe being a 6mm by 150mm, along with the sp600 head, this is approximately 11 inches from the bottom of my ph10 head--and I do vaguely remember someone else saying that the fix was the clearance distance that James suggests, but I have heard more than once that this didn't work.
                      At least it is nice to know MIke that someone else has a similar setup to mine---another person I can ask for specific questions on the sp600...
                      And I will tell you guys this, I love my change racks--I don't think we have a single program that uses only one tip, and God forbid I let the operators manually change tips on this machine, I would have crashes galore!
                      I guess I will have to have the tool room make me a custom elevation tool to mount my sphere on. Pretty sad that I had to pay 5000$ for the change racks, 400 bucks per module, and then I have to make something myself to make it all work together......go figure

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                      • #12
                        May be a waste of time ,but i would call tech support....all you waste is a phone call.
                        sigpic.....Its called golf because all the other 4 letter words were taken

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                        • #13
                          Matt is correct, if you select the probe tips to calibrate in an order to where the last tip to calibrate is at an angle closer to -A- 0 then the tip will not hit the table when it rotates to -A- 0 -B- 0. I had the same problem and this corrected it.
                          Last edited by SEVANS; 07-11-2006, 02:57 PM.

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                          • #14
                            Originally posted by Matthew D. Hoedeman
                            You can give it a custom calibration order so it will measure the tips in the order YOU specify. You can then have it measure those A90 tips before tips that are closer to straight up and down, then it should not hit the table.

                            Matt

                            I am aware of the parameter set function, however for the sake of our SMA I would have thought we should be able to let the software think for us. geesh its a simple canned routine for cryin' outside!
                            sigpiccall me "Plum Crazy"....but you only go around once!

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                            • #15
                              Originally posted by Mike N.
                              Matt

                              I am aware of the parameter set function, however for the sake of our SMA I would have thought we should be able to let the software think for us. geesh its a simple canned routine for cryin' outside!

                              All this time and you thought the software would do your thinking for you? Haven't you been reading these forums? Heck, everyone know that not only do we have to do the thinking for the software but for tech support as well!
                              sigpic
                              Originally posted by AndersI
                              I've got one from September 2006 (bug ticket) which has finally been fixed in 2013.

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