Probe travels too far into hole

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  • Probe travels too far into hole

    Bear with me, my tech quit and I'm left hanging. My two days instruction ten years ago has expired from dis-use.

    I've created a plane and am now attempting to measure a boss ID .5 below this z zero plane. I have typed in the coordinates, diameter, depth for probe to measure etc.
    The probe moves to the center of the hole and then bottoms out.
    I just need to shorten the travel of the probe as it finds the hole.

  • #2
    sounds like you have "find center" turned on

    it will go straight down, but search depth cannot be controlled easily

    turn it off

    then see what happens

    OR

    the hole vector is incorrect and it wants to approach the hole from the far side

    change the vector if the first suggestion does not work

    HTH
    bob
    Which one gets ridden today? MPH vs MPG..tough choice, both are FUN
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    Starrett RGDC 4028-24 :alien:
    Demon vintages 3.7, 4.1, 4.2, 4.3, 2009

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    • #3
      Originally posted by Aitch View Post
      Bear with me, my tech quit and I'm left hanging. My two days instruction ten years ago has expired from dis-use.

      I've created a plane and am now attempting to measure a boss ID .5 below this z zero plane. I have typed in the coordinates, diameter, depth for probe to measure etc.
      The probe moves to the center of the hole and then bottoms out.
      I just need to shorten the travel of the probe as it finds the hole.
      Originally posted by bob mappes View Post
      sounds like you have "find center" turned on

      it will go straight down, but search depth cannot be controlled easily

      turn it off

      then see what happens

      OR

      the hole vector is incorrect and it wants to approach the hole from the far side

      change the vector if the first suggestion does not work

      HTH
      bob

      I think Bob is right that you have find hole turned on. However search depth CAN be easily changed. When doing a find hole, the probe will travel along the hole's vector the set search distance below the nominal location. The search distance is set up in the F10 menu under the tab marked motion. Change the search distance to the depth at which you want to measure or less (.5 in your case). So, just before your hole, hit F10 and change the search distance. Hit OK. Then after your hole hit F10 again and change your check distance back to what it was before (if you want to).

      I wouldn't set it less because let's say you have a hole that is supposed to be 0.6 in deep and you want to measure it at 0.5. Now let's assume you have your check distance set to 0.2. Let's also assume that the hole is actually only 0.49 deep. When you execute the hole it will search nice and slow to 0.2 and then try to run at movespeed to 0.5. Obviously it will hit the bottom of the hole at 0.49 going movespeed and you'll get an unexpected hit error.
      Last edited by #2#; 06-12-2007, 08:09 AM.

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      • #4
        After you took the plane did you set your zero to it?
        sigpic
        if you had soap on a rope it would be tied to yer ankle

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        • #5
          I unchecked Find Hole. Probe moved to hole center then to Spacer distance and took three hits on top of boss then quit.

          Was unsuccessful in changing the check distance under the Parameter Settings>Motion tab. It is set at a default of .125. I must be trying to insert the F10 at the wrong place.

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          • #6
            Originally posted by Aitch View Post
            I unchecked Find Hole. Probe moved to hole center then to Spacer distance and took three hits on top of boss then quit.

            Was unsuccessful in changing the check distance under the Parameter Settings>Motion tab. It is set at a default of .125. I must be trying to insert the F10 at the wrong place.
            Hmm, you should be able to insert a change in check distance wherever you want (in between other lines of code).

            Your autocircle window should look something like this one. It is for an 11 hit circle located at 0,0,0 with a depth of .5 and a diameter of .5.

            And the code with the check distance changes should look like this.
            Code:
            	    CHECK/ 0.5,1
            CIR6       =AUTO/CIRCLE,SHOWALLPARAMS = NO,SHOWHITS = YES
                        THEO/0,0,0,0,0,1,0.5
                        ACTL/0,0,0,0,0,1,0.5
                        TARG/0,0,0,0,0,1
                        MEAS/CIRCLE
                        HIT/BASIC,0.25,0,-0.5,-1,0,0,0.25,0,-0.5
                        HIT/BASIC,0.2103,0.1352,-0.5,-0.8413,-0.5406,0,0.2103,0.1352,-0.5
                        HIT/BASIC,0.1039,0.2274,-0.5,-0.4154,-0.9096,0,0.1039,0.2274,-0.5
                        HIT/BASIC,-0.0356,0.2475,-0.5,0.1423,-0.9898,0,-0.0356,0.2475,-0.5
                        HIT/BASIC,-0.1637,0.1889,-0.5,0.6549,-0.7557,0,-0.1637,0.1889,-0.5
                        HIT/BASIC,-0.2399,0.0704,-0.5,0.9595,-0.2817,0,-0.2399,0.0704,-0.5
                        HIT/BASIC,-0.2399,-0.0704,-0.5,0.9595,0.2817,0,-0.2399,-0.0704,-0.5
                        HIT/BASIC,-0.1637,-0.1889,-0.5,0.6549,0.7557,0,-0.1637,-0.1889,-0.5
                        HIT/BASIC,-0.0356,-0.2475,-0.5,0.1423,0.9898,0,-0.0356,-0.2475,-0.5
                        HIT/BASIC,0.1039,-0.2274,-0.5,-0.4154,0.9096,0,0.1039,-0.2274,-0.5
                        HIT/BASIC,0.2103,-0.1352,-0.5,-0.8413,0.5406,0,0.2103,-0.1352,-0.5
                        ENDMEAS/
                        CHECK/ 0.1,1
            Attached Files
            Last edited by #2#; 06-12-2007, 01:01 PM.

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