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Clear Plane Leaving Z Axis Limits

derekvegeta
The clear planes in my program do not want to co-operate today. I'm using a read point for the manual alignment, as far as I can see I did not forget to translate my Z. DCC_ORG Is a circle that takes 3 sample hits on the Z=0 surface I want. The clearplane at the end is where I'm getting the error.


CODE

MODE/DCC
CLEARP/ZPLUS,0.15,ZPLUS,0,OFF
MAN_ORG =FEAT/POINT,CARTESIAN
THEO/<-0.787,-0.102,0>,<0,0,1>
ACTL/<16.5346,6.6828,-27.4938>,<0,0,1>
READPOINT/
A_MAN =ALIGNMENT/START,RECALL:STARTUP,LIST=YES
ALIGNMENT/TRANS,ZAXIS,MAN_ORG
ALIGNMENT/TRANS,XAXIS,MAN_ORG
ALIGNMENT/TRANS_OFFSET,XAXIS,0.787
ALIGNMENT/TRANS,YAXIS,MAN_ORG
ALIGNMENT/TRANS_OFFSET,YAXIS,0.102
ALIGNMENT/END
DCC_ORG =FEAT/CONTACT/CIRCLE/DEFAULT,CARTESIAN,IN,LEAST_SQR
THEO/<-0.787,-0.102,0>,<0,0,1>,0.096
ACTL/<-0.799,-0.0971,0.0138>,<0.0001931,0.0005264,0.9999998>,0.0 958
TARG/<-0.7874,-0.1023,0>,<0,0,1>
START ANG=0,END ANG=360
ANGLE VEC=<0.8741573,0.4856429,0>
DIRECTION=CCW
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
A_DCC =ALIGNMENT/START,RECALL:A_MAN,LIST=YES
ALIGNMENT/TRANS,XAXIS,DCC_ORG
ALIGNMENT/TRANS_OFFSET,XAXIS,0.787
ALIGNMENT/TRANS,YAXIS,DCC_ORG
ALIGNMENT/TRANS_OFFSET,YAXIS,0.102
ALIGNMENT/TRANS,ZAXIS,DCC_ORG
ALIGNMENT/END
DCC_ROT =FEAT/CONTACT/CIRCLE/DEFAULT,CARTESIAN,IN,LEAST_SQR
THEO/<-3.898,-0.102,0>,<0,0,1>,0.096
ACTL/<-3.9005,-0.0771,0.001>,<-0.0009519,0.0007254,0.9999993>,0.0953
TARG/<-3.898,-0.102,0>,<0,0,1>
START ANG=0,END ANG=360
ANGLE VEC=<1,0,0>
DIRECTION=CCW
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
A_DCC2 =ALIGNMENT/START,RECALL:A_DCC,LIST=YES
ALIGNMENT/ROTATE_CIRCLE,XPLUS,TO,DCC_ROT,AND,DCC_ORG,ABOUT,Z PLUS
ALIGNMENT/END
CHECK/0.05,1
PREHIT/0.04
RETRACT/0.04
DCC_LVL =FEAT/CONTACT/PLANE/DEFAULT,CARTESIAN,OUTLINE,LEAST_SQR
THEO/<-1.1563,-0.3114,0>,<0,0,1>
ACTL/<-1.1563,-0.3114,0.0002>,<0.0003244,0.0004314,0.9999999>
TARG/<-1.1563,-0.3114,0>,<0,0,1>
ANGLE VEC=<1,0,0>,SQUARE
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=NO
A_DCC3 =ALIGNMENT/START,RECALL:A_DCC2,LIST=YES
ALIGNMENT/LEVEL,ZPLUS,DCC_LVL
ALIGNMENT/TRANS,ZAXIS,DCC_LVL
ALIGNMENT/TRANS,XAXIS,DCC_ORG
ALIGNMENT/TRANS_OFFSET,XAXIS,0.787
ALIGNMENT/TRANS,YAXIS,DCC_ORG
ALIGNMENT/TRANS_OFFSET,YAXIS,0.102
ALIGNMENT/ROTATE_CIRCLE,XPLUS,TO,DCC_ROT,AND,DCC_ORG,ABOUT,Z PLUS
ALIGNMENT/END
MOVE/CLEARPLANE
  • you have your clearplane established too early in your routine. Move or re-define the clearplane after you establish your alignment, and you should be set.
  • A Clearp declaration will use the current alignment to set the clearance plane. Always keep this in mind when you're building alignments that could have varying Z locations, as the clearance plane will not change unless you redeclare it under the new alignment.

    Also, when building alignments, unless you're trying to accomplish something very specific, the rule of thumb is to always level, rotate, translate in that order. Not following this rule will lead to some tricky situations where your origin is off from where you think it should be.
  • If you have created an alignment and the " TRIHEDRON" is still moving... you have serious issues 99% of the time.
  • in reply to louisd
    I wasn't sure where to put the clearplane common till I read this and see an example in the F1 function.

    "The Pass-Through Plane defines a clearance plane that the probe moves to and then passes through to get to the next active clearance plane after a probe's TIP command. The new CLEARP definition command must immediately follow the TIP command to properly define the pass through plane. When PC-DMIS encounters the next MOVE/CLEARPLANE command, it moves to the pass through plane and remains at that offset distance until it reaches the next active clearance plane.
    Clearance plane Example 
    
            TIP/T1A0B0, SHANKIJK=0, 0, 1, ANGLE=0

            CLEARP/ZPLUS,2,ZPLUS,0,ON (New clearance plane defined)

PLN1       =FEAT/PLANE,CARTESIAN,TRIANGLE

            THEO/<0.3597,0.3544,-0.8268>,<0,0,1>

            ACTL/<0.3597,0.3544,-0.8268>,<0,0,1>

            MEAS/PLANE,3

            MOVE/CLEARPLANE (Probe moves to the defined clearance plane)

            HIT/BASIC,NORMAL,<0.2346,0.6411,-0.8268>,<0,0,1>,<0.2346,0.6411,-0.8268>,USE THEO = YES

            HIT/BASIC,NORMAL,<0.2034,0.2502,-0.8268>,<0,0,1>,<0.2034,0.2502,-0.8268>,USE THEO = YES

            HIT/BASIC,NORMAL,<0.6412,0.172,-0.8268>,<0,0,1>,<0.6412,0.172,-0.8268>,USE THEO = YES

            ENDMEAS/

CON2       =FEAT/CONE,CARTESIAN,IN

            THEO/<8.9134,0.4921,-0.9193>,<0,0,-1>,0.3964,0.5906,0.5906

            ACTL/<8.9134,0.4921,-0.9193>,<0,0,-1>,0.3964,0.5906,0.5906

            MEAS/CONE,8

            MOVE/CLEARPLANE (Probe moves to the defined clearance plane)

            HIT/BASIC,NORMAL,<9.2087,0.4921,-0.9193>,<-1,0,0>,<9.2087,0.4921,-0.9193>,USE THEO = YES

            HIT/BASIC,NORMAL,<8.9134,0.7874,-0.9193>,<0,-1,0>,<8.9134,0.7874,-0.9193>,USE THEO = YES

            HIT/BASIC,NORMAL,<8.6181,0.4921,-0.9193>,<1,0,0>,<8.6181,0.4921,-0.9193>,USE THEO = YES

            HIT/BASIC,NORMAL,<8.9134,0.1969,-0.9193>,<0,1,0>,<8.9134,0.1969,-0.9193>,USE THEO = YES

            HIT/BASIC,NORMAL,<9.2087,0.4921,-1.3158>,<-1,0,0>,<9.2087,0.4921,-1.3158>,USE THEO = YES

            HIT/BASIC,NORMAL,<8.9134,0.7874,-1.3158>,<0,-1,0>,<8.9134,0.7874,-1.3158>,USE THEO = YES

            HIT/BASIC,NORMAL,<8.6181,0.4921,-1.3158>,<1,0,0>,<8.6181,0.4921,-1.3158>,USE THEO = YES

            HIT/BASIC,NORMAL,<8.9134,0.1969,-1.3158>,<0,1,0>,<8.9134,0.1969,-1.3158>,USE THEO = YES

            ENDMEAS/

CIR1       =FEAT/CIRCLE,CARTESIAN,IN,LEAST_SQR

            THEO/<6.0827,3.1693,-0.012>,<0,0,1>,0.5906

            ACTL/<6.0827,3.1693,-0.012>,<0,0,1>,0.5906

            MEAS/CIRCLE,4,WORKPLANE

            MOVE/CLEARPLANE (Probe moves to the defined clearance plane)

            HIT/BASIC,NORMAL,<6.378,3.1693,-0.012>,<-1,0,0>,<6.378,3.1693,-0.012>,USE THEO = YES

            HIT/BASIC,NORMAL,<6.0827,3.4646,-0.012>,<0,-1,0>,<6.0827,3.4646,-0.012>,USE THEO = YES

            HIT/BASIC,NORMAL,<5.7874,3.1693,-0.012>,<1,0,0>,<5.7874,3.1693,-0.012>,USE THEO = YES

            HIT/BASIC,NORMAL,<6.0827,2.874,-0.012>,<0,1,0>,<6.0827,2.874,-0.012>,USE THEO = YES

            ENDMEAS/

            CLEARP/YMINUS,-3,ZPLUS,2,ON (New clearance plane defined, this time with a pass through plane)

            TIP/T1A90B-180, SHANKIJK=0, -1, 0, ANGLE=180

CIR2       =FEAT/CIRCLE,CARTESIAN,IN,LEAST_SQR

            THEO/<4.8819,0,-0.5906>,<0,1,0>,1.2362

            ACTL/<4.9445,15.8342,-0.5906>,<0,0,1>,31.4282

            MEAS/CIRCLE,4,WORKPLANE

            MOVE/CLEARPLANE (Probe travels through the Pass Through Plane in ZPLUS to the YMINUS clearance plane)

            HIT/BASIC,NORMAL,<4.8819,0.0623,-0.8406>,<-0.9999185,-0.012768,0>,<4.8224,0.0025,-0.8406>,USE THEO = YES

            MOVE/CIRCULAR

            HIT/BASIC,NORMAL,<5.1319,0.0623,-0.5906>,<-0.9999279,-0.012008,0>,<5.0733,0.0026,-0.5906>,USE THEO = YES

            MOVE/CIRCULAR

            HIT/BASIC,NORMAL,<4.8819,0.0623,-0.3406>,<-0.9999185,-0.012768,0>,<4.8224,0.0025,-0.3406>,USE THEO = YES

            HIT/BASIC,NORMAL,<4.6319,0.0623,-0.5906>,<0.9999071,0.0136308,0>,<4.69,0.0041,-0.5906>,USE THEO = YES

            ENDMEAS/

            MOVE/CLEARPLANE
[code]
  • oh though I am still learning it myself. I like to know how to add cleance move in to a CYL in between mid points. 
    A_10.125 =FEAT/CONTACT/CYLINDER/DEFAULT,CARTESIAN,OUT,LEAST_SQR
THEO/<0,0,0>,<0,-1,0>,10.125,-1.02
ACTL/<0,0,0>,<0,-1,0>,10.125,-1.02
TARG/<0,0,0>,<0,-1,0>
START ANG=-13.3,END ANG=192.4
ANGLE VEC=<1,0,0>
DIRECTION=CCW
SHOW FEATURE PARAMETERS=YES
VOID DETECTION=NO
REMEASURE=NO,USE THEO=YES
SURFACE=THICKNESS_NONE,0
MEASURE MODE=NOMINALS
RMEAS=NONE,NONE,NONE
AUTO WRIST=NO
CIRCULAR MOVES=CIRCULAR
GRAPHICAL ANALYSIS=NO
FEATURE LOCATOR=NO,NO,""
SHOW CONTACT PARAMETERS=YES
NUMHITS=5,NUMLEVELS=3,DEPTH=0.07874,END OFFSET=0.07874,PITCH=0
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0
AVOIDANCE MOVE=NO,DISTANCE=0.3937
FIND HOLE=DISABLED,ONERROR=NO,READ POS=NO
SHOW HITS=YES
HIT/BASIC,<4.96436,0.94126,-0.99198>,<0.9806147,0,-0.1959461>,<4.96436,0.94126,-0.99198>
HIT/BASIC,<3.92734,0.94126,3.19451>,<0.7757711,0,0.631 0144>,<3.92734,0.94126,3.19451>
HIT/BASIC,<0.03976,0.94126,5.06234>,<0.0078539,0,0.999 9692>,<0.03976,0.94126,5.06234>
HIT/BASIC,<-3.87668,0.94126,3.2558>,<-0.7657639,0,0.6431218>,<-3.87668,0.94126,3.2558>
HIT/BASIC,<-4.97933,0.94126,-0.91388>,<-0.9835715,0,-0.1805191>,<-4.97933,0.94126,-0.91388>
HIT/BASIC,<-4.97933,0.51,-0.91388>,<-0.9835715,0,-0.1805191>,<-4.97933,0.51,-0.91388>
HIT/BASIC,<-3.87668,0.51,3.2558>,<-0.7657639,0,0.6431218>,<-3.87668,0.51,3.2558>
HIT/BASIC,<0.03976,0.51,5.06234>,<0.0078539,0,0.999969 2>,<0.03976,0.51,5.06234>
like here
HIT/BASIC,<3.92734,0.51,3.19451>,<0.7757711,0,0.631014 4>,<3.92734,0.51,3.19451>
like here
HIT/BASIC,<4.96436,0.51,-0.99198>,<0.9806147,0,-0.1959461>,<4.96436,0.51,-0.99198>
like here
HIT/BASIC,<4.96436,0.07874,-0.99198>,<0.9806147,0,-0.1959461>,<4.96436,0.07874,-0.99198>
HIT/BASIC,<3.92734,0.07874,3.19451>,<0.7757711,0,0.631 0144>,<3.92734,0.07874,3.19451>
HIT/BASIC,<0.03976,0.07874,5.06234>,<0.0078539,0,0.999 9692>,<0.03976,0.07874,5.06234>
HIT/BASIC,<-3.87668,0.07874,3.2558>,<-0.7657639,0,0.6431218>,<-3.87668,0.07874,3.2558>
HIT/BASIC,<-4.97933,0.07874,-0.91388>,<-0.9835715,0,-0.1805191>,<-4.97933,0.07874,-0.91388>
ENDMEAS/
[code]
  • Put your cursor at the end of the line above where you want it, then go to Insert -> Move -> Move Clearplane. For some reason it doesn't let you hit enter and type it in manually Disappointed
  • Put your cursor at the end of the line above where you want it, then go to Insert -> Move -> Move Clearplane. For some reason it doesn't let you hit enter and type it in manually Disappointed

    I use a whole lot of cleaplanes. I use them so often that I actually have Ctrl + Spacebar set as shortcut to insert a clearplane command. If you have a shortcut set, it makes it really easy to insert a clearplane inside a feature the way MetsoMetrology suggests.
  • I make it a practice to define the clearplane after every alignment no matter if it is a new alignment or I am recalling an alignment and I do it no matter if the trihedron moves or not. Spend an extra few seconds for peace of mind.
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