I have a unique situation. Our forming branch needs a program made for a window trim, assumed it'd be easy enough as its just reporting some XYZ set profile points with in car position XYZ set coordinates. I have done this before however they require utilization of a slot for the alignment and the only other time I did this, was for a gage fixture that had 3 spheres that gave the offsets for the in-car coordinate.
After some research on here I was able to discern that I would likely need to use a constructed point off center of the slot (thanks Matt), and an iterative alignment. I have refreshed my memory with them via the training and lab offered in CMM 211 extra content (has a lab with Manual/DCC iterative using world coordinate), however am still failing miserably. I even copied it near verbatim with no success. I was considering downloading the CAD and IGS file with points to see if I can even replicate it to see where I am messing up.
I was originally gonna cheat and just use the f5 "lock car coordinate" toggle so the alignment never moves away from that setting, however I am unsure how to align the part in order to run clean in DCC with that being set to locked world coordinate system (keeps telling me I am out of machine capability). That's what I assumed the iterative alignment was going to fix but once I hit the features manually even with a massive point target radius, the circle and slot they use to rotate and origin end up larger/not where they are on the CAD (almost like when hitting manually in the wrong workplane). It then DCC's over to a random location on the table after telling me to place the probe near my initially hit point. I used read vector and flipped them when it was facing the inside, and have the part fixtured on 2 posts with spring clamps with the slot and hole facing my table X- with the probe in A90B90 so it can hit all required alignment targets.
Attached is a picture of the alignment scheme to get an idea of it as well as a snapshot of what happening after I manually align. The 3 points they use for the planar alignment are on a long curved feature, which is skewing the alignment I think, as the vector's were not given to me.
Program Code below (not functioning)
__________________________________________________ ___
PART NAME : WINDOW RAIL REAR (LH)
REV NUMBER : 02
SER NUMBER : 78593265 RH
STATS COUNT : 1
STARTUP =ALIGNMENT/START,RECALL:USE_PART_SETUP,LIST=YES
ALIGNMENT/END
MODE/MANUAL
PREHIT/0.8
RETRACT/0.8
MOVESPEED/ 500
MANRETRACT/1.5
FORMAT/TEXT,OPTIONS, ,HEADINGS,SYMBOLS, ;NOM,TOL,MEAS,DEV,OUTTOL, ,
LOADPROBE/TC3_2MMX40MM
TIP/T1A90B90, SHANKIJK=-1, 0, 0, ANGLE=90
PNT1 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<3111.95,1045.66,1793.8>,<0.1039575,-0.9905949,-0.0889636>
ACTL/<388.454,1059.505,-245.271>,<-0.9979487,0.0048044,-0.0638382>
TARG/<3111.95,1045.66,1793.8>,<0.1039575,-0.9905949,-0.0889636>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
AVOIDANCE MOVE=NO,DISTANCE=10
SHOW HITS=NO
PNT2 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<3108.75,1029.42,1988.21>,<0.1044568,-0.9905058,-0.0893706>
ACTL/<419.196,303.223,-766.675>,<-0.999997,0.00245,0>
TARG/<3108.75,1029.42,1988.21>,<0.1044568,-0.9905058,-0.0893706>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
AVOIDANCE MOVE=NO,DISTANCE=10
SHOW HITS=NO
PNT3 =FEAT/CONTACT/VECTOR POINT/DEFAULT,CARTESIAN
THEO/<3124.77,1001.93,2267.42>,<0.1036899,-0.9880009,-0.1144669>
ACTL/<415.904,577.075,-759.519>,<-0.9999993,0.0008247,-0.0008247>
TARG/<3124.77,1001.93,2267.42>,<0.1036899,-0.9880009,-0.1144669>
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
AVOIDANCE MOVE=NO,DISTANCE=10
SHOW HITS=NO
CIR1 =FEAT/CONTACT/CIRCLE/DEFAULT,CARTESIAN,IN,LEAST_SQR
THEO/<3119,1004.65,2238.9>,<0.103662,-0.9873932,-0.1196197>,8.1
ACTL/<335.907,1068.95,-703.679>,<0.103662,-0.9873932,-0.1196197>,55.148
TARG/<3119,1004.65,2238.9>,<0.103662,-0.9873932,-0.1196197>
START ANG=0,END ANG=-360
ANGLE VEC=<-0.7557154,0,-0.6549002>
DIRECTION=CCW
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=4,DEPTH=0.6,PITCH=0
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0
AVOIDANCE MOVE=NO,DISTANCE=10
FIND HOLE=DISABLED,ONERROR=NO,READ POS=NO
SHOW HITS=NO
PNT4 =FEAT/POINT,CARTESIAN,NO
THEO/<3119,1004.65,2238.9>,<0.103662,-0.9873932,-0.1196197>
ACTL/<335.907,1068.95,-703.679>,<0.103662,-0.9873932,-0.1196197>
CONSTR/POINT,CAST,CIR1
SLTR1 =FEAT/CONTACT/ROUND SLOT/DEFAULT,CARTESIAN,IN
THEO/<3110.95,1030.66,1977.08>,<0.103662,-0.9873932,-0.1196197>,<0.0320666,-0.1168873,0.9926274>,8.1,12
ACTL/<339.228,1060.674,-672.636>,<0.103662,-0.9873932,-0.1196197>,<0.0267596,-0.1174554,0.9927176>,2.993,9.214
TARG/<3110.95,1030.66,1977.08>,<0.103662,-0.9873932,-0.1196197>,<0.0320666,-0.1168873,0.9926274>
MEAS ANGLE=90
SHOW FEATURE PARAMETERS=NO
SHOW CONTACT PARAMETERS=YES
NUMHITS=6,DEPTH=0.7
SAMPLE METHOD=SAMPLE_HITS
SAMPLE HITS=0,SPACER=0
AVOIDANCE MOVE=NO,DISTANCE=10
FIND HOLE=DISABLED,ONERROR=NO,READ POS=NO
SHOW HITS=NO
PNT5 =FEAT/POINT,CARTESIAN,NO
THEO/<3110.95,1030.66,1977.08>,<0.103662,-0.9873932,-0.1196197>
ACTL/<339.228,1060.674,-672.636>,<0.103662,-0.9873932,-0.1196197>
CONSTR/POINT,CAST,SLTR1
A1 =ALIGNMENT/START,RECALL:STARTUP,LIST=YES
ALIGNMENT/ITERATE
PNT TARGET RAD=5,START LABEL=,FIXTURE TOL=0,ERROR LABEL=
MEAS ALL FEAT=NO,LEVEL AXIS=YAXIS,ROTATE AXIS=XAXIS,ORIGIN AXIS=ZAXIS
LEVEL=PNT1,PNT2,PNT3,,
ROTATE=PNT5,PNT4,,
ORIGIN=PNT4,,
ALIGNMENT/END
Attached Files
