Dimensioning Auto Round Slots

[Boomer]

I have never used the auto round slot feature...never had the need. I programmed up a piece using it today...when I dimension the slot I seemingly can only get the overall length, do I need to use assignments to get the distance between the 2 radii of the slot?? Like below??

ASSIGN/V1 = SLT1.LENGTH-SLT1.DIAM
ASSIGN/V2 = SLT2.LENGTH-SLT2.DIAM
F1 =GENERIC/CIRCLE,DEPENDENT,RECT,OUT,$
NOM/XYZ,0,0,0,$
MEAS/XYZ,0,0,0,$
NOM/IJK,0,-1,0,$
MEAS/IJK,0,-1,0,$
DIAMETER/1.25,V1
F2 =GENERIC/CIRCLE,DEPENDENT,RECT,OUT,$
NOM/XYZ,0,0,0,$
MEAS/XYZ,0,0,0,$
NOM/IJK,0,-1,0,$
MEAS/IJK,0,-1,0,$
DIAMETER/2.75,V2
DIM LOC4= LOCATION OF CIRCLE F1 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH
AX MEAS NOMINAL +TOL -TOL MAX MIN DEV
D 1.2511 1.2500 0.0050 0.0050 0.0000 0.0000 0.0011 -----#---
END OF DIMENSION LOC4
DIM LOC5= LOCATION OF CIRCLE F2 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH
AX MEAS NOMINAL +TOL -TOL MAX MIN DEV
D 2.7506 2.7500 0.0050 0.0050 0.0000 0.0000 0.0006 -----#---
END OF DIMENSION LOC5

[inspector212]

The length of the slot, LF, will give you tangent to tangent. If you want center to center, you will have to create a circle on each end and dimension the distance between them.

I would suggest that you report the tangent to tangent, LF, though as it is a more useful number.

[Boomer]

Would like to

Would like to dimension tan to tan, but print is calling out center to center.

[inspector212]

If you have access to the engineer, ask him or her to change it and explain why. If not, report it center to center. I don't know how much leaniancy you have but if it were me and I have a lot, I would report it tan to tan and do a cen to cen as reference.

[#2#]

I have never used the auto round slot feature...never had the need. I programmed up a piece using it today...when I dimension the slot I seemingly can only get the overall length, do I need to use assignments to get the distance between the 2 radii of the slot?? Like below??

ASSIGN/V1 = SLT1.LENGTH-SLT1.DIAM
ASSIGN/V2 = SLT2.LENGTH-SLT2.DIAM
F1 =GENERIC/CIRCLE,DEPENDENT,RECT,OUT,$
NOM/XYZ,0,0,0,$
MEAS/XYZ,0,0,0,$
NOM/IJK,0,-1,0,$
MEAS/IJK,0,-1,0,$
DIAMETER/1.25,V1
F2 =GENERIC/CIRCLE,DEPENDENT,RECT,OUT,$
NOM/XYZ,0,0,0,$
MEAS/XYZ,0,0,0,$
NOM/IJK,0,-1,0,$
MEAS/IJK,0,-1,0,$
DIAMETER/2.75,V2
DIM LOC4= LOCATION OF CIRCLE F1 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH
AX MEAS NOMINAL +TOL -TOL MAX MIN DEV
D 1.2511 1.2500 0.0050 0.0050 0.0000 0.0000 0.0011 -----#---
END OF DIMENSION LOC4
DIM LOC5= LOCATION OF CIRCLE F2 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH
AX MEAS NOMINAL +TOL -TOL MAX MIN DEV
D 2.7506 2.7500 0.0050 0.0050 0.0000 0.0000 0.0006 -----#---
END OF DIMENSION LOC5

I guess the only problem I see with this is the "SLT1.DIAM". Since it is a slot, it has a radius at each end. One could be different from the other. I haven't done any round slots but it seems to me you need to subtract the measured radius of one end and then subtract the measured radius of the other end. I'm not sure if you can do this.

It is probably easiest to do a circle at either end as inspector212 suggested.

[Perry Fisher]

I just finished running some parts with 1 side and 1 end of round slots being dimensioned instead of the CL. I created variables from the measured slots then created generic points using the variable values. Below is a portion of my program. Someone with more experience may be able to accomplish the same with less code but this worked for me.

DIM D58_1= LOCATION OF SLOT SL58U UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=BOTH
AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
L 1.710 1.709 0.020 -0.020 -0.001 0.000 ----#----
END OF DIMENSION D58_1
DIM D58_11= LOCATION OF SLOT SL58U UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=REPORT
AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
L 1.710 1.709 0.020 -0.020 -0.001 0.000 ----#----
Y 5.750 5.749 0.020 -0.020 -0.001 0.000 ----#----
END OF DIMENSION D58_11
DIM D58_2= LOCATION OF SLOT SL58L UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=BOTH
AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
L 1.710 1.709 0.020 -0.020 -0.001 0.000 ----#----
END OF DIMENSION D58_2
DIM D58_12= LOCATION OF SLOT SL58L UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=REPORT
AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
L 1.710 1.709 0.020 -0.020 -0.001 0.000 ----#----
Y -5.750 -5.749 0.020 -0.020 0.001 0.000 ----#----
END OF DIMENSION D58_12
DIM D59_1= LOCATION OF SLOT SL59U UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=BOTH
AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
L 1.710 1.708 0.020 -0.020 -0.002 0.000 ----#----
END OF DIMENSION D59_1
DIM D59_11= LOCATION OF SLOT SL59U UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=REPORT
AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
L 1.710 1.708 0.020 -0.020 -0.002 0.000 ----#----
Y 2.000 1.999 0.020 -0.020 -0.001 0.000 ----#----
END OF DIMENSION D59_11
DIM D59_2= LOCATION OF SLOT SL59L UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=BOTH
AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
L 1.710 1.709 0.020 -0.020 -0.001 0.000 ----#----
END OF DIMENSION D59_2
DIM D59_12= LOCATION OF SLOT SL59L UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=REPORT
AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
L 1.710 1.709 0.020 -0.020 -0.001 0.000 ----#----
Y -2.000 -1.999 0.020 -0.020 0.000 0.000 ----#----
END OF DIMENSION D59_12
ASSIGN/V60_1 = (D58_11.Y.MEAS-(D58_11.L.MEAS/2))
ASSIGN/V60_2 = (D58_12.Y.MEAS+(D58_12.L.MEAS/2))
ASSIGN/V61_1 = (D59_11.Y.MEAS-(D59_11.L.MEAS/2))
ASSIGN/V61_2 = (D59_12.Y.MEAS+(D59_12.L.MEAS/2))
P60_1 =GENERIC/POINT,DEPENDENT,RECT,$
NOM/XYZ,0.846,4.895,0.441,$
MEAS/XYZ,SL58U.X,V60_1,SL58U.Z,$
NOM/IJK,1,0,0,$
MEAS/IJK,1,0,0
P60_2 =GENERIC/POINT,DEPENDENT,RECT,$
NOM/XYZ,0.846,-4.895,0.441,$
MEAS/XYZ,SL58L.X,V60_2,SL58L.Z,$
NOM/IJK,1,0,0,$
MEAS/IJK,1,0,0
P61_1 =GENERIC/POINT,DEPENDENT,RECT,$
NOM/XYZ,0.845,1.145,0.441,$
MEAS/XYZ,SL59U.X,V61_1,SL59U.Z,$
NOM/IJK,1,0,0,$
MEAS/IJK,1,0,0
P61_2 =GENERIC/POINT,DEPENDENT,RECT,$
NOM/XYZ,0.845,-1.145,0.441,$
MEAS/XYZ,SL59L.X,V61_2,SL59L.Z,$
NOM/IJK,1,0,0,$
MEAS/IJK,1,0,0
DIM D60_2= LOCATION OF POINT P60_1 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=BOTH
AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
Y 4.895 4.895 0.020 -0.020 0.000 0.000 ----#----
END OF DIMENSION D60_2
DIM D60_2= LOCATION OF POINT P60_2 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=BOTH
AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
Y -4.895 -4.894 0.020 -0.020 0.001 0.000 ----#----
END OF DIMENSION D60_2
DIM D61_1= LOCATION OF POINT P61_1 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=BOTH
AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
Y 1.145 1.145 0.020 -0.020 0.000 0.000 ----#----
END OF DIMENSION D61_1
DIM D61_2= LOCATION OF POINT P61_2 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=BOTH
AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
Y -1.145 -1.145 0.020 -0.020 0.000 0.000 ----#----
END OF DIMENSION D61_2

If you're wondering why I dimensioned each one twice. Once for variable creation only, the second for sending to Datapage.

[Perry Fisher]

Try this

Boomer,

I did some testing in my program. First, the slot I measured is .210 x 1.710 along Y axis. The CL to CL dimension would be 1.500. Below I figured out dimensioning the CL to CL dimension using the values from an auto round slot.

DIM D58_TEST= LOCATION OF SLOT SL58U UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=1.00 OUTPUT=REPORT
AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
Y 5.750 5.749 0.020 -0.020 -0.001 0.000 ----#----
R 0.105 0.104 0.020 -0.020 -0.001 0.000 ----#----
L 1.710 1.709 0.020 -0.020 -0.001 0.000 ----#----
END OF DIMENSION D58_TEST
ASSIGN/V_TEST = (D58_TEST.L.MEAS/2)-(D58_TEST.R.MEAS)
P_TEST =GENERIC/POINT,DEPENDENT,RECT,$
NOM/XYZ,316.622,5.75,-0.146,$
MEAS/XYZ,SL58U.X,SL58U.Y+V_TEST,-0.146,$
NOM/IJK,1,0,0,$
MEAS/IJK,1,0,0
P_TEST1 =GENERIC/POINT,DEPENDENT,RECT,$
NOM/XYZ,316.622,5.75,-0.146,$
MEAS/XYZ,SL58U.X,SL58U.Y-V_TEST,-0.146,$
NOM/IJK,1,0,0,$
MEAS/IJK,1,0,0
DIM TEST = 2D DISTANCE FROM POINT P_TEST1 TO POINT P_TEST PARALLEL TO YAXIS, NO_RADIUS UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH
AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
M 1.500 1.500 0.020 -0.020 0.000 0.000 ----#----

HTH