Assigning MMC through Variables

[Cumofo]

Why does this not work?

DIM DIST1= 2D PERP TO LINE LIN4, NO_RADIUS UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH AX NOMINAL MEAS +TOL -TOL DEV OUTTOL
M 0.3400 0.3467 0.0100 0.0000 0.0067 0.0000 ------#--

ASSIGN/MMC = DIST1.M.MEAS-.340

DIM LOC8= TRUE POSITION OF LINE LIN3 UNITS=IN ,$
GRAPH=OFF TEXT=OFF MULT=10.00 OUTPUT=BOTH DEV PERPEN ENTERLINE=OFFDISPLAY=DIAMETER
AX NOMINAL MEAS +TOL -TOL BONUS DEV OUTTOL
X -0.1700 -0.1750 -0.0050
Z 2.0750 2.0748 -0.0002
D1 PLANE DATUM A AT RFS
D2 0.3400 0.3433 0.0100 0.0000 CIRCLE DATUM B AT RFS
D3 0.3400 0.3438 0.0100 0.0000 CIRCLE DATUM C AT RFS
TP RFS 0.0050+MMC 0.0000 0.0099 0.0049 -------->
END OF DIMENSION LOC8


Obviously with MMC the Slot is good. For why?

Gabriel

[Cumofo]

Nevermind Machine GLitched out on a SATurday

Nevermind The stupid Machine GLitched out on a SATurday, like clockwerk right?
The varible is passing through fine now after the program lockup and crashed.(LOL) I still love it when Pc-Dmis does the jump off the cliff routine, it let's me know I'm still workin'it.

anyhow the variable is working fine, and it even counted up when I pasted with a 19X pattern offset!

THX fer listening!!
Gabriel

[kbotta]

You might have scared it into submission

[Cumofo]

MMC through variables

You might have scared it into submission

Yes, It was a not a unique application of MMC of a slot, though novice users should take note.
The distance call being the width of the slot (DIM DIST1= 2D PERP TO LINE LIN4).
Passed through as a delta for MMC (ASSIGN/MMC = DIST1.M.MEAS-.340)
and added to the tolerance block(TP RFS 0.0050+MMC)

Gabriel

[craiger_ny]

You might want to put an If End If in there to assign 0 to your variable MMC for instances where your slot is undersize otherwise you'll get a negative MMC variable added to your tolerance which you do not want. I too script my bonus like this and add this in to error proof it. I also use the dimension block to extract all of my MMC data for variable assignment so that my variables and variable expressions do not need to be edited if feature nominals or dimension tolerances change. Any edit to the dimension block updates my variables without any further editing required.

Craig