Interpreting LMC for Pattern of Slots (GD&T)

optomist1

A Sea of Statistics
Trusted Information Resource
#1
Good Day To All GD&T experts,

I need a little affirmation regarding Y14.5M 1994 Figure 5.14 Interpreting LMC; this may be elementary to some but indulge me in a little post labor day revelry, I think:

This is my read on the figure:
At LMC condition the slot width is 3.5 +0.05 or 3.55, and the Positional Tolerance Width is 0.5; the 2.025 dim is the the LMC condition 3.55 + the 0.5 tolerance zone or 4.05/2 = 2.025

At MMC condition the slot width is 3.5 - 0.05 or 3.45, and the Positional Tolerance Zone Width is 0.5 PLUS the accumulated or Maximum Bonus of 0.10 or 0.6; and finally the 2.025 dim remains the same because the 0.1 lost in the LMC to MMC excursion is picked up in the Tolerance Zone Width 0.5 + 0.10 Bonus.

If I'm wrong let me down easy.....Thanks for your assistance.

Regards,
Marty
 
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Stijloor

Staff member
Super Moderator
#2
Good Day To All GD&T experts,

I need a little affirmation regarding Y14.5M 1994 Figure 5.14 Interpreting LMC; this may be elementary to some but indulge me in a little post labor day revelry, I think:

This is my read on the figure:
At LMC condition the slot width is 3.5 +0.05 or 3.55, and the Positional Tolerance Width is 0.5; the 2.025 dim is the the LMC condition 3.55 + the 0.5 tolerance zone or 4.05/2 = 2.025

At MMC condition the slot width is 3.5 - 0.05 or 3.45, and the Positional Tolerance Zone Width is 0.5 PLUS the accumulated or Maximum Bonus of 0.10 or 0.6; and finally the 2.025 dim remains the same because the 0.1 lost in the LMC to MMC excursion is picked up in the Tolerance Zone Width 0.5 + 0.10 Bonus.

If I'm wrong let me down easy.....Thanks for your assistance.

Regards,
Marty
Marty,

Happy to help, but I am on the road and I do not have the Standard with me. :nope:

Maybe other GD&T friends can jump in....

Stijloor.
 

optomist1

A Sea of Statistics
Trusted Information Resource
#3
Hi Stijloor,

Thank you for responding....Y14.5M 1994 don't leave home without it!!! I'm not in a big hurry....

Regards,
Marty
 

optomist1

A Sea of Statistics
Trusted Information Resource
#4
Hi To Everyone,

With the not too recent holiday...just thought I'd bump this thread for those who may have missed an opportunity to reply with a comment...I could use a little help on interpreting a pattern of slots at LMC as shown in Y14.5M 1994....

Many Thanks,

Marty
 
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