Can any one please clarify my doubt if all the dimension are in positive tolerance that means 27+17+16+20 then the sum of all will be 80 but the over all length is 74.5+/- 1.5 only that means 76
You must complete a loop starting at one side. Assign a positive and a negative direction. Right is positive, left is negative. Starting at the end of B, going right, (so positive) you'll add 15, 16.5. Then you turn around, go left (negative) 75. And finally return to A. So plus 26. The sum of all these values is the nominal dimension of AB. The tolerances just get added straight down.
Won't be the sum of the upper limits of 1,2,A-B, and 4 equal to the upper limit of 3?
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Thanks for the clear explanation.
Thank you
Can any one please clarify my doubt if all the dimension are in positive tolerance that means 27+17+16+20 then the sum of all will be 80 but the over all length is 74.5+/- 1.5 only that means 76
Can't find the excel sheet in comment section
Not clear sir
You must complete a loop starting at one side.
Assign a positive and a negative direction. Right is positive, left is negative.
Starting at the end of B, going right, (so positive) you'll add 15, 16.5.
Then you turn around, go left (negative) 75.
And finally return to A. So plus 26.
The sum of all these values is the nominal dimension of AB.
The tolerances just get added straight down.