Profile -Chained Dimensions- Stack up
Profile -Chained Dimensions- Stack up
(OP)
If I have several chained dimensions, each defined with a basic dimension and a profile tolerance. Is the last dimension cumulative (sum of the basic dimensions + the worst case profiles) or can I just add all the basic dimensions in the chain and apply the profile once to the last edge?
Robert
Robert





RE: Profile -Chained Dimensions- Stack up
John-Paul Belanger
Certified Sr. GD&T Professional
http://www.gdtseminars.com
RE: Profile -Chained Dimensions- Stack up
Fundamentally, basic dimensions are non cumulative, since the tolerance isn't on the dimension but on the feature itself.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Profile -Chained Dimensions- Stack up
Your profile tolerances are with respect to the datums, not the previous dimensions. Unless you are doing something very weird with your datums, the tolerances are not cumulative.
RE: Profile -Chained Dimensions- Stack up
RE: Profile -Chained Dimensions- Stack up
When measured correctly did it pass inspection?
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Profile -Chained Dimensions- Stack up
Dave D.
www.qmsi.ca
RE: Profile -Chained Dimensions- Stack up
"Good to know you got shoes to wear when you find the floor." - Robert Hunter
RE: Profile -Chained Dimensions- Stack up
Thank you for your assistance with this.