I understood that
The lower feature control frame is segment 2 also where two datums control the orientation and alignment
in figure looks like axis of smaller tolerance zone (segment 2) of Multi-segment FCF is not falls in pattern center location dimension 14 from Datum A.
center point is...
@Wuzhee Thank you for your detailed explonation.
@3DDave
I got doubt in radial hole pattern in both , pls find attachment
I did not find much difference between two images.https://files.engineering.com/getfile.aspx?folder=ccd87707-728e-49e6-ae1c-dd63cc40a573&file=radial_pattern.PNG
In fig 7.46 c
does pos tol 0.25 in lower segment provides pos tolerance for 125 basic dim from datum B or not ?
as per Wuzhee words
Multiple lower segment fixes distance to datum B as basic. No allowance. In this particular case.
what does no allowance means center of pattern holes did not...
Hi 3DDave
Thank you for response.
if Multiple lower segment fixes distance to datum B as basic in this case
In standard i see lower segment controls rotation and translation (basically located). what does allowed translation with respect to Datum B
my only doubt is when secondary datum is...
Hi All
Can any one explain exact difference between composite and multi-segment pos tolerance, is Multi segment used for refinement of uppersegment ?
in both lower segment controls orientation and feature relation then what is the difference and how to choose which one to use with same datums...
can anyone explain easiest method to calculate min gap
again i am confused with shift calculation
https://files.engineering.com/getfile.aspx?folder=078cc01e-1d88-4869-9a84-3e4f5367781b&file=james-page504.PNG
Thank you all for your valuable discussion.
for case D
for the datum shift calculation LMB size of datum feature A is 11.8, instead of 11.9 is it because of Datum feature size tolerance ?
for example if datum feature size is dia 12 +0 -0.5, then does LMB is 11 ?
please conclude
Hi
can any one help on this attached axis to axis shift calculations ?
i am aware virtual condition and resultant conditions but i had confusion on applying datum shift add or subtract ?
long back i worked on stack up method now after a gap i had confused,
please let me your ease way of...
Thanks for your thoughts
I knew that Run out is surface control and Position tol is axis axis control in this case,
my SQA team is asking to change to runout instead of pos tol for projected tolerance since they will insert a pin and check with dial on pin surface they are asking this...
HI
can we apply total runout with projected tolerance zone instead of position tolerance.
while both ends of Outer diameters are A and B.
how to measure projected tolerance with pos and runout
plaese...