True Position of Rectangular Slots
True Position of Rectangular Slots
(OP)
Hi,
If I call out the true position of a rectangular slot in only in the x direction, does that apply in the Y direction as well or only in the X direction?
thanks
If I call out the true position of a rectangular slot in only in the x direction, does that apply in the Y direction as well or only in the X direction?
thanks





RE: True Position of Rectangular Slots
RE: True Position of Rectangular Slots
RE: True Position of Rectangular Slots
However, if a complete 'slot' I'm wondering why not use position in both directions, and look into the "boundary" concept?
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: True Position of Rectangular Slots
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: True Position of Rectangular Slots
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: True Position of Rectangular Slots
RE: True Position of Rectangular Slots
what does FCF stand for?
thanks for all your help by the way
RE: True Position of Rectangular Slots
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: True Position of Rectangular Slots
RE: True Position of Rectangular Slots
RE: True Position of Rectangular Slots
Powerhound, GDTP T-0419
Engineering Technician
Inventor 2010
Mastercam X5
Smartcam 11.1
SSG, U.S. Army
Taji, Iraq OIF II
RE: True Position of Rectangular Slots
RE: True Position of Rectangular Slots
Frank
RE: True Position of Rectangular Slots
Dave D.
www.qmsi.ca
RE: True Position of Rectangular Slots
Powerhound, GDTP T-0419
Engineering Technician
Inventor 2010
Mastercam X5
Smartcam 11.1
SSG, U.S. Army
Taji, Iraq OIF II
RE: True Position of Rectangular Slots
These are tapered square holes with positional tolerance in one direction only.
Dave D.
www.qmsi.ca
RE: True Position of Rectangular Slots
I am with powerhound on this - tapered features or cones are not features of size so profile tolerance is more appropriate way to go - but that's just my opinion. They indeed have opposite points, but they are not associated with unique single size. How could somebody try to apply bonus tolerance concept to that? Which size should be used for bonus calculation?
I do not want to open this can of worms again. I think we had the discussion enough times before.
RE: True Position of Rectangular Slots
Also, no tolerance on the width of the feature. And the location dimension from the edge to the center of the datum-C feature is not basic.
Profile is a far better choice.
Jim Sykes, P.Eng, GDTP-S
Profile Services www.profileservices.ca
TecEase, Inc. www.tec-ease.com
RE: True Position of Rectangular Slots
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: True Position of Rectangular Slots
Dave D.
www.qmsi.ca
RE: True Position of Rectangular Slots
Jim Sykes, P.Eng, GDTP-S
Profile Services www.profileservices.ca
TecEase, Inc. www.tec-ease.com
RE: True Position of Rectangular Slots
RE: True Position of Rectangular Slots
You stated "Also, no tolerance on the width of the feature. And the location dimension from the edge to the center of the datum-C feature is not basic.
Profile is a far better choice. "
I agree that the tapered holes do not show size tolerances and they must. I have a hard time understanding why there needs to be a basic dimension from datum C to the edge unless the edge is shown in a profile. I do see a .526 dimension.
If the holes were toleranced, we could calculate the MMB of each hole in one direction so I would rather use positional versus profile. It is possible to have a checking fixture with tapered pins locating on true position for the location of the holes in one direction.
Dave D.
www.qmsi.ca
RE: True Position of Rectangular Slots
Jim Sykes, P.Eng, GDTP-S
Profile Services www.profileservices.ca
TecEase, Inc. www.tec-ease.com