Hi, Proizvodnja
Create a sketch on the Top plane and add a couple of reference points. Ctrl-select one of the points and the circle and then apply "Pierce" relationship. Do the same to the other point.
Best regards,
Alex
Hi, dgehornback:
What is "a datasheet"? I assume it is a print. When you have multiple documents (in your case, you have a datasheet and an MBD model), you must define which is a primary document to define the part. I assume your datasheet is primary and your MBD model is referenced on your...
I think you are reinventing the wheel. If you want to change properties for a component, why don't you revise them accordingly in SW environment?
Best regards,
Alex
Hi, sendithard:
Are you a designer or a quality engineer? If I were you, I would not advise your machinist on how he or she machines this part.
I assume you are not a quality engineer. Otherwise, you would not ask this question below:
"Do you agree you must extract a measured value from both...
Profiles are supposed to be attached to surfaces. Attaching profiles to a size dimension is probably invalid, and thus is not advised by ASME Y14.5.
The upper segment is to locate the pattern with .1 while the bottom one is to refine it to 0.05 in reference to datum A only.
Best regards,
Alex
Hi, Sendithard:
This statement below is false as this feature does not have a specification for its size which is indirectly controlled by the profile tolerances.
"but it shouldn't change the nominal of what the size of the part should be made at."
Your part is good as long as both of the...
Hi, Kurtanius21:
You are confused because you said "datum axis B". Do you understand degrees of freedom (DOF) that datum feature B restraints? Datum feature B consists of an axis and a plane. You can locate any features to the axis anyway you want.
Best regards,
Alex
Hi, Supergee:
What you are after is qualification of datum features to make sure they are repeatable. There are tolerance and cost involved. You need to let your students know how to compromise them. I used to teach design of precision machine tools. I always use something similar to IT grades...
Hi, Supergee:
Designers of a product should be familiar with its manufacturing processes which control economical precision for a feature. If your students are not familiar with process, they can look at standard tolerances for typical manufacturing processes. If you are in US, you can look...
Hi, 3DDave:
You may not like this explanation below. But please take a look at it. This algorithm is different depending on whether the derived mediam plane is primary, secondary, or tertiary datum.
"
Yes, Hexagon's Coordinate Measuring Machine (CMM) software does have functionality to measure...
That is how the algorithm works on CMM machine. Your CMM stylus touch a bunch of points on one side. And it touches corresponding points on the other side. The datum plane C is established based on those "median" points using least squared error method.
Best regards,
Alex
Hi, 3DDave:
I just noticed your comments after I posted mine. Your statements are accurate except the following:
"Or datum plane C is created by the center point of a line created by 2 points on each face while perpendicular to Datum plane A and Datum plane B."
Datum plane C is perpendicular...
Hi, Bryan.mys:
There is something called "datum precedence".
Your datum feature A control 3 degrees of freedom;
Your datum feature B control 2 degrees of freedom;
Your datum feature C ONLY control 1 degree of freedom.
Your datum plane C is perfectly (or "BASIC" in GD&T) perpendicular to both...
