These files have given me issues since i first started working on them about a year ago. They take a very long time to open at times and some other users cant open them at all. The files were working great to update sketches and wave links them all i did was shade the objects and it gave me the error.
I am using 10.0.3 MP16, not sure if MP16 is the newest.
Lewis
Thanks for the recommendations. I appreciate it. I have taken note to review and work with these tips next week. I'll post an update to see how it worked out. Thanks
I wish someone from Siemens could also chime in with a specific definition of the G1 Magnitude value.
The following sentence: "The magnitude controls how quickly the spline changes direction near the point of tangency" is too generic for my taste.
The G1 magnitude has a unit (inches) associated with it. All we want to know is: What exactly (on screen) is this measuring?
Thanks!
Jeff
Hi
You cannot make a 'component' one-level-down from the specification a Reference Component. Add the assembly to your master model as a component and you will be able to use this option.
Regards, Ben
Hello all,
One of my client has borrowed the lic and it was working fine now ...now he's out of country and he's unable to connect to open nx!return date was applied till 13th of this month but he's unable to use it?and he doesn't have any vpn cable or any other hardware to connect..
So any suggestions would be helpful
Any ideas..how to get back?
Sometimes conic/spline in sketch has many advantages over conic/spline in modeling. But editing conic/spline could disrupt contraints in sketch and associativeness in modeling.
Should use of conic/spline in sketch be avoided? Thanks for your suggestions!
I have been trying different thing but all in vain
without that option life has become miserable I have to deselect and select again and I have to do that repeatedly.
Someon please help me out here
USING NX11.0.0.33
Ciao,
I don't have this license at home so I could be imprecise. Activate More options as I show you in the attached image.
It should appear the flag 'deselect automatically'.
I hope it is what you need.
Ciao
Ciao
I never build splines or conics inside the sketch, I prefer to use the sketches for boundary condition such as tangency, end point and so on.
I prefer to control the features individually so I exactly know where they eventually fail.
When I teach NX courses, I give the example of a light of a car: if the bulb is blown I don't want to change the whole light :-)
You write "Sometimes conic/spline in sketch has many advantages over conic/spline in modeling" in which cases is this true in your opinion?
Ciao
Cesare
"Non-timestamp Geometry" node in Part Navigator is a great addition of NX 11.0.2.
I noticed that some composite geometry can be unpacked into single geometries. I wonder whether it is possible to pack single geometries, e.g. those lines shown, into a composite geometry? Thanks!
Hi,
Thank you for sharing your practice!
As to conic/spline in sketch vs. in modeling, I really love the sketch environment -- dragging, dimensioning, constraining ... everything is so free and so good ... 
))
Basically the quick answer is as was stated before, G1 states that the control polygon from each side curve (not shown) is tangent making the Normal vector or curve comb inline see G1 image but not necessarily the same length that would be attained with better continuity
G2 would produce the unit vector to be the same length see G2
G3 would produce the effect of a parametric continuity in that if you were riding 2 bikes on each spline towards each other at the same speed, they would meet at the connection at the same time … I am paraphrasing big time here … there is more to this but this is for just a visual
More info but may be too much...
1) G0,G1,G2,G3 vrs C0,C1,C2,C3 Parametric vs. Geometric Continuity see google
https://www.quora.com/Whats-the-difference-between-C-and-G-continuity-for-splines
2) There are two ways of computing curvature deviation between curves/surfaces.
For simplicity let us assume we are computing the curvature deviation between curves.
At the 2 end points of the curves, we can calculate the curvature values. Let us call them k1 and k2. (Note that both these are absolute values of the original curvature value.)
The absolute curvature deviation is the (k1 - k2). (Note this returns the absolute value).
The relative curvature deviation is calculated using different techniques and applying a ratio.
The reason we have the two ways of computing is that different software use different ways. Please correct me if I am wrong, Alias always computes absolute curvature deviation. In Imageware, we have a system preference, where we can set either absolute or relative.
There are advantages and disadvantages in absolute curvature deviation.
The advantage is that it gives us the exact deviation.
The disadvantage is that if we have a plane (curvature is 0) or a very low curvature, then the deviation value is extremely high (actually equal to the other curve), but when we use relative, it gives us an appropriate low ratio (generally to keep the value under 1).
Not to confuse the discussion, Imageware uses a different equation to compute the relative curvature deviation.
Relative Curvature = Absolute Curvature / Max (k1, k2). (Note all numbers are again absolute values.) This always gives us a relative curvature deviation less than 1.
This is right out of the UG help menu;
G2 = Curvature Deviation, measured as the difference divided by the average.
Example:
Radius 1 = 5.0
Radius 2 = 3.0
Radius 1 - Radius 2 = 2 (Difference)
(Radius 1 + Radius 2) / 2 = 4 (Average)
Difference / Average = .5 curvature
This is how NX match edge measures curvature.
Hope this helps.
More info:
The Surface Continuity Analysis Operator (SCAO) and the Match Edge continuity checker use the same methods.
It is obvious how G0 and G1 are calculated. For G2, we use "Relative" values. What we mean is that the G2 value is equal to the difference in curvature for the selected edges divided by the maximum curvature value of the edges. This way, we always make sure that G2 is within 1 or 100%. G2 is essentially a percentage value.
G2 = mod( mod(Edge1)-mod(Edge2) ) / max( mod(Edge1),mod(Edge2) )
The above is used for SCAO and Match Edge Operator. I do not use the other analysis tools to check continuity and do not know what method they use!!
We use relative curvature since we make parts of various sizes. While working on a hood we may use larger absolute curvature values while working on an instrument panel we use smaller absolute curvature values. If the same user is designing both, how would he know which curvature is acceptable. Hence many car companies use the relative curvature like say 25%. Some European car companies use as less as 2%.
More info
Subject: G2 Formula Tested and Proven Match EDGE
This one is really simple,
If you don’t use relative error then you end up with model size dependant tolerances for curvature.
Example.
User models a radio button 12mm diameter, needs curvature continuous blend on part of the feature – the actual difference in curvature might be in the order of mm, but still look bad.
Second user is working on a roof panel, part is 1500mm long , radius values are in the region of 40M (max stamping limit), hence acceptable differences would in the 100’s of mm range if not in the meters range.
If the same guy does both jobs above it gets even worse, you have no idea what numbers are good bad or otherwise.
So, we use relative difference.
Most Studios use a 1:4 ratio as the minimum acceptable difference in curvature, 25% in other words. Many (Like Jaguar,VW,Audi) use nearer 2% as the acceptable limit – everywhere.
As you can see, once you start looking at standards and the meaning of the numbers, relative error makes far more sense.
Of course for Angle (tangency) using real numbers is fine, since we are only looking at the edge condition.
Hope this helps,
Namaste,
Thanks Cesar, I looked into that but that is already set to 'more'....
Anything else I can try?
would placing them in an object Group do what you are looking for?
Thanks everyone for the suggestions
Hi,
Yes, so far object Group is ok.
Object "Group" gives a list of selected geometries, both feature and featureless. "Non-timestamp Geometry" gives a COMPLETE list of and could be a good place to manage featureless geometries, but seems to be too early to be used as a serious organizing tool.
Thanks for your reply!
Very often in building a spline, alignment of the tangent direction gives the undesired direction. Is there any way to reverse it readily?
Thanks!
Ciao,
expand the Constraint group, select the point from the list then reverse tangent.
Ciao
Hi
