Tolerance in view style
Tolerance in view style
(OP)
What is the meaning of the tolerance in view style? Do I need to increase/decrease this value? Or let it system decide?
Thanks
NX4.0.4.2 mp10
win xp 32bit
Thanks
NX4.0.4.2 mp10
win xp 32bit





RE: Tolerance in view style
That being said, why are you asking whether you need to "increase/decrease" this value? What is it that you're seeing which makes you think that it needs to be changed?
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Tolerance in view style
So it's just intresting what is the meaning of it. Is it milimeters? If I do not need this number at all, so why I'm seeing it and it is possible to enter any value?
RE: Tolerance in view style
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Tolerance in view style
Does it meen, that my drafting view can be presented (ploted?) with inaccuracy of about 4mm?
RE: Tolerance in view style
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Tolerance in view style
@John,
I did not understand the meaning of the description given. Can you elaborate it.
RE: Tolerance in view style
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Tolerance in view style
RE: Tolerance in view style
Proud Member of the Reality-Based Community..
RE: Tolerance in view style
So when we say 'Chordal Height' we are talking about the difference between the theoretical curve and the line segments which are being used to render it, as shown in the exaggerated image attached to this post.
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Tolerance in view style
Proud Member of the Reality-Based Community..
RE: Tolerance in view style
Proud Member of the Reality-Based Community..
RE: Tolerance in view style
Since the move to NX6, I haven't had much need to change the value. From personal experience, I have not noticed much difference in the time it takes to update the drawing whether a small or large value is used, but then again I don't believe I've ever taken it all the way down to 0.
RE: Tolerance in view style
What are the units of this variable, and can someone suggest an optimun value for a feller that typically makes "B", "C", "D", and "E" size drawings?
Proud Member of the Reality-Based Community..
RE: Tolerance in view style
Proud Member of the Reality-Based Community..
RE: Tolerance in view style
If you're working in Metric I would set this to around 0.100 and if Imperial units, 0.005.
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Tolerance in view style
The Customer Defaults > Drafting > View > Units System is either "Metric" or "English", and does not convert when the user changes units.....?
I will try "English" at .005, and report back....thanks.
capn
Proud Member of the Reality-Based Community..
RE: Tolerance in view style
Note that if you open the Help files and search on Chord Height Tolerance and select the first result (General options) you will go to a page which explains all of this and provides examples using images similar to what I posted earlier.
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Tolerance in view style
So, does this "optimum" refer to optimum drawing accuracy, or optimum time to generate the drawing? Two different requirements here ---- do I have a choice?
Proud Member of the Reality-Based Community..
RE: Tolerance in view style
"The smaller the specified value the more accurate the representation. However, smaller tolerance values cause longer update times."
That should have been a clue that the term 'optimum' was speaking more along the lines of some 'happy medium'.
As for you "having a choice", if we didn't want you to have a choice, we would NOT have allowed you to override the default. By entering some non-zero value, you are indicating what it is that your preferences are. Now as to exactly what that value should be, since it has already been pointed out that there are many variables, you will need to experiment and find out for yourself and your situation as to what is an 'optimal' value to use. Good luck.
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Tolerance in view style
Proud Member of the Reality-Based Community..
RE: Tolerance in view style
Do you have 'extract associative edges' toggled on in your views? If so, this may be adding to the time it takes to update.
RE: Tolerance in view style
That being said, before I would start second guessing the system, I have to ask, why are you looking to change what the system thinks is 'optimal'? What behavior or symptoms have you experienced which has led you to conclude that you needed to change the value of the Chordal Height Tolerance?
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Tolerance in view style
Proud Member of the Reality-Based Community..
RE: Tolerance in view style
Customer Defaults -> Drafting -> View -> Threads
...and toggle OFF the 'True Hidden Line' option.
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Tolerance in view style
The verrrry slow updating of my top-level assembly drawings is the symptom I am trying to alleviate, by investigating the chordal tolerance variable.......which I am now concluding that for some nefarious reason is being brushed under the rug, so to speak, insofar as the explanations I have been given as to what the optimal value for this tolerance is, and how it is magically derived and not revealed to me anywhere.
As long as I put my faith in the system, enter zero, and take the result I am given, everything will be just fine, eh? I don't believe it. Show me, I used to be from Missouri.
If the number is not zero, can the system report to me what value is being used, so that I have a starting point to use for weighing the trade-off between accuracy and time..?
NX 7.5.1.5
Proud Member of the Reality-Based Community..
RE: Tolerance in view style
BTW, where are you located? Over the next 2 months I'm going to be traveling across about half the country (Eastern half) and who knows, I might be passing close by...
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Tolerance in view style