Using law curves, NX6.0
Using law curves, NX6.0
(OP)
A couple of design projects have gone by, and every once in a while something comes up where i feel a curve driven by an function would be beneficial. i have played around with the law curve option, but for the life of me i clearly do not know the syntax for inputting.
the first dialogue box pops up, "enter parameter expression to define x", and in the box, there is a 't' already highlighted.
could someone help me define the limits t, and the input function(s)?
thanks a ton...
the first dialogue box pops up, "enter parameter expression to define x", and in the box, there is a 't' already highlighted.
could someone help me define the limits t, and the input function(s)?
thanks a ton...





RE: Using law curves, NX6.0
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
UG/NX Museum: http://www.plmworld.org/p/cm/ld/fid=209
To an Engineer, the glass is twice as big as it needs to be.
RE: Using law curves, NX6.0
because i am actually trying to make gear teeth a little faster, i opened your involute example first. i noticed you made expressions for angle1 and 2 - how do i tell it the 't' parameter is those expressions?
RE: Using law curves, NX6.0
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
UG/NX Museum: http://www.plmworld.org/p/cm/ld/fid=209
To an Engineer, the glass is twice as big as it needs to be.
RE: Using law curves, NX6.0
RE: Using law curves, NX6.0
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
UG/NX Museum: http://www.plmworld.org/p/cm/ld/fid=209
To an Engineer, the glass is twice as big as it needs to be.
RE: Using law curves, NX6.0
all i need to know is, when i click curve->law curve->by equation, a box pops up with a highlighted 't', and it doesn't respond how i figure it would.
as in, i made a t parameter in my expressions list. i also made other parameters.
once i get to this box, it seems as if when i type in an equation or define t, it tells me it doesn't exist.
so clearly, i am missing something, all i am asking is, what is that something???
RE: Using law curves, NX6.0
I would advise you to get access to the Help files since you've already paid for them and NX is too complicated and comprehensive to think that you can use it effectively by only reading the menus and dialogs. I suppose that you've never had any formal training either, eh?
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
UG/NX Museum: http://www.plmworld.org/p/cm/ld/fid=209
To an Engineer, the glass is twice as big as it needs to be.
RE: Using law curves, NX6.0
If you create a law curve based on these functions for x and y and setting the z law curve to "constant" with a value of 0 you will get a line that runs from 0,0,0 to 1,2,0.
Attached is a file with a simple law curve.
t=0
xt=sin(t*360) (multiplying t by 360 returns values for 360 degrees)
yt= t*2
and zt is not defined (it will be constant).
So to create the curve:
Insert>curve>law curve
Select "by equation, accept "t" as the parameter and "xt" as the function.
Select "by equation, accept "t" as the parameter and "yt" as the function.
Select "Constant" and assign a value of 0.
Then accept the last dialogue box and the curve will be created.
RE: Using law curves, NX6.0
of course i've had formal training! though for those applications, nothing like law curves were ever covered!
thanks for the help! i knew i was missing something small...
RE: Using law curves, NX6.0
Would you buy a new car and never take a driving lesson?
John Joyce
N.C. Programming Supervisor
Barnes Aerospace, Windsor CT
NX6.0.5.3