expressions in works
expressions in works
(OP)
can someone explain, step by step (from file, new, modeling, ...), how to make these expressions to work (normal helix). Should I have some curve already before writing these expressions, ...
t = 1
teta = 360
radius = 12
no_turns = 5
height = 45
pitch = ( height/no_turns )
xt = radius * cos( teta * t * no_turns )
yt = radius * sin( teta * t * no_turns )
zt = pitch * t
\is "t" NX internal variable changing from 0 ro 1?
Thanks a lot for your time
t = 1
teta = 360
radius = 12
no_turns = 5
height = 45
pitch = ( height/no_turns )
xt = radius * cos( teta * t * no_turns )
yt = radius * sin( teta * t * no_turns )
zt = pitch * t
\is "t" NX internal variable changing from 0 ro 1?
Thanks a lot for your time





RE: expressions in works
Yes. Do you really want the pitch (zt value) to vary?
Assuming you want a constant pitch helix:
To create a curve from your equations, go to Insert -> Curve -> law curve.
X law: by equation, parameter t, function xt
Y law: by equation, parameter t, function yt
Z law: constant, value: pitch
www.nxjournaling.com
RE: expressions in works
I never before used this to create a curve. I use NX 7.5
I got many options (7), and click on "by equation"
Came out "law curve" but with only one row showing t in it.
How to enter all of that equations together?
Thanks again
RE: expressions in works
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
Siemens PLM:
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
RE: expressions in works
RE: expressions in works
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
Siemens PLM:
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
RE: expressions in works
www.nxjournaling.com
RE: expressions in works
When you thereafter create the curve and select the "By equation" option, you will be prompted for the named variables you showed in the first post.
( You are free to use any variable , but NX will by default ask for the ones you show.)
Regards,
Tomas
RE: expressions in works