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Blending curve to curve

Blending curve to curve

Blending curve to curve

(OP)

Hi Guys,
It’s a very basic question but I can’t figure it out. Please see the attached picture. I am trying to produce a fan blade and want to extrude 1st curve and blend into the 2nd curve.
We are using NX 8.5 and on a basic licence.
Thank you
Regards Rodney

RE: Blending curve to curve

You are looking for a feature named "Through Curves". ( = "Loft" in other systems)
Select profile1, then click "add new set" ( or middle mouse click) then select profile2 . Make sure you select the profiles "consistently".( i.e "same" curve and same end of both curves) You will then avoid confusion smile. ( Such as twisted results etc.)

You can then play around with the options in the dialog to get the desired shape.

Regards,
Tomas

RE: Blending curve to curve

(OP)
Thanks John, that's a great help.

regards

Rodney

RE: Blending curve to curve

In my humble opinion... , i would not recommend the options used on the particular example supplied,
In the example : alignment by points which is fully ok, but ... If one looks at the two sides of the model, the concave side shows two faces whilst the convex side only 1 face. In my view would like to have a similar topology here, i.e total of 3 faces "around" instead of 2. The reason is that the resulting surfaces will be much simpler than if one of the 2 faces has to "manage" both the relatively flat and at the same time the relatively tight curvature, plus the transition between.
Edit the feature, turn on "Preserve shape" and set the alignment option to "parameter".
For us nerds:
Original face : 3x3 degree / 28x1 patches
preserve shape + parameter 4x3 degree / 1x1 patch and 4x3 d. / 3x1 p.

Regards,
Tomas


RE: Blending curve to curve

Toost is correct, 'by points' is probably not the best approach in this case. His suggestions will result in a 'better' model.

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: Blending curve to curve

(OP)
Thanks guys for your input. Must appreciated.

regards

Rodney

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