Thicken Surfaces

[Mechman50]

Would someone be willing to take a look at this set of surfaces, would like to yield a solid model for fiberglass tooling; thickness of 4mm, offset inside. This is the healed version. Healing "reported":

148 reduced edge tolerances
13 reduced vertex tolerances
3 simplified geometries

Thickening yields errors:

Gashes found

Selected "remove gashes" 0.0100

"Gashes found and removed"

"Cannot offset face. The offset distance might be greater than the radius of curvature
of the face or the offset face might intersect itself"



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NX 8.0.3.4

 

[JohnRBaker]

The minimum radius is significantly less than 4 mm, closer to 2 mm. This is the primary problem.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

 

[Mechman50]

Does that force me to alter the surfaces, increasing all radii to >4mm? Are there any alternatives? Surfaces are not my friend. If this part doesn't fall under the category of "rocket science" or "Swiss watch", can I fudge it in any way? Can the software highlight the problem areas?

Thanks ahead of time.

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NX 8.0.3.4

 

[Rob_N]

Why do you need a solid to make a tool?
If I am understanding correctly you are planing to make what I call a lay up model.
Something that you gelcoat then "layup" the fiberglass, and trim out manually?

If that is the purpose, I would change your selection to single face, thicken only the outside faces, extract the 4mm faces, hiding the original, then extrude the edges normal to the 4mm surface and patch/fill the not so smooth areas.

I made a quick video of what I mean.

My boss uses the "we're not making swiss watches" analogy often... I haven't done a Layup model in years. we used to do them all the time. IPs, front and rear fascias. Mostly for auto show and concept cars.

 

[Toost]

What system is the origin of this model ? It looks nice by at first glance but the faces has absurd amounts of patches. Having that amount of patches "might"/"will" induce a non-expected/wanted "ripple" which in turn might/will contain a small curvature, which limits the offset capabilities.
verify minimum radius : Analysis - Minimum radius - Select.... - You will find weird values.
This model also includes face-Face intersections and "cuts", use Analysis - Examine Geometry - turn on all options and select everything .
Study the Face intersections and the Sheet Boundaries .

Regards,
Tomas

 

[Mechman50]

Thanks guys for all your answers. I am experimenting with them now.

Bill


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NX 8.0.3.4