surfacing fundamentals
surfacing fundamentals
(OP)
Hi
I am relatively new to NX but experienced in Catia v5.
I am wondering about the fundamentals of surfacing in NX. It appears that once you have modified a surface you can not reuse it.
For example if you have a base flat surface with two independent sheet cylinders that pass through the base surface. Once one of the cylinders has been filleted to the base surface, the base surface ceases to exist and cannot be used to fillet to the other cylinder.
In Catia all surfaces are always available, when you modified an existing surface you created a new surface with the modification, so the original surface could be used again and again.
Is it possible in NX to allow the surfaces to be used as they were created even after they have been used/modified, I am using NX10 but have tried this in 8.5 as well
Thanks for your help
I am relatively new to NX but experienced in Catia v5.
I am wondering about the fundamentals of surfacing in NX. It appears that once you have modified a surface you can not reuse it.
For example if you have a base flat surface with two independent sheet cylinders that pass through the base surface. Once one of the cylinders has been filleted to the base surface, the base surface ceases to exist and cannot be used to fillet to the other cylinder.
In Catia all surfaces are always available, when you modified an existing surface you created a new surface with the modification, so the original surface could be used again and again.
Is it possible in NX to allow the surfaces to be used as they were created even after they have been used/modified, I am using NX10 but have tried this in 8.5 as well
Thanks for your help





RE: surfacing fundamentals
Working with solid bodies is much better.
RE: surfacing fundamentals
RE: surfacing fundamentals
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.
RE: surfacing fundamentals
I have filleted the smaller diameter cylinder to the fill. I want to be able to fillet the large diameter cylinder to the fill as well but it appears I can not as that part of the fill is no longer there.
Is there a way of achieving this or am I using NX wrong?
Again this is a very simplified case.
Rob
RE: surfacing fundamentals
The original surface is still there, it's just been consumed by the blend/fillets. If you go back to the flat surface (Make Current Feature), then there is your original flat surface. If you require this flat surface for some other purpose, then Extract it. NX is "time" based. When you do something to your features/bodies, what you see onscreen is the end result. There isn't a copy laying around because NX allows you to go back in "time" to see how it existed at that earlier point in "time". If you need a copy of a feature/body, then you can Extract one at an earlier point. There's no need to have copies of EVERYTHING. See the attached file - the features on Layer 1 outline my example. Layer 2 outlines another example using Extract on the Extruded features and another workflow to end up with the same result (but with more steps or features).
I understand it's hard to let go of previous concepts that you've learned or practiced, but trust me, in this case you're going to be better off letting go of CATIA's approach and learning to think in terms of how NX is built to function. Plus your files will be much smaller in size.
NX_vs_v5_example-NX9.prt
Tim Flater
NX Designer
NX 9.0.3.4 Win7 Pro x64 SP1
Intel Xeon 2.53 GHz 6GB RAM
NVIDIA Quadro 4000 2GB
RE: surfacing fundamentals
Tim Flater
NX Designer
NX 9.0.3.4 Win7 Pro x64 SP1
Intel Xeon 2.53 GHz 6GB RAM
NVIDIA Quadro 4000 2GB
RE: surfacing fundamentals
RE: surfacing fundamentals
here is my example in 8.5
I have filleted the smaller diameter cylinder to the flat surface. I want to be able to fillet the large diameter cylinder to the flat surface as well but it appears I can not as that part of the flat surface is no longer there to be used.
RE: surfacing fundamentals
RE: surfacing fundamentals
Here's two ways to get the same thing - a revision to your original route, with a Trimmed Sheet added. Borrowing your Bounded Plane and no Trimmed Sheet on Layer 10.
surfacing_8.5.prt
Tim Flater
NX Designer
NX 9.0.3.4 Win7 Pro x64 SP1
Intel Xeon 2.53 GHz 6GB RAM
NVIDIA Quadro 4000 2GB
RE: surfacing fundamentals
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.