Hi to all. I have to shell this car solid at 2mm but i always get error for those faces:
I can delete some of them and redo them, once solid is shelled succesfully, without problem, but some other are very important and difficult to remake. Is there another way to reach my goal?
Hello Marco,.. first,.. very nice model!.... for the shell to work, you need a "minimum of radius of curvature" (MRoC) on the surface (screen shot attached)... and to dissect where they are,.. you need to run Tools/Evaluate/Check/"Minimum radius of curvature" (MRoC).. from there you would need to adjust how the surfaces flow to increase > the MRoC.... and depending on how they surfaces were created.. it could be a challenge.
One of the easy ways (but not always pretty) is to trim or split the surface area where the MRoC is and Fill (or Delete Surface with Tangency).
(BTW... also consider "Thicken, Surface" ..that is, the individual Panels.
In general, when you run a Check entity on those surface, if the minimum radius of curvature is less than the value you want to shell to, then you will probably have problems when you try to shell.
If you isolate those surfaces, then select them and run the check....check your minimum radius of curvature. It will even tell you where it is. That will give you a good clue as to where you need to fix the surface. You should be able to at least narrow down the areas that need rebuilding/modification.
Thnx to all for anwers, i run check entity for minimum radius and it says many faces with minimum radius under my needs, so it's a mess, il try to split it
I'm still here trying to recreate from scratch because i really need to shell at 2 mm, the problem is still here:
As yo can see i always get a minimum radius of 1.3 in this point, this is the real car surface, i cannot change it and also i cannot change the scale of the model, i tried with and without tangent faces but with no luck...
Can someone show me a way to do it?
You need to split the face where your curvature is under 2mm and create the offset manually. Then merge into a solid afterwards.
Don't see another option.
Hi Elmar, can you show me an example if you have one?
Here is a quick sketch. The spline was split since the offset would have created a intersecting region in the phantom area.
You need to model the sharp corner manually and trim back the surfaces.
That's the basic idea.
You can use split surface or trim to exclude the problem areas. Then patch the offending areas in after the thicken surface was added for all surfaces with large enough curvature.
You can export out the surfaces to individual part files. Then you can fix them individually and import them later back in. That helps for complex models that would otherwise slow you down too much.
Thnks, i will try!
I'm here trying to do that, i understand basically but what i don't understand is that you did an offset with splines, i can't offset a 3d sketch... can you show me an example based on my sample file please?
The spline example was only meant for demonstration. A simple representation for a surface problem in this case.
You need to split out all areas of your surface that have a curvature smaller than your thickness. All other areas will work with thickening feature. The rest you need to patch manually with all available surface features.
Here are some good tips..
SolidWorks World 2014 - Make it Shell - DiMonte Group
Tutorials Archives - DiMonte Group
Marco,.. I'll add a file to Elmar's references,.. I did a example of your quasi hood yesterday, had to leave so, I could not post.. see attached image/file.... this has the MRoC at < ~1.3 but not exactly at the corner... it then offsets the surfaces and trims back the bad ends (or you would need to pre/split the faces and offset.. then adds blends and closeds to form a solid,. btw, just playing with the sketches or conditions this has a ripple affect....so, it may fail.
Thnx Paul, i think that if i have to do that amount of work for all the car surface i'll get mad soon!!
Hey Marco,.. yeah,.. I hear ya,.. btw, you might have not read the fine print,..
"Shelling in SolidWorks may accelerate all degenerative human illnesses."
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