Does this Solid Works Fillet differ significantly from Fusion capacities?
it is simply the fillet result preview
https://www.engineersrule.com/advanced-breakdown-solidworks-fillet-featuretool/
Claas Kuhnen
Faculty Industrial Design – Wayne State Universit
Chair Interior Design – Wayne State University
Owner studioKuhnen – product : interface : design
Fusion uses Autodesks own modeling kernel called ASM which is known for its limitations (this is why Fusion has some of the same limitations like Inventor) and SolidWorks uses Parasolid which is known as one of the best modeling kernels.
Each kernel provides the tools to analyze edges, cut them open and patch in new blend surfaces which are the fillets you see later. But that is what technically speaking each modeling app does.
Nothing special here to compare.
Claas Kuhnen
Faculty Industrial Design – Wayne State Universit
Chair Interior Design – Wayne State University
Owner studioKuhnen – product : interface : design
@mavigogun wrote:
@cekuhnen wrote:
it is simply the fillet result preview
Oh, ya, sure- the preview suggested, though, some insight into how Solid Works confronts the process of performing the Fillet; I'm just curious if and how that process differs from how Fusion tackles the task.
Fusion just hides the iso lines. If you export and open in another program you can see it's using the same sort of process. Can hid how ugly some filetes really are.
Mark
Mark Hughes
Owner, Hughes Tooling
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That is the nature of parametric solid modelers. Also SolidWorks does not create the same surface quality one would get out of dedicated surface modelers like Alias.
The main difference is in Alias I also manipulate the NURBS patch CVs working with single patch surfaces ( no spans) while SolidWorks Fusion and co rather work with surfaces that are automatically generated / updated by sketch driven features.
However what should be considered is manual NURBS patch modeling offers more manipulation freedom but is also drastically harder than sketch/feature based parametric modeling.
Having grown up with NURBS in recent years I switched to Fusion because surface quality is less an issue and design workflow / speed is significantly faster and more productive than in Rhino / Alias.
Regarding surface quality issues of ASM two points come to my mind.
1. thin sliver surfaces
2. loft command needs rail curves - rail edges cannot be interpolated and thus are straight which is a significant limitation of the modeling tool. with the sketch engine also having issues with 3D sketches the problem is further complicated because no well working alternative approach is present
3. While I am here not sure if this ASM related but Fusion as well as Inventors geometry fillet G2 option is very basic and visually not pleasing.
It looks as the G1 fillet profile just gets a more surface curvature like start and end while the mid section remains more like a G1 creating those odd flat looking mid sections.
Compare this with a proper G2 fillet
This could be circumvented by instead of using Fillet use Loft to create the blend surface because Loft allows you to adjust the blend surface profile but then we hit again the issue of the rail surface edges not being interpolated and 3D sketches being not very usable when constraining is needed.
Or you use solid modeling and sweep to round corners.
But this also only works well when the geometry allows you to use this process
Claas Kuhnen
Faculty Industrial Design – Wayne State Universit
Chair Interior Design – Wayne State University
Owner studioKuhnen – product : interface : design
I forgot to say that the main issue with loft is when working with surfaces and not solids.
with solids you main loft between closed profiles - the main issue happens when lofting between open profiles.
Claas Kuhnen
Faculty Industrial Design – Wayne State Universit
Chair Interior Design – Wayne State University
Owner studioKuhnen – product : interface : design
@mavigogun wrote:
I hope so- especially to contrast. Did you watch the video? It's cued to the operation. The Fillet previews in yellow as what looks to my Fusion-vocabulary-limited-mind as a series of Lofts or Patches. Check it out.
@cekuhnen My answer was mostly aimed at @mavigogun question above. Fusion is doing pretty much the same it's just hidden from the user. Seems most solid modelers do this and most of the time it probably doesn't matter too much but it would be nice to be able to see the iso curves. Sometimes I need to export models to Rhino for CAM work and occasionally see some pretty bad surfaces, for example an extrusion from a projected edge where a spline's generated. It would be nice to be able to see this in Fusion so you can decide if you want to build in a different way to end up with a cleaner surface. Simple clean surfaces are a lot less likely to cause problems with fillets, booleans etc.
I also see problems with files from customers using Solidworks\Inventor where all the iso curves should align but don't because a mirror or rotate is not around the mid\centre point. It's obvious something's wrong when the isos are visible.
Mark
Mark Hughes
Owner, Hughes Tooling
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I can't show the whole model but here's an example of a solidworks file with a problem. I had a problem with a combine cut in Fusion where it would work on the left side of the component but not the right.
As soon as I opened the file in Rhino and zoom in I can see a misalignment of the ISOs, the not very clean or symetrical fillet around the bottom of the part is a good clue somethings wrong as well. All this is hidden in Fusion, don't know if Solidworks or Inventor let you see ISOs.
Mark
Mark Hughes
Owner, Hughes Tooling
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@HughesTooling To my understanding surface quality also in SW is not ideal.
also while you can NEVER extrude or Bild from projected curves if you need clean geometry in general no matter what app you use
overbvuild trim join and fillet.
Claas Kuhnen
Faculty Industrial Design – Wayne State Universit
Chair Interior Design – Wayne State University
Owner studioKuhnen – product : interface : design
I actually don't think that you can really see the isoprams in SW either.
You cannot edit the CVs to my knowledge.
Seeing the isoprams is really only important when doing surfacing at a higher level.
technically speaking you dont want to work with a surface that has isoprams anyway because this means the surface has spans and this kills the curvature graph display.
correct me if I am wrong
here is another nice look at Fusion build in G2 fillet and manually created edge rounding via Sweep and G2 splines
Claas Kuhnen
Faculty Industrial Design – Wayne State Universit
Chair Interior Design – Wayne State University
Owner studioKuhnen – product : interface : design
I was just commenting on what's in the video and looking closer it probably not ISOs anyway, just watching the video made me think of what I see in Rhino.
I don't want to be able to see the ISOs in Fusion to be able to edit them. It would just be useful so you don't get lulled into a false sense of security making surfaces from edges\projections. I know not to use a projection from a trimmed surface edge but I get models with this problem because the person designing the part hasn't a clue of the surface generated from the edge curve. I see problems in parts that should be symmetrical all the time, a fillet on one side is nice and clean with few ISOs and the fillet on the other side has dense ISOs, probably caused buy a mirror line not being vertical or slightly off centre. If you could see what the surface looked like you could fix it easily. Trying to fix when the design's finished and the errors propagated through several parts is a knightmare.
Might be worth making an ideastation request for a display mode with the ISOs shown just for inspection. I've checked a couple other solid modelers I have and they don't seem to let you view ISOs either.
Mark
Mark Hughes
Owner, Hughes Tooling
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But I think this might be a good idea for an inspection tool!
Claas Kuhnen
Faculty Industrial Design – Wayne State Universit
Chair Interior Design – Wayne State University
Owner studioKuhnen – product : interface : design
I just checked at work and yes the fillet in SW also has a G2 options.
Their G2 is better but also lacks the ability to adjust the shape ...
Quite stunning considering how expensive SW is.
Claas Kuhnen
Faculty Industrial Design – Wayne State Universit
Chair Interior Design – Wayne State University
Owner studioKuhnen – product : interface : design
