Sketch solver in Fusion needs some serious work....

[PhilProcarioJr]

@jeff_strater

Is there a reason for issues with trim tool in cases like this? 

[TMC.Engineering]

I agree completely.  

Maybe there will be a Christmas miracle.  I have a little hope from this recent blog post, at the very end there was this line... " but the core functionality will remain a focus for a majority of our development team."  hope it is ture

@PhilProcarioJr, I'm curious, does making the two points coincident yield a better result over trimming?

[PhilProcarioJr]

@TMC.Engineering

I can't make them coincident because they are offset from projected geometry and I can't link them to the original sketches because Fusion slows down to a crawl if I link to the original sketches. The whole projected lines/geometry thing is so counter productive and broken..... Are there times when projections are nice and come in handy...yes but for normal sketching and relations it makes no sense....no other CAD app I have used makes you project stuff before you can link to it and auto projections turned on is even more of a nightmare.

But either way there is absolutely no reason what so ever for this sketch lines to jump out of place.....

[kb9ydn]

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@PhilProcarioJr wrote:

@TMC.Engineering

I can't make them coincident because they are offset from projected geometry and I can't link them to the original sketches because Fusion slows down to a crawl if I link to the original sketches. The whole projected lines/geometry thing is so counter productive and broken..... Are there times when projects are nice and come in handy...yes but for normal sketching and relations it makes no sense....no other CAD app I have used makes you project stuff before you can link to it and auto projections turned on is even more of a nightmare.

But either way there is absolutely no reason what so ever for this sketch lines to jump out of place.....

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I totally agree.  Fusion relies on projecting WAY, WAY too much.  It's nice in some situations but most of the time it's just obnoxious.

And that thing with trim has to be a bug.

C|

[TrippyLighting]

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@kb9ydn wrote:

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@PhilProcarioJr wrote:

@TMC.Engineering

I can't make them coincident because they are offset from projected geometry and I can't link them to the original sketches because Fusion slows down to a crawl if I link to the original sketches. The whole projected lines/geometry thing is so counter productive and broken..... Are there times when projects are nice and come in handy...yes but for normal sketching and relations it makes no sense....no other CAD app I have used makes you project stuff before you can link to it and auto projections turned on is even more of a nightmare.

But either way there is absolutely no reason what so ever for this sketch lines to jump out of place.....

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I totally agree.  Fusion relies on projecting WAY, WAY too much.  It's nice in some situations but most of the time it's just obnoxious.

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Would you have any examples to substantiate that claim ?

[PhilProcarioJr]

@TrippyLighting

Other CAD apps don't make the user do projections to add constraints to sketch geometry. Personally I could care less how they handle the constraints but adding projections to every linked sketch muddies up your sketches and when you work with complex sketches like I do it makes it a nightmare to see what your doing. Auto projections ends up adding hundreds of lines and arcs all over the place in my sketches...once again making it hard to see what's going on...not to mention the fact that it looks very unprofessional. Sure if your working on simple stuff it's not that big of a deal but when your sketches are very complex it's a huge deal.

[innovatenate]

@PhilProcarioJr Looks like a bug to me too. Can you share the design or maybe a design with just the sketch with me? I can report it to development. One thing to test may be to use the split command to see if you can first split up the sketch entities without the rest of the sketch figures "blowing up." 

I hope that helps. I look forward to your response.

[PhilProcarioJr]

@innovatenate

I sent you a PM

[PhilProcarioJr]

@innovatenate

Here is another bug for you....

[kb9ydn]

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@PhilProcarioJr wrote:

@TrippyLighting

Other CAD apps don't make the user do projections to add constraints to sketch geometry. Personally I could care less how they handle the constraints but adding projections to every linked sketch muddies up your sketches and when you work with complex sketches like I do it makes it a nightmare to see what your doing. Auto projections ends up adding hundreds of lines and arcs all over the place in my sketches...once again making it hard to see what's going on...not to mention the fact that it looks very unprofessional. Sure if your working on simple stuff it's not that big of a deal but when your sketches are very complex it's a huge deal.

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That's pretty much it exactly.  To reference (dimension or constrain) any geometry outside of your sketch requires said geometry to be first projected into the sketch.  It's certainly not difficult to do but it's an extra step that's unnecessary and it leaves extra lines and stuff in your sketches.  For an otherwise very forward thinking 3D modelling software, this feels rather backwards.

C|

[jeff_strater]

Thanks for reporting this, @PhilProcarioJr,

Those are both essentially the same bug.  It's really not a trim bug or a dimension bug but a tangent constraint bug - the tangents are flipping when the sketch solves.  Tangent is an area that is being investigated even now.  I assume that @innovatenate has the model?  We will add it to the set of test cases for this effort.

Jeff

[maritza.ga]

@PhilProcarioJr

Thanks for sharing Phil. 

As Jeff mentioned we have been making some changes to the tangent constraint solve. I have logged a bug and will have the team investigate this issue. Tracking internally FUS-29572. We will keep you updated with changes. 

Maritza Garcia
Experience Design - Fusion 360

[PhilProcarioJr]

@jeff_strater @maritza.ga @innovatenate

Yes @innovatenate has the model.

This is a really important fix, because without it making flash lines, and gutters on forging dies is very very hard to do.

I have been able to work around the issue but again it takes 10X longer to do....and I lose parametrics of everything driven off that sketch....

Thank you for looking into this.

[keqingsong]

Good news! We have a fix for this and it will be available in our Jan update! 

[zodiaceng]

Constraining your blue lines should eliminate this but it definitely shouldn't be happening as bad as it is.

I wholeheartedly agree on necessary projections being retarded. I should be able to dimension or constrain off of other sketch lines or body geometry if I'd like to without having to create projections.