Assembly

Assembly

SaeedHamza
Advisor Advisor
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Message 1 of 11

Assembly

SaeedHamza
Advisor
Advisor

Could anyone please tell me what I'm missing

 

Regards

 

Saeed

Saeed Hamza
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Message 2 of 11

jeff_strater
Community Manager
Community Manager

Hi @SaeedHamza,

 

Can you post your design here?  I'd like to look at especially the non-alignment on the slider joint.

 

One recommendation:  When making those revolute joints, I tend to try to put the joints in the middle of the geometry, not at one side or the other.  This can help prevent some of the conflicts in the joints, where things are not quite precisely aligned.

 

Jeff

 


Jeff Strater
Engineering Director
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Message 3 of 11

SaeedHamza
Advisor
Advisor

Hi Jeff,

 

Thanks for the advice

Here is the file

 

Saeed

Saeed Hamza
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Message 4 of 11

SaeedHamza
Advisor
Advisor

@jeff_strater

 

Here is a screencast that shows a solution, but not the best one possible ( not really functional )

 

Saeed

Saeed Hamza
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Message 5 of 11

TrippyLighting
Consultant
Consultant
Accepted solution

Your attempt to reorient the parts is the reason for the strange behavior.

 

 


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Message 6 of 11

jeff_strater
Community Manager
Community Manager

Well, this was a challenge.  I was able to get it to work, but there is something very funky with this design.  I think it is revealing bugs in Fusion.  The red component has problems because it is not oriented with respect to its own origin.  @TrippyLighting is correct in that those aligns are causing the problems.  

 

In this screencast, I show one way to get this to work, but not without some fiddling.

 

 

In this second screencast, I tried removing all the Move Body and Align Body features, which helps, but does not fix the problem completely:

 

 

Anyway, I attached the design from the first video here, FYI

 

We'll look into the bugs with joints.  Thanks for sharing the design

 

Jeff

 


Jeff Strater
Engineering Director
Message 7 of 11

TrippyLighting
Consultant
Consultant

Hi jeff# I noticed this funky behavior as well and was going to open a new bug thread. If I apply the joints in the order shown in the screencast is works. But if i use a different sequence using as-built joints on one of them (on the vertically oriented link 1) goes wonky, meaning the preview looks fine but when clicking OK the joint symbol jumps to a different location/


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Message 8 of 11

SaeedHamza
Advisor
Advisor

@jeff_strater

@TrippyLighting

 

Thanks guys for these amazing screencasts, they were really helpful

 

The thing is this design is not mine, it was a question in the Fusion 360 ACU exam, and I couldn't solve it in the exam, so I thought you might be able to help me understand what was wrong

But I guess that the capture positions that the guy who designed this model applied were the reason for this behavior after all, because I never had such a problem before in a project that I made from scratch

So if anyone can reach the people who are in charge of the exam, please let them know. Thanks again

 

Regards

 

Saeed

Saeed Hamza
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Message 9 of 11

jeff_strater
Community Manager
Community Manager

follow-up:  This bug has been marked as fixed in our internal builds.  Look for it to appear in an upcoming release.

 

Jeff

 


Jeff Strater
Engineering Director
Message 10 of 11

SaeedHamza
Advisor
Advisor

Good to know

Thanks for your effort

 

And I would like to remind you that it was a file in the ACU exam, so fixing it for the sake of the exam should be done in my opinion

 

Regards

Saeed Hamza
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Message 11 of 11

TrippyLighting
Consultant
Consultant

Good to hear. I do have a question though.

 

 

Would you think we can use an existing model to test whether this has been fixed or would be need to recreate it from scratch to test that this has been fixed ?

 

Ive noticed in previous bugs that I reported and that were fixe that the error still pertained in the old design that exhibited the bug originally. However I was not able to recreate the bug in a new file. This adds a lot of work to testing fixes!

 


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