Could anyone please tell me what I'm missing
Regards
Saeed
Saeed Hamza
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Assembly
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
Hi Jeff,
Thanks for the advice
Here is the file
Saeed
Saeed Hamza
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Here is a screencast that shows a solution, but not the best one possible ( not really functional )
Saeed
Saeed Hamza
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Accepted solution
Your attempt to reorient the parts is the reason for the strange behavior.
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
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/
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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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
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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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!
