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Fully Constrained Lines change Position when changing parameter value

Message 1 of 6
161 Views, 5 Replies

Fully Constrained Lines change Position when changing parameter value

We have the following problem:


For every parametic design it's important that fully constrained objects stay on the side where you have placed them. Especially for the new configurations.

In my example i have 4 fully constrained construction lines (the line type doesn't matter). When i change the distance to the circle from 0.1 to 0.7 in picture 3 the positions are broken. The change from 0.1 to 0.6 in picture 2 doesn't do anything bad.

Screenshot (57).png

Screenshot (58).pngScreenshot (56).png

In picture 4 i change the distance with my mouse and position of the 4 lines was broken in a new way.

Screenshot (61).png


For us it's a big problem and makes Fusion360 right now kinda unusable.

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Message 2 of 6


please share the file for reply

File > export > save as f3d on local drive > attach to post



Message 3 of 6

Here is the file for playing around with the bug.

Message 4 of 6

@produktionsmanagement Sorry for the inconvenience caused & Thank you for sharing the files . We could reproduce the issue at our end with file provided by you , our team will analyse it further more.
As a work 
around for now  you can change dimension to 0.6 and later 0.7.

We have logged an issue FUS-149328 for it & we are looking for the solution .

"If you find my answer solved your question, please select the Accept Solution icon"


Sameer Babar.
Autodesk Fusion 360 Team

Message 5 of 6

Hello Sameer,

I could put in a very high value like 999mm for the first configuration and then only becoming smaller, but that’s unreliable and not practical in a daily application. Also there is no guarantee that with certain downsizing steps the positions won’t get mixed up.

But I will try it, until the problem is really solved.

Message 6 of 6

So i managed to get a solution that seems working so far. 

When the position of problematic lines is fixed relativ to Zero-Point and only the relevant lines change their position it seems stable.





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