Fully Constrained Lines change Position when changing parameter value

[produktionsmanagement]

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.

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

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

[g-andresen]

Hi,

please share the file for reply

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

günther

[produktionsmanagement]

Here is the file for playing around with the bug.

[sameer_babarNJS6C]

@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"

Thanks,
Sameer Babar.
Autodesk Fusion 360 Team

[produktionsmanagement]

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.

[produktionsmanagement · Accepted solution]

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.

[produktionsmanagement]

@sameer_babarNJS6C  and @g-andresen the problem is still existing with splines. I will upload a new file to show a situation where no workaround is possible so far...

[produktionsmanagement]

So here is the file:

Everytime you connect to spline like that and change the position of the spline with the parameter d4, the problem comes up. 

It's super annoying, because i really need the splines...