vincoli o giunti?

[Catafratto]

by now the 2015 version of inventor is coming and I realize that I have never "joined" anything, preferring to continue using the old constraints. apart from some shy initial test I have never studied with some calm the new method of assembly components, while being curious. Is anyone using it? Who tried it happily, or did he abandon it? Constraints and joints mixed complicate life to the designer and colleagues who have to change the axioms of others?
I am very interested in your opinions, impressions and experiences.

Greetings to everyone!

 

[laura888]

I like, in any case binding becomes very simple and cmq use both the constraints and joints.

greetings to you

 

[Catafratto]

I like, in any case binding becomes very simple and cmq use both the constraints and joints.

greetings to you

Okay, I'll try. . Thank you.

greetings

 

[Luca862]

I take this old post...
as a result of the experience you prefer to use constraints or joints?
I press that I used them very little and I find myself better with constraints

 

[Sleepers]

[Mi appendo a questo thread, senza aprirne uno nuovo]from a year around, in addition to the "usual" constraints, I started using joints; I insert very few, maximum three or four together and only for simple, cylindrical or sliding connections, to simulate some movement by hand moving the components (I insert limits) where I know there will be no changes or variations.

I always have a strangeness, randomly, that I can't understand and replicate.
I insert a joint with its movement limit, and I verify that it functions by hand moving it. I continue to add and bind pieces to the assembly, and at some point (in the same working session, or reopening a saved set) I find that the joint has lost a limit (sometimes the beginning, sometimes the end), the relative checkbox is disabled [ ] and you delete the value I entered. I happen practically always:-(

looking and reading around, I found this discussion on the autodesk forum with my own problem, problems with using the limits of the slide joint connection where they hypothesize "it's possible that your assembly isn't fully constrained" and "it sounds like some sort of conflicts among joints or constraints". (I'm still burning if I find anything else)

I have tried to understand more, simplifying and reducing possible conflicts by creating a minimum set, to reproduce the problem and limit the pieces/shops/joints to be examined; even here I turn off a limit but not always. I can't understand what it depends on and how to avoid it. hand set the values, starting the checkbox [x], for a while it works, then every now and then he comes back to do what he wants.

I'm using inventor 2019, but soon I'll have to go to a newer version (I think I'll go to 2023) and see if anything changes.

Do you have any ideas?
use joints? Does the same thing happen to you?

speaking more generally, I noticed that some commands in a certain sense overlap (wins/joints, extrusion/beam etc.) even with some difference, and you can get to the same result with different functions. the question may seem obvious, but in what cases (and why) do you choose to use one or the other?

Thank you.

 

[DrBarde]

Good morning.

as a problem I have not yet found, I use constraints and joints together. the rule I gave me is ''what takes less to use''. I have not had a big problem today, indeed, I have very limited the number of reports.

 

[Sleepers]

I use constraints and joints together. the rule I gave me is ''what takes less to use''. I have not had a big problem today, indeed, I have very limited the number of reports.

Yes, the advantage of a joint is that it saves you a couple of constraints.
On the other hand, working changes and breaking relationships, it seems it is more difficult to rebuild them.

 

[DrBarde]

Yes, the advantage of a joint is that it saves you a couple of constraints.
On the other hand, working changes and breaking relationships, it seems it is more difficult to rebuild them.

sincerely, I have never found any bond or joint that is difficult or easy to rebuild.
If the project is entirely mine, it is easy, if it is not, it is impossible. This is because it is difficult to get into others' heads.

 

[Sleepers]

I always have a strangeness, randomly, that I can't understand and replicate.
I insert a joint with its movement limit, and I verify that it functions by hand moving it. I continue to add and bind pieces to the assembly, and at some point (in the same working session, or reopening a saved set) I find that the joint has lost a limit (sometimes the beginning, sometimes the end), the relative checkbox is disabled [ ] and you delete the value I entered. I happen practically always:-(

I just finished scrolling the autodesk forum, and it looks like a common problem (without certain solutions, if not cancel joints and use constraints or use joint protection):

Inventor 2018 Joint Tool- Losing Angular Limits inside the assembly

I have an issue with a Fanuc robot assembly inside Inventor. I've setup the model up using joints for constraining the limits of the robot arm, but I find that it keeps losing the angular limits that I've placed on the rotational joint. I then put the limits back in only to later find out that...

forums.autodesk.com

Slider Joint Linear Limits not working in Inventor 2020

I have an assembly with a flexible sub-assembly and non-flexible assembly within it. I am having a problem getting the linear limits to work with the sub assy in a flexible state. I am placing a joint between a not flexible sub assy in the main assy and part in the flexible sub assy. When I make...

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11-08-2014
hi! i have seen this behavior before. the limits are violated in order to have smoother solve result. unfortunately, it is considered a limitation right now. we are aware of this request and we are actively seeking improvement here.

01-22-2019
the issue is that actually, there isn't a safeguard to prevent it from happening by default. you can right-click on a given joint and check "protected." it may reduce the chance that the angular limits are violated but i am not sure if it would obey it.
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