Inventor 2019: Can't choose the axis with the axis-to-axis constraint

[SteffanRJ]

I'm running inventor 2019 and I'm having a problem with my constraints.

I'm just trying to mate axis-to-axis, but for some reason inventor doesn't find the axis. If I try to delete old axis-to-axis constraint, then I'm still not able to make the same constraint. 

Does someone know why this is?

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@SteffanRJ,

marius.gildehaus has edited your subject line for clarity
Original: constraint axis-to-axis does not work

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[WHolzwarth]

No answer will be possible without seeing the files. Zip is needed because of forum problems

[SteffanRJ]

The problem is with every file, take a bolt and screw from content center, there I'm not able to constraint in their axis.

[WHolzwarth]

Normally that's a standard task, and it works. Your case seems to be a special situation.

[SteffanRJ]

exactly, that´s why I'm asking for help. 🙂

[WHolzwarth]

Did you ever locate a lost needle in a haystack?

[admaiora]

Can you show your workflow, with steps, with screnshots?

[WHolzwarth]

One shot into the darkness:

2019 now has directed axis mates. Try the third option or the opposite direction.

This morning I've been stumbling about that, too. It can occur, if other constraints are active besides.

[marius.gildehaus]

Hello @SteffanRJ!

Without a dataset or a Screencast we can't really help you, cause I couldn't reproduce this issue on my machine.

Maybe the hint from @WHolzwarth helped you a little bit.

Thanks!

[SteffanRJ]

https://imgur.com/njspHSY <- this is when I try to use mate, like I have done a thousand times before, the axis is not found.

https://imgur.com/5qCT8yG <- If I use any other constraint, like here when i try insert, then inventor can find the axis

https://imgur.com/Ea5VSbH <- If I try to open my inventor 2017 version, there is no problem.

[SteffanRJ]

So made a screencast where I try all of the constraints, all beside mate can find the axis.

[marius.gildehaus · Accepted solution]

Hello @SteffanRJ!

You can't flush axis, that is not possible cause that is just working with faces.

Switch it back to mate and then it should work.

Thanks!

[WHolzwarth · Accepted solution]

Try again with Mate option in constraint window instead of Flush

[SteffanRJ]

Now i feel a bit embarrassing... Well there you go, I'm blind...

[marius.gildehaus]

No Problem @SteffanRJ!

Sometimes we all have that moments where the solution is directly in front of us but we just miss it 

Thanks!

[SteffanRJ]

Yeah, funny how you can stare youself blind on something. But tanks for the help, and great tip with screencast, awsome tool. 

[Anonymous]

To be fair, this is a really dumb feature. I mean why is that step even needed? It must have defaulted to the "Mate" mode in the previous releases because I just had the same issue and have been ****ting up our company chatroom trying to figure this out. The only time I use that is to flip the mate.  It should NOT lock you out from making the mate to begin with...

[ChrisMitchell01]

Note that in 2019.2 the last used constraint behavior is now remembered; if any of you are using 2019.2 then this may be coming into play too.....

-Chris

[WHolzwarth]

Hi Chris,

I didn't test it, perhaps you may know the answer.

What happens, when in an assembly done with 2018 or earlier an axis mate is edited now in 2019. Is there a risk of changing directions?

[ChrisMitchell01]

Hi Walter,

If you edit an existing constraint & simply hit Ok then it should remain as it was during creation as opposed to being changed to whatever the last used/remembered settings are; if it doesn't then that's a bug. Other than that I it'll depend on what options you select during edit.

-Chris