topic Re: Can't remove Suppression from Constraint in Inventor Forum

Can't remove Suppression from Constraint

Vagulus — Thu, 06 Sep 2018 08:32:32 GMT

I Suppressed a constraint in my project using RMC and

When I try to remove the suppression I RMC on it and get

and I can't unsuppress. Why, and how do I unsuppress the constraint?

Thanks

Re: Can't remove Suppression from Constraint

CCarreiras — Thu, 06 Sep 2018 09:16:00 GMT

Hi!

Try to restart inventor, because that is the way to suppress/unsuppress constraints.

Re: Can't remove Suppression from Constraint

Vagulus — Thu, 06 Sep 2018 09:21:57 GMT

I tried that first up. Then I re-booted the PC. Still have the same problem.

Re: Can't remove Suppression from Constraint

CCarreiras — Thu, 06 Sep 2018 09:37:24 GMT

This only happens in one particular constraint, or you have that behavior in every one?

Re: Can't remove Suppression from Constraint

TheCADWhisperer — Thu, 06 Sep 2018 10:08:33 GMT

Attatch your assembly here and end all doubt.

Re: Can't remove Suppression from Constraint

Vagulus — Thu, 06 Sep 2018 11:08:44 GMT

Sorry for the delay but AI simply will not Pack and Go. I tried running repair but I am not happy with that either. Anyway, I have zipped the folder - everything - ant attached that.

The file in question is AE-000-0000.iam - it's an assembly largely of assemblies.

This is the constraint I want to unsuppress - larger piccy attached. Hope this works okay.

Re: Can't remove Suppression from Constraint

WHolzwarth — Thu, 06 Sep 2018 12:19:18 GMT

The assy is not easy to overlook, because of some duplicate files, and missing CC members.

Unsuppressing this constraint (Mate:63) from top level assy fails, but try this:

- Open AE-005-0000.iam

- Expand Relationships

- Unsuppress Mate:63

I could get it back to activity this way.

Additional comment: You're drowning in too many constraints. Building sub-assys and using component patterns reduces them drastically

Re: Can't remove Suppression from Constraint

Vagulus — Thu, 06 Sep 2018 13:07:29 GMT

Thanks a lot. That got the system working. Great relief.

I take your point about many restraints. I'll have to look in to Component Patterns. I haven't heard of them.

Re: Can't remove Suppression from Constraint

Vagulus — Thu, 06 Sep 2018 22:43:57 GMT

@WHolzwarth wrote:
Additional comment: You're drowning in too many constraints. Building sub-assys and using component patterns reduces them drastically

That assembly AE-000-0000.iam was largely composed of sub-assemblies. I have always thought that a natural progression from individual part to complete assembly. As for Component Patterns, were you referring to ? I do use these - perhaps not often enough. Certainly, I have not tried that arrowed one. I'll have a play.

Thanks for making the effort to include the Additional comment. I don't know anyone else who uses AI. SWX has a stranglehold wherever I look . Advice from Senior Players is invaluable.

Re: Can't remove Suppression from Constraint

WHolzwarth — Fri, 07 Sep 2018 07:16:04 GMT

You're pointing to Sketch driven pattern. This can be used in special cases, but more common are rectangular or circular patterns.

Let's have a look. Below is AE-005-0000.iam shown in initial state. Relationships are about 1.5x screen height.

But this can be combined to only 3 sub-assys. Now relationsships are much less, and could be compressed still more by combining axial mates and face mates to insert constraints or joints.

At sub-assy level, a rectangular pattern for bolting parts makes sense. Look at the start

And the end. Yet more is possible, if no constraints vs origin planes are used

Re: Can't remove Suppression from Constraint

Vagulus — Fri, 07 Sep 2018 08:14:28 GMT

Thanks for going to all that trouble. It made for interesting study.

I had a go at that bearing mount as a subassembly

and my constraints differ a little from yours.

(black arrows) Insert Bearing

(red arrow) Insert Circlip

(orange arrows) Mate the two plates

(green arrows) Bolt, washer, nut

(blue arrow) Replicate bolt, washer, nut

Some of yours I do not understand:

(green arrow) How did you insert the nut and the washer at the same time?

(orange arrows) You used two constraints - I inserted the circlip with iMates.

(red arrow) What's this Rigid thing? Some sort of mate between the bearing plate and the lower plate, but what sort?

Re: Can't remove Suppression from Constraint

WHolzwarth — Fri, 07 Sep 2018 11:06:22 GMT

Some answers between the lines (in magenta)

@Vagulus schrieb:

...

I had a go at that bearing mount as a subassembly

and my constraints differ a little from yours.

(black arrows) Insert Bearing

Can be collapsed further to a single Insert

(red arrow) Insert Circlip

Ok, but would need another angle constraint or a surface mate

(orange arrows) Mate the two plates

Needs 3 Mates, but could be done similar as the circlip, or with a single Rigid Joint. In 2019, there's a new functionality (Insert with rotation lock). In many cases, the parts are aligning very well without an angular setup. Right now, I didn't use that very much, but perhaps it's better using than Rigid.

(green arrows) Bolt, washer, nut

Basically ok, but rotation still is possible

(blue arrow) Replicate bolt, washer, nut

Yes

Some of yours I do not understand:

(green arrow) How did you insert the nut and the washer at the same time?

You're right. Another insert constraint is needed. I can't see no more, if it was already missing in your original file set

(orange arrows) You used two constraints - I inserted the circlip with iMates.

I'm preferring normal constraints, not much experience here with iMates. I used face mate for angular placement

(red arrow) What's this Rigid thing? Some sort of mate between the bearing plate and the lower plate, but what sort?

As mentioned above, it's an option for fixing two parts versus one another with only one relationship. Some practicing is needed with using that.

EOR (End of reply)

Re: Can't remove Suppression from Constraint

Vagulus — Sat, 08 Sep 2018 08:37:12 GMT

Thanks again.

I found the joint button. You're right. There's a bit of practice needed here.