topic Re: Mate constraint in Inventor Forum

Mate constraint

Anonymous — Tue, 12 Jul 2016 13:17:32 GMT

I know the solution to the problem. But I must know the reason to the problem.

Why these two faces are refusing to mate?

Re: Mate constraint

CCarreiras — Tue, 12 Jul 2016 13:18:04 GMT

What's your opinion about that?

Re: Mate constraint

Anonymous — Tue, 12 Jul 2016 13:24:38 GMT

I made many models to check my opinion and I was found it was not true.

Mate/Flush faces must perpendicular to adjacent faces I fond condition was not true.

Re: Mate constraint

CCarreiras — Tue, 12 Jul 2016 13:24:12 GMT

Basic... different angles

Re: Mate constraint

CCarreiras — Tue, 12 Jul 2016 13:28:20 GMT

@Anonymous wrote:

I made many models to check my opinion and I was found it was not true.

Mate/Flush faces must perpendicular to adjacent faces I fond condition was not true.

Whaaat???!!! Of course is true!!!... the faces must be parallel, 0 deg between them...

Re: Mate constraint

Anonymous — Tue, 12 Jul 2016 13:54:10 GMT

It has shown adjacent faces are perpendicular to Mate/Flush faces. Simple trail model is attached.

Re: Mate constraint

JDMather — Tue, 12 Jul 2016 13:46:05 GMT

I thought we already covered this a couple of weeks ago?

Re: Mate constraint

Anonymous — Tue, 12 Jul 2016 14:01:28 GMT

I thought we already covered this a couple of weeks ago?

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Same model but different issue. If you want I can pinpoint the issue.

Re: Mate constraint

CCarreiras — Tue, 12 Jul 2016 14:08:46 GMT

what's your question now!!

It's just a picture!!!!!!!! it's the "contact" faces the one's who matters... only the 2 faces you pick count for the constraint.... all the others doesnt enter in all this!!!!

Re: Mate constraint

Anonymous — Tue, 12 Jul 2016 16:15:54 GMT

only the 2 faces you pick count for the constraint.... all the others doesn’t enter in all this!!!!

Basic... different angles

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Confusing

Re: Mate constraint

CCarreiras — Tue, 12 Jul 2016 16:25:09 GMT

how old are you?

Re: Mate constraint

Anonymous — Tue, 12 Jul 2016 16:47:16 GMT

This is irreverent to the subject.

Also a solution to a question should be ACCEPTED AS SOLUTION by the questioner only.

Re: Mate constraint

CCarreiras — Tue, 12 Jul 2016 16:47:31 GMT

Yes, can be relevant... because the level of knowledge and experience. Btw... i'm 40 something, there's no problem to say it.

And... YES and No, if we are sure the answer is correct, sure we can and must... if you make a question about something you dont know, how are you to evaluate if the answer is rigth or wrong?... This is a forum to help everybody, not just you.

Re: Mate constraint

Curtis_Waguespack — Tue, 12 Jul 2016 17:11:55 GMT

@Anonymous wrote:

only the 2 faces you pick count for the constraint.... all the others doesn’t enter in all this!!!!

Basic... different angles

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Confusing

Hi fiatnm,

This can be confusing when angles are just slightly different and appear the same, because Inventor requires things to be perfect. In the real world your parts might fit just fine, but they might not Mate perfectly in Inventor.

In these cases there are generally 2 options:

1) edit the part and make the angles match by dimensioning something differently, etc.

2) use a different assembly constraint solution.

For option 2, in this case here are 2 suggestions:

You could Mate workplanes
or Mate an edge and a face, which would result in the slide being just slightly off center.

Attached is an example of both.

I hope this helps.
Best of luck to you in all of your Inventor pursuits,
Curtis
http://inventortrenches.blogspot.com

Re: Mate constraint

Anonymous — Tue, 12 Jul 2016 17:07:05 GMT

This is a forum to help everybody, not just you.

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This forum is dedicated only for subject matter purposes.

A solution to a question has to be understood by the questioner. Then only questioner can ACCEPT that AS SOLUTION. Questioner can’t ACCEPTED AS SOLUTION because somebody has understood that.

Finally there is no demand here, only request. Choice is up to mentors.

Re: Mate constraint

CCarreiras — Tue, 12 Jul 2016 17:42:57 GMT

But the answer is correct and answers your question, so... is accepted like correct...

It's a choice, no demand, if you are not satisfied, if you not agree with this forum rules, you can go to other forum... or to have a inventor course instead.

This is a forum for professional people, that pays a lot for softwrae, to expose their problems, their questions, real world questions, this is not a inventor course, nevertheless, all the people are welcome...

so, if it was confusing... another try... to teach the student:

What you can do:

Fix the angles to have parallel faces, or, use central planes between the two parts to center both.

Re: Mate constraint

Anonymous — Tue, 12 Jul 2016 18:36:29 GMT

Curtis_Waguespack wrote:

Inventor requires things to be perfect.

Ccarreiras wrote:

Conflict with Mate1

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It is a great opening to a solution to the problem. Now I can understand.

Thank you

Re: Mate constraint

Anonymous — Tue, 12 Jul 2016 19:05:56 GMT

Basic... different angles.

If angles are different what is the matters?

Conflict with Mate1

It is this word carries the correct message.

In order to a solution should be understood wording has to be more precise.

Re: Mate constraint

CCarreiras — Tue, 12 Jul 2016 21:15:34 GMT

Can you explain better wht you mean?

Re: Mate constraint

CCarreiras — Tue, 12 Jul 2016 22:30:46 GMT

@Anonymous wrote:

Basic... different angles.

If angles are different what is the matters?

What??!!!!! mate needs two parallel faces it's a BASIC concept... if the angle is different, whats is the matters? you must be joking!!

Conflict with Mate1

It is this word carries the correct message.

In order to a solution should be understood wording has to be more precise.

Read the statements,more precise is impossible...

(In this case,sometimes is not so clear, but with some experience and brains, everybody can nderstand all of errors messages)