Constrain mate fixed the axis

[Anonymous]

I made a V12 engine, the problem is: when i made the constrain between the parts they locked in a group and cant rotate the crankshaft. Did i miss something or the constrain sequence is wrong?

[JDMather]

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@Anonymous wrote:

.... Did i miss something...

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An assembly must include parts.

Do you have a sub-assembly that you have not set to Flexible?

[Anonymous]

In the assemble there are individual parts, only the piston rod hat got several parts(piston rod lower/upper, and 2piece bearing).
how can i check or set it to flexible? I dont understand that sub-assembly, can you explain it?

[JDMather]

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@Anonymous wrote:

In the assemble there are individual parts, ....

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Did you attach any of those parts here?

[mcgyvr]

Posting an iam file is useless if you do not also include all ipt files and any subassembly iam files with it..

The iam file just links to all parts/subs and does not include them in itself..

Example.. 

If you have 2 parts in an assembly you must zip (or use Inventors pack and go functionality) so that you attach those 2 ipt files and the iam file here..

[Anonymous]

Sorry. Here they are.

[WHolzwarth]

That's not all.

Part17 missing

Part18 missing

Connecting_rod_bearing missing

Bolted Connection is missing too, but not really needed.

[Anonymous]

Sorry for my inattention, i'm little tired.
Here they are.

[WHolzwarth · Accepted solution]

This should do it (2015 files). I've seen several issues:

- Not fully constrained sketches

- First parts in IAMs were not fixed

- Underconstrained IAMs

And Insert constraint is easier to look over than a combination of Face mate with Axis mate.

Walter

[Anonymous]

Thanks a lot! 

Its work perfectly.

I try grounded my version's first element and worked well, same as yours solution.