Inventor milimeters and real world milimeters

[aki.maxis]

Hey, guys, 
I'v suddenly ran into problem. Not a big deal, but still it's frustrating. 
When I transfer something that in real world is 10 milimeters in Inventor it becomes 100. And if I want to (for example 3d print some parts) I have always to scale 10 times, because inventor 10 milimeters are 1 in the real world. Why and how to fix it?

[admaiora]

Hi Aki,

with "transfer" do you mean "import"?

You can set the unit in the import process.

I hope that it can helps you.

[aki.maxis]

After all the problem is somewhere:
how to change inches to milimeters maintaining value. If it was 43,5 in inches tu convert to 43,5 in milimeters. Thanks in advance 

[JDMather · Accepted solution]

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@aki.maxis wrote:

When I transfer something that in real world is 10 milimeters in Inventor it becomes 100. And if I want to (for example 3d print some parts) .... Why and how to fix it?

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What do you mean "transfer something"?

Import?

Export?

File type?

You mention 3D printing.
When Save Copy as Type *.stl did you set the Units in Options?

Attach your files here and end all doubt.

(you haven't even indicated what version of Inventor and Service Pack)

[JDMather]

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@aki.maxis wrote:

....
how to change inches to milimeters maintaining value....

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Type in the desired units.

43.5 in

[PaulMunford]

Inventors native units are cm - whatever the party's units are set too.

If you don't set scale on import/export (or inventor can't figure it out) Inventor will assume 1 unit = 1 cm. In your case making everything 10 times too big.

If you can't figure out how to set the scale, post your workflow here and well see if we can help!

[aki.maxis]

Thanks! I had totally forgot that there's an "options" button down there while importing