>인벤터에서 웨이브 와셔 모델링은 어떻게 하는 것이 좋은지요?
>혹시 참고할 ipt화일이 있으시면 자료실에 부탁드립니다.

웨이브 와셔는 Sean Dotson 사이트에 가면 iPart가 있습니다.
http://www.sdotson.com/uploads/wave%20spring%20wshr.zip
를 다운로드해 보세요.

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>또 솔리드에지에서 SAT로 저장해서 Autocad에서 불러들이면
>치수가 그대로인데 같은 SAT 파일을 인벤터6에서 불러들이면
>1/1000로 줄어듭니다. 인벤터 자체의 문제인듯 한데요…?

제가 file translation 분야는 잘 몰라서, 인벤터 뉴스그룹을
검색해 보니 다음 두 가지 질문/답변이 있네요. 참고하세요.

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Topic: Opening SAT files out of scale
From: Roald Amundson
Date: Sep/22/02 – 19:03 (GMT)

Hi all:

I was wondering if anyone could shed some light on this problem.
Received some sat files from a customer from Solid Edge and
when they are opened they open up in microns, regardless how we try
to open them. The customer says he out put them in inches. My
questions are two fold 1) is there any way to open these files
in inches and 2) is there a way to scale the files to the proper
inch size as a work around. The dimensions show as decimals approx
1000 times to small. I hope this is not to confusing.

Thanks in advance

Roald Amundson

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Topic: Opening SAT files out of scale
From: Jeff Howard
Date: Sep/22/02 – 21:53 (GMT)

Hi, Roald.

The easiest thing to do might be to import and scale a derived part
from that.

If you check, is the model scaled 0.00155 (i.e. 1 / 25.4 / 25.4) or
0.001?

I’m not well versed on the subject and tend to confuse myself
a lot, but I think ACIS internal units are mm, and the first value
of the third line (open in Notepad) is the scale value, so the
value should be

0.001 = micron
1 = mm
25.4 = inch
-1 = unitless

I don’t know if it will help, but if the ACIS scale value is “-1”
IV won’t know which units to use for the document and you can chose
what units are used in the open dialog Options. The only way that
you’d get a .001 scale error is if the exported model was in mm
and you open it as a micron document or a meter model opened as a
mm document, though (????).

Does Solid Edge use a ParaSolid or ACIS kernel? If it’s ParaSolid
and you can get STEP translations you might like it better.
Don’t know if it will help the scale issue, but SAT is not the best
way to get from a ParaSolid modeler into IV.

Jeff

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Topic: ACIS Import – Metric?
From: cascadtx
Date: May/07/03 – 16:11 (GMT)

I wrote an ACIS file containing several 3DSolids out of
AutoCAD 2004. When I open it in IV6, it comes in metric
no matter what settings I have (at least none I’ve tried changing
makes any difference). What’s going on?

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Topic: ACIS Import – Metric?
From: Jeff Howard
Date: May/07/03 – 19:00 (GMT)

This get’s confusing for a simple guy like myself, but I think
the acad file that was written out had units set as mm or mm was
used as an export option.

Anyway, open the .sat in Notepad and look at the third line.
It should like:

1 9.9999999999999995e-007 1e-010

if it’s written out as mm’s.

The first field is the unit scale factor, so

1 = mm,
25.3999… = inch,
-1 = unitless,
etc.

(ACIS is unitless, but uses a default of mm to avoid confusion,
therefore scale factor 1 = mm.)

If this is the case, change the first field to “-1”. This tells
the reading system that the model in “unitless” and you should be
able to spec the units when opening the file. If that doesn’t
do it holler back and we’ll try again. 8~)

인벤터에서 축척을 조절할라며는 ipt 로 저장후 파생 구성요소(derived part)를 사용해 불러올때 옵션이 있다고 설명하고 있죠.

기백님 감사합니다. 3번째 라인에 0.001을 1로 바꾸니 되는군요. 솔리드에지에러인지…인벤터에러인지 모르겠네요