Opening a file from Autocad to Fusion 360 increases model measurements

[Anonymous]

Hi,

I would like to ask some help on, Why is it that anytime I open .dwg .sat .igs . iges files from AutoCAD to Fusion 360 the measurements INCREASE or changes.

What setting or techniques should I use? (I have attached some images with measurements)
Please Help.
17 x 13 mm447 x 311 mm

[lichtzeichenanlage · Accepted solution]

17.6341in = 447.906514mm. Looks like you're just have to change the document settings in Fusion.

[HughesTooling · Accepted solution]

In AutoCAD you need to set the document units to mm, not sure how that's done now, not used AutoCAD for years. @TheCADWhisperer has helped on this in the past.

Mark

[lichtzeichenanlage · Accepted solution]

@HughesTooling: Just a thought: Wouldn't it also help to switch the document units in Fusion 360 after the import? 

[HughesTooling]

@lichtzeichenanlage If you look at th OPs first image it is in mm in AutoCAD and when opened in Fusion it's scaled up by 25.4mm so setting the document in AutoCAD or scaling down in Fusion are the only real options.

Mark

EDIT Actually Fusion normally assumes unitless drawing are in CM so I wouldn't be surprised if @Anonymous has his document set to inches in AutoCAD.

[lichtzeichenanlage]

Okay - I missed to descriptions below the images. I thought just the dimension weren't shown. It's just not my weather right now 😉

[TheCADWhisperer]

What does the ~dwgunits command report in AutoCAD?

[TheCADWhisperer]

Oops, that should have been -dwgunits (with the preceding - sign).

Sorry, I was responding from tiny iPad earlier and hit wrong button.

AutoCAD Units

[Anonymous]

Thank you. I believe I need more familiarity in import setup for Fusion 360.