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Autodesk Fusion 360 Question
Posted: Fri Jan 30, 2015 3:37 pm
by droo
Chaps,
This is probably a Fusion 360 problem but when I model something in Fusion 360 and measure it all is good and the correct size.
When I export it as an STL then import it to Simplify3d it is MASSIVE like 20 times to big.
Anyone got any clue ?
Thanks,
Drew.
Re: Autodesk Fusion 360 Question
Posted: Fri Jan 30, 2015 3:38 pm
by ssayer
25.4x to be exact (that should tell you where your trouble lies).
Re: Autodesk Fusion 360 Question
Posted: Fri Jan 30, 2015 3:49 pm
by droo
ssayer wrote:25.4x to be exact (that should tell you where your trouble lies).
unfortunately not, please put me out my misery I have been digging through the menu's with no luck !
Re: Autodesk Fusion 360 Question
Posted: Fri Jan 30, 2015 5:26 pm
by jimc
your modeling in mm and you have s3d defaulted to inches. there are 25.4mm in an inch
Re: Autodesk Fusion 360 Question
Posted: Sat Jan 31, 2015 5:40 am
by droo
there does not seem to be a way to set simplify3d to work in mm for importing objects ?
am i stuck with just scaling it ?
Re: Autodesk Fusion 360 Question
Posted: Sat Jan 31, 2015 7:06 am
by jimc
Yes its in file/prefrences. There should be an option for preferred units and if you want to auto scale or not.
Re: Autodesk Fusion 360 Question
Posted: Sun Feb 01, 2015 10:27 am
by droo
I'm using the mac version - theres no options like that in the preferences.
Wonder if theres much difference between the mac and windows version ?
Re: Autodesk Fusion 360 Question
Posted: Sun Feb 01, 2015 11:36 am
by jimc
Sure there is. I am on mac version as well
Re: Autodesk Fusion 360 Question
Posted: Sun Feb 01, 2015 11:47 am
by dsegel
This is the opposite behavior of what you would expect if you were modeling in inches instead of mm.
Not sure about the Windows version, but the Mac version of S3D assumes your model is in mm, and will ask to scale it up if it's too small. There's no way to change that to go the other direction; if a model is too big it will just warn you that it doesn't fit on the bed.
STL files themselves have no units - the scale is arbitrary, it's just a bunch of numbers - so a model could be defined as "24 units wide", but it's up to the slicing software to determine if that's 24 inches or 24mm. If S3D comes across a model that is really small, like 4 units wide, it assumes it's supposed to be inches and asks if you want to scale it up by 25.4.
That all being said, if you go into Preferences for Fusion 360, you can set it to use inches or mm under the "Default Units" section. When you freshly install it, it's set to mm. What are the dimensions of the object you're modeling? Are you sure it's not just huge in Fusion 360 and you're zoomed out?