AutoCAD Import Object Scale

[kampret06]

i have alot of problem when doing some conversion from inventor to autocad and vice versa. the problem is like this..

 

i want to scale a 3d object but i still don`t know if can do this in inventor so i brought/export the object to *.SAT then insert them to autocad but wow... in autocad the measurement became so wrong.. (small)

 

as an info: i have change the unit setting in autocad to mm (set to match the inventor setting) before i do the insertion of *.SAT to autocad

i change the measurement through menu format > unit > insertion scale

 

and if the i scale the object to follow the right measurement at autocad.. then when i open in inventor it also became so wrong (its huge)

 

but this doesn't happening in export and import using inventor with another 3d package ie: spaceclaim but space claim can't also do the scaling

 

so what did i do wrong here.. and could you point me how to do the right export and import in autocad..

 

thanks

 

 

*i use autocad and inventor 2010 and tested also with spaceclaim 2010

[Dipali]

options>user settings>source drawing unit and target drawing unit

[kampret06]

options>user settings>source drawing unit and target drawing unit

 

i guess you mean this is inside autocad settings

if it was the case.. then i've change it.. changing

tools > option > user preference > insertion scale

 

its just the same with changing format > unit > insertion scale

 

i`ve made both of them same with the unit i set on inventor.. but the result is just wrong in dimensions

 

thanks

[Jeff H]

 

tools > option > user preference > insertion scale its just the same with changing format > unit > insertion scale

 

 

 

format > unit > insertion scale sets the INSUNITS system variable

 

 

 

tools > option > user preference > insertion scale sets the INSUNITSDEFSOURCE & INSUNITSDEFTARGET

 

 

Controls the default scale for inserting blocks and drawings into a drawing.

 

Source Content UnitsSets source content units value when INSUNITS is set to 0.

(INSUNITSDEFSOURCE system variable)

 

If Unspecified-Unitless is selected, the object is not scaled when inserted.

 

Target Drawing UnitsSets target drawing units value when INSUNITS is set to 0.

(INSUNITSDEFTARGET system variable)

 

 

 

 

[irneb]

I think what kampret06 is trying to say is the 2 have the same effect. The defaults are used when InsUnits=0, otherwise InsUnits takes precedence.

 

But it sounds from his description as if he has done everything correctly: i.e. Inventor set to mm, InsUnits=4 (mm), InsUnitsDefSource=4, InsUnitsDefTarget=4. With those settings there should be no variation in scaling between Inventor and ACad. Not using Inventor, I can't say for sure. Though I've got Inventor Fusion together with my Vanilla Acad 2012 and it seems to not give troubles of this sort - no need to fiddle with SAT files either, just click Open in Inventor / Open in AutoCAD.

 

Perhaps ADesk had some issues between these 2 programs and fixed it with fusion.

[ianunderhay]

I had same problem as this on a few occasions. In the end I scaled down the model in autocad by 0,0393700787 (1/25,4)

The model then exported as SAT and then opened in Inventor. All fine now.

[RobDraw]

25.4 is a metric to imperial conversion factor.