CAD Forum - tips, tricks, discussion and utilities for AutoCAD, Inventor, Revit and other Autodesk products []
CZ | EN | DE
Login or
  Visitors: 3371

CAD tip CAD tip # 12421:

Question CAD 
 %  platform  category 
Q - question

Wrong units in an imported DXF file.

A - answer When handing over CAD data between special CAD/CAM application you may face the problem of improper interpretation of measuring units - the software application e.g. expects mm but the DXF contents is read in inches or vice versa.

If you cannot influence units setting of the transferred (exported, imported) DXF file in the source or target CAD application, you may help yourself with a simple manual change in the DXF text file (does not apply to binary DXF files).

Open your DXF file in a text editor (e.g. Notepad, not Word!) and search for the line referencing the INSUNITS variable - i.e. the string $INSUNITS. This setting defines the units type. The most typical values - the value of 1 represents inches (in), the value of 4 represents millimeters (mm). By overwriting this value and by saving the edited version of your DXF file you can change units used for interpreting the contents of the imported DXF file.

Inches (imperial units):


Millimeters (metric units):

100% *  CAD 
12.11.2019    15255×  
Prices - CAD eShop:
applies to: AutoCAD · Inv.Fusion360 ·

See also:
Tip 13541:Using Twinmotion from Revit to visualize other types of 3D scenes.
Tip 13274:How to switch the DWG TrueView viewer to the classic user interface, without ribbon?
Tip 13228:DWG or DXF file exported to/from Fusion 360 has incorrect size (scale, 10x larger/smaller).
Tip 13173:How to convert projection of a 3D model to a 2D DXF drawing?
Tip 12588:Which CAD formats can be be translated in Fusion 360 even without the cloud, offline?

Back   All CAD Tips

Have we helped you? If you want to support the CAD Forum web service, consider buying one of our CAD applications, or our custom software development offerings, or donating via PayPal (see above). You may also add a link to your web - like this "fan" link: CAD Forum - tips, utilities, blocks for Autodesk products
CAD:    OS:    Categ: 
Text:  FAQ glossary   

Extend your AutoCAD LT productivity with our popular add-on
CADstudio LT Extension More info

Please use these tips at your own risk.
Arkance Systems is not responsible for possible problems that may occur as a result of using any of these tips.