DXF Import into FreeCAD

Introduction

• This says that DXF importer is available in FreeCAD since FreeCAD 0.16
• For earlier verion, follow this importer installation: https://github.com/yorikvanhavre/Draft-dxf-importer

Practice

When selecting units in LibreCAD, select inches as the unit.

This is the Edit->Current Drawing Preferences window:

4" square with hole drawn in LibreCAD.

4" square with hole imported into freecad. Note that dimensions appear. The DXFs also appear as dumb objects, with dimenions - not FreeCAD editable sketches.

Bugs

FreeCAD thinks everything it imports is in mm. The CEB Press/Current Downloads files for the brick press from 2014 are in inch units - but LibreCAD dimensions are the same whether inches or mm - in which sense the LibreCAD files do not have an absolute dimensioning system. To allow for correct import to FreeCAD, the LibreCAD files of the brick press need to be scaled by a factor of 25.4 - the number of mm per inch.