TechDraw Module

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Preferences-techdraw.svg

FreeCAD is primarily a 3D modelling tool. There are times, however, when we must produce 2D drawings for documentation, contracts, permits, etc. The Technical Drawing workbench (TechDraw) is used to produce basic technical drawings based on the 3D model. Each drawing is a Page, and a Page contains many Views of Drawable Objects. The list of Drawable Objects includes Part::Features, PartDesign::Bodies, App::Part groups and Document Object groups.

Dimensions and hatched areas can be added to Views.

Note if your primary goal is the production of complex 2D drawings, you may wish to consider a dedicated tool such as LibreCad, QCad, TurboCad, etc.

available in version 0.17


TechDraw Workbench Example.png


Pages

These are tools for creating Pages.

Views

These are tools for creating Views.

  • Techdraw-view.png New View: Adds a 2D View of a one or more Drawable Objects.
  • Techdraw-projgroup.png New Projection Group: Invokes a dialog for creating Views of one or more Drawable Objects from multiple directions.
  • Techdraw-viewsection.png New Section: Adds a cross-section View of one or more Drawable Objects.
  • Techdraw-viewdetail.png New Detail: Adds a detail View of a portion of an existing View.
  • Techdraw-draft-view.png New Draft: Adds a View of a Draft module object.
  • Techdraw-arch-view.png New Arch: Adds a View of a Arch module Section Plane object.

Clips

These are tools to create and manage clipped views.

  • Techdraw-clip.svg Clip: Inserts a clip group into a Page.
  • Techdraw-clipminus.svg ClipMinus: Removes a View from a clip group.

Dimensions

These are tools for working with Dimensions. Linear dimensions can be based on two points, one line or two lines.

  • Dimension Radius.png New Radius: Adds a Radius dimension to a circle or circular arc.
  • Dimension Diameter.png New Diameter: Adds a Diameter dimension to a circle or a circular arc.
  • Dimension Angle.png New Angle: Adds an Angle dimension between two straight edges.
  • Dimension Link.png New Links: Links 1 or more Dimensions to 3D geometry.

Import/Export

These are tools for exporting Pages to other applications.

Decoration

These are tools for changing the appearance of Pages and Views.

  • Techdraw-hatch.png Hatch Area: Applies a hatch pattern from a file to a Face.
  • Techdraw-image.png New Image: Inserts a png/jpg image into a Page.
  • Techdraw-toggleframe.png Toggle Frames: Turns View frames and labels on or off in a Page.

Additional features

  • Hatching: TechDraw supports a number of hatching techniques.
  • Line Groups: default weights can be assigned to various line types.

Preference settings

The TechDraw module has a preferences screen to adjust default values.

Scripting

The TechDraw module features a Python API so you can use its functions in scripts and macros.

Limitations

  • TechDraw drawings and Python API are not interchangeable with the Drawing module. It is possible to convert Drawing Pages to TechDraw Pages using Python (moveViews.py). It is possible to have both TechDraw and Drawing Pages in the same FreeCAD document.
  • There are minor differences in specifying Editable Texts in Templates compared to the Drawing module. See forum discussion here.
  • TechDraw is available starting with FreeCAD 0.17.
  • Do not Cut/Copy/Paste TechDraw objects. This does not generally work out well.

Workarounds

  • None required at the moment.


Keep up with TechDraw plans and developments. Visit the TechDraw Roadmap.