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TechDraw 工作台

From FreeCAD Documentation
This page is a translated version of the page TechDraw Workbench and the translation is 3% complete.
Outdated translations are marked like this.
TechDraw workbench icon

简介

TechDraw 工作台被用来从来自其他工作台(比如Part, PartDesign, 或 Arch)创建的 或 从其他应用程序导入的3D模型生成基本的技术图纸。每张图纸是一页,可以包含可绘制对象(比如Part::Features, PartDesign::Bodies, App::Part groups 和文档对象组)的各种视图。得到的图纸可被用于诸如文档、制造说明、合同、许可等。

尺寸标注、剖面、填充区、注解和SVG符号都可以加到图纸中,而这些又可以进一步导出到不同的格式,如 DXF, SVG, PDF.

如果你的主要目标是产生复杂的2D图纸和DXF文件,并且不需要3D建模,FreeCAD可能不是正确的选择。你应该考虑一个用于绘制工程草图的专门的软件,如 LibreCADQCad.

Snapping

introduced in 1.0: The TechDraw Workbench has a snapping feature. It can be used to automatically align views, section views and dimensions when positioning them by dragging with the mouse. With Snap View Alignment enabled (default) in the preferences, views will snap to alignment with other views when close enough (View Snapping Factor setting). Dimensions are also snapped to other parallel dimensions and the dimension text can be snapped to the middle of the dimension line. Snapping can be temporarily disabled by holding down the Alt key.

Tools

页面

TechDraw Views

  • Section View: inserts a cross-section view of an existing view.
  • Detail View: inserts a detail view of a portion of an existing view.
  • Share View: shares a view between multiple pages.

Views From Other Workbenches

Dimensions

Some dimension tools are listed under Attributes/Modifications, Format/Organize Dimensions and Annotations below.

Hatching

  • Image Hatch: applies a hatch pattern from a file to a face.
  • Geometric Hatch: applies a hatch pattern to a face using an Autodesk PAT specification.

Symbols

  • Weld Symbol: adds welding specifications to an existing leaderline.

Stacking

Aligning

Attributes/Modifications

  • Extend Line: extends a cosmetic line or centerline at both ends.
  • Shorten Line: shortens a cosmetic line or centerline at both ends.
  • Area Annotation: calculates the area of selected faces and inserts an area annotation.
  • Customize Format Label: customizes the formatting of a balloon text or dimension text. GD&T symbols and other special character can be added.

Centerlines/Threading

  • Cosmetic Arc: adds a cosmetic counter clockwise arc based on three vertices.

Format/Organize Dimensions

  • Remove Prefix: removes all symbols at the beginning of the dimension text.

Annotations

Add Lines

Add Vertices

  • Quadrant Vertices: adds Cosmetic Vertices at quarter points of selected (circular) edges.

Miscellaneous

Obsolete Tools

  • Move View: moves a view and its dependents to a different page. Not available in 1.0 and above.
  • Turn View Frames On/Off: turns the display of View frames, labels and vertices on or off. Not available in 1.1 and above.

Additional features

Preferences

  • Preferences: preferences for the default values of the drawing page such as projection angle, colors, text sizes, and line styles.

Scripting

The TechDraw tools can be used in macros and from the Python Console. For more information see:

Limitations

  • Do not cut, copy and paste TechDraw objects in the Tree View as this generally does not work out well.
  • Do not drag TechDraw objects in the Tree View with the mouse.

Tutorials

A "few" added lines of code result in a tool like the Macro TemplateHelper.

Video tutorials by sliptonic

Development

Do you want to know about the future of the TechDraw Workbench? Visit the TechDraw Roadmap Page to learn more.