Drawing Dimensioning Addon

The Drawing Workbench was superseded by the TechDraw Workbench in FreeCAD 0.17. While both workbenches are included in v0.17, the Drawing Workbench is no longer maintained, and may be removed in future versions of FreeCAD. Users are advised to make the switch to the TechDraw Workbench which also includes dimensioning and annotation tools.

Introduction

Welcome to the FreeCAD_drawing_dimensioning wiki! Intended work-flow:

• create a drawing page and a drawing of the part using the drawing workbench
• switch to the drawing dimensioning workbench to add dimensions to that drawing

The Drawing dimensioning workbench adds powerful dimensioning and annotation tools to the Drawing Workbench (see forum thread).

Features

• linear dimensioning
• circular and radial dimensioning
• angular dimension
• center lines
• adding, editing and moving dimension text
• deleting dimensions
• draw a dimension or a symbol anywhere on the drawing with "Add grab point"

Limitations

• no parametric updating, if the drawing is updated the dimensions need to be redone
• only works with FreeCAD version 0.15 and newer

GUI Tools

Add linear dimension Add linear dimension

Add linear dimension stack Add linear dimension stack

Add circular dimension Add circular dimension

Add radius dimension Add radius dimension

Add angular dimension Add angular dimension

Add center lines Add center lines

Add center line Add center line

Add note with circle Add note with circle

Add grab point Add grab point

Add text Add text

Add tolerance to dimension Add tolerance to dimension

Linear dimensions

Linear dimensions / Linear dimension stack

Upon clicking on linear dimensions or linear dimension stack you will get a menu with different choices. repeat: If checked the menu won't close after defining one dimension Grid Options: allow you to snap the dimensions to a grid

grid on will toggle the visibility of the grid

spacing: will define the spacing of the main grid (default: 1 mm)

display period: will define how often the lines are displayed (default: 20)

color: line color of the grid lines

line width: line width of the grid lines (default: 0,15) Unit Options: will define the units of the dimensions

Edit > Preferences > Unit: use same units as defined in FreeCAD preferences

mm: force units to be in mm

inch: force units to be in inch

m: force units to be in m

custom: use custum scaling of units (default: 1/mm) Preferences: define preferences of the dimension appearence

compact:

format mask: changes the format of the dimension (default "%(value)3.3f"). Overwrite with manual text possible

arrows: changes arrow style (auto/in/out/off)

auto place text: place dimension text manually

comma: use comma instead of point

gap: (default: 2)

overshoot: (default: 1)

arrowL1: first Length of arrow (default: 3)

arrowL2: second length of arrow (default: 1)

arrowW: width of arrow (default: 2)

strokeWidth: change line with of dimension lines (default: 0,3)

lineColor: change color of dimension lines

text properties: choose font name, font size and color (default: Verdana, 3.6, red)

auto place offset:

Set as default: Accept settings as default

Tipps:

• changing the placement of the dimensions afterwards can be done by selecting the dimension in the tree view, and changing the values in the section "Placement Clicks" in the data tab

• changing the dimension to a half linear dimension ca be done by selecting the dimension in the tree view and setting the value for "half Dimension_linear" to true. The dimension will be using the half towrds the second click point