Measurement Of Angles On Holes

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Freecad.svg Tutorial
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This tutorial explains how to create center hole lines using the Workbench TechDraw.svg TechDraw Workbench with oriented holes.

By creating angles for holes it's not possible to use vertical or horizontal center lines (false/true) from the properties of the view. Helping lines and/or helping points are created for this necessity.


1. Setting center lines on holes:

There are some possibilities to create a center line for holes. At first the lines or points on the hole must be selected as shown below. Second, the following tools can be used from the toolbar to create the center line:

TechDraw 2PointCenterLine.svg Add Centerline between 2 Points
TechDraw 2LineCenterLine.svg Add Centerline between 2 Lines

TechDraw Tutorial 2PointCenterLine example.png

Above: created with TechDraw 2PointCenterLine.svg which creates centerlines between 2 points

TechDraw Tutorial 2LineCenterLine example.png

Above: created with TechDraw 2LineCenterLine.svg which creates centerlines between 2 lines

In the associated Combo View dialog box select in the Tasks panel under Orientation "Aligned" for axes out of main axes. Extend By means the length of the center line beyond of the body line in the drawing. With Shift Horizontal and Shift Vertical the center line can move in horizontal or vertical direction, if is necessary. Style means the figure of center line.


Above: dialog box

The created center line can change. Select the center line and press the button TechDraw 2LineCenterLine.svg or TechDraw 2PointCenterLine.svg from the tool bar which you have created the center line. Delete the center line only with TechDraw CosmeticEraser.svg from the tool bar after selecting the center line.

2. Setting angles:

Quadrant points select with TechDraw Quadrants.svg from the tool bar. Next select the points as show below and use TechDraw Dimension Angle3Pt.svg from the tool bar to create the angle. Other succession create other angles. Is there no catching point on the center line change "ISO count" in the properties.


Above: Succession of selection