User chrisb wrote the more than 80 page Sketcher Lecture. It is a reference manual for the Sketcher Workbench. For inexperienced users, it is a gentle introduction that covers the basic usage of the Sketcher, and then goes into many details of creating geometrical elements, and using each type of constraint.
The manual is a work in progress, as some sections are reviewed and updated depending on the development occurring on the Sketcher Workbench. The original manual was written for FreeCAD 0.17, then it was updated for 0.18 and 0.19. The latest manual can be found in the forum thread, Sketcher tutorial.
Example sketch in the Sketcher Lecture.
The general structure of the Sketcher Lecture is:
- Basics
- Create a sketch
- The Sketcher window
- General remarks on degrees of freedom
- Auto constraints
- Geometric elements
- Common usage
- Line
- Circle
- Arc
- Polyline
- Rectangle
- Polygon
- Slot
- B-splines
- Conical sections
- Construction geometry
- Point
- Constraints
- Selecting constraints
- Applying constraints
- The solver
- Coincidence
- Point on object
- Vertical
- Horizontal
- Parallel
- Perpendicular
- Tangency
- Equality
- Symmetry
- Block
- Horizontal distance
- Vertical distance
- Lock
- Length
- Radius and diameter
- Angle
- Further dos and don'ts with constraints
- Driven dimensions
- External geometry
- Creating objects based on sketches
- Sketches for pads and pockets
- Use symmetry!
- Placement and attachment offset
- Validate sketches
{{Sketcher Tools navi}}
⏵ documentation index > Tutorials > Sketcher > Sketcher Lecture