Справка по Sketcher
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Введение
User chrisb wrote a lengthy 70-page reference manual for the Sketcher Workbench that covers many topics of using this 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 now for 0.19. The latest manual can be found in the forum thread, Sketcher tutorial.
Due to the evolving nature of the manual, the document is also known as the "Sketcher lecture".
Example sketch in the reference manual.
Содержание
The general structure of the manual 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
- Lock
- Horizontal distance
- Vertical distance
- Length
- Radius and diameter
- Angle
- Dos and don'ts with constraints
- External geometry
- Creating objects based on sketches (to be written)
- Sketches for pads
- Symmetry
- Placement and attachment offset
- Validate sketches
Учебники 
- Общее: Учебники, Видеоуроки (Product design, Архитектура, Устаревшие)
- Sketcher: Basic Sketcher tutorial, Sketcher reference
- PartDesign: Simple object, Simple object 2
- Part: Engraved text, Wiffle ball, Basic modeling, Screw threads, Placement
- TechDraw: Basic TechDraw tutorial, New template
- Path: Path for the impatient
- FEM: Cantilever analysis, Shear in a composite block, Postprocessing with Paraview, Reinforced concrete
- Rendering: Raytracing tutorial, POV-ray, Blender
Sketcher 
- Инструменты: New sketch, Edit sketch, Leave sketch, View sketch, View section, Map sketch to face, Reorient sketch, Validate sketch, Merge sketches, Mirror sketch
- Геометрия эскиза: Point, Line by 2 point, Create an arc, Arc, Arc by 3 Point, Create a circle, Circle, Circle by 3 Point, Create a conic, Ellipse by center, Ellipse by 3 points, Arc of ellipse, Arc of hyperbola, Arc of parabola, Create a B-spline, Create B-spline, Create periodic B-pline, Polyline (multiple-point line), Rectangle, Create regular polygon, Triangle, Square, Pentagon, Hexagon, Heptagon, Octagon, Create Regular Polygon, Slot, Fillet, Trimming, Extend, External Geometry, CarbonCopy, Construction Mode
- Ограничения в Sketcher
- Геометрические ограничения Coincident, Point On Object, Vertical, Horizontal, Parallel, Perpendicular, Tangent, Equal Length, Symmetric, Constrain Block
- Размерные ограничения Lock, Horizontal Distance, Vertical Distance, Distance, Radius, Internal Angle, Snell's Law, Internal Alignment, Toggle reference/driving constraint,
- Инструменты в Sketcher Select solver DOFs, Close Shape, Connect Edges, Select Constraints, Select Origin, Select Vertical Axis, Select Horizontal Axis, Select Redundant Constraints, Select Conflicting Constraints, Select Elements Associated with constraints, Show/Hide internal geometry, Symmetry, Clone, Copy, Move, Rectangular Array, Delete All Geometry, Delete All Constraints
- Инструменты B-сплайнов в Sketcher Show/Hide B-spline degree, Show/Hide B-spline control polygon, Show/Hide B-spline curvature comb, Show/Hide B-spline knot multiplicity, Convert Geometry to B-spline, Increase degree, Increase knot multiplicity, Decrease knot multiplicity
- Виртуальное пространство Sketcher Switch Virtual Space
Документация пользователя 
- Установка: Windows, Linux, Mac; Начинающим
- Базовая: О FreeCAD, Верстаки, Настройки, Структура документа, Настройка интерфейса, Свойства, Модель мыши; Учебники
- Верстаки: Arch, Draft, FEM, Image, Inspection, Mesh, OpenSCAD, Part, PartDesign, Path, Plot, Points, Raytracing, Reverse Engineering, Robot, Ship, Sketcher, Spreadsheet, Start, Surface workbench, TechDraw, Test Framework, Web
- Скрипты: Введение в Python, Учебник скриптов FreeCAD, Основы скриптов FreeCAD, Установка макросов, Команды графического интерфейса, Единицы Модули: Создание модулей, Создание верстаков, Добавление верстаков Сетки: Сеточные скрипты, Модуль сеток Детали: Модуль Part, Скрипты топологических данных, PythonOCC, Из Mesh в Part Coin scenegraph: The Coin/Inventor scenegraph, Pivy Интерфейс Qt: PySide, Использование графического интерфейса FreeCAD, Создание диалогов Параметрические объекты: Скриптовые объекты Прочее: Кусочки кода, Функции рисования линий, Встраивание FreeCAD, Библиотека векторной математики FreeCAD, Хаб опытных пользователей, Python, Макросы, Основы скриптов FreeCAD, Topological data scripting
