Datum/ru
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Введение
In FreeCAD the word "Datum" is normally used to refer to auxiliary geometry that is not part of the final Shape of the model, but used as a reference and support for sketches and other objects. Datums can be used in all workbenches. Some objects, such as a Std Part, a PartDesign Body and an Assembly, contain a coordinate system (Origin) by default.
The datums are derived from App GeoFeature:
Применение
- Switch to the PartDesign Workbench.
- Press
PartDesign Body.
- Select the Origin of the Body, and make it visible by pressing the Space bar on your keyboard.
- Press
Part DatumPlane to open the Attachment task panel.
- In the 3D View, click on one of the standard planes, for example, the XY-plane. Then press OK to close the task panel.
- Now in the Tree View, select the newly created DatumPlane, and then press
PartDesign NewSketch.
- Create a closed wire, and then use
PartDesign Pad to extrude the sketch, and create an initial solid.
Now you can move and rotate the DatumPlane as you wish, by changing its properties in the Property View, and the Sketch and Pad will follow its new Placement.
You can add other types of datums to be used with other sketches and features.
Объекты документа
- Ядро: App DocumentObject
- Базовые: App FeaturePython, App GeoFeature, Part Feature, Mesh Feature, Fem FemMeshObject
- Внутренние формы: Part TopoShape, Mesh MeshObject, Fem FemMesh
- Структура: App DocumentObjectGroup (Std Group), App Part (Std Part), App Link
- Производное: Part Part2DObject, Sketcher SketchObject, PartDesign Body, PartDesign Feature
- Начинающим
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- Помощь: Учебники, Видео учебники
- Верстаки: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework