Translations:Advanced TechDraw Tutorial/6/en

From FreeCAD Documentation
  1. Draft Workbench (lines, polylines, circumferences, arcs, splines, beziers, etc.), in particular the snaps, to create on the object effectively precise "cosmetic points" that could then be used for dimensioning in TechDraw.
  2. It is also possible to use the Sketcher Workbench as
    • generator of "base-sketchTD" (sketch bases for TechDraw) in 2D (e.g. such as system diagram, floor plans, elevations, views of mechanical or overall parts, etc.) or by
    • using directly the sketches that generated the 3D models, or by
    • converting to sketch the “facebinder” generated with Draft obtained from faces and/ or sections of the 3D models.
  3. To obtain particular sections (cuts on different planes or axes) to be presented on the page in TechDraw (it is advised to use a copy of the original 3D object), then through the creation of planes (even on different axes) using the Workfeature Workbench, it is possible to section the copy of the 3D object Part SliceApart to obtain the faces to be converted into sketch Draft Draft2Sketch and then through the Sketcher Workbench edit them to make them suitable to the technical drawing that we are interested in generating in TechDraw. The Workfeature Workbench (and Macro WorkFeatures) are full of convenient additional functions, that allow us to easily create planes (theoretically infinite in extension and quantity) by selecting three points (vertices) (remember that for three points passing, one and only one plane passes through three non-aligned points one and only one plane passes through three non-aligned points) is a geometric axiom, which confirms without any ambiguity (!) the validity and importance of the WorkFeatureDev tool to create precise plans very easily.

(*This is quite comparable to AutoCAD Slice command [1] which is based on that axiom. Without pre-building any new plane, a cutting plane using three points is defined.)