Обходные пути для решения некоторых задач
Outdated translations are marked like this.
Введение
Цель данной статьи перечислить некоторые отсутствующие в настоящее время возможности в FreeCAD и предоставить обходные пути для их решения. Это может быть полезно для начинающих пользователей, которые не могут найти требующиеся инструменты, среди тех что существуют в FreeCAD.
Обходные решения для верстака Sketcher
№ | Недостающая возможность | Предлагаемое решение |
---|---|---|
1 | Auto snap to objects (midpoints, geometric centers, quadrants, extensions, intersections) |
|
2 | Chamfer tool |
|
3 | Круговой массив |
|
4 | Offset tool |
|
5 | Rotate tool |
|
6 | Scale tool | |
7 | Adaptive dimension constraint |
|
8 | Ввод координат и размеров объектов при их создании |
|
9 | Tangency to B-spline edge |
|
10 | Check geometric and mass properties of the sketch (area, center of mass, second moments of area and so on) |
|
11 | Possibility to use the results of the External Geometry tool directly for operations on the sketch |
|
12 | Project multiple edges at once with the External Geometry tool when a face is selected |
|
13 | 3D sketches |
|
14 | Projection of cut edges when making a sketch on a plane cutting through an object | |
15 | View section tool showing filled cuts |
|
16 | Rectangle from 3 corners and rectangle from 3 points by center tools |
|
17 | Diameter dimension with respect to a symmetry axis for revolved parts |
|
18 | Curved slot tool |
|
19 | Dimension labels adapting to the rotation of the view to be always readable |
|
20 | First dimension in the sketch scaling the geometry so that its initially drawn shape is not broken |
|
21 | An option to hide the whole construction geometry in an active sketch |
|
Обходные решения для верстаков Part и Part Design
№ | Недостающая возможность | Предлагаемое решение |
---|---|---|
1 | Check the geometric and mass properties of the model |
|
2 | Отображение центра масс модели (детали или сборочных единиц) | |
3 | Clipping plane that doesn't make the model look like it's hollow |
|
4 | Creation of an axis on the intersection of 2 planes and a plane midway between two faces/points, possibly more variants for datum creation |
|
5 | Automated midsurface extraction (for thin-walled parts) |
|
6 | Project (map/wrap) sketches on non-planar (e.g. cylindrical) faces |
|
7 | Поддержка тел состоящих из нескольких раздельных (не соприкасающихся) фрагментов |
|
8 | Select which part of the sketch to pad |
|
9 | Fillets and chamfers that can consume adjacent faces/edges |
|
10 | Variable radius for the PartDesign Fillet tool |
|
11 | Parametric curves | |
12 | Cosmetic threads | |
13 | Partitions (splitting surfaces and volumes with sketches and datum planes while keeping the number of parts unchanged) |
|
14 | Guide rails for Additive Pipe and Additive Loft or their equivalents in the Part Workbench |
|
15 | Twist for PartDesign AdditivePipe or Part Sweep |
|
16 | Bending existing parts |
|
17 | Pattern along a curve |
|
18 | Cut scope - cut tools affecting only selected part of the model |
|
19 | Merging adjacent faces |
|
20 | Hole tool using points from sketches |
|
21 | Datum points from coordinates |
|
22 | A tool for automatic creation of ribs (structural reinforcements) |
|
23 | A tool for automatic creation of domes |
|
24 | Extending faces up to other faces (useful e.g. when extracting midsurfaces, as mentioned above) |
|
25 | Part Measure tool for radius or diameter measurement |
|
26 | Fuzzy versions of Part Boolean operations (possibility to specify a tolerance for boolean union and other operations) |
|
27 | PartDesign AdditiveLoft and PartDesign AdditivePipe with a possibility to use an open profile as the first or last section |
|
28 | A tool to sweep a circular profile of a given diameter along a selected path |
|
29 | Optional local coordinate system display for datum planes |
|
Workarounds for the Draft Workbench
No. | Missing feature | Workarounds |
---|---|---|
1 | Snap to apparent intersections of curved edges, perpendicular extensions, arc extensions, geometric centers and tangent points |
|
2 | Keyboard shortcuts for Draft Snap tools |
|
3 | Automatically change the colors of objects back to 'normal' when removing them from the construction geometry group |
|
4 | An option to quickly switch between the three main working planes and their projections at the selected point (for 3D drafting) |
|
5 | Remove one arrow from a radial dimension |
|
6 | AutoCAD-like command line input |
|
7 | Hatch a region enclosed by wires |
|
Обходные решения для верстака TechDraw
№ | Недостающая возможность | Предлагаемое решение |
---|---|---|
1 | Broken out and rotated/removed section views |
|
2 | Auto diameter dimension on side views |
|
3 | Manually add geometry to generated views |
|
4 | Shaded views in drawings |
|
5 | Ordinate dimensions |
|
6 | Broken (interrupted) views |
|
7 | Exclude ribs from hatching |
|
8 | Export of TechDraw pages as PDF without making the text from the template (path text) unmarkable/unsearchable. |
|
|- | 10 | Modify regular and section views using sketching tools |
- Manually create and modify the views:
- If a section view has to be modified, use the Part SectionCut tool or boolean operations to cut the part in the same way as it would be done by the section view tool
- Use the Draft Shape2DView tool to create a 2D line representation of the view or section view
- Use the Drafting tools with proper snaps to modify the view
- Use the Draft Draft2Sketch tool to create a sketch out of the Draft objects
- Use the Sketcher ValidateSketch tool to make sure that the sketch has no missing coincidences, doubled lines and so on (those issues may impact the face selection in TechDraw)
- Use the TechDraw View tool to create a view of the sketch in TechDraw.
|- | 11 | Auxiliary views |
- Create a standard view from the correct direction. Workarounds for "View normal to a face" may help. Rotate and position the view as needed.
|}
Обходные решения для верстака FEM (МКЭ)
№ | Недостающая возможность | Предлагаемое решение |
---|---|---|
1 | Beams with arbitrary cross-section |
|
2 | Pressure load on shells, distributed load on beams | |
3 | Support for multiple meshes and thus possibility to define contact between touching (not separated) faces |
|
4 | Apply torque to any surface |
|
5 | Define rigid bodies and virtual elements |
|
6 | Advanced material models (hyperelasticity, creep and so on) |
|
7 | Composite shells |
|
8 | Simple creation of node and element sets as well as surfaces |
|
9 | CalculiX keyword editor that can fold data lines and allow changes not only right before running the analysis |
|
10 | Meshing with hexahedral elements |
|
11 | Analyses with 2D (plane stress, plane strain, axisymmetric) elements |
|
12 | Multistep analyses (e.g. preload for frequency/buckling analysis) |
|
13 | Box selection of geometric entities for constraints |
|
Обходные решения для FreeCAD в целом
№ | Недостающая возможность | Предлагаемое решение |
---|---|---|
1 | Официальный верстак для сборки деталей |
|
2 | Улучшенный внешний вид/рендеринг 3D-моделей | |
3 | Status bar instructions (“Now pick this …”) for many tools that would benefit from them (e.g. Sketcher constraints), more informative tooltips | |
4 | Consistent selection order - some tools require the user to pick the geometric entity first while others allow selection after enabling the tool |
|
5 | More GUI customization options - pie menus, different icon styles and themes and so on |
|
6 | Selection filter: picking only faces, edges, points and so on |
|
7 | Advanced selection tools: selection by angle, inverting selection, selecting inside faces and so on |
|
8 | Assembly workbench with an option to constrain parts to the origin and to datums |
|
9 | Transform tool with an option to move and rotate with respect to edges and global coordinates |
|
9 | Больше возможностей для текстурирования |
|
11 | View normal to a face (useful for creating specifically aligned views in TechDraw) |
|
12 | Highlight only the individual PartDesign feature in the 3D view when the corresponding operation is selected in the Tree view |
|
13 | Select only the individual PartDesign feature in the Tree view when a corresponding element is selected in the 3D view. |
|
14 | Freeform modeling |
|
15 | Assembly component generators and calculators for: bolted and riveted connections, shafts, splines, keys, cams, gears (spur, bevel, worm), bearings, springs, belts and chains, pins, o-rings |
|
16 | A tool for kinematic analysis on properly constrained sketches | |
17 | GD&T directly on 3D models - MBD approach |
|