BIM Workbench/pt-br

Introdução

A Bancada BIM provê um fluxo de trabalho de Modelo da Informação da Construção moderno no FreeCAD, com objetos totalmente parametrizados como, por exemplo, paredes, vigas, telhados, janelas, escadas, canos, e móveis. Ela é compatível com arquivos Industry Foundation Classes (IFC), e a produção de plantas 2D em combinação com a Bancada TechDraw.

A Bancada BIM importa ferramentas da Bancada Draft, para utilizar seus objetos 3d na contrução de objetos 3D paramétricos. Mas ela pode também usar formas sólidas criadas com outras bancadas como as Part e PartDesign.

Veja o guia de migração FreeCAD BIM (em inglês) para uma rápida visão geral se você for usuários de outra aplicação BIM.

Os desenvolvedores das bancadas Draft e BIM também colaboram com a comunidade OSArch, cujo principal objetivo é melhorar o design de construção usando unicamente software livre.

Começando

Quando a Bancada BIM é iniciada pela primeira vez, um diálogo de boas-vindas é apresentado, apresentando um visão geral de como a bancada funciona, e permitindo que o usuário inicie um tutorial integrado. Esse diálogo também está disponível a partir do menu Ajuda. Quando a tela de boas-vindas é fechada ao clicar em OK, o diálogo de configuração BIM será mostrado, permitindo ao usuário atribuir rapidamente algumas preferências mais comuns referentes ao BIM do FreeCAD sem necessitar navegar nas Páginas de preferências do FreeCAD.

A ferramenta configuração do projeto BIM permite que você configure rapidamente um projeto BIM inserindo algumas informações básicas sobre o seu projeto. Em seguida, você pode, por exemplo, usar as diferentes ferramentas de desenho 2D para esboçar diretrizes e linhas de base, e depois usar as diferentes ferramentas de modelagem 3D para construir automaticamente objetos BIM 3D a partir delas. Uma linha, por exemplo, pode se tornar uma parede simplesmente selecionando-a e pressionando o botão Parede.

Elementos comuns de construção, como paredes ou colunas, são facilmente criados pressionando o botão apropriado na barra de ferramentas e clicando em pontos na vista 3D. Eles podem ser movidos, rotacionados e editados após a criação. A maioria dos elementos BIM são criados no plano de trabalho atual, portanto, um fluxo de trabalho típico envolve posicionar o plano de trabalho primeiro e, em seguida, criar um elemento BIM. Elementos mais complexos podem ser criados desenhando elementos 2D primeiro e, em seguida, usando uma das ferramentas BIM para convertê-los no elemento desejado.

Elementos de projetos de construção podem ser organizados usando terrenos, edifícios e níveis, para reproduzir o que é comumente feito em outras aplicações BIM. No FreeCAD, no entanto, essas estruturas não são obrigatórias, e você é livre para organizar os elementos do seu modelo como achar melhor, por exemplo, usando grupos.

Desenhos 2D podem ser gerados a partir de um modelo para representar vistas de planta, corte ou elevação. Para gerar esse tipo de desenho, planos de corte são posicionados no modelo para indicar onde ele deve ser cortado ou visualizado. Uma vez que os planos de corte estão posicionados, dois métodos são possíveis:

1. Criar vistas projetadas no documento usando vistas de forma, depois adicionar todas as anotações necessárias, como textos e cotas, e então colocar tudo isso em uma página. Essa é a maneira recomendada, pois oferece mais flexibilidade.
2. Criar uma vista diretamente em uma página a partir do plano de corte. Nesse caso, todas as anotações 2D necessárias devem ser adicionadas ao plano de corte ou feitas diretamente na página. Esse método é menos flexível.

Por fim, tabelas de quantitativos podem ser criadas usando a ferramenta cronograma.

Se você está acostumado com outra aplicação BIM, confira nossa tabela de compatibilidade de aplicativos BIM para se orientar ao começar a usar o FreeCAD.

O tutorial integrado é uma maneira fácil de rapidamente se familiarizar com a bancada de trabalho BIM.

Ferramentas

A bancada de trabalho BIM reúne ferramentas de várias outras bancadas do FreeCAD, principalmente Draft e Part, reorganizadas de forma aproximada em categorias lógicas.

Além disso, se addons como esses estiverem instalados, ferramentas de Reinforcement (ferramentas adicionais para barras de reforço), Fasteners (parafusos e porcas), Flamingo/Dodo (ferramentas para estruturas metálicas e tubulações) e Parts Library são automaticamente incluídas na bancada de trabalho BIM.

A bancada de trabalho BIM também adiciona uma série de itens na barra de status do FreeCAD e alguns itens de menu de contexto, acessíveis ao clicar com o botão direito na vista 3D ou na vista em árvore.

Desenho 2D

Objetos 2D são comumente usados como auxiliares de desenho, ou para traçar linhas de base e perfis para construir objetos BIM. Eles também podem ser usados para desenhar símbolos e anotações no seu modelo. Além dos esboços, que usam seu próprio sistema de coordenadas, os objetos 2D serão desenhados no plano de trabalho atual.

• Esboço: Cria um novo esboço e entra no modo de edição de esboço. Os esboços são objetos 2D avançados com suporte a restrições.

• Linha: Cria uma linha reta.

• Polilinha: Cria uma polilinha (também chamada de fio), uma sequência de vários segmentos de linha conectados.

• Círculo: Cria um círculo a partir de um centro e um raio.

• Arco: Cria um arco circular a partir de um centro, um raio, um ângulo inicial e um ângulo de abertura.

• Arc by 3 points: Creates a circular arc from three points that define its circumference.

• Fillet: Creates a fillet, a rounded corner, or a chamfer, a straight edge, between two Draft Lines.

• Ellipse: Creates an ellipse from two points defining a rectangle in which the ellipse will fit.

• Polygon: Creates a regular polygon from a center and a radius.

• Rectangle: Creates a rectangle from two points.

• B-spline: Creates a B-spline curve from several points.

• Bézier curve: Creates a Bézier curve from several points.

• Cubic Bézier curve: Creates a Bézier curve of the third degree.

• Point: Creates a simple point.

3D/BIM

3D and BIM objects are the real-world elements that will compose your BIM project.

• Project: Creates an IFC project including selected objects.

• Site: Creates a site including selected objects.

• Building: Creates a building including selected objects.

• Level: Creates a floor including selected objects.

• Space: Creates a space object.

• Wall: Creates a wall from scratch or using a selected object as a base.

• Curtain Wall: Creates a curtain wall from scratch or using a selected object as a base.

• Column: Creates a vertical structural element at a given point, optionally using a selected object as a profile.

• Beam: Creates a horizontal structural element between two points, optionally using a selected object as a profile.

• Slab: Creates a flat structural element by extruding a selected flat object.

• Door: Creates a Window object using door presets.

• Window: Creates a window from scratch or using a selected object as a base.

• Pipe: Creates a pipe.

• Connector: Creates a corner or T-connection between 2 or 3 selected pipes.

• Stairs: Creates a stairs object.

• Roof: Creates a sloped roof from a selected wire.

• Panel: Creates a panel object from a selected 2D object.

• Frame: Creates a frame object from a selected layout.

• Fence: Creates a fence object from a selected post and path.

• Truss: Creates a truss from a selected line or from scratch.

• Equipment: Creates an equipment or furniture object.

• Reinforcement tools:

These tools, except the first, are only available if the Reinforcement Workbench has been installed.

• Custom Rebar: Creates a custom reinforcement bar in a selected structural element using a sketch.

• Straight Rebar: Creates a straight reinforcement bar in a selected structural element.

• U-Shape Rebar: Creates a U-shape reinforcement bar in a selected structural element.

• L-Shape Rebar: Creates an L-shape reinforcement bar in a selected structural element.

• Stirrup: Creates a stirrup reinforcement bar in a selected structural element.

• Bent-Shape Rebar: Creates a bent-shape reinforcement bar in a selected structural element.

• Helical Rebar: Creates a helical reinforcement bar in a selected structural element.

• Column Reinforcement: Creates reinforcement bars in a selected column.

• Beam Reinforcement: Creates reinforcement bars in a selected beam.

• Slab Reinforcement: Creates reinforcement bars in a selected slab.

• Footing Reinforcement: Creates reinforcement bars in a selected footing.

• Generic 3D tools:

These tools build generic 3D objects that can be turned or used into BIM components.

• Profile: Creates a parametric 2D profile.

• Box: Creates a box by specifying its dimensions graphically.

• Shape builder...: Creates more complex shapes from various geometric primitives.

• Facebinder: creates a surface object from selected faces.

• Objects library: Inserts an equipment or furniture object. Requires the Parts Library addon.

• Component: Creates a non-parametric Arch component.

• External reference: Links objects from another FreeCAD file into the current document.

Annotation

Annotations are visual help objects that can be placed inside your model. They can be used to export your model directly to a 2D format like DXF, or reused when creating 2D views of your model with the TechDraw Workbench.

• Text: Creates a 2D text in a document or on a TechDraw page.

• Shape from text: Creates a compound shape that represents a text string.

• Aligned dimension: Creates a dimension aligned with two points or a selected edge.

• Horizontal dimension: Creates an horizontal dimension between two points or from a selected edge.

• Vertical dimension: Creates a vertical dimension between two points or from a selected edge.

• Leader: Creates a 2-segment polyline with an arrow at its end, to be used as a leader line in conjunction with a Text.

• Label: Creates a multi-line text with a 2-segment leader line and an arrow.

• Axis: Adds a 1-direction array of axes.

• Axis System: Adds an axis system composed of several axes.

• Grid: Adds a grid-like object.

• Section Plane: Adds a section plane object.

• Hatch: Creates hatches on the planar faces of a selected object.

• Page: Creates a TechDraw page from a template SVG file.

• View: Creates a view of the selected object(s) such as a Section plane or a Group containing the different elements of a 2D view.

• Shape-based view: Creates a 2D projected view from a selected object such as a Section plane or a Level.

Snapping

This menu contains the Draft Snap tools as well as the following tools:

• Working Plane Top: Places the working plane on the global XY plane (ground).

• Working Plane Front: Places the working plane on the global XZ plane (front).

• Working Plane Side: Places the working plane on the global YZ plane (side).

Modificar

• Move: Moves or copies selected objects from one point to another.

• Copy: Copies selected objects from one point to another.

• Rotate: Rotates or copies selected objects around a center point by a given angle.

• Clone: Clones selected objects.

• Create simple copy: Creates a non-parametric copy of a selected object. This is the same tool as Part SimpleCopy.

• Make compound: Creates a compound from selected objects. This is the same tool as Part Compound.

• Offset: Offsets each segment of a selected object over a given distance, or creates an offset copy of the selected object.

• 2D Offset...: Constructs a parallel wire at a given distance from the original, or enlarges/shrinks a planar face (parametric version). This is the same tool as Part Offset2D.

• Trimex: Trims or extends a selected object.

• Join: Joins Draft Lines and Draft Wires into a single wire.

• Split: Splits a Draft Line or Draft Wire at a specified point or edge.

• Scale: Scales or copies selected objects around a base point.

• Stretch: Stretches objects by moving selected points.

• Draft to sketch: Converts Draft objects to Sketcher Sketches and vice versa.

• Upgrade: Upgrades selected objects.

• Downgrade: Downgrades selected objects.

• Add component: Adds objects to a component.

• Remove component: Subtracts or removes objects from a component.

• Array: Creates an orthogonal array from a selected object. It can optionally create a Link array.

• Path array: Creates an array from a selected object by placing copies along a path.

• Polar array: Creates an array from a selected object by placing copies along a circumference. It can optionally create a Link array.

• Point array: Creates an array from a selected object by placing copies at the points from a point compound.

• Cut with plane: Cuts an object according to a plane.

• Mirror: Creates mirrored copies from selected objects.

• Extrude...: Extrudes planar faces of an object. This is the same tool as Part Extrude.

• Difference: Subtracts one object from another. This is the same tool as Part Cut.

• Union: Fuses two objects. This is the same tool as Part Fuse.

• Intersection: Extracts the common part of two objects. This is the same tool as Part Common.

Gerenciar

• BIM Setup...: Configures some of the FreeCAD preferences most commonly used for BIM.

• Views manager: Manage the different views and levels of your project.

• Manage project...: Allows to create some basic objects such as a site, a building and axes by filling basic project information.

• Manage doors and windows...: Manage the doors and windows of your project.

• Manage IFC elements...: Manage how the different elements of your project will be exported to IFC.

• Manage IFC quantities...: Manage how the quantities of your objects are explicitely exported to IFC

• Manage IFC properties...: Manage the IFC properties attached to each of your objects.

• Manage classification...: Manage how objects and materials of your project relate to classifications systems such as Uniclass.

• Manage layers...: Manage the layers of your document.

• Material: Manages materials or multimaterials of selected objects

• Schedule: Creates different types of schedules.

• Preflight checks...: Perform different checks on your model before exporting to IFC.

• Annotation styles...: Allows you to define styles that affect the visual properties of annotation-like objects.

Utilitários

• Toggle bottom panels: Shows or hides output windows (the Report view and the Python console).

• Move to Trash: Moves selected objects to a Trash group, which gets created if necessary

• Working Plane View: Sets the camera to face the current working plane

• Select group: Selects the contents of Std Groups or group-like Arch objects.

• Set slope: Slopes selected Draft Lines or Draft Wires by increasing, or decreasing, the Z coordinate of all points after the first one.

• Create working plane proxy: Creates a working plane proxy to save the current Draft working plane.

• Add to construction group: Moves objects to the Draft construction group.

• Split Mesh: Splits a selected mesh into separate components.

• Mesh to Shape: Converts a mesh into a shape, unifying coplanar faces.

• Select non-manifold meshes: Selects all non-manifold meshes from the current selection or from the document.

• Remove Shape from Arch: Turns cubic shape-based Arch object fully parametric.

• Close holes: Closes holes in a selected shape-based object.

• Merge Walls: Merges walls.

• Check: Check if the selected objects are solids and don't contain defects.

• Toggle IFC B-rep flag: Forces a selected object to be exported as an IfcFacetedBrep.

• Toggle subcomponents: Shows or hides the subcomponents of an Arch object.

• Survey: Enters or leaves surveying mode.

• IFC Diff: Shows a visual diff between two IFC files

• IFC explorer: Opens a tool to explore the structure of an IFC file prior to importing

• Create IFC spreadsheet...: This tool creates a spreadsheet to store IFC properties of an object.

• Image plane: Inserts an image plane in the document.

• Unclone: Makes a cloned object independent from its original object

• Rewire:

• Glue:

• Reextrude: Recreates an extrusion from a shape that has lost its parametric extrusion by selecting a base face

• Panel tools:

• Panel: Creates a panel object from a selected 2D object.

• Panel Cut: Creates a 2D cut view from a panel.

• Panel Sheet: Creates a 2D cut sheet including panel cuts or other 2D objects.

• Nest: Allows to nest several flat objects inside a container shape.

• Structure tools:

• Structure: Creates a structural element from scratch or using a selected object as a base.

• Structural System:

• Multiple Structures:

• IFC Diff...:

• IFC Expand:

• Make IFC project:

• IfcOpenShell update:

• Nudge:

• Nudge Switch:

• Nudge Up:

• Nudge Down:

• Nudge Left:

• Nudge Right:

• Nudge Rotate Left:

• Nudge Rotate Right:

• Nudge Extend:

• Nudge Shrink:

Barra de status

The status bar contains a few buttons that allow to easily change different states:

• Toggle panels: Shows or hides the Report view and the Python console.

• Toggle Views: Shows or hides the BIM Views panel.

• Cycle background: Cycles between vertical gradient, radial gradient and simple color background modes. This can be used to toggle between a dark background for modelling and a white background for 2D drawing.

• Lock IFC: Switches between locked and unlocked IFC mode.

Menu de contexto da visualização em árvore

TBD

Menu de contexto da visualização 3D

TBD

Ferramentas obsoletas

• Arch 3Views: Creates top, front and side views from a mesh. Not available in 1.0 and above.

• Arch BuildingPart: Creates a building part including selected objects. Not available in 1.0 and above. Use Arch Floor instead.

• Arch CloneComponent: Produces Arch Components that are clones of selected Arch objects. Not available in 1.0 and above. Use Draft Clone instead.

• Arch CutLine: Cuts an object according to a line. Not available in 1.0 and above. Use Arch CutPlane instead.

• Arch MultiMaterial: Creates a multi-material and attributes it to selected objects, if any. Not available in 1.0 and above. Use BIM Material instead.

• Arch Project: Creates a project including selected objects. Not available in 1.0 and above. Use BIM Project instead.

• Arch SetMaterial: Creates a material and attributes it to selected objects, if any. Not available in 1.0 and above. Use BIM Material instead.

Preferências

• Preferences: General preferences for the BIM Workbench.
• Fine tuning: Extra parameters to fine-tune BIM behavior.

Working with IFC

The BIM workbench works natively with Industry Foundation Classes (IFC) files. Native means there is no more translation between the IFC contents and FreeCAD: The IFC contents are directly rendered in FreeCAD, and any change affects the IFC contents directly. Read more on NativeIFC.

If you don't plan to work with others, and have no need for IFC, you can still use the BIM workbench tools and simply ignore anything related to IFC. You can still export your model to IFC anytime.

The old Arch IFC importer is disabled by default in FreeCAD, but still available from Python.

There is also a specific NativeIFC Tutorial that explains the concepts further.

Formatos de arquivo

• IFC: industry foundation classes
• DAE: Collada mesh format
• OBJ: OBJ mesh format (export only)
• JSON: JavaScript Object Notation format (export only)
• 3DS: 3DS format (import only)
• SHP: GIS Shapefiles (import only)

API

The Arch module can be used in Python scripts and macros using the Arch Python API functions.

Tutoriais e aprendizado

• Migrating to FreeCAD from Revit
• Arch & BIM tutorials on this wiki
• "BIM with FreeCAD" video series by Yorik
• "FreeCAD tutorials" video series by Regis
• "Quinta Monroy" video series by Regis
• "HRCompacta" youtube channel (most content is in portuguese)
• "FreeCADBIM" youtube channel (most content is in portuguese)

Arquivos de exemplo

• FreeCAD features a BIM example file on the Start page.
• More example BIM files are available at https://github.com/yorikvanhavre/FreeCAD-BIM-examples . From within FreeCAD, use menu Help -> BIM examples.