Notas de lançamento da versão 0.16

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O FreeCAD 0.16 foi lançado a 18 abril, 2016 descarregue aqui Download. Este é o sumário das alterações mais interessantes. A lista completa de alterações pode ser encontrada na Histórico de alterações. Versões antigas em: 0.15 - 0.14 - 0.13 - 0.12 - 0.11

Satnogs Rotator FreeCAD.jpg

Satnogs Rotator (https://satnogs.org/)

Destaques

Foi introduzido o Suporte de Expressões, que permite definir fórmulas baseadas em relações entre propriedades dos objetos . O suporte a expressões é um grande salto em frente para fazer melhores modelos paramétricos em FreeCAD. Expressões permitem um interface simples para fazer modelos controlados por folhas de cálculo.

Expressions-demo.png

O comportamento do calculador de Esboços foi grandemente melhorado. Tornando-o não só mais rápido mas também mais estável, este já não bloqueia em sketches (esboços) irresolúveis. A atualização automática do Sketch (esboço) após cada pequena alteração pode agora ser desligada, permitindo a edição suave de sketches (esboços) carregados de uma grande quantidade de dependências.

Sketcher-v0.16-demo.png

O FreeCAD agora suporta navegação touchscreen 3D. O que torna possível utilizar o FreeCAD sem rato num portátil com monitor tátil e "pen", longe de uma mesa de trabalho.

A Bancada de trabalho FEM teve toneladas de melhoramentos. Ela provou ser utilizável para vários tipos de análises mecânicas/estruturais.

Multiple material.jpg

Geral

  • Suporte para expressões/fórmulas
  • Três novos estilos de navegação: Navegação gestual (com suporte para Monitor tátil e caneta em Windows), navegação Maya e navegação OpenCascade.
  • Personalização da lista de bancadas de trabalho (a lista pode ser reordenada e cada bancada pode ser escondida da lista)
  • Ferramenta de recuperação
  • Novas opções de gravação (Reverter, salvar como copia)
  • Nova página inicial

Bancada de trabalho Peças (Part)

  • Novas ferramentas para unir objetos com paredes (e.g., tubos): Connect, Embed and Cutout
  • Nova funcionalidade: Criar face a partir do esboço (sketch) (paramétrica)

Bancadas de trabalho Part Design & Sketcher

  • Novas funcionalidade: Alternar modo para Reference/Driving constraints
  • Novas funcionalidade: Modo de criação continua
  • Novas funcionalidade: Non-driving constraints (aka Driven constraints)
  • Melhoria na velocidade de desenpenho
  • Advanced solver control
  • Novas funcionalidade: Ferramenta para duplicação, simetria e matriz (array) retangular
  • Suporte para expressions/formulas em restrições e propriedades

Bancada de trabalho Folha de Cálculo

  • Added functions: round, trunc, ceil, and floor.

Draft Workbench

  • New DXF importer: The Draft Workbench now features a brand-new DXF importer, fully coded in C++, inherited from HeeksCad, which no longer needs to download external components, and is now much faster and able to load much larger DXF files. An option in the DXF preferences allows switching back to the old importer if needed.
  • A new Mirror tool allows doing mirroring of objects "the Draft way"
  • Many DXF templates have been added to the corresponding built-in SVG templates, making the export of Drawing pages to DXF much better.
  • Rectangles,wires and lines can now be subdivided, allowing all kinds of new shape combinations.


Draft subdivisions.jpg

Drawing Workbench

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Arch Workbench

  • Materials support: Arch objects can now have a material attached, which uses FreeCAD's builtin materials framework. These materials are shared among other workbenches. These materials are fully supported by IFC import and export.
  • The Section plane can now do clipping of the 3D view, showing the section in realtime.

Arch clip plane.jpg

  • Several improvements to the IFC importer such as new options for treating large IFC files, better support for extrusions (now detected on import) and curved segments, and support of 2D annotation objects. The import of Analytical IFC has been added. At the moment import of geometrical representations of all analytical objects is supported.
  • Better meshing options for DAE and IFC formats.
  • A new Arch Schedule tool allows creating different kinds of schedules from a BIM model.
  • IFC attributes can now be imported, edited and exported. This is basically a spreadsheet object attached to an Arch object.

FEM Workbench

  • GUI FEM commands have keyboard short cuts now. A preference dialog for FEM was introduced. The binary path of CalculiX is one of the preference settings.
  • GUI analysis container Analysis member uses drag & drop. They can be moved in and out of a analysis container. Since there is now support for multiple analysis, members can be moved into another analysis too. Multiple constraints can be created in an analysis.
  • GUI one click analysis A one click analysis button has been added to the GUI. It purges results, writes the CalculiX input file, and does the analyse with the selected solver. It detects if multithreading is available for CalculiX and uses the maximum possible threads.
  • Input file FreeCAD's build-in editor supports editing CalculiX input files (*.inp). Syntax highlighting was implemented too.
  • Netgen mesh object The GUI and property editor of the Netgen mesh object has been reworked. Tetrahedron meshing off one order and second order elements is supported as well as adjusting meshing parameter.
  • Constraint force and constraint fix objects It is now possible to add Forces and Fixes on edges and Vertexes.
  • Constraint pressure object A new object for pressure load on faces has been added. The pressure (load per area) is passed directly to CalculiX which means the node loads are not calculated by FreeCAD but CalculiX instead.
  • Constraint prescribed displacement object A new object for prescribed displacements has been added. The prescribed displacement can be added to vertexes, edges and faces. For shell and beam analysis it is possible to fix the rotational degrees of freedom.
  • Beam section object The new beam section object allows defining rectangle cross sections for beam FEM. There is support for different beam sections in one analysis by defining reference shapes for each cross section
  • Shell thickness object The new shell thickness object allows defining the thicknesses of shell plates. Like the beam section, there is support for multiple shell thicknesses in one analysis by defining reference shapes.
  • Material object Multiple materials are supported for edge, shell and solid meshes. Like for the beam section and shell thickness objects an appropriate FEM Mesh is needed to use the multiple materials.
  • Solver object As a base for multiple solver, a solver object has been implemented. All analysis properties moved from analysis to solver.
  • Frequency analysis A frequency analysis can be made. The number of eigenvalues or eigenshapes to calculate can be adjusted in the preference GUI.
  • View provider Shell and beam FEM-Meshes can be viewed in FreeCAD and thus the results of such analysis too.
  • Python API Methods for working with FEM-Meshes and making an analysis from python have been added.
  • GMSH Macro An interesting external developing is the Macro_GMSH which makes it possible to use GMSH for meshing. Very useful for all not able to compile FreeCAD with Netgen or for meshing shell- or edge meshes.
  • General Improvements Due to the heavy development taking place, there have been tons of improvements on the code base of FEM module.

Path Workbench

Exercise path 02.jpg

A new Path Workbench has been added to FreeCAD. This workbench, although still under development, already implements some CAM operations, and allows exporting full G-code programs for a variety of CNC machines.

In its current state, the workbench allows creation of profiles and pockets around Part-based objects, creating complex paths by joining several partial paths, inspection and editing the g-code contents of paths, managing tooltable, and choosing between different pre-processing and post-processing scripts when importing and exporting G-code. It also already provides a complete python API.

Additional Modules

A couple of new addons workbenches have been created by community members. These workbenches are easily pluggable into an existing FreeCAD installation. Among them are:

  • An Animation Workbench allows you to create animations from your FreeCAD models, by defining the movement of a camera and exporting a sequence of images.
  • A Kerkythea exporter macro permits exporting your FreeCAD documents to the free Kerkythea renderer.
  • A work-in-progress Menu is also already available.
  • Finally, an addons repository has been created to gather all the interesting workbenches, modules and other macros that are flourishing around FreeCAD. This repository features a installer that takes care of the installing and updating of these addons for you.

Macro installer 02.jpg