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Dion Moult
103 lines
3.6 KiB
ReStructuredText
103 lines
3.6 KiB
ReStructuredText
Material Assignment
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===================
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This section covers how to assign and customize materials in your BIM model using the Bonsai.
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Types of Material Definitions
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-----------------------------
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In BIM, materials can be defined in several ways:
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1. Single Material: The simplest approach, where an object has one material.
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2. Material Constituent Set: For objects with multiple materials (e.g., a window with an aluminum frame and glass glazing).
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3. Material Layer Set: Used for objects like walls or slabs, defining layers of different materials and thicknesses.
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4. Material Profile Set: Typically used for structural elements, defining materials in relation to a specific profile shape.
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Basic Material Assignment
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-------------------------
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To assign a material to an object:
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1. Select the object in the 3D viewport.
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2. Go to the Material Properties panel.
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3. Click "New" to create a new material.
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4. Give the material a name.
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5. Set the material type (single, constituent set, layer set, or profile set).
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Material Categories
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-------------------
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Materials should be categorized for easy identification and scheduling:
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- In IFC4 models, materials are automatically grouped into categories (e.g., concrete, steel, wood).
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- For IFC2x3 models, materials may appear uncategorized.
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To view all materials in your project:
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1. Go to the Materials schedule in the Bonsai panels.
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2. You'll see a list of all materials used in the model.
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Best Practices for Material Naming
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----------------------------------
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- Use standardized naming conventions for materials.
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- Names should match how materials are tagged in drawings, schedules, and specifications.
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- Avoid using color codes as material names.
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Material Properties
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-------------------
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In IFC4 models, materials can have associated properties:
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1. Select a material in the Materials panel.
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2. Look for the "Common Properties" section.
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3. Set relevant properties for the material (e.g., density, thermal properties).
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Note: IFC2x3 models have limited support for material properties.
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Profiles for Structural Elements
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--------------------------------
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For structural models, especially steel structures:
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1. Use Material Profile Sets for elements like beams and columns.
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2. Name profiles according to standardized codes in your region.
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3. In IFC4 models, profiles can have associated structural properties.
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To view profiles:
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1. Look for the Profiles schedule in Bonsai panels.
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2. You should see a list of all profiles used in the project.
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Color vs. Material
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------------------
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It's important to distinguish between an object's color and its material:
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- Color is a visual property for rendering and display.
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- Material defines the physical properties and composition of the object.
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Avoid merging these concepts; an object can have a material without a specific color, and vice versa.
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Saving and Exporting
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--------------------
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Remember that Bonsai .ifc files cannot currently save textures from image files. To preserve both BIM data and detailed materials:
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1. Save your project as a .blend file to retain all material and texture information for rendering.
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2. Also save as an .ifc file to store BIM data.
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Always maintain both .blend and .ifc versions of your project to ensure all information is preserved.
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IFC Version Considerations
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--------------------------
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- IFC4 provides better support for material properties, categories, and profiles compared to IFC2x3.
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- Consider migrating to IFC4 for more comprehensive material information and structural analysis capabilities.
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See Also
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--------
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- :doc:`../../structural_analysis/index`
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- :doc:`../../costing_and_scheduling/index`
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