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Multibody parts |
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A KOMPAS-3D model can contain several solid bodies.
The presence of several bodies may be required, for example, to create a body with cavities of complex shapes in the model. Such bodies are obtained by subtracting one body from another using the Boolean operation. In this case, you have to create two intersecting bodies the first of which will determine the shape of the part and the second one will determine the cavity shape, and then apply the Boolean operation to the bodies to subtract the second body from the first one. This design method is recommended for creating parts with complex pockets or other cutouts passing through complex surfaces and having rounded edges.
Another option of using multibody modeling is "multiside" design. It means that separate portions of a part are created as independent bodies and then merged. Intersecting bodies can be merged by applying a Boolean operation to them, while non-intersecting bodies can be merged by constructing a new solid that intersects with them.
Using multiple bodies expands the possibilities for construction and removes restrictions on creating models that can only be obtained by merging, subtracting, or intersecting bodies. For example, you can construct a part by combining thin-walled bodies with different wall thicknesses.
You can obtain several bodies in a model by using standard body construction operations if the operation result is is an option New body 
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For each body, you can set CMP Parameters, color and surface properties. More details on the control of color and optical properties...
In some cases, it is necessary to split the existing body in the model into several bodies. To do this, use the Cut operation. The obtained bodies inherit properties from the original, but after splitting, you can assign different property values to them.
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Note that you cannot split a body into separate bodies using cutting operations such as Cut Extrusion Solid, Cut Rotation Solid, etc. If separate parts of a body are obtained as a result of cutting, the original body becomes body made of parts. |
Bodies obtained by cutting or created by standard geometry construction commands can be copied or saved as separate parts (for a body obtained through cutting, correct transformation into a part is only possible without saving the construction history).
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Copying the result of a boolean operation using array construction commands is not possible. Therefore, if the model requires several identical pockets or samples obtained by subtraction, you must first create copies of the bodies for subtraction, and then perform the boolean operation the necessary number of times. |
