> For the complete documentation index, see [llms.txt](https://manual-1-3.karamba3d.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual-1-3.karamba3d.com/3-in-depth-component-reference/3.1-model/3.1.2-disassemble-model.md).

# 3.1.2: Disassemble Model

It is sometimes necessary to take apart existing models in order to

1. reassemble them in different configurations,
2. retrieve the results of e.g. a cross section optimization.

The **“DisassembleModel”**-component can be used for decomposing a structural model into its components (see fig. 3.1.2.1). Resulting loads, supports and elements reference the nodes they connect to by position – regardless whether they were initially defined using coordinates or node-indexes. This allows to reuse parts of an old model and reassemble them in a new model where the node indexes have changed. At the **“CroSec”**- and **“Material”**-output only those cross sections and materials show up which were directly fed into the **“Assemble”**-component. In order to get all cross sections, it is necessary to disassemble the model elements. The cross section materials result from disassembling the cross sections.

![ Fig. 3.1.2.1: A model is decomposed into its components.](/files/-M9XuST22fhxeTA_28SR)