# 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) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://manual-1-3.karamba3d.com/3-in-depth-component-reference/3.1-model/3.1.2-disassemble-model.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.