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Evaluation of an LLM to Generate Fusion 360 API Scripts for CAD Modeling of Industrial Robot Components and System Automation Elements

Submitted:

17 July 2026

Posted:

20 July 2026

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Abstract
Currently, several LLMs (Large Language Models) assist users with specific tasks, such as summarizing texts or solving physics problems, to name a few. On the other hand, using scripts allows users to automate tasks and save time in their creation. This article evaluates an LLM for generating scripts for the Application Programming Interface (API) of the Fusion 360 CAD software application, to determine its capabilities for developing 3D modeling components used in the simulation of industrial robots or the automation of manufacturing systems. Among the results, it was found that the generated scripts enable modeling of industrial robots and automation elements using simple geometries that the user can later customize for a specific application. Furthermore, it is recommended that users be familiar with Fusion 360 in case they need to modify or assemble the components created by scripting. At the end, a Prompt Engineering Guide for Fusion 360 scripts focused on generating components for industrial robots is shared.
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Copyright: This open access article is published under a Creative Commons CC BY 4.0 license, which permit the free download, distribution, and reuse, provided that the author and preprint are cited in any reuse.
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