UnoTool 2D & 3D Spline Generator is a productivity add-in for Autodesk® Inventor® that automates the creation of accurate 2D and 3D splines using coordinate data imported from Excel spreadsheets.

Creating splines manually from large coordinate datasets can be time-consuming and error-prone. This add-in simplifies the process by allowing users to import point data directly from single or multiple Excel files and automatically generate precise spline curves within Inventor.

The tool intelligently detects whether the Excel data contains 2D or 3D coordinates and generates the spline in the appropriate sketch environment. If inconsistent or invalid data is detected, the add-in displays warning messages to help users correct the issue before spline creation.

Users can import a single Excel file, multiple Excel files, or an entire folder to quickly generate multiple splines in batch. Each Excel file produces an individual spline, making it easy to process large datasets efficiently.

The add-in also validates the active sketch environment. If a user attempts to generate a 3D spline in a 2D sketch (or vice versa), the tool provides clear warning messages to prevent errors and ensure the correct workflow.

This solution significantly improves productivity for engineers, designers, and CAD professionals working with coordinate-based geometry, scanned profiles, or analytical curve data. By automating spline creation directly from Excel data, the tool reduces manual work, improves accuracy, and accelerates modelling workflows in Autodesk Inventor.

Key Features

• Automatic generation of 2D and 3D splines from Excel point data
• Import single Excel file, multiple Excel files, or entire folders
• Batch spline generation – one spline created per Excel file
• Intelligent detection of 2D or 3D coordinate data
• Warning messages for inconsistent Excel data formats
• Validates active sketch type (2D / 3D) before spline creation
• Folder import with file filtering support
• Works in both Part and Assembly environments

Benefits

• Faster spline creation from coordinate datasets
• Eliminates manual point-by-point spline drawing
• Handles large datasets efficiently
• Improves design accuracy and consistency
• Reduces repetitive modelling work
• Boosts productivity for engineering and CAD workflows

Compatibility

• Autodesk Inventor 2024
• Autodesk Inventor 2025
• Autodesk Inventor 2026

Need Help or Have Questions?

For any assistance, feature enhancements, or specific requirements, please feel free to contact us at apps@unoteams.com. Our team will be happy to support you.

For payment-related queries and purchase procedures, please contact us at apps@unoteams.com. Our team will assist you with the necessary details and support to activate the license.

Note: This app uses a custom installer (and not the standard App Store installer).