Mode:
Duration:
1
Coding works best on desktop or with an external keyboard.
NX Open Python Example - Nx-open-macros Typing CST Test
NX Open Python Example — Nx-open-macros Code
Python macro using NX Open API to create a simple line between two points.
import NXOpen
def main():
session = NXOpen.Session.GetSession()
workPart = session.Parts.Work
point1 = NXOpen.Point3d(0.0, 0.0, 0.0)
point2 = NXOpen.Point3d(100.0, 100.0, 0.0)
workPart.Curves.CreateLine(point1, point2)
if __name__ == "__main__":
main()Nx-open-macros Language Guide
NX Open Macros is a scripting interface for Siemens NX (formerly Unigraphics NX), allowing automation of CAD, CAM, and CAE tasks. It provides programmatic control of NX functions using recorded macros, VB, or Python scripts.
Primary Use Cases
- ▸Automating repetitive CAD modeling operations
- ▸Generating assemblies or parts programmatically
- ▸Customizing drawings and annotations
- ▸Integrating NX with PLM/PDM systems via automation scripts
- ▸Batch processing and design standard enforcement
Notable Features
- ▸Macro recording and playback for NX operations
- ▸Supports VB.NET, C#, Python, and Journal-based scripting
- ▸Access to NX objects, features, and methods programmatically
- ▸Integration with external files, databases, and PDM systems
- ▸Event-driven and batch automation support
Origin & Creator
Developed by Siemens Digital Industries Software to extend NX capabilities with custom automation and scripting.
Industrial Note
NX Open Macros are specialized for CAD/CAM/CAE automation, enabling engineers to reduce repetitive tasks, enforce design standards, and integrate NX with enterprise systems.
Quick Explain
- ▸NX Open Macros enable automation of repetitive design, modeling, and drafting tasks.
- ▸Macros can control part creation, assembly operations, and drawing updates.
- ▸Support interaction with NX objects, features, and user interfaces programmatically.
- ▸Facilitate integration with external data, databases, or PDM/PLM systems.
- ▸Widely used in design engineering, manufacturing, and simulation workflow automation.
Core Features
- ▸Programmatic part and assembly creation
- ▸Feature and body manipulation
- ▸Drawing and annotation automation
- ▸Access to parameters, attributes, and object properties
- ▸Macro execution through NX GUI or command line
Learning Path
- ▸Learn NX basic modeling and assembly operations
- ▸Practice macro recording
- ▸Understand NX Open API object hierarchy
- ▸Develop parameterized macros
- ▸Integrate macros with PLM/PDM workflows
Practical Examples
- ▸Batch creation of standardized parts
- ▸Automated assembly generation from templates
- ▸Parameter-driven feature creation
- ▸Automated drawing and annotation generation
- ▸Exporting parts to external formats programmatically
Comparisons
- ▸NX Open Macros vs Manual CAD - faster, consistent, and automated
- ▸NX Open Macros vs NX Open API scripting - macros are simpler for beginners
- ▸NX Open Macros vs Recorded Journals - macros are reusable and editable
- ▸NX Open Macros vs External CAD tools - better integration with NX objects
- ▸Parameterized Macros vs Static Macros - flexible and scalable
Strengths
- ▸Greatly reduces manual CAD work
- ▸Ensures consistency across designs
- ▸Supports complex automation sequences
- ▸Integrates with enterprise systems
- ▸Flexible scripting options with multiple languages
Limitations
- ▸Requires programming knowledge (VB, Python, or C#)
- ▸NX version-specific macro compatibility
- ▸Limited debugging in recorded macros
- ▸Complex tasks may require advanced API understanding
- ▸Macro maintenance needed with NX upgrades
When NOT to Use
- ▸Simple, one-off CAD edits
- ▸Highly interactive modeling tasks requiring manual decision
- ▸When no automation or repetitive workflow exists
- ▸Legacy NX versions not supporting macros
- ▸Rapid prototyping where design changes are frequent and unique
Cheat Sheet
- ▸Record Macro - record a repetitive NX operation
- ▸Edit Macro - modify VB/Python script
- ▸Run Macro - execute macro in NX session
- ▸Parameterize - make macro inputs flexible
- ▸Log/Debug - monitor macro execution
FAQ
- ▸Can macros access all NX objects? -> Yes, depending on API and NX version.
- ▸Which languages are supported? -> VB.NET, Python, C#.
- ▸Can macros modify assemblies? -> Yes, including parts and features.
- ▸Are macros version-specific? -> Often; test on each NX version.
- ▸Can macros be integrated with PLM? -> Yes, via NX Open API.
30-Day Skill Plan
- ▸Week 1: Record simple macros
- ▸Week 2: Edit macros and parameterize features
- ▸Week 3: Automate assemblies and drawings
- ▸Week 4: Integrate macros with external data
- ▸Week 5: Develop enterprise-scale automation scripts
Final Summary
- ▸NX Open Macros provide a powerful way to automate repetitive CAD/CAM/CAE tasks in Siemens NX.
- ▸Support recorded operations, scripted automation, and integration with enterprise systems.
- ▸Enable parameterization, batch processing, and design consistency.
- ▸Essential for design efficiency, accuracy, and productivity.
- ▸Macros complement NX Open API for scalable automation solutions.
Project Structure
- ▸Macro scripts (VB, Python, or C#)
- ▸NX parts and assemblies for testing
- ▸Parameter and attribute definitions
- ▸External integration scripts or connectors
- ▸Documentation of macro workflow
Monetization
- ▸Enterprise CAD/CAM workflow automation
- ▸Consulting for design automation
- ▸PLM-integrated NX automation services
- ▸Batch manufacturing part generation
- ▸Custom macro development for engineering teams
Productivity Tips
- ▸Record macros before scripting for clarity
- ▸Parameterize scripts for reusability
- ▸Use logging to monitor macro execution
- ▸Modularize complex automation tasks
- ▸Test macros on sample parts before production
Basic Concepts
- ▸NX session, part, and assembly objects
- ▸Feature and body manipulation
- ▸Macro recording vs scripted automation
- ▸Object properties, attributes, and parameters
- ▸Event and batch automation