Unlocking Automation in Timber Construction: A Guide to the Cadwork API
In the world of timber construction, efficiency isn't just about how fast you can saw; it's about how smart you can model. Since version 27, cadwork has offered a powerful Application Programming Interface (API) that allows users to move beyond standard tools and build custom solutions.
Whether you are looking to automate repetitive tasks, integrate with ERP systems, or create entirely new modeling features, the cadwork API is your gateway to a more streamlined workflow. Why Use the Cadwork API?
The cadwork API (specifically the CwAPI3D) enables the creation of plugins and helper scripts directly within the cadwork 3D environment. This is particularly valuable because:
Custom Automation: You can automate "piece-by-piece" exports or complex shop drawings that typically require manual clicks.
No Core Changes: You can implement customer-specific functions without altering the main cadwork program code.
Ease of Use: While it supports professional-grade development, it is primarily built for Python, a language known for being beginner-friendly yet powerful. Key Technical Features
The API provides a multitude of basic functions for interacting with cadwork 3D elements.
Python Integration: Uses CPython, allowing you to use standard external modules like math, csv, or tkinter alongside the cadwork library.
Controller-Based Architecture: Developers use specific "controllers" to manage different aspects of the model:
Element Controller: For creating and manipulating parts (e.g., creating drillings or vectors).
Utility Controller: For gathering user input via dialogs (e.g., getting a point or a boolean "Yes/No" from the user).
Attribute Controller: For managing and automating metadata (Auto Attributes).
Rapid Prototyping: You don't need to restart cadwork to test changes. Simply save your Python file and rerun the plugin to see updates immediately. Getting Started with Development
To begin building your own tools, follow these standard steps: Cadwork Python Documentation
The cadwork API, specifically the CwAPI3D, is a powerful tool designed to automate and extend the capabilities of cadwork 3D using Python or C++. It allows users to create custom plugins, automate repetitive modeling tasks, and integrate cadwork with external business systems like ERP or Excel. Core Capabilities
The API provides deep access to the 3D engine, enabling a wide range of custom operations:
Element Manipulation: Create, modify, and delete parts such as beams, panels, and auxiliary elements. cadwork api
Data Extraction: Perform list calculations and export bill of materials (BOM) directly to spreadsheets or external databases.
Automation: Automate shop drawings, piece-by-piece exports, and complex geometry generation like hanging points or edge details.
Custom UI: Build user-specific dialog interfaces and plugin buttons within the cadwork environment to trigger scripts. Development Environment
Supported Languages: Python (CPython) is the primary scripting language, but a C++ API is also available for high-performance needs.
Installation: The Python library can be installed via pip using pip install cwapi3d.
Setup: Scripts must be placed in a specific directory: .../userprofile/3d/API.x64. Each script requires its own folder named identically to the Python file.
Hot Reloading: A major advantage for developers is that cadwork does not need to be restarted to test code changes; saving the script and rerunning the plugin is sufficient. Essential Resources Cadwork Python Documentation
Introducing the CADwork API: Unlocking the Power of CAD Data
As a developer, have you ever struggled with accessing and manipulating CAD data in your applications? Look no further! The CADwork API is here to revolutionize the way you interact with CAD files and data. In this post, we'll explore the capabilities of the CADwork API and how it can benefit your development projects.
What is CADwork API?
The CADwork API is a programming interface that allows developers to access and manipulate CAD data from within their applications. It provides a set of APIs that enable you to read, write, and modify CAD files, as well as perform various operations on CAD data.
Key Features of CADwork API
Benefits of Using CADwork API
Example Use Cases
Getting Started with CADwork API
To get started with the CADwork API, simply:
Conclusion
The CADwork API is a powerful tool for developers working with CAD data. With its robust features and easy-to-use interface, it can help streamline your development process, improve data accuracy, and increase flexibility. Whether you're building a CAD viewer, a data analysis tool, or an automation script, the CADwork API is the perfect solution. Start exploring the CADwork API today and unlock the full potential of your CAD data!
To develop a solid post about the cadwork API, it's important to focus on its role in bridging the gap between CAD modeling and automated timber construction workflows.
Here are a few options for a professional social media or blog post (e.g., for LinkedIn), ranging from high-level benefits to technical implementation.
Option 1: The "Efficiency & Automation" Hook (Best for LinkedIn)
Headline: Stop Clicking, Start Coding: Unlocking the Power of cadwork API 🚀
Are you still performing repetitive manual tasks in your timber engineering workflow? It’s time to talk about the cadwork API.
Whether you are using the Python/C++ API or exploring the integration of Rhino.Inside Cadwork, the API serves as the ultimate bridge between standard CAD and advanced, automated production. Why it matters:
Workflow Optimization: Automate routine modeling tasks, from simple attribute assignments to complex geometric generation.
Seamless Integration: Link your cadwork models directly to external data sources, structural analysis software like Dlubal (e.g., via the LIGNA hall configurator), or ERP systems.
Future-Proofing: Leverage the Python API to stay agile as timber construction moves toward more digital, "Industry 4.0" manufacturing.
The cadwork 3D environment is powerful, but its API is where true scalability lives. How are you using automation to push your timber projects further?
#TimberEngineering #CADWork #Automation #Python #WoodConstruction #DigitalFabrication
Option 2: The Technical "Deep Dive" (For Developers/Power Users)
Headline: The Bridge Between CAD and Code: Exploring the cadwork Python API 🛠️
For those looking to push the boundaries of BIM in timber construction, the cadwork API is a game changer. The ability to manipulate 3D elements programmatically allows for precision and speed that manual drafting simply cannot match. Key Tech Capabilities:
Rhino.Inside Integration: Use Rhino’s geometry kernel to drive complex stand-alone or web applications directly within the cadwork ecosystem.
User Attribute Management: Programmatically manage and structure unlimited user attributes—essential for modern, data-rich BIM models. Unlocking Automation in Timber Construction: A Guide to
Open Development: With libraries available on platforms like GitHub, the community is actively building tools to refactor and optimize cadwork-based workflows.
Automation isn't just about speed; it's about eliminating human error in the transition from design to the production line.
Check out the latest Cadwork News here to see how version 30 and the Hoops Visualize engine are further enhancing these capabilities.
#BIM #SoftwareDevelopment #CadworkAPI #ComputationalDesign #TimberDesign Pro-Tips for Your Post:
Visuals: Use a video of a script running in real-time (e.g., a hall being generated automatically) or a side-by-side of a Rhino/Grasshopper script feeding into cadwork.
Tagging: Mention cadwork or specific integration partners to increase visibility.
Call to Action (CTA): Ask a question like, "What is the one task in cadwork you wish you could automate with a single click?" News Version 30 - cadwork 3D
for element in selected: # Get length length = ec.get_length(element) # If beam is longer than 6000 mm if length > 6000: # Change material to GL24h ec.set_material_name(element, "GL24h") # Add a visual marker (red color) ec.set_color(element, (255, 0, 0))
print("Processed", len(selected), "elements.")
Note: Actual method names depend on your cadwork version and API wrapper.
For long-span glulam beams, camber (upward curvature) is mandatory. Using the API, engineers extract the beam's support points and self-weight, calculate the deflection curve (using an external structural library), and write the camber values back into the beam's geometry as a vertical curve—all without leaving cadwork.
You can programmatically create beams, columns, panels, plates, and custom solids. Beyond creation, you can move, rotate, stretch, or boolean operations (subtract, union, intersect) objects. This is essential for parametric design.
Creating geometry requires defining points and vectors.
public void CreateBeamExample()
// Define start and end points (Units are typically Millimeters)
cwGeometry.cwPoint3d startPoint = new cwGeometry.cwPoint3d(0, 0, 0);
cwGeometry.cwPoint3d endPoint = new cwGeometry.cwPoint3d(3000, 0, 0);
// Create the beam
// Returns the ID of the newly created element
int newBeamId = _api.createBeam(startPoint, endPoint, "MyBeamName");
if (newBeamId > 0)
// Apply a material/attribute
cwAPI.cwIElement newBeam = _api.getElement(newBeamId);
// Set dimensions (Width, Height, Length)
newBeam.setWidth(100);
newBeam.setHeight(200);
// You often need to regenerate the screen to see changes
_api.regen();
To ensure your scripts are robust and maintainable, follow these guidelines:
In the world of heavy timber construction, Cadwork is the silent heavyweight. For decades, it has been the digital chisel for log homes, bridges, and soaring glulam arches. But for most users, Cadwork feels like a vast, ancient library: infinitely knowledgeable, but rigid. You can pull any book (or beam) off the shelf, but you must walk the aisles yourself, manually.
Then came the Cadwork API (Application Programming Interface). And suddenly, the library developed a ghost.
The API is not a feature you click. It is a backdoor into the soul of the software—a text-based interface that lets you speak to the 3D model in a language of logic, loops, and variables. To the uninitiated, it looks like a messy script of Python or C++. But to the initiated, it is a lever that moves mountains. Support for multiple CAD formats : The CADwork