Notilus Steeler 2025: Complete Marine Structural Design Plugin for Rhinoceros

Notilus Steeler 2025 is a specialized marine structural design plugin that operates entirely within Rhinoceros 3D (Rhino), revolutionizing the CAD-CAM process for ship and yacht engineering . Unlike generic CAD tools, Steeler automates the complete workflow from initial structural definition to fabrication-ready output, making it an indispensable tool for naval architects and marine engineers.

Steeler automates critical processes including part detection, pose number assignment, 2D part generation, and stiffener creation . It excels at handling the complex, curved geometries typical of marine structures, providing specialized tools for plate expansion, flatbar bending schemes, and custom cutouts that are essential for shipbuilding but absent in standard CAD software.

The plugin is part of the Notilus Software suite, designed specifically for Rhinoceros users in the marine industry . With features supporting real-time collaboration and efficient fabrication drawing generation, Notilus Steeler has established itself as a game-changer in yacht and ship engineering.

⚓ Primary Users

This professional marine structural design plugin is designed for:

Naval Architects & Marine Structural Engineers designing ship hulls, superstructures, and internal framing systems
Yacht & Boat Designers creating detailed structural layouts for high-end vessels
Shipyards & Marine Fabricators generating production-ready cutting files and workshop drawings
Offshore & Industrial Designers modeling heavy steel structures and marine equipment
Structural Detailers producing accurate bills of materials (BOM) and assembly documentation

⚡ Key Features & Capabilities

????️ Automated Structural Modeling

Auto Part Definition & Frame Generation:

Automatic detection and definition of structural parts
Auto frame generation with both transversal and longitudinal orientations available
Assign pose numbers automatically to streamline production workflows

Stiffener Generation & Cutouts:

Automatic stiffener generation with various cutout types for frames, floors, and beams
Custom cutouts (round or limber type) can be added at any point along stiffeners
Integrated custom cutout parameters for precise design control

???? Specialized Marine Tools

Plate Expansion & Flatbar Bending:

Auto plate expansion for complex curved hull surfaces
Auto flatbar bending schemes for production-ready curved members

Bracket Generation:

Four types of brackets automatically created based on selected structural parts and parameters
Automatic alignment of brackets without manual positioning

???? Production & Fabrication Output

Cutting File Preparation:

Fast cutting file preparation for CNC machines
Stiffener diagrams for workshop documentation
Auto marking for part identification

Assembly Management:

Define subassemblies with custom-named main assemblies
Track assembly destinations in structural BOM list
Weight, Center of Gravity (CoG), and description fields added to layouts

???? Documentation & Collaboration

Bill of Materials (BOM):

Live Bill of Materials updates as design changes
Comprehensive structural BOM lists with assembly tracking

Real-Time Collaboration:

Real-time collaboration features for team-based projects
Efficient fabrication drawings for workshop use

???? What’s New in Version 2025

Feature	Description
Auto Frame Orientation	Both transversal and longitudinal orientations available for frame generation
Enhanced Stiffener Cutouts	Multiple cutout types with customizable parameters; update per plate using `nsUpdateStiffenerCutout` command
Extended Assembly Management	Subassembly definitions with custom naming, assembly destinations, and Weight/CoG fields
Improved Bracket Types	Four bracket types with automatic generation and alignment
Integration with NotilusDrafting	End-to-end assembly management across Steeler and Drafting plugins