OCX Import Plugin v310
From schema to structure
Import maritime vessel structural data from OCX 3.1.0 files into Rhino 8. Panels, plates, stiffeners, brackets, pillars — 578 elements in 7.6 seconds. Zero failures.
What You Can Do
Five ways to work with vessel data
ImportOCX is a versatile tool that goes beyond simple file conversion. From initial schema evaluation through production-ready output, it supports the full lifecycle of working with OCX vessel models.
Schema Evaluation
Navigate and understand complex OCX XML schemas. Explore the full structure of vessel data files, inspect element hierarchies, and evaluate schema coverage before committing to a full import.
Model Review
Workspace Explorer, Design Views, and Catalog Browser give you multiple ways to inspect imported vessel models. Browse structural arrangements, review material catalogs, and navigate the complete design hierarchy within Rhino.
Model Validation
Generate Weight & CG reports, Volume & CG reports, and comparison data to validate structural models against classification requirements. Verify completeness and accuracy of imported vessel data.
Model Conversion
Leverage Rhino’s extensive format support to convert OCX vessel models to STEP, IGES, 3D printing formats, and NC cutting data. Bridge the gap between classification exchange and downstream production workflows.
Model Extension
Extend imported models with FEM/FEA idealization, work with both moulded and physical geometry representations, and prepare structural data for finite element analysis workflows.
Processing Summary
21,000+ elements. One import.
Full processing summary from D-ROPAX-OCX_v310 — a production-scale RoPax vessel model. 21,486 of 21,629 elements successfully imported.
| Element Type | Model | Imported | Skipped | Failed | Time |
|---|---|---|---|---|---|
| Reference Surfaces | 241 | 241 | 0 | 0 | 21.1s |
| Panels | 670 | 669 | 0 | 1 | 2:03 |
| Openings | 4,521 | 4,431 | 0 | 90 | 0.0s |
| Seams | 1,595 | 1,595 | 0 | 0 | 0.6s |
| Plates | 2,266 | 2,271 | 0 | 0 | 1:12 |
| Stiffeners | 11,851 | 11,829 | 22 | 0 | 154:42 |
| Conn. Configurations | 0 | 0 | 0 | 0 | 0.0s |
| Penetrations | 0 | 0 | 0 | 0 | 0.0s |
| Edge Reinforcements | 0 | 0 | 0 | 0 | 0.0s |
| Brackets | 0 | 0 | 0 | 0 | 0.0s |
| Pillars | 294 | 294 | 0 | 0 | 53.0s |
| Compartments | 191 | 156 | 13 | 22 | 57:42 |
| TOTAL | 21,629 | 21,486 | 35 | 113 | 216:56 |
Total processing time (all imports): 216:59
04 — The OCX Standard
Built on open standards
The Open Class 3D Exchange standard (OCX Schema v3.1.0) is maintained by the OCX Consortium at 3Docx.org. It provides an XML-based format for exchanging 3D ship structural data between design, classification, and construction systems.
The plugin implements full support for the v3.1.0 schema, parsing every structural element type defined in the specification with zero silent failures.
View the OCX Schema on GitHub→- Vessel metadataClassification, builder, tonnage, statutory, designation01
- Coordinate systemsReference surfaces and spatial frameworks02
- Structural arrangementPanels, plates, stiffeners, brackets, pillars03
- Catalog dataMaterials, bar sections, hole shapes04
- Physical propertiesCompartments and volumetric data05
05 — Heritage
A tradition of precision
“The hand that drew the hull is the same hand that clicks Import.”
Maritime structural design has always been a craft of translation — from the imagination of the naval architect to the physical reality of steel and plate. The instruments change. The knowledge doesn't.
This plugin is the next instrument in a tradition that runs from hand-lofting floors to the drafting table to computer-aided design. It doesn't replace the master builder's knowledge — it gives that knowledge a digital instrument precise enough to meet it.
Mystic Bound Endeavors was founded by a career maritime design professional who built this plugin because no adequate OCX importer existed for Rhino. This is software by practitioners, for practitioners.
The lineage
What comes next
The OCX importer is the foundation. Nesting, NC cutting, plate flattening, FEM/FEA integration, and naval architecture tools are planned. One plugin suite, built for how you actually work.
06 — Licensing
Start building today
Non-Commercial License
Free
For academic research, personal learning, open-source projects, and evaluation.
- Full plugin functionality
- All structural element types
- Workspace Explorer & Catalog Browser
- Community support (best effort)
- Attribution required in published work
Per-seat. Online activation. No credit card required.
Commercial License
Contact us
For professional firms, shipyards, and commercial maritime design work.
- Everything in Non-Commercial
- Commercial use rights
- Priority bug fix support (14-day acknowledgment)
- Per-seat subscription via Stripe
- Invoice-based purchasing available
Per-seat annual subscription. Pricing announced Q3 2026.