The Unified Corribee Website

Overview

This page is about making 3D CAD models of the various Corribee and Coromandel models. Once these exist, they should be able to be used for:

• Cut away diagrams
• Desk models (i.e. a model boat to admire on your desk)
• General refit and repair planning
• Making spare parts
• Stability / CFD / RCD modeling

All of the work involved in making these models can be done using free or demonstration versions of software as described below.

The models will typically progress through three levels of increasing accuracy:

1. Not to scale
2. Scanned
3. Scale

Not to scale models are models that are not necessarily drawn to scale or else have not been verified – typically a rough first draft of a part. Scanned models are models that have been created by scanning boats or parts with a 3D laser scanner or similar. Scale models are models drawn to scale and verified to be correct against at least one physical boat and are the target end point for all models.

Examples of the various types can be seen below.

Not to scale model

The following model is created by scanning the lines of a Corribee Mk2 with bilge keels (minus the keels for now) from a Newbridge brochure. Click on the picture to download a 3D PDF which will allow you to look around the model if you are using the latest version of Adobe Acrobat reader.

The model above was created by taking the Mk2 brochure, opening the diagram with the lines of the hull and then creating a spreadsheet with the coordinates of the lines every ten pixels – roughly every six inches. The spreadsheet with the coordinates was then turned into a point cloud using the Excel to DXF file converter RapidDXF. The point cloud DXF file was then turned into a mesh using Sycode Point Cloud 1.0. The mesh was then imported into Google Sketchup 7.0 to form the master CAD file. A 3D PDF of this file for posting on the web site was created using Render Plus Systems 3D PDF.

Scanned model

There is no scanned model available at this time.

Scanned models will be made using the DAVID Laser Scanner system with the output being imported into Google Sketchup 7.0 to form the master CAD file.

Scale model

Below is an example scale model of some of the pieces of wood used on a Mk2 Corribee.

They have been drawn using the free version of Google SketchUp 7.0 and then turned into a 3D PDF file using Render Plus Systems 3D PDF that can be viewed using the latest version of Adobe Acrobat Reader.

Completed models

There are no completed models at this time. The first goal is to make a Mk2 bilge keel Corribee with standard rig as this is the most common model.

The current plan is to make scale models of the bilge and fin keel hulls and then marry them to scale models of the various versions of the deck mouldings which at the moment are believed to be standard rig Mk1, standard rig Mk2, junk rig Mk2, standard rig Mk3 and Coromandel. In parallel, deck fittings are being modelled. Once a basic shell (hull and deck moulding) has been completed and fitted with deck fittings and rig, interior packages can be fitted.

To do

Obviously there is a huge amount of work to do here, but it is mainly made up of lots of small manageable tasks – e.g. make a scale model of a cleat. If you would like to help, please contact corribeeeditors@googlemail.com so that tasks can be coordinated and duplication of effort avoided.