3D CAD for DOS and Windows
Modeling software and service

RogCAD is freeware.  See description further down.

Visit :   RogCAD Girder and Panel Building Set   Click here

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Click on a New York City landmark for higher resolution


                  Hull wireframe modeled in RogCAD                                       Hull surface modeled in RogCAD


  Three options for an addition




RogCAD, for DOS and Windows operating systems

3D CAD modeling

Keyboard data entry CAD software from yesteryear, for
technically oriented users.  For hobby or productivity.

This software, typical of simplistic 80's CADware, does not
provide photo-realism or fast modeling routines, but it does
provide complete control over the output, being keyboard
entry based.  It's especially useful for combining wireframe
modeling with surface modeling in a customized manner.
Also, being keyboard entry based, it allows for easy editing
of designs.  One simply edits a text file containing the data
elements, using Notepad or any text editor.  RogCAD is a
general use CAD program.  You can request a copy of it or
hire me to model your project for you.

Recent project: BVI yacht 02/26/06

Recent project: BVI yacht animation

Recent project: cabin addition

Recent project: new workshop/office

Recent project: sunrise - sunset modeling

Visit the Girder and Panel home page


If you would just like a copy of RogCAD, drop me a line.
(But first take a look at the How To document,
which is a brief introduction to using RogCAD,
then the instruction document for the DOS version.)

RogCAD is available in 640 X 480 for DOS
(15 colors per palette), 

1024 X 768 and 1280 X 960 for Windows
(255 colors per palette).

Here's the Windows 1024 x 768 interface:

        click:          gear           cineplex

Click image for better detail

Projects in RogCAD are built up mostly through
the use of cubic primitives.  The user defines a
cubic shape by specifying two diagonally 
opposite vertices.

RogCAD automatically supplies the remaining
six vertices as well as the connecting lines
and planes.

These cubic elements can be skewed, resized,
rotated, translated and repeated along straight
or curved lines.

Thus generated are things like rows of mitered
boards, windows, or rows of buildings.

Points, lines and planes can also be defined
independently, and are integrated with the
cubic data structures, as are curved surfaces.

Complex curved surfaces are modeled by
stretching basic circular shapes in a variety
of directions.  The boat shown here required
about two hours of data entry.

 More about RogCAD features: 

   *  It's strictly keyboard entry, therefore inherently
      precise.  Design elements fit together seamlessly.

   *  Data for a project is displayed collectively in a
      text file, allowing data entry and editing in any order.  

   *  Can combine wireframe and surface modeling in any manner.

   *  Provides automatic shading for light source direction.

   *  Provides customizable grids and multicolor wireframe lines.

   *  Provides unlimited range of perspective points and 
      focal points, and allows you to specify these values 
      using 3D coordinates.

   *  Can overlay multiple projects.

   *  Provides excellent control of the color palette.


   *  Not compatible with any other CAD format.

   *  Slow learning curve.  You need to have an
      appreciation for the old fashioned "nuts and bolts"
      approach used in this software.

   *  Contains no libraries of predrawn elements, 
      therefore not best suited for detailed 
      drawings of standard designs.  Best suited 
      for accurately conveying the overall look of 
      an object, especially the unconventional.

   *  Surface modeling of curved surfaces is not
      fully automatic and requires a lot from the user.

   *  Surface modeling of complex objects needs to
      be done in multiple operations.

 I originally wrote RogCAD to run on my old IBM XT
 with the text-only monitor.  The data points had to 
 be plotted on paper by hand and then connected with 
 a straightedge.

 From 1993 to 2001, I developed it into its current form. 

 RogCAD is freeware.  - Roger Luebeck

 (This page last updated April 2019)

 RogCAD code

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Relativity in absolute terms

Relativity Trail, the book (free pdf)

  home page:   olden-days.me