Special Traits of the Bluesurf

We’ve talked before about NURBS surfaces always wanting to be four-sided, much like a piece of fabric made from threads running perpendicular to one another. It can be stretched and pulled, but it al…

Interpolation is the Name of the Game

My method of explaining the rather wide reaching topic of surfacing is to start from concepts, move on to how to use specific tools, and what the tools do, and then to talk about why or in what situa…

It’s all about Curvature, and Curvature is all about Splines/Curves

If you are an engineer reproducing Industrial Designer stuff, one of the first things you have to do is understand curvature. It’s a different language, and a different way of thinking about geometry…

Custom Linetypes and Hatch Patterns Part 2

The previous article discussed creating custom line types using a simple combination of dash, dots and gaps represented by numbers.

This post takes it ahead by arranging multiple line…

Custom Linetypes and Hatch Patterns

For those who have used AutoCAD for a long duration and tried exploring the many under-the-hood techniques, understanding the cryptic methods of creating line types and hatch patterns was a daunting …

Automation as a CAD Standards Enabler

CAD Standards, especially those pertaining to layers can be enforced effectively by providing tools to the user that will make him/her easy to adhere to the published guidelines. The previou…

Automation in the Draft Environment: Layer Handling

For those who have done some LISP programming for old generation CAD programs, coding was fun. LISP punched lots of power in few keywords or lines. Moreover the commands could be issued to the CAD pr…

SEACAD.ini – Under the Hood

This might be old hat to many of you, but for those this is new, here’s a quick run through the various ‘undocumented’ settings in the SEACAD.ini file.

About the SEACAD.ini File

Automation: Parametric Assemblies

This article builds on the knowledge gained in the previous post Parametric Parts which discussed how to parametric parts by changing the values of part variables.

It is also possible to a…