Re: Can You Machine NURBS?

Jerry,

Check out http://www.mmsonline.com/ and search for NURBS.

Matthew





--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Carol & Jerry Jankura"
<jerry.jankura@s...> wrote:

> What G-Code interpreters will interpret/execute the 'few lines of

NURBS

> G-Code' to actually produce the part. Am I not right in thinking,

that until

> the controllers handle it, you'll still be stuck with your huge

files?

>
> -- Jerry
>
>
> |NURBS stands for Non Uniform Rational B-Splines. It is a way of
> |discribing a complex curve by math equations. Simular to splines.
> |
>
> |NURBS interpreters (CAD/CAM) will allow you to draw those artistics
> |shapes and import the math equation directly into the machine
> |controller. It is then up to the controller to calculate the cutter
> |path. It only takes a handful of lines of NURBS G-Code to describe

a

> |complex free flowing curve. There are two advantages to this, you

are

> |able to machine the exact shape you drew, and the post files come

out

> |of the CAD/ CAM with a 60-90% reduction in size.
> |
> |If you have ever milled a curve consisting of lots of small

segments

> |you know how taxing it can be on your machine. The surface finish
> |also suffers from these small jerky movements.