Grasshopper

algorithmic modeling for Rhino

My 2D CNC cutting path generator

Hi !

Here is my first iteration of a 2D CNC cutting path generator.

It is intended to work with KUKA|prc to do plasma cutting with my robot, but it could be used to generate cutting paths with any CNC cutting device, I guess.

Within the set of curves used as example, the definition finds and labels :
-Non-closed curves
-Cases where the "lead-in" segment cuts an actual part

The inner loops are cut first, and the offset for tool diameter is adjustable.
For the non-straight shapes, I used an adjustable "divide by length" discretization.

On the "To do" list : 

-Add an option for tangent "lead-ins"

-Add "lead-outs"

-Sort the inner and outer loops to achieve the shortest "flyover" time (salesman problem)

Suggestions welcome

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Permalink Reply by Johannes Braumann on December 23, 2015 at 5:11am

Nice on Olivier!

Looking forward to seeing the results!

Permalink Reply by Olivier Suire on January 7, 2016 at 8:20am

Here's a new version with 

-Debug for the case there is only one part (one outer loop)

-Better offsets (thanks Markku)

-Better discretization of curves, based on deviation

-On-screen indication of outer and inner loop lengths (requires the "Human" plugin)

-"Flyover" time optimized for outer and inner loops

Cheers, and a happy new year to all !

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Permalink Reply by Olivier Suire on January 9, 2016 at 5:54am

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