Jeg's Videos (Grasshopper) - Grasshopper

Archilace Sculpture: Walk+Assemble

2016-07-19T10:36:04.235Z

Some attempts to find the most efficient way to assemble 'Protean' sculpture... some successful, some (at the start) very inefficient...

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written to aid Mathias Gmachl + Loop.ph with their "Archilace" workshops.

more info:
- www.loop.ph
- http://www.jeg.co/archilace-protean-sculpture/

Mesh Unfold 03

2016-07-19T10:33:52.290Z

C# based mesh unfold tool, written for Rhino+GH

written to aid Mathias Gmachl + Loop.ph with their "Archilace" workshops.

more info:
- www.loop.ph
- http://www.jeg.co/archilace-protean-sculpture/

Mesh Unfold 01

2016-07-19T10:27:02.112Z

C# based mesh unfold tool, written for Rhino+GH.

written to aid Mathias Gmachl + Loop.ph with their "Archilace" workshops.

more info:
- www.loop.ph
- http://www.jeg.co/archilace-protean-sculpture/

Evolutionary Solver finds 6-axis Robot Solutions

2013-01-18T13:00:19.469Z

Experimenting with an evolutionary solver (Galapagos) to find solutions for a 6-axis robot.

--> Input: The Genome is made up of the 6 angle values (each with a different range) for the 6 axes.

--> Fitness Value: I tested a few different combinations - initially trying to minimise difference in X,Y,Z Vectors for the Robot Plane and Plane to Align With, and minimise Distance between the 2 Plane origins.

In the video shown, I've used minimise distance between the end points of the 3 Vectors and minimise origin distance. This has the advantage of making all the fitness values in the same units (mm, cm, etc) rather than needing to combine angles and lengths.

I was surprised with how good a result Galapagos found. The angle of each axis affects those further along the robot 'arm', therefore a good solution for the final 5 axes can still appear to be a poor one just because the 1st axis value is far out. As a result I think this problem is one where good solutions are hidden in 'noise' and hard to distinguish.

See David Rutten's discussion for more on this:
http://ieatbugsforbreakfast.wordpress.com/2011/03/04/fitness-functions/

So Galapagos isn't really the right tool for this -- far better to just determine the exact solution using inverse kinematics (i.e. Lobster, et all) -- but it's fun testing its limits.

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Utilizes Galapagos, by David Rutten.

Robotic Fabrication of Non-Orthogonal Walls

2012-05-13T15:25:45.023Z

Experimenting with parametric tools that simulate brick stacking, to enable me to assemble non-uniform brick walls using 6-axis robots.

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Utilizes Lobster IK plugin, developed by Daniel…