Hinges

Hello!

First day of Grasshopper use, starting to get the language but just got tripped up.

I am trying to make the rhino model attached to act as a series of hinges. I have included an example from another forum that I found here of a hinges arm to base my model off, which was working smoothly until I got stuck on how to hinge layer 2 to three so that it follows the movement of layer three while still being able to move on its own. The example of the hinged arm looks like he/she used control points off a line, but I cannot do this with a polysurface.

Any guesses?

many thanks.

Attachments:

HINGES_1.3dm, 414 KB
HINGES_2.gh, 17 KB

Replies to This Discussion

Permalink Reply by Hyungsoo Kim on November 26, 2014 at 2:43am

Something like that? I'm not sure.

Attachments:

HINGES_Revised.3dm, 412 KB
HINGES_Revised.gh, 23 KB

Permalink Reply by Danny Boyes on November 26, 2014 at 4:02am

The example you found has the Planes about which you Pivot the geometry in a hierarchical relationship. i.e. When you rotate the first section the pivots of the other sections also rotate.

If you look at the image below it shows the relationships of the example and the disjointed nature of your method.