How To Align Planes

Hello All,

Quick Question,

I have a series of planes positioned at the center point of a series of lines. What I want to do is match the planes "rotation" in line with the first plane. I have attached a rhino file with the "1" as how the planes are positioned, and "2" as how I want them positioned.

I believe what is going on here is that the planes need to match the initial rotation of the first plane, but maybe it is more complicated then that? Please advise, thanks!!!

Attachments:

AlignPlanes.3dm, 99 KB

Replies to This Discussion

Permalink Reply by Ol OneEye on March 22, 2016 at 1:03pm

Okay All so I think I figured it out. What I did was simply take the first plane and using 'Plane Oriented' orient that plane on the preceding curves. Now I need to know if this actually works.

What I am trying to do is replicate the behavior of a rubber tube with grasshopper. As the attached file illustrates, the rubber tube has pronged members sticking out of it at equal distances from each other. The key to this is the rubber tube CANNOT TWIST, so it can bend, but again NOT TWIST. My question is, is there anyway to 'test' that what I have modelled in the attached file is actually how such a tube would behave? Are the prongs 'sticking out' at the right angles as if they were really affixed to a rubber tube that cannot twist?

Does this make sense?

Thanks!

Attachments:

Untitled.3dm, 737 KB

Permalink Reply by Ol OneEye on March 23, 2016 at 2:02pm

Okay so I have tested my method, and what I did 'sort of works' as in it works kind of in a few situations, but not at all in others.

Question: Is this something that there are geometric 'rules for' or do I need to model this in some type of physics engine. I tried solidworks, but I don't know how to model a ball joint that doesn't twist. Any ideas? Is there somewhere I can look for the answer?

again here is what I am trying to model: specifically each 'pronged elements' plane rotation.'

Attachments:

IMG_0269.JPG, 3 MB

Permalink Reply by David Rutten on March 23, 2016 at 2:25pm

There's an [Align Planes] component, does that not do what you want? Alternatively you can create Perpendicular Frames along a curve which should guarantee a minimum twisting between them.

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