Hi @DanielPiker I saw an old thread of yours with kangaroo 1 about Reciprocal frames using pipes: Reciprocal structures - example definition - Grasshopper Is there any example on kangaroo 2? In the example sticks also slides too much. Could you give any recommendation how to setup Reciprocal frame…

[image] ReciprocalK2.gh (20.1 KB)

As for stopping them sliding too much - adding some very weak anchors is one way that can work if you start out reasonably close to where you end up. It should be possible with springs as well, though it gets a bit complicated adding points along each strut and keeping them straight. I guess the i…

Thank you:) I am wondering if line line goal could keep attracting closest pairs of lines too not only using repulsion. When lines radius is too small it would pack them.

That’s exactly what the scripted goal in that definition is doing - the standard line-line goal checks if the cylinders overlap, and only applies the force pushing them (to the distance at which they would be tangent) if they do. To make it do attraction as well, I just skipped that check, so when t…

Thanks, it seems I chose collision pairs in a wrong way. I tried to collide all adjacent line pairs but it must be two pairs per line segent. - > two goals per line. Now it works perfectly:)

Dear @DanielPiker , I would like to ask again about line line collision goal. Would it be possible to have a goal that attracts lines only? In the image below, the black lines identifies two closest points between each line, that I can get as an input. But I have no idea how to pull those 3 straig…

Hi Petras, I think that should be possible by setting the radius to zero in that last definition I posted. (This will still allow the lines to slide along each other) Also, with zero offset I’m not sure how much curvature of the overall surface will be possible. I guess the hexagons can be non pl…

[image] DanielPiker: I think that should be possible by setting the radius to zero in that last definition I posted. The issue is when it set to 0 it slides too much: [Rezult] Would it be possible somehow only to attract but not slide? To attract to initial line closes point. Even the cur…

LineAt_to_LineAt.gh (13.6 KB) Here’s a new goal that pulls a pair of lines together between given parameters on each

This is a very nice goal, thank you :slight_smile:

Reciprocal

Grasshopper Kangaroo

DanielPiker (Daniel Piker) October 29, 2018, 6:05pm 2

ReciprocalK2.gh (20.1 KB)

Help! How do you build reciprocal frame structures with Rhino and Grasshopper?

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Reciprocal structure optimization

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Reciprocal

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