Defining wide point in a loft

Hi everyone,

I'm trying to design a surfboard using grasshopper. With surfboard design you want to define the widths at points 1, 2 and 3, with 2 being the widest point. What is the best method for lofting a surface that will not go wider than a certain point?

Thanks,

Laurens

Replies to This Discussion

Permalink Reply by nikos tzar on May 24, 2015 at 9:21am

Hello Laurens,

I believe your best bet is using sweep2.

If you want point 2 to be the widest then you need to create 2 arcs (pt2 to pt1 & pt2 to pt3) which will both have [unit Y] as a starting vector (component [Arc SED]). You can then join the arcs into 1 curve, mirror it (for the other side of the board) and do a sweep2 between the 3 sections with the 2 curves as rails.

Then you are just missing the 2 triangles to close the board.

If you can post your file we can get more specific.

Cheers,

Nikos

Permalink Reply by Laurens on May 24, 2015 at 11:22am

Thanks a lot Nikos, really helpful. I'm going to try to work it out myself from, here seems to be not too difficult, will no doubt come back if something else crops up!

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