help to create a grasshopper project !!! from an amateur

i want to create a grasshopper project to define a central axis in a 3d object (like the bone in the hand for example) and to be able to cut sections of the object every x distance (like slices) so that i can create the object from these slices.

see the attached sketch.

thanks!!!!!!!

Attachments:

1.jpg, 259 KB

Replies to This Discussion

Permalink Reply by Dirk Anderson on May 31, 2009 at 6:10pm

If you are after a straight axis, you can set up a line that acts as a vector, creating a plane at one end and using the line as a normalised vector, move (copy) the plane a set distance through a series component. Then use a Brep / Plane intersect component to generate the sections.

Permalink Reply by idtasos on June 1, 2009 at 9:56am

Thanks!!!

Permalink Reply by idtasos on June 1, 2009 at 9:57am

And if i want to define a spline as an axis and create sections in the planes vertical to the axis?

Permalink Reply by J.Filigran on June 1, 2009 at 10:57am

Hello!
I played around a bit. The attached definition tries to find the axis for the objects automaticly and then procedes to generate the sections. You just need to reference the Surface.The result is not always complete when the object is too bent and is on the whole very sketchy, but maybe it will be of some help.
Good luck

Attachments:

Axis Splits.ghx, 521 KB

Permalink Reply by idtasos on June 1, 2009 at 1:49pm

it seems that all the sliders dont move in grasshopper generally! why is that?

(i apologise for the amateur questions!)

Permalink Reply by Dirk Anderson on June 1, 2009 at 6:49pm

idtasos - you need to be more specific with your comments. I'm guessing that with a heavy file (a lot of parametric calculations) it may be your processor speed + the intense data calculations that create a lag between slider movements.

Permalink Reply by idtasos on June 2, 2009 at 5:25am

For some reason grasshopper sliders didnt work. Even after restarting rhino. Anyway now the problem has gone, without knowing why.

Thank you for your time to reply!

idtasos

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