Split multiple Breps with multiple planes

Hi everyone,

I'm new in grasshopper and I'm modelling a structure with a Waffle definition. The resulting sections are bigger than any CNC-lasercutting machine dimensions, so I decided to split each section in order to be manufactured introducing the machine width as a parameter. I have so many problems to split multiple Breps with multiple planes, and I don't know how to solve this matter. In this case, for example, i have 3 breps and each brep has to be splitted by 4 planes (that's the condition i have set), logically it should return 3x4=12 pieces, but it returns 45 different pieces! Any ideas?

These are the sections I would like to split. At the bottom, the "splitting" planes.

Here is the part of the definition i'm using to (i'm using the split component made with python scripting). I also tried with the default split component of grasshopper with similar results...

Thanks for the attention.

Attachments:

Split definition.gh, 50 KB

Replies to This Discussion

Permalink Reply by Hyungsoo Kim on September 1, 2015 at 3:00pm

Hi.

You did not internalise your referenced geometry, so, I made a demo def. for you. I don’t know if it will help or not.

This way is a bit tricky, anyway... If you can split your waffle frame face(not the whole solid frame),

Also if you can isolate your single waffle frame face and splitting frames come from each base lines by grafting, it would be easy to work with.

You can just extrude splited faces in the final step.

Attachments:

Split_multipleBreps_with_multiple_planes.gh, 15 KB

Permalink Reply by JuanViamonte on September 1, 2015 at 6:23pm

Hi Hyungsoo! Sorry about the referenced geometry, but it weights 30MB (I don't understand why).

Anyway.. Thank you so much! This is very helpful!! Now my definition is working perfectly, you rescue my project hahaha! I think I probably need more practice on dataflows. I'm very gateful to you.