I'm trying to write the first stage of a script that generates support structures for 3D printed objects and could really use some help

Hello, I’m a university student and am in a situation where I have to create the g.code to 3d print my own support structures.

Basically, as the image shows, the first step is to generate a brep under the overhangs and undersides of objects. There have already been point based versions of this, for example here: https://www.grasshopper3d.com/m/discussion?id=2985220%3ATopic%3A887878 where a series of points is projected. However, rather than just a rough series of points, I would like to create precise regions within which I can ‘trim’ my support structure (which will be another problem I’ll eventually have to deal with).

The second stage, if we can work out the first (i’ve tried searching for 3 hours and came up with nothing) is to further divide this region and create a buffer zone between the support and precise printed object (shown in the second part of the illustration).

Thank you so much for your help.

Mikail

MShadow (Mesh Shadow)

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JOSEPH THANK YOU SO MUCH!!! I can’t begin to expressive how appreciative I am of the time you took from your day to help a random stranger. Will just test this script out right now!!

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Well, don’t get too excited, it’s only an idle doodle showing how the base perimeter curve cast by MShadow might be used to create “support structures”. It is far from a definitive solution to the general problem of creating low density lattice supports for 3D printing.

Now that I think about it, a lattice is similar to this scaffolding model structure I did three years ago on the old forum:



If you had posted a model of your own I would have used your shape instead of a cube and replied with a working model instead of just an image.

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