Non Planar 3D printing

Does anyone here know anything about this:

This outfit does not seem to be ready for the real world yet, but they apparently base their methodology around Rhino & Grasshopper. I haven’t been able to find anything about this outfit that seems to be real, but maybe they are on to something that actually works.

Hello
I have done a tool to make non planar printing. I cant go on detail but it is a double curvature and they also change the flow depending on the thickness which changes everywhere. Object is about 2 m long 50 cm wide.

Thanks for your reply Laurent - I’m happy to see I’m not the only one interested in this subject. But…your response is unusually mysterious. Tool? it? they? Object? Now I have even more questions than before.

What I did is related to this

I receive layers (3d surface with holes) and my tool make the single curve path. It is a little part but it was not easy to have the speed, precision … for such big objects.
You can see the products here

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Thanks for that - your concept of a continuous tool path makes perfect sense. Most everyone in the current 3D printing world sooner or later struggles with the seam issue, and your approach completely eliminates that problem.

When I was in the business of writing code to create milling machine toolpaths for aircraft surfaces we output only 3D points and normals, with offsets appropriate for the type of cutter that would be used to machine the part. This data was then input to another piece of software called a post processor that was developed by the milling machine manufacturer. This code took our input and (somehow) created output (at that time is was punched tape) that drove the milling machine’s motion controllers. I remember watching one of the 5-axis machines as it cut out a part from a solid aluminum block, and was stumped at how our points & normals got converted into all the code required to make the correct moves without bumping into something. So now I wonder if anyone is working on some similar capability for real 3D printing, and if so, what the printer might look like.

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Hello,
I have found this plugin on blender to make non planer curves for 3D printing.

But if you see it is not the best options at the splits.

Does anyone have references or documentations to make something like this with grasshopper. I have been reading a lot of documentations and they say it is possible using a heat map. But I have not been able to make a make through with this.

And that that is close

In particular the example in this post from the thread Laurent linked

This old tool could work if your mesh is not too fine. I didn’t finish the optimisation.
I think one of its advantage is the output as a real distance.

Wow , @laurent_delrieu fantastic again