Hi, I am trying to replicate vase mode in Grasshopper but with a twist and I can’t get it working: The Contour component produces planar “slices”, which are in this example called “base curves”. After rebuilding and moving some control points they are called “pattern curve” My goal is to transfo…

If i understand your result looks like helix? vaseMode_2.gh (90.1 KB) [image]

You can use the same script vaseMode_2.gh (103.8 KB) [image]

Thanks! Though the pattern is more complex than just normal “zig zag”, I am afaid: I takes the previous layer into account and optimizes the position of the “zigs” and “zags” to keep a nice grid: [image] this I want to avoid: [image] edit: if someone is interested I can post the definition, I…

Are you trying to make a toolpath for the printer? Or do you want a surface of zero thickness you can run through a slicer program to create a toolpath?

actually I tried both but got frustrated with the slicer. You can import open meshes into cura as long as they can be sliced horizontally. Though cura does’t produce very good vase /spiral mode toolpaths, I am trying to make my own.

I know nothing about “vase mode” but it looks to me like one issue is that the seams are not aligned. I fixed that by moving the seam on all lines to the first point where they cross each other in top view. The second issue is that alternate zig-zag curves are out of phase when spiraled. I wonder…

I think you are right that aligning the seams is necessary. Thanks … and yeah, the “out of phase” problem is driving me insane. It gets kinda tricky when you look at more complicated shapes, and when there are not the same amount of points in each layer: [image] maybe one has to spiralize first …

Joseph: Here’s an explanation of Vase Mode: Make a cylinder 20 units high and 20 units radius: [screenshot_01] This cylinder has no thickness but it can still be 3D printed using Vase Mode. To do this you run the Rhino exported geometry (STL format) through a slicer program that produces the too…

Here’s what I got. Ignores your curves altogether and starts from scratch. Parameters adjusted to approximate your dimensions. [vaseMode_2020Sep18b] vaseMode_2020Sep18b.gh (97.4 KB) Applying this idea to an arbitrary shape is a different can of worms! What shape?

Help with Vase Mode (3D Printing)

Grasshopper

Konrad (Konrad) September 18, 2020, 8:04pm 3

thank you, that makes it more clear. Yes, exactly like helix - but the example I posted is very simplified. The shapes could be very irregular:

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Help with Vase Mode (3D Printing)

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