{"id":12220,"date":"2024-09-25T02:01:08","date_gmt":"2024-09-25T08:01:08","guid":{"rendered":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/?p=12220"},"modified":"2024-09-25T10:51:14","modified_gmt":"2024-09-25T16:51:14","slug":"louis-parametric-vessels","status":"publish","type":"post","link":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/2024\/09\/25\/louis-parametric-vessels\/","title":{"rendered":"Louis’ Parametric Vessels"},"content":{"rendered":"\n

Program<\/h2>\n\n\n\n

I created the models for my vessels using the following Grasshopper program.
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The main inputs to my program are the three lists on the left side: one of curve complexities, one of curve radii, and one for z offsets. It will generate a curve, using the function chosen at the top — either simple polygons, stars, or sinusoidal waves. The later two have additional options, located at the bottom of the page.<\/p>\n\n\n\n

There is a “twisting” step, which rotates each curve using a supplied angle. And finally, the last step produces a vase by lofting two surfaces, truncating the interior, and subtracting them.512<\/p>\n\n\n\n

LouisJenckaLA2<\/a>Download<\/a><\/div>\n\n\n\n

Design Process<\/h2>\n\n\n\n

With my Grasshopper program, I worked on creating three shapes, each one using a different curve function (simple polygon, sinusoidal waves, and stars). For each shape I began by playing with the parameters, and would search for an appealing direction to work in. After I found a direction to work in, I further modified the parameters to refine my shape. When I was happy with my design, I exported it as a 3MF file, and began work on slicing and printing via Cura.<\/p>\n\n\n\n

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    Parametric Design<\/h3>\n\n\n\n

    This design process is very cool! This programmatic workspace allows me to iterate and refine my work much more quickly than I could with a physical material. And also, importantly, it makes the ordering of work less important! Decisions that I make early on can be revisited and changed, without needing to redo all of the following work.<\/p>\n\n\n\n

    A disadvantage however, is that it takes care and effort to describe<\/em> via coding what you want to happen. This imposed distance between yourself and the end shape is a little frustrating; poking a hole in a clay vessel is intuitive (even though it takes skill to do well), but tricky to precisely place a hole in a lofted closed polysurface!<\/p>\n\n\n\n

    Creative Intent<\/h3>\n\n\n\n

    While developing my Grasshopper program, I decided to create a vessel using each of its curve functions. I put together my first vessel using the sine-wave function. I wanted to produce interference patterns in this vase, by combining multiple sine waves per curve. I thought these patterns could give it an organic look.<\/p>\n\n\n\n

    For my second vase, I found that the star function could create a very pleasing grooved texture. I made a round vessel which twists at both ends to emphasize these groves.<\/p>\n\n\n\n

    While experimenting with the polygon-curve function, I settled on creating a vase with a smoother surface than the other two. Its component curves are all triangles, which successively rotate to form a corkscrew shape that tapers to a sharp peak.<\/p>\n\n\n\n

    Vessels<\/h2>\n\n\n\n
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    Printing<\/h2>\n\n\n\n

    This printing was challenging in a few ways.<\/p>\n\n\n\n

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    • Part ways into my first print, I found that there was a section with small holes and jagged edges. This turned out to be a conflict between my mesh and the slicer, where the tight twist produced thin walls and other features that Cura couldn’t preserve. I mitigated this by increasing the thickness of my vase’s walls in GH, but later discovered that this might have been possible to address in Cura by setting the “Slicing Tolerance” option to “Inclusive”.<\/li>\n\n\n\n
    • Small ridges in my first print were very misaligned between layers. Following some advice I found online, I tried adding weight to my desk to dampen vibrations from the printer — this significantly improved the quality of my prints!<\/li>\n<\/ul>\n\n\n\n
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      Final Prints<\/h2>\n\n\n\n
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      \"\"<\/figure>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"

      Program I created the models for my vessels using the following Grasshopper program.The main inputs to my program are the three lists on the left side: one of curve complexities, one of curve radii, and one for z offsets. It will generate a curve, using the function chosen at the top — either simple polygons, stars, or sinusoidal waves. The […]<\/p>\n","protected":false},"author":69,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[55],"tags":[],"class_list":["post-12220","post","type-post","status-publish","format-standard","hentry","category-large-assignment-2-vessels"],"_links":{"self":[{"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/posts\/12220","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/users\/69"}],"replies":[{"embeddable":true,"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/comments?post=12220"}],"version-history":[{"count":12,"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/posts\/12220\/revisions"}],"predecessor-version":[{"id":12352,"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/posts\/12220\/revisions\/12352"}],"wp:attachment":[{"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/media?parent=12220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/categories?post=12220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/tags?post=12220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}