{"id":1842,"date":"2022-03-01T05:48:39","date_gmt":"2022-03-01T05:48:39","guid":{"rendered":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/?p=1842"},"modified":"2022-04-13T15:15:26","modified_gmt":"2022-04-13T15:15:26","slug":"large-assignment-2-family-of-vessels-yieshengchen-draft","status":"publish","type":"post","link":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/2022\/03\/01\/large-assignment-2-family-of-vessels-yieshengchen-draft\/","title":{"rendered":"Large Assignment 2: Family of Vessels\u00a0–\u00a0yieshengchen"},"content":{"rendered":"\n

My initial thought about this assignment is orrery, maybe like one in the 2012 movie Prometheus or the solar system model in New York museum of natural history. And then I thought about the different planets the little prince from Antoine de Saint-Exupery visited and formed an initial idea I want to try realize: a vessel consists of polyhedrons and maybe spheres and on each surface: a symbol or depiction of different stories: maybe the adults little prince met.<\/p>\n\n\n\n

To realize this concept, I started by going through slides of lectures 10 and 11 and soon found that what I can do is, perhaps, limited. I also tried Google and also found two books to reference: Arturo Tedeschi’s AAD Algorithms-Aided Design and Bachman’s Grasshopper visual scripting for Rhinoceros 3D 2017. At first, I was attracted to various cool tutorials from Google result and also from Bachman’s Grasshopper book, for example, offsetting the surface in chapter 4, morphing a logo onto a cylinder in chapter 5, etc. But there are various component to study in those tutorials. Since time is limited, I went back to what I got from lecture slides and google for more specific grasshopper python script operations I could think of.<\/p>\n\n\n\n

My first breakthrough is finding the “rs.coercecurve(l)” to get object from guid. This allow me do transformations directly on the curves I created in python script. I then tried the spiraling outward polar curve I used in previous assignments. At the same time, I tried to print and got a vague sense of the constraints of 3d printing and also found Arturo Tedeschi’s AAD book describes what is printable: close geometries, manifold mesh, and gravity.<\/p>\n\n\n\n

After coming up with a spiraling outward polar curve shell with polygon cross section, I thought maybe helix curve is more suitable. I tried connect two helix curve shell with pipes from earlier expriments and found that maybe it can be a good frame for a more irregular, interesting vessel. And this leads to my final design so far: a vessel consists of 4 units: 3 helix curve vessel and an ornament in the center made up of randomly places spheres. My ideal is to find a way to shell the joined spheres and let it be a vessel too, instead of it being just a solid ornament or a thin wall carved by Cura. I think maybe manual shell by scale shrink may work. I chose QuadSphere because it’s the only shape I currently got. I tried but failed to use RHINOPOLYHEDRA (https:\/\/www.food4rhino.com\/en\/app\/rhinopolyhedra). I also thought about making pyramids with python script.<\/p>\n\n\n\n

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3 helix sub unit is shelled by Grasshopper’s Shell Polysurface<\/figcaption><\/figure>\n\n\n\n
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front<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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perspective<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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right<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n
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front (pentagon)<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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perspective<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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right<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
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front (9 side polygon, radius 6mm)<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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perspective<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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right<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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front (triangle, radius=13, pipe_up=4, helix radius=30) estimated print time: 12h 36m<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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perspective<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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right<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n

Three forms I generated but did not print:<\/p>\n\n\n\n

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front (7 side polygon, r=16, pipe_up=7, helix_radius=82) <\/figcaption><\/figure>\n<\/div>\n\n\n\n
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perspective<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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right<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n
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front (12 side polygon, r=16, pipe_up=5, helix_radius=64) <\/figcaption><\/figure>\n<\/div>\n\n\n\n
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perspective<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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right<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n
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front (r=15, pipe_up=4, helix_radius=39) estimated print time: 16hr 52m<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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perspective<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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right<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n

Images of my printing process:<\/p>\n\n\n\n

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Image of my experiments and problems I encountered:<\/p>\n\n\n\n

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I think this image summarized some problems I encountered <\/figcaption><\/figure>\n\n\n\n

I think this image summarized some problems I encountered: how to set the indicies of closed polysurface faces to remove for shelling in the grasshopper “Shell Polysurface” component, trial and error to see which shape or form can be shelled by “Shell Polysurface” component, limitation of Cura’s spiralize outer contour function, finding that two helix curve subunit cannot stand so I have to add a third helix.<\/p>\n\n\n\n

A reflection on parametric design process<\/p>\n\n\n\n

Creating objects via programming and 3d printing allowed me to control the relative distance and sizes between objects very precisely. And the way the surfaces of spheres and various forms intersect is beyond what I can do in a more traditional way. For example, if I want to create a form involving spheres, Styrofoam balls immediately come to my mind. But it will not be possible for me to try cutting and arranging Styrofoam sphere in the same way as I do in my final printed form.<\/p>\n\n\n\n

I think my current design and skill is still far from utilizing the distinguishing characteristics of programming and 3d printing. One case in my mind is “Jack and the bean stalk” where I can use tubes and forms to create a vessel for bean sprouts that travel through clouds into the realm of the giant.<\/p>\n\n\n\n

But I think there are also some limits as to my current way of utilizing 3d printing and programming: the difficulty in navigating 3d space and how to transform ideas into script or formula. By navigating 3d space, I mean what the view ports of grasshopper showed is limited: it only has certain angles and it’s strenuous sometimes to click and drag to find the correct angle to inspect problems in design. And it’s also sometimes hard to find what went wrong in my script regarding object position. Whereas in arranging real objects, I can just move them. And it’s also sometimes hard to modify scripts to try make different effects and rotations.<\/p>\n\n\n\n

A reflection about my creative agency and intent<\/p>\n\n\n\n

I tried to come up with an idea first but soon found that what I could control is limited as described previously. Therefore, I have to do experiments, explore techniques, modify my scripts and observe the results and choose what I liked or what can contribute to my original idea. <\/p>\n\n\n\n

I think my current conclusion is that my form is a blend of my intention and some unexpected results. And I think traditional design process also has this emergent(?) property where the unexpected arise too. But I think the way the unexpected happens is different. Here it’s the result of script and software tools and sometimes a lack of total understanding of the underlying mechanism. And I think using scripting and 3d printing allowed me to iterate through more rapidly different designs and unexpected results.<\/p>\n\n\n\n

Link to my grasshopper code: https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-content\/uploads\/2022\/03\/YieShengChenLA2.gh <\/p>\n","protected":false},"excerpt":{"rendered":"

My initial thought about this assignment is orrery, maybe like one in the 2012 movie Prometheus or the solar system model in New York museum of natural history. And then I thought about the different planets the little prince from Antoine de Saint-Exupery visited and formed an initial idea I want to try realize: a vessel consists of polyhedrons and […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-1842","post","type-post","status-publish","format-standard","hentry","category-vessels"],"_links":{"self":[{"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/posts\/1842","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\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/comments?post=1842"}],"version-history":[{"count":5,"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/posts\/1842\/revisions"}],"predecessor-version":[{"id":3628,"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/posts\/1842\/revisions\/3628"}],"wp:attachment":[{"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/media?parent=1842"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/categories?post=1842"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/handandmachine.org\/classes\/computational_fabrication\/wp-json\/wp\/v2\/tags?post=1842"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}