{"id":90,"date":"2021-04-12T11:49:37","date_gmt":"2021-04-12T09:49:37","guid":{"rendered":"https:\/\/melvyn-perard.me\/?post_type=fw-portfolio&p=90"},"modified":"2023-10-13T14:41:22","modified_gmt":"2023-10-13T12:41:22","slug":"string-art-machine","status":"publish","type":"fw-portfolio","link":"https:\/\/melvyn-perard.me\/en\/project\/string-art-machine\/","title":{"rendered":"String Art Machine"},"content":{"rendered":"
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The idea<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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After I made the Dali work, several people came to ask me if it was for sale, so I saw a potential to make some money. I thought about it and I said to myself that it was impossible for me to spend all my weekends weaving artworks. So I decided to create a machine that would allow me to do other things while the works were being created.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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The design<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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So I searched the Internet to see if there were any such machines already available and I did find some. I then took inspiration from two machines and started to design my own using the 3D design software Fusion360.<\/p>

Afterwards, I inquired about the electronic operation of the machines. I then discovered that one of the creators of one of the machines had also created \"GRBL ESP32\". GRBL is a program that allows anyone to create their own CNC machine at home using an Arduino programming board. The advantage of GRBL ESP32 is that this program runs on an ESP32, a much more powerful board than an Arduino and which has wifi! So I wanted to make an electronic board that would make the link between the ESP32 and the motor driver and the different buttons.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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The realization
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Once the different 3D models were created, I started 3D printing the parts on my 3D printer and then I also did the machining of the larger parts on the CNC in the FabLab.<\/span>\u00a0<\/span><\/p>

The machining is directly configurable from the Fusion360 software and I was helped by the FabManager to take into account the machine constraints during the machining preparation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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The tests of works
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With the machine assembled, I was able to start a test procedure, as follows:<\/span><\/span><\/p>

–<\/span>\u00a0Check that the machine positions itself correctly when it is asked to move 1 nail.<\/span><\/p>

–<\/span>\u00a0The wire wraps properly around the nails.<\/span><\/p>

–<\/span>\u00a0The picture is correctly represented.<\/span><\/p>

So I had to make the necessary modifications to validate my test procedure. Thanks to this, I was able to produce my first work without any external help. The machine worked in total autonomy without any problem.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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The version 2<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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After several tests, I saw that this version needed some improvements. So I took the initiative to make a second version and to remove all the problems of the first one and to add new things.<\/p>

This is particularly the case for the positioning which is not precise enough and the belt system which has problems with pitch jump. So I installed a 10:1 gearbox directly on the motor.<\/p>

With this new version, I can accommodate any support from 20 to 60 cm in diameter.<\/span>\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Commercialization<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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All this is driven in part because I want to market my artwork. So I am in the process of creating a sales site. I'm also working on everything that is the packaging of the product.<\/p>

I'll be happy if it all works out, because it will be a kind of reward for the hundreds of hours of work I put in. But if it doesn't, I'll have the credit of having tried and I'll be able to learn from my mistakes for the future!<\/p>

To be continued...<\/span>\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"featured_media":869,"template":"","fw-portfolio-category":[14],"class_list":["post-90","fw-portfolio","type-fw-portfolio","status-publish","has-post-thumbnail","hentry","fw-portfolio-category-personels"],"_links":{"self":[{"href":"https:\/\/melvyn-perard.me\/en\/wp-json\/wp\/v2\/fw-portfolio\/90","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/melvyn-perard.me\/en\/wp-json\/wp\/v2\/fw-portfolio"}],"about":[{"href":"https:\/\/melvyn-perard.me\/en\/wp-json\/wp\/v2\/types\/fw-portfolio"}],"version-history":[{"count":73,"href":"https:\/\/melvyn-perard.me\/en\/wp-json\/wp\/v2\/fw-portfolio\/90\/revisions"}],"predecessor-version":[{"id":1090,"href":"https:\/\/melvyn-perard.me\/en\/wp-json\/wp\/v2\/fw-portfolio\/90\/revisions\/1090"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/melvyn-perard.me\/en\/wp-json\/wp\/v2\/media\/869"}],"wp:attachment":[{"href":"https:\/\/melvyn-perard.me\/en\/wp-json\/wp\/v2\/media?parent=90"}],"wp:term":[{"taxonomy":"fw-portfolio-category","embeddable":true,"href":"https:\/\/melvyn-perard.me\/en\/wp-json\/wp\/v2\/fw-portfolio-category?post=90"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}