{"id":19991,"date":"2019-07-16T00:00:00","date_gmt":"2019-07-16T00:00:00","guid":{"rendered":"https:\/\/www.mailgun.com\/blog\/machine-livraison-snacks-partie-1-mecanique\/"},"modified":"2026-09-14T21:17:39","modified_gmt":"2026-09-14T21:17:39","slug":"machine-livraison-snacks-partie-1-mecanique","status":"publish","type":"blog","link":"https:\/\/www.mailgun.com\/fr\/blog\/dev-life\/machine-livraison-snacks-partie-1-mecanique\/","title":{"rendered":"Machine de livraison de snacks\u00a0: partie 1, la m\u00e9canique"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Bricoler du mat\u00e9riel est toujours amusant, et\u00a0<a href=\"\/?blog_category=mission-to-mars-pycon-2014\" target=\"_tabs\" rel=\"noopener noreferrer\">cela faisait un moment<\/a>\u00a0que nous n&rsquo;avions rien cr\u00e9\u00e9\u00a0! Dans cette courte s\u00e9rie d&rsquo;articles de blog, nous allons fabriquer un distributeur de snacks contr\u00f4l\u00e9 par email en utilisant un distributeur d&rsquo;aliments secs, un Raspberry Pi, une paire de moteurs pas \u00e0 pas et un peu d&rsquo;impression 3D.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cet article se concentrera d&rsquo;abord sur la m\u00e9canique, puis nous passerons \u00e0 l&rsquo;\u00e9lectronique dans la deuxi\u00e8me partie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pr\u00eats ? C&rsquo;est parti\u00a0!<\/p>\n\n\n\r\n    <nav data-content-type=\"longform\" class=\"toc-block longform-spacings px-5 py-6 px-md-6 px-lg-7 py-md-7 bg-light fs-sm rounded-lg\" aria-labelledby=\"toc-title-8012\"><p class=\"h5 m-0\" id=\"toc-title-8012\">Table des mati\u00e8res<\/p><div class=\"d-flex mt-3\"><div class=\"w-auto fw-bold text-accent d-flex me-2\">01<\/div><div class=\"d-flex flex-column\"><a class=\"fw-bold scrollme link-body-color text-accent\" href=\"#preparation-des-composants\">Pr\u00e9paration des composants<\/a><\/div><\/div><div class=\"d-flex mt-3\"><div class=\"w-auto fw-bold text-accent d-flex me-2\">02<\/div><div class=\"d-flex flex-column\"><a class=\"fw-bold scrollme link-body-color text-accent\" href=\"#conception-du-groupe-motopropulseur\">Conception du groupe motopropulseur<\/a><\/div><\/div><div class=\"d-flex mt-3\"><div class=\"w-auto fw-bold text-accent d-flex me-2\">03<\/div><div class=\"d-flex flex-column\"><a class=\"fw-bold scrollme link-body-color text-accent\" href=\"#amelioration-avec-un-outil-dremel\">Am\u00e9lioration avec un outil Dremel<\/a><\/div><\/div><div class=\"d-flex mt-3\"><div class=\"w-auto fw-bold text-accent d-flex me-2\">04<\/div><div class=\"d-flex flex-column\"><a class=\"fw-bold scrollme link-body-color text-accent\" href=\"#assemblage-final\">Assemblage final<\/a><\/div><\/div><div class=\"d-flex mt-3\"><div class=\"w-auto fw-bold text-accent d-flex me-2\">05<\/div><div class=\"d-flex flex-column\"><a class=\"fw-bold scrollme link-body-color text-accent\" href=\"#plutot-interessant-nest-ce-pas\">Plut\u00f4t int\u00e9ressant, n&rsquo;est-ce pas\u00a0?<\/a><\/div><\/div><\/nav>\n\n\n<h2 class=\"wp-block-heading\">Pr\u00e9paration des composants<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nous avons commenc\u00e9 avec un distributeur de snacks que vous pouvez trouver dans n&rsquo;importe quel grand magasin ou en ligne. Si vous vous demandez o\u00f9 nous avons trouv\u00e9 le n\u00f4tre, nous l&rsquo;avons achet\u00e9 sur\u00a0<a href=\"https:\/\/www.amazon.com\/gp\/product\/B00013K8OO\/\" target=\"_tabs\" rel=\"noopener noreferrer\">Amazon<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-3997\" width=\"700\" height=\"1244\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/dispenser_init-700x1244-1.png\" alt=\"Picture of a snack dispenser\" srcset=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/dispenser_init-700x1244-1.png 700w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/dispenser_init-700x1244-1-169x300.png 169w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/dispenser_init-700x1244-1-576x1024.png 576w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C&rsquo;est une machine assez simple\u00a0: les friandises se chargent par le haut et vous pouvez tourner la poign\u00e9e pour les distribuer dans un bol en dessous. Mais que se passerait-il si nous fixions des moteurs au m\u00e9canisme de distribution\u00a0? C&rsquo;est l\u00e0 qu&rsquo;interviennent les moteurs, ou plut\u00f4t deux moteurs pas \u00e0 pas NEMA-17 de 12\u00a0V. Nous avons utilis\u00e9 une paire de\u00a0<a href=\"https:\/\/www.adafruit.com\/product\/324\" target=\"_tabs\" rel=\"noopener noreferrer\">ces mod\u00e8les<\/a>, mais nous avons appris \u00e0 nos d\u00e9pens que la machine aurait bien besoin d&rsquo;un peu plus de couple que 0,2\u00a0Nm.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-4009\" width=\"700\" height=\"525\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/324-03-700x525-1.jpg\" alt=\"Picture of two motors called 12V NEMA-17 steppers\" srcset=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/324-03-700x525-1.jpg 700w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/324-03-700x525-1-300x225.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ces petits moteurs \u00e9taient de la taille id\u00e9ale (longueur de 34\u00a0mm) et s&rsquo;ins\u00e9raient parfaitement dans les distributeurs.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-4011\" width=\"1024\" height=\"576\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/dispenser_profile.png\" alt=\"A picture showing the motors attached to the snack dispenser\" srcset=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/dispenser_profile.png 1024w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/dispenser_profile-300x169.png 300w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/dispenser_profile-768x432.png 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Conception du groupe motopropulseur<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Dans notre machine, le bouton de distribution avait un axe \u00e0 m\u00e9plat qui s&rsquo;ins\u00e8re dans la pi\u00e8ce munie de rabats en caoutchouc. Le moteur \u00e9tait \u00e9galement muni d&rsquo;un axe \u00e0 m\u00e9plat, mais le probl\u00e8me \u00e9tait que le diam\u00e8tre de l&rsquo;axe du moteur \u00e9tait beaucoup plus petit.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-4024\" width=\"700\" height=\"661\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/csm_D-Cut_a38a54ae43-700x661-1.jpg\" alt=\"Picture of a motor shaft\" srcset=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/csm_D-Cut_a38a54ae43-700x661-1.jpg 700w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/csm_D-Cut_a38a54ae43-700x661-1-300x283.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Nous avions besoin d&rsquo;un adaptateur ou, dans le jargon de l&rsquo;ing\u00e9nierie m\u00e9canique, d&rsquo;une\u00a0<a href=\"https:\/\/en.wikipedia.org\/wiki\/Key_(engineering)\" target=\"_tabs\" rel=\"noopener noreferrer\">cl\u00e9<\/a>, pour que cela fonctionne. Naturellement, notre premi\u00e8re id\u00e9e pour r\u00e9soudre ce probl\u00e8me a \u00e9t\u00e9 de nous dire\u00a0: \u00ab\u00a0Et si nous l&rsquo;imprimions en 3D\u00a0!\u00a0\u00bb Tout d&rsquo;abord, parce que les imprimantes 3D sont incroyables, et ensuite, parce que nous avions mesur\u00e9 les pi\u00e8ces et commenc\u00e9 \u00e0 concevoir cette petite pi\u00e8ce pour l&rsquo;impression 3D presque imm\u00e9diatement.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-4025\" width=\"352\" height=\"148\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/knob_axle_vs_stepper_axle.png\" alt=\"Blueprints to 3D print an adapter\" srcset=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/knob_axle_vs_stepper_axle.png 352w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/knob_axle_vs_stepper_axle-300x126.png 300w\" sizes=\"(max-width: 352px) 100vw, 352px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Il nous a fallu sept it\u00e9rations pour arriver \u00e0 une conception correcte.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-4026\" width=\"700\" height=\"1041\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/key-v7-700x1041-1.png\" alt=\"Picture of final schematic for the adapter\" srcset=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/key-v7-700x1041-1.png 700w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/key-v7-700x1041-1-202x300.png 202w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/key-v7-700x1041-1-689x1024.png 689w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Sans blague, le versionnage s\u00e9mantique s&rsquo;applique tr\u00e8s bien ici\u00a0!<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-4034\" width=\"700\" height=\"1244\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/adapter_irl-700x1244-1.png\" alt=\"Picture of the 3D printed adapter\" srcset=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/adapter_irl-700x1244-1.png 700w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/adapter_irl-700x1244-1-169x300.png 169w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/adapter_irl-700x1244-1-576x1024.png 576w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Une fois la clavette imprim\u00e9e, elle \u00e9tait pr\u00eate \u00e0 \u00eatre fix\u00e9e.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-4039\" width=\"700\" height=\"1244\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/it_actually_fit-700x1244-1.png\" alt=\"Picture showing the adapter fits the motor shaft\" srcset=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/it_actually_fit-700x1244-1.png 700w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/it_actually_fit-700x1244-1-169x300.png 169w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/it_actually_fit-700x1244-1-576x1024.png 576w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Succ\u00e8s\u00a0!!! Juste pour le plaisir, voici une vid\u00e9o de l&rsquo;imprimante en pleine action.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Am\u00e9lioration avec un outil Dremel<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">En nous basant sur le placement de l&rsquo;axe du rabat par rapport au bras de montage du ch\u00e2ssis, nous avons pens\u00e9 que nous pouvions percer une partie du bras de montage pour le moteur pas \u00e0 pas. Nous avons pris la pi\u00e8ce qui maintient le r\u00e9cipient et y avons apport\u00e9 quelques ajustements, ce qui \u00e9tait la partie la plus passionnante.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-4042\" width=\"910\" height=\"308\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/dremel_fever.png\" alt=\"Slack conversation discussing Dremel Fever\" srcset=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/dremel_fever.png 910w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/dremel_fever-300x102.png 300w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/dremel_fever-768x260.png 768w\" sizes=\"(max-width: 910px) 100vw, 910px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Avec une t\u00eate de coupe plate, nous avons retir\u00e9 le plastique qui nous emp\u00eachait d&rsquo;ins\u00e9rer les moteurs pas \u00e0 pas.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-4044\" width=\"749\" height=\"813\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/image-1.png\" alt=\"Picture of two men putting the project together\" srcset=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/image-1.png 749w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/image-1-276x300.png 276w\" sizes=\"(max-width: 749px) 100vw, 749px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Assemblage final<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Apr\u00e8s quelques minutes pass\u00e9es \u00e0 canaliser prudemment la Dremel Fever\u2122, les servomoteurs s&rsquo;ins\u00e9raient parfaitement. Pour les fixer, nous devions trouver un \u00e9l\u00e9ment qui s&rsquo;ins\u00e9rerait entre les servomoteurs et le ch\u00e2ssis. En regardant autour de nous, nous avons trouv\u00e9 une belle gomme qui ferait l&rsquo;affaire. Qui a dit que nous ne pouvions pas profiter du mat\u00e9riel de prototypage inutilis\u00e9 pour le d\u00e9ployer en production\u00a0?<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-4045\" width=\"498\" height=\"1024\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/20190521_164149-rotated.jpg\" alt=\"A picture of an eraser with lines drawn on it\" srcset=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/20190521_164149-rotated.jpg 498w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/20190521_164149-146x300.jpg 146w\" sizes=\"(max-width: 498px) 100vw, 498px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Nous l&rsquo;avons ins\u00e9r\u00e9e des deux c\u00f4t\u00e9s du moteur et elle s&rsquo;est parfaitement adapt\u00e9e.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-4046\" width=\"1024\" height=\"705\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/20190521_135913-1.jpg\" alt=\"Picture of eraser on both sides of the motor\" srcset=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/20190521_135913-1.jpg 1024w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/20190521_135913-1-300x207.jpg 300w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/20190521_135913-1-768x529.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">La perfection.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nous avons retourn\u00e9 les rabats pour qu&rsquo;ils fassent face aux servomoteurs \u00e0 l&rsquo;arri\u00e8re du distributeur et les avons fix\u00e9s avec la clavette. La derni\u00e8re chose \u00e0 faire \u00e9tait de couper les rabats pour nous assurer que les servomoteurs pouvaient faire tourner facilement le m\u00e9canisme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Voici le produit final d&rsquo;un point de vue m\u00e9canique.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-4047\" width=\"700\" height=\"946\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/20190521_135820-2-700x946-1.jpg\" alt=\"Picture of the final result of the email controlled snack machine\" srcset=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/20190521_135820-2-700x946-1.jpg 700w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/20190521_135820-2-700x946-1-222x300.jpg 222w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Plut\u00f4t int\u00e9ressant, n&rsquo;est-ce pas\u00a0?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Une fois toutes les pi\u00e8ces m\u00e9caniques en place, il a fallu commencer \u00e0 construire le cerveau de notre petite machine. Qu&rsquo;est-ce qui allait devenir le cerveau de notre dur labeur\u00a0? Un Raspberry Pi, bien s\u00fbr. Comme nous le savons, presque tout est possible avec un Raspberry Pi, mais vous devrez attendre la semaine prochaine pour d\u00e9couvrir le r\u00e9sultat\u00a0!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bricoler du mat\u00e9riel est toujours amusant, et cela faisait un moment que nous n&rsquo;avions rien cr\u00e9\u00e9\u00a0! Dans cette courte s\u00e9rie d&rsquo;articles de blog, nous allons fabriquer un distributeur de snacks contr\u00f4l\u00e9 par email en utilisant un distributeur d&rsquo;aliments secs, un Raspberry Pi, une paire de moteurs pas \u00e0 pas et un peu d&rsquo;impression 3D.<\/p>\n","protected":false},"author":14,"featured_media":3952,"menu_order":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"blog_category":[19],"class_list":["post-19991","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-dev-life"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Machine de livraison de snacks\u00a0: partie 1, la m\u00e9canique - Transactional Email API Service For Developers | Mailgun<\/title>\n<meta name=\"description\" content=\"Que se passe-t-il lorsqu&#039;on donne un outil Dremel et une envie de snacks \u00e0 deux sp\u00e9cialistes du d\u00e9veloppement\u00a0? 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