{"id":89,"date":"2023-01-31T13:28:04","date_gmt":"2023-01-31T12:28:04","guid":{"rendered":"https:\/\/fablab.loritz.fr\/?page_id=89"},"modified":"2025-09-02T21:12:13","modified_gmt":"2025-09-02T19:12:13","slug":"les-formats-de-fichiers","status":"publish","type":"page","link":"https:\/\/fablab.loritz.fr\/index.php\/les-formats-de-fichiers\/","title":{"rendered":"Les formats de fichiers"},"content":{"rendered":"\n<p class=\"has-medium-font-size\">Pour utiliser les ressources du FabLab, il est important d&rsquo;utiliser des fichiers adapt\u00e9s.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">\ud83d\udc49Si vous ne savez pas comment exporter votre travail, nous pouvons peut-\u00eatre vous aider, en fonction de votre logiciel.<\/p>\n\n\n\n<div class=\"wp-block-group has-ast-global-color-5-background-color has-background has-medium-font-size is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading has-text-align-left\">Format d&rsquo;\u00e9change universel pour les objets 3D<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>.step<\/li>\n<\/ul>\n\n\n\n<p>Le format STEP pour <em>STandard for the Exchange of Product<\/em> est un format devenu un standard dans l&rsquo;industrie pour \u00e9changer des fichiers d&rsquo;objets 3D sans d\u00e9gradation et compatible entre de tr\u00e8s nombreux ligiciels diff\u00e9rents.<\/p>\n\n\n\n<p>C&rsquo;est le format \u00e0 privil\u00e9gier en cas de doute car \u00e0 partir d&rsquo;un fichier STEP on peut obtenir un mod\u00e8le 3D .stl ou 2D en .dxf par exemple.<\/p>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group has-ast-global-color-5-background-color has-background has-medium-font-size is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading has-text-align-left\">Impression 3D<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>.3mf<\/li>\n\n\n\n<li>.stl<\/li>\n\n\n\n<li>.obj<\/li>\n<\/ul>\n\n\n\n<p>Possible :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>.step<\/li>\n<\/ul>\n\n\n\n<p>Le format STL est le plus couramment utilis\u00e9 pour l&rsquo;impression 3D, il n&rsquo;est cependant pas le plus pertinent aujourd&rsquo;hui. Cr\u00e9er en 1987 (h\u00e9 oui) le format STL n&rsquo;a pas du tout \u00e9t\u00e9 pens\u00e9 pour la fabrication d&rsquo;objets solides ou m\u00eame pour des objets complexes. Si bien que le format autorise les volumes ouvert, n&rsquo;en faisant plus des solides. Les \u00e9chelles ne sont pas toujours respect\u00e9 car le format n&rsquo;impose pas d&rsquo;unit\u00e9 de mesure (mm, cm, pouces, etc&#8230;) bien qu&rsquo;il soit de convention d&rsquo;utiliser le millim\u00e8tre. Un fichier STL est \u00ab\u00a0monobloc\u00a0\u00bb ce qui rend difficile son utilisation si plusieurs objets sont contenus dans un m\u00eame fichier STL car ils seront consid\u00e9r\u00e9 comme un seule objet.<\/p>\n\n\n\n<p><br>Un format bien plus r\u00e9cent corrige tous cela: le 3MF qui a sp\u00e9cifiquement \u00e9t\u00e9 pens\u00e9 pour l&rsquo;impression 3D. Les unit\u00e9s de mesures sont bien mieux g\u00e9r\u00e9es, \u00e9liminant ainsi les probl\u00e8mes d&rsquo;\u00e9chelles (cm, mm, pouces, etc&#8230;).<\/p>\n\n\n\n<p>Info utile : Un seule fichier 3MF peut contenir plusieurs objets 3D diff\u00e9rents.<\/p>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group has-ast-global-color-5-background-color has-background has-medium-font-size is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading has-text-align-left\">D\u00e9coupe Laser<\/h2>\n\n\n\n<p>\u00e0 privil\u00e9gier :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>.dxf<\/li>\n<\/ul>\n\n\n\n<p>Possible :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>.svg<\/li>\n<\/ul>\n\n\n\n<p>Les \u00e9chelles ne sont pas toujours respect\u00e9 car ces formats n\u2019imposent pas d\u2019unit\u00e9 de mesure (mm, cm, pouces, points, etc\u2026) bien qu&rsquo;il soit de convention d&rsquo;utiliser le millim\u00e8tre.<\/p>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group has-ast-global-color-5-background-color has-background has-medium-font-size is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading has-text-align-left\">Gravure d&rsquo;image au Laser<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>.png<\/li>\n\n\n\n<li>.jpeg<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group has-ast-global-color-5-background-color has-background has-medium-font-size is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">Usinage CNC<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>.step<\/li>\n\n\n\n<li>.dxf<\/li>\n\n\n\n<li>.svg<\/li>\n<\/ul>\n\n\n\n<p>Les formats .dxf et .svg sont des formats 2D*, il faut donc penser \u00e0 indiquer (oralement, via un petit fichier texte ou via un sch\u00e9ma) les \u00e9ventuelles profondeurs de fraisage\/usinage \u00e0 adopter.<\/p>\n\n\n\n<p>De plus, les \u00e9chelles ne sont pas toujours respect\u00e9 car ces formats n\u2019imposent pas d\u2019unit\u00e9 de mesure (mm, cm, pouces, points, etc\u2026) bien qu&rsquo;il soit de convention d&rsquo;utiliser le millim\u00e8tre.<\/p>\n\n\n\n<p>* Le format DXF supporte des traits dans un espace 3D, mais la plupart du temps cet aspect du format n&rsquo;est pas utilis\u00e9 ou pas support\u00e9, ce qui peut poser des probl\u00e8mes.<\/p>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group has-ast-global-color-5-background-color has-background has-medium-font-size is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">Impression Papier<\/h2>\n\n\n\n<p>\u00e0 privil\u00e9gier :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>pdf<\/li>\n<\/ul>\n\n\n\n<p>Possible :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>.png<\/li>\n\n\n\n<li>.jpeg<\/li>\n<\/ul>\n\n\n\n<p>Les fichiers type Word (.docx , .odt , etc&#8230;) ne sont pas du tout recommand\u00e9 car mise en page et disposition sont souvent alt\u00e9r\u00e9 par des diff\u00e9rences de versions logiciels ou l&rsquo;absence de polices de caract\u00e8res.<\/p>\n\n\n\n<p>Les fichiers .pdf sont \u00e9galement \u00e0 privil\u00e9gier pour la conservation de l&rsquo;\u00e9chelle \/ taille de page.<br>En effet, un fichier image (.png ou .jpeg) a une taille d\u00e9finit en pixels alors que le PDF contiens les dimensions r\u00e9elles des formes, textes, dessins, pages, etc&#8230;<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Pour utiliser les ressources du FabLab, il est important d&rsquo;utiliser des fichiers adapt\u00e9s. \ud83d\udc49Si vous ne savez pas comment exporter [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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