{"id":68,"date":"2023-12-24T11:45:32","date_gmt":"2023-12-24T10:45:32","guid":{"rendered":"https:\/\/new.saga-de-marcel.com\/?page_id=68"},"modified":"2023-12-25T11:10:33","modified_gmt":"2023-12-25T10:10:33","slug":"tortue-marine-master-de-la-carapace","status":"publish","type":"page","link":"https:\/\/new.saga-de-marcel.com\/?page_id=68","title":{"rendered":"Tortue marine, master de la carapace"},"content":{"rendered":"\n<p>J&rsquo;ai d\u00e9cid\u00e9 de faire le master en polyfoam (genre de polystyr\u00e8ne utilis\u00e9 pour l&rsquo;isolation des plafonds).<\/p>\n\n\n\n<p>L&rsquo;\u00e9paisseur fait 6 cm cela se d\u00e9coupe parfaitement \u00e0 la scie sauteuse ,au cutter et se ponce tr\u00e8s facilement \u00e0 la toile \u00e9meri.<\/p>\n\n\n\n<p>Cela se colle aussi \u00e0 la colle \u00e9poxy, et se mastique\u00a0 tr\u00e8s bien.<\/p>\n\n\n\n<p>Je voulais ensuite faire un moule en stratifi\u00e9, mais apr\u00e8s discussion avec Guy Boniface je vais faire un moule en b\u00e9ton.<\/p>\n\n\n\n<p>Donc, marche \u00e0 suivre,<\/p>\n\n\n\n<p>-Fabrication des masters en polyfoam,<\/p>\n\n\n\n<p>-Fabrication des moules en b\u00e9ton,<\/p>\n\n\n\n<p>-Fabrication de la carapace (dessus et dessous en stratifi\u00e9).<\/p>\n\n\n\n<p>\u00a0Les photos suivantes indiquent le mode op\u00e9ratoire de la fabrication des masters .<\/p>\n\n\n\n<p><strong>D\u00e9coupe du master<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/decoupe%20du%20master.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Trac\u00e9 du contour du master<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/trace%20du%20contour%20du%20master.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Les quatre morceaux coll\u00e9s deux \u00e0 deux<\/strong> <strong>\u00e0 la colle \u00e9poxy.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/les%20deux%20morceaux.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Ebauche<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/ebauche.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Facilit\u00e9 du d\u00e9coupage<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/la%20facilite%20du%20deccoupage.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Aper\u00e7u apr\u00e8s pon\u00e7age<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/apercu%20apres%20poncage.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>ceci n&rsquo;est pas la forme d\u00e9finitive mais presque, on peut remarquer qu&rsquo;il n&rsquo;y a pas beaucoup de d\u00e9fauts.<\/p>\n\n\n\n<p><strong>Master carapace de profil<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/master%20carapace%20de%20profil.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Les masters<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/les%20masters.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Les masters l&rsquo;un sur l&rsquo;autre<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/les%20masters%20l%20un%20sur%20l%20autre.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Dans le bac<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/dans%20le%20bac.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Les deux bacs<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/les%20deux%20bacs.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Avant d&rsquo;attaquer le moulage, un essai en plus petit<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/essai%20avec%20petit%20modele.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>La cire de demoulage<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/la%20cire%20de%20demoulage.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Passage de la cire<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/passage%20de%20la%20cire.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Le ciment utilis\u00e9<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/le%20ciment%20utilise.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Le moulage<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/le%20moulage%20au%20ciment.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Empreinte apr\u00e8s d\u00e9moulage<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/empreinte%20tortue.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>C&rsquo;est pas trop mal, quelques micro bulles qui indiquent que je n&rsquo;ai pas assez vibr\u00e9 le mortier, les rainures de la carapace sont bien ressorties, le d\u00e9moulage n&rsquo;a \u00e9t\u00e9 possible que en d\u00e9truisant le master, (\u00e0 cause des rainures du c\u00f4t\u00e9).<\/p>\n\n\n\n<p>Conclusion,\u00a0il ne faudra pas que je rate la coul\u00e9e.<\/p>\n\n\n\n<p>Aujourd&rsquo;hui j&rsquo;ai fabriqu\u00e9 la carapace en stratifi\u00e9.<\/p>\n\n\n\n<p>5 couches de tissus,<\/p>\n\n\n\n<p>1 \u00e8re couche roving tress\u00e9<\/p>\n\n\n\n<p>2 \u00e8me, 3 \u00e8me, 4 \u00e8me, mat 200<\/p>\n\n\n\n<p>5 \u00e8me roving tress\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/petite%20carapace.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Nota:\u00a0J&rsquo;ai fait par moiti\u00e9, en laissant recouvrir les deux parties au centre et en faisant des entailles dans le tissus sauf pour la derni\u00e8re couche qui est en un seul morceau.<\/p>\n\n\n\n<p>Le roving \u00e0 trame oblique \u00e9pouse tr\u00e8s bien les formes concaves.<\/p>\n\n\n\n<p>Il\u00a0 faut attendre maintenant la polym\u00e9risation pour d\u00e9mouler et voir le r\u00e9sultat\u00a0( Je suis impatient ).<\/p>\n\n\n\n<p>Le d\u00e9moulage s&rsquo;est bien pass\u00e9, quelques petits d\u00e9fauts vite mastiqu\u00e9s, un petit coup de bombe, et voila!!!!<\/p>\n\n\n\n<p><strong>La carapace termin\u00e9e<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/carapace.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Il ne reste plus qu&rsquo;\u00e0 passer au coulage et moulage\u00a0 des carapaces vraie grandeur.\u00a0\u00a0\u00a0\u00a0<\/p>\n\n\n\n<p><strong>Passage d&rsquo;une couche de ciment blanc liquide (sans sable) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/Passage%20d'une%20couche%20de%20ciment%20pur.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Moule de la carapace rempli\u00a0<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/Moule%20carapace%20rempli.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Destruction du master pour d\u00e9moulage<\/strong><\/p>\n\n\n\n<p><strong>D\u00e9moulage carapace termin\u00e9<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/Demoulage%20carapace%20termine.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Avant d\u00e9moulage du plastron<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/Avant%20demoulage%20du%20plastron.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Extraction du master du plastron sans d\u00e9t\u00e9rioration<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/Extraction%20du%20master%20sans%20destruction.jpg%20.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>Le moule du plastron<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/saga-de-marcel.com\/images\/Le%20moule%20du%20plastron.jpg\" alt=\"\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>J&rsquo;ai d\u00e9cid\u00e9 de faire le master en polyfoam (genre de polystyr\u00e8ne utilis\u00e9 pour l&rsquo;isolation des plafonds). L&rsquo;\u00e9paisseur fait 6 cm cela se d\u00e9coupe parfaitement \u00e0 la scie sauteuse ,au cutter et se ponce tr\u00e8s facilement &hellip; <\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/new.saga-de-marcel.com\/index.php?rest_route=\/wp\/v2\/pages\/68"}],"collection":[{"href":"https:\/\/new.saga-de-marcel.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/new.saga-de-marcel.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/new.saga-de-marcel.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/new.saga-de-marcel.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=68"}],"version-history":[{"count":2,"href":"https:\/\/new.saga-de-marcel.com\/index.php?rest_route=\/wp\/v2\/pages\/68\/revisions"}],"predecessor-version":[{"id":169,"href":"https:\/\/new.saga-de-marcel.com\/index.php?rest_route=\/wp\/v2\/pages\/68\/revisions\/169"}],"wp:attachment":[{"href":"https:\/\/new.saga-de-marcel.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=68"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}