{"id":7882,"date":"2019-04-01T13:20:32","date_gmt":"2019-04-01T12:20:32","guid":{"rendered":"http:\/\/www.astroantony.com\/blog\/?p=7882"},"modified":"2019-04-01T13:20:32","modified_gmt":"2019-04-01T12:20:32","slug":"atelier-dobson-5eme-journee","status":"publish","type":"post","link":"https:\/\/www.astroantony.com\/blog\/?p=7882","title":{"rendered":"Atelier Dobson (5eme journ\u00e9e)"},"content":{"rendered":"<p>Le samedi 30 mars, se tenait \u00e0 la Maison verte, la cinqui\u00e8me\u00a0 journ\u00e9e de l\u2019Atelier Dobson (1er groupe). Apr\u00e8s la pr\u00e9paration des petites pi\u00e8ces m\u00e9talliques destin\u00e9es aux futures cages des miroirs secondaires, cette journ\u00e9e \u00e9tait d\u00e9di\u00e9e \u00e0 la prise de mesures, au trac\u00e9 et\u00a0 \u00e0 la d\u00e9coupe de triangles de maintien des miroirs primaires (250 et 300 mm).<\/p>\n<p>Pour ce faire, la prise de cotes sur les Dobson existants s&rsquo;impose.<br \/>\nGilles d\u00e9monte ainsi le miroir primaire du setup du Club.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7884\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/1-D\u00e9montage-miroir-Dobson-du-clun.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/1-D\u00e9montage-miroir-Dobson-du-clun.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/1-D\u00e9montage-miroir-Dobson-du-clun-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/1-D\u00e9montage-miroir-Dobson-du-clun-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/1-D\u00e9montage-miroir-Dobson-du-clun-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/1-D\u00e9montage-miroir-Dobson-du-clun-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nPuis celui du Dobson d&rsquo;Antoine (300 mm).<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7886\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/2-D\u00e9montage-miroir-300.jpg\" alt=\"\" width=\"1692\" height=\"1476\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/2-D\u00e9montage-miroir-300.jpg 1692w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/2-D\u00e9montage-miroir-300-300x262.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/2-D\u00e9montage-miroir-300-768x670.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/2-D\u00e9montage-miroir-300-1024x893.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/2-D\u00e9montage-miroir-300-624x544.jpg 624w\" sizes=\"(max-width: 1692px) 100vw, 1692px\" \/><br \/>\nExtraction du miroir de 300mm<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7891\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/6-Retrait-du-miroir-du-300.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/6-Retrait-du-miroir-du-300.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/6-Retrait-du-miroir-du-300-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/6-Retrait-du-miroir-du-300-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/6-Retrait-du-miroir-du-300-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/6-Retrait-du-miroir-du-300-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nAcc\u00e8s au syst\u00e8me de maintien des miroirs compos\u00e9 notamment de pi\u00e8ces triangulaires tenues par 18 points (ici, l&#8217;embase du Dobson de Johann).<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7887\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/3-pour-prises-de-cote-des-triangle-de-maintien-250.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/3-pour-prises-de-cote-des-triangle-de-maintien-250.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/3-pour-prises-de-cote-des-triangle-de-maintien-250-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/3-pour-prises-de-cote-des-triangle-de-maintien-250-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/3-pour-prises-de-cote-des-triangle-de-maintien-250-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/3-pour-prises-de-cote-des-triangle-de-maintien-250-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nGilles explique les manipulations \u00e0 effectuer.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7888\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/4-conseils-de-Gilles.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/4-conseils-de-Gilles.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/4-conseils-de-Gilles-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/4-conseils-de-Gilles-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/4-conseils-de-Gilles-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/4-conseils-de-Gilles-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nLes mesures \u00e0 relever sont essentielles pour optimiser les futurs assemblages.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7889\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/5-Cotes-pr\u00e9cises-pour-assemblage-cage-secondaire-.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/5-Cotes-pr\u00e9cises-pour-assemblage-cage-secondaire-.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/5-Cotes-pr\u00e9cises-pour-assemblage-cage-secondaire--300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/5-Cotes-pr\u00e9cises-pour-assemblage-cage-secondaire--768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/5-Cotes-pr\u00e9cises-pour-assemblage-cage-secondaire--1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/5-Cotes-pr\u00e9cises-pour-assemblage-cage-secondaire--624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nVue du dessous avec les barres de maintien.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7893\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/8-Vue-du-dessouos.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/8-Vue-du-dessouos.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/8-Vue-du-dessouos-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/8-Vue-du-dessouos-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/8-Vue-du-dessouos-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/8-Vue-du-dessouos-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nGilles fournit les conseils pour la prises des diff\u00e9rentes cotes sur les triangles,<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7894\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/9-Pr\u00e9paration-\u00e0-la-prise-de-cote.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/9-Pr\u00e9paration-\u00e0-la-prise-de-cote.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/9-Pr\u00e9paration-\u00e0-la-prise-de-cote-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/9-Pr\u00e9paration-\u00e0-la-prise-de-cote-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/9-Pr\u00e9paration-\u00e0-la-prise-de-cote-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/9-Pr\u00e9paration-\u00e0-la-prise-de-cote-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nAfin de pr\u00e9parer les d\u00e9coupes sur une plaque d\u2019aluminium&#8230; d&rsquo;une \u00e9paisseur de 5 mm\u00a0 !!<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7895\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/10-pour-d\u00e9coupe-dans-plaque-alu-5mm.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/10-pour-d\u00e9coupe-dans-plaque-alu-5mm.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/10-pour-d\u00e9coupe-dans-plaque-alu-5mm-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/10-pour-d\u00e9coupe-dans-plaque-alu-5mm-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/10-pour-d\u00e9coupe-dans-plaque-alu-5mm-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/10-pour-d\u00e9coupe-dans-plaque-alu-5mm-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nJean-Claude et Marc rangent le Dobson du Club,<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7897\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/11-On-range-le-dobson-du-club.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/11-On-range-le-dobson-du-club.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/11-On-range-le-dobson-du-club-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/11-On-range-le-dobson-du-club-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/11-On-range-le-dobson-du-club-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/11-On-range-le-dobson-du-club-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nTandis que Gilles pr\u00e9pare les trac\u00e9s des triangles de maintien des 250 et 300 mm.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7898\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/12-Gilles-prepare-les-dessins-de-coupe.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/12-Gilles-prepare-les-dessins-de-coupe.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/12-Gilles-prepare-les-dessins-de-coupe-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/12-Gilles-prepare-les-dessins-de-coupe-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/12-Gilles-prepare-les-dessins-de-coupe-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/12-Gilles-prepare-les-dessins-de-coupe-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nUne petite pause avant de passer aux choses s\u00e9rieuses.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7899\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/13-petite-p\u00e2use-avant-de-commencer.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/13-petite-p\u00e2use-avant-de-commencer.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/13-petite-p\u00e2use-avant-de-commencer-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/13-petite-p\u00e2use-avant-de-commencer-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/13-petite-p\u00e2use-avant-de-commencer-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/13-petite-p\u00e2use-avant-de-commencer-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nPuis Jean-Claude et Antoine commencent les trac\u00e9s, avec dext\u00e9rit\u00e9 et pr\u00e9cision.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7901\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/14-et-c-parti.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/14-et-c-parti.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/14-et-c-parti-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/14-et-c-parti-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/14-et-c-parti-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/14-et-c-parti-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nLa suite se passe \u00e0 l&rsquo;ext\u00e9rieur,<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7902\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/15-la-suite-se-passe-dehors.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/15-la-suite-se-passe-dehors.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/15-la-suite-se-passe-dehors-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/15-la-suite-se-passe-dehors-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/15-la-suite-se-passe-dehors-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/15-la-suite-se-passe-dehors-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nToujours dans une ambiance d\u00e9tendue.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7903\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/16-tjs-dans-une-bonne-ambiance.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/16-tjs-dans-une-bonne-ambiance.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/16-tjs-dans-une-bonne-ambiance-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/16-tjs-dans-une-bonne-ambiance-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/16-tjs-dans-une-bonne-ambiance-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/16-tjs-dans-une-bonne-ambiance-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nLes op\u00e9rations de trac\u00e9 progressent sous l\u2019\u0153il exerc\u00e9 d&rsquo;Antoine.\u00a0 <img loading=\"lazy\" class=\"aligncenter size-full wp-image-7904\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/17-JC-et-antoine-tracent.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/17-JC-et-antoine-tracent.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/17-JC-et-antoine-tracent-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/17-JC-et-antoine-tracent-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/17-JC-et-antoine-tracent-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/17-JC-et-antoine-tracent-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nAvec explications au tableau !<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7905\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/18-avec-explications-au-tableau.jpg\" alt=\"\" width=\"2248\" height=\"4000\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/18-avec-explications-au-tableau.jpg 2248w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/18-avec-explications-au-tableau-169x300.jpg 169w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/18-avec-explications-au-tableau-768x1367.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/18-avec-explications-au-tableau-575x1024.jpg 575w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/18-avec-explications-au-tableau-624x1110.jpg 624w\" sizes=\"(max-width: 2248px) 100vw, 2248px\" \/><br \/>\nPuis c&rsquo;est l&rsquo;heure de la pause d\u00e9jeuner,<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7907\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/19-et-c-lheure-de-la-pause-dejeuner.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/19-et-c-lheure-de-la-pause-dejeuner.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/19-et-c-lheure-de-la-pause-dejeuner-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/19-et-c-lheure-de-la-pause-dejeuner-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/19-et-c-lheure-de-la-pause-dejeuner-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/19-et-c-lheure-de-la-pause-dejeuner-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\n&#8230;sous le Soleil d\u2019Antony.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7908\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/20-sous-le-soleil-dAntony.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/20-sous-le-soleil-dAntony.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/20-sous-le-soleil-dAntony-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/20-sous-le-soleil-dAntony-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/20-sous-le-soleil-dAntony-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/20-sous-le-soleil-dAntony-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nEt c&rsquo;est reparti pour l&rsquo;apr\u00e8s-midi.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7910\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/21-et-c-reparti.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/21-et-c-reparti.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/21-et-c-reparti-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/21-et-c-reparti-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/21-et-c-reparti-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/21-et-c-reparti-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nPuis Franck nous rejoint,<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7911\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/22-les-trac\u00e9s-soivent-\u00eatre-pr\u00e9cis.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/22-les-trac\u00e9s-soivent-\u00eatre-pr\u00e9cis.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/22-les-trac\u00e9s-soivent-\u00eatre-pr\u00e9cis-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/22-les-trac\u00e9s-soivent-\u00eatre-pr\u00e9cis-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/22-les-trac\u00e9s-soivent-\u00eatre-pr\u00e9cis-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/22-les-trac\u00e9s-soivent-\u00eatre-pr\u00e9cis-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nAvant l&rsquo;arriv\u00e9e de Nico!<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7912\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/23-Nico-nous-rend-visite.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/23-Nico-nous-rend-visite.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/23-Nico-nous-rend-visite-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/23-Nico-nous-rend-visite-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/23-Nico-nous-rend-visite-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/23-Nico-nous-rend-visite-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nAntoine s&rsquo;interroge&#8230;<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7913\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/24-Antoine-sinterroge.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/24-Antoine-sinterroge.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/24-Antoine-sinterroge-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/24-Antoine-sinterroge-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/24-Antoine-sinterroge-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/24-Antoine-sinterroge-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nEt Gilles proc\u00e8de aux derni\u00e8res v\u00e9rifications avant la d\u00e9coupe,<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7914\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/25-Gilles-v\u00e9rifie-les-cotes.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/25-Gilles-v\u00e9rifie-les-cotes.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/25-Gilles-v\u00e9rifie-les-cotes-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/25-Gilles-v\u00e9rifie-les-cotes-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/25-Gilles-v\u00e9rifie-les-cotes-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/25-Gilles-v\u00e9rifie-les-cotes-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><\/p>\n<p>Et voila le travail !<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7918\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/30-et-voila-le-travail.jpg\" alt=\"\" width=\"2248\" height=\"4000\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/30-et-voila-le-travail.jpg 2248w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/30-et-voila-le-travail-169x300.jpg 169w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/30-et-voila-le-travail-768x1367.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/30-et-voila-le-travail-575x1024.jpg 575w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/30-et-voila-le-travail-624x1110.jpg 624w\" sizes=\"(max-width: 2248px) 100vw, 2248px\" \/><br \/>\nGuillaume vient nous rendre une visite sympathique.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7930\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/28-guillaume-nous-rend-visite.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/28-guillaume-nous-rend-visite.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/28-guillaume-nous-rend-visite-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/28-guillaume-nous-rend-visite-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/28-guillaume-nous-rend-visite-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/28-guillaume-nous-rend-visite-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nFranck se porte ensuite volontaire pour la d\u00e9coupe de cette plaque \u00e9paisse.<\/p>\n<p><img loading=\"lazy\" class=\"aligncenter size-full wp-image-7915\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/32-Franck-coupe.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/32-Franck-coupe.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/32-Franck-coupe-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/32-Franck-coupe-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/32-Franck-coupe-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/32-Franck-coupe-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nGilles pr\u00eate \u00e9galement son concours.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7919\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/33-Gilles-coupe.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/33-Gilles-coupe.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/33-Gilles-coupe-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/33-Gilles-coupe-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/33-Gilles-coupe-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/33-Gilles-coupe-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nL&rsquo;op\u00e9ration s&rsquo;av\u00e8re d\u00e9licate.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7920\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/34-pas-facile.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/34-pas-facile.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/34-pas-facile-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/34-pas-facile-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/34-pas-facile-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/34-pas-facile-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nPuis c&rsquo;est la phase suivante de d\u00e9coupe des triangles \u00e0 la scie \u00e0 m\u00e9taux&#8230;<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7921\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/35-pr\u00e9paratif-de-coupe-des-triangles.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/35-pr\u00e9paratif-de-coupe-des-triangles.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/35-pr\u00e9paratif-de-coupe-des-triangles-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/35-pr\u00e9paratif-de-coupe-des-triangles-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/35-pr\u00e9paratif-de-coupe-des-triangles-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/35-pr\u00e9paratif-de-coupe-des-triangles-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nPr\u00e9cision et d\u00e9termination de Franck&#8230;<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7922\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/36-D\u00e9coupe-triangle-Franck.jpg\" alt=\"\" width=\"2248\" height=\"4000\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/36-D\u00e9coupe-triangle-Franck.jpg 2248w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/36-D\u00e9coupe-triangle-Franck-169x300.jpg 169w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/36-D\u00e9coupe-triangle-Franck-768x1367.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/36-D\u00e9coupe-triangle-Franck-575x1024.jpg 575w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/36-D\u00e9coupe-triangle-Franck-624x1110.jpg 624w\" sizes=\"(max-width: 2248px) 100vw, 2248px\" \/><br \/>\nEt voila !!<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7923\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/37-et-voila.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/37-et-voila.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/37-et-voila-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/37-et-voila-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/37-et-voila-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/37-et-voila-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nGilles nous pr\u00e9sente ensuite le d\u00e9tail informatis\u00e9 des points de pression optimis\u00e9s exerc\u00e9s sur le miroir primaire (\u00e0 gauche) par les triangles de maintien (repr\u00e9sentation graphique fl\u00e9ch\u00e9e des 18 points de fixations).<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7924\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/38-modelisation-des-points-de-pression-par-gilles.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/38-modelisation-des-points-de-pression-par-gilles.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/38-modelisation-des-points-de-pression-par-gilles-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/38-modelisation-des-points-de-pression-par-gilles-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/38-modelisation-des-points-de-pression-par-gilles-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/38-modelisation-des-points-de-pression-par-gilles-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nLes premiers triangles produits \u00e0 partir des bandes d&rsquo;aluminium\u00a0 pr\u00e9par\u00e9es.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7925\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/39-et-ca-decoupe.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/39-et-ca-decoupe.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/39-et-ca-decoupe-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/39-et-ca-decoupe-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/39-et-ca-decoupe-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/39-et-ca-decoupe-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><br \/>\nPuis c&rsquo;est la fin de la journ\u00e9e, avec le rangement du mat\u00e9riel.<br \/>\n<img loading=\"lazy\" class=\"aligncenter size-full wp-image-7926\" src=\"http:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/40-avant-le-rangement-en-fin-de-journ\u00e9e.jpg\" alt=\"\" width=\"4000\" height=\"2248\" srcset=\"https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/40-avant-le-rangement-en-fin-de-journ\u00e9e.jpg 4000w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/40-avant-le-rangement-en-fin-de-journ\u00e9e-300x169.jpg 300w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/40-avant-le-rangement-en-fin-de-journ\u00e9e-768x432.jpg 768w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/40-avant-le-rangement-en-fin-de-journ\u00e9e-1024x575.jpg 1024w, https:\/\/www.astroantony.com\/blog\/wp-content\/uploads\/2019\/04\/40-avant-le-rangement-en-fin-de-journ\u00e9e-624x351.jpg 624w\" sizes=\"(max-width: 4000px) 100vw, 4000px\" \/><\/p>\n<p>A bient\u00f4t pour une nouvelle journ\u00e9e de l&rsquo;atelier Dobson TVA!<br \/>\n@ Michel<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le samedi 30 mars, se tenait \u00e0 la Maison verte, la cinqui\u00e8me\u00a0 journ\u00e9e de l\u2019Atelier Dobson (1er groupe). Apr\u00e8s la pr\u00e9paration des petites pi\u00e8ces m\u00e9talliques destin\u00e9es aux futures cages des miroirs secondaires, cette journ\u00e9e \u00e9tait d\u00e9di\u00e9e \u00e0 la prise de mesures, au trac\u00e9 et\u00a0 \u00e0 la d\u00e9coupe de triangles de maintien des miroirs primaires (250 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.astroantony.com\/blog\/?p=7882\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Atelier Dobson (5eme journ\u00e9e) - Blog: La vie du club d&#039;astronomie d&#039;Antony\" \/>\n<meta property=\"og:description\" content=\"Le samedi 30 mars, se tenait \u00e0 la Maison verte, la cinqui\u00e8me\u00a0 journ\u00e9e de l\u2019Atelier Dobson (1er groupe). 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