{"id":249007,"date":"2024-03-31T22:21:04","date_gmt":"2024-03-31T20:21:04","guid":{"rendered":"https:\/\/fablab-montagny-pres-louhans.fr\/?p=249007"},"modified":"2024-04-01T11:06:25","modified_gmt":"2024-04-01T09:06:25","slug":"maintenance-co2","status":"publish","type":"post","link":"https:\/\/fablab-montagny-pres-louhans.fr\/index.php\/2024\/03\/31\/maintenance-co2\/","title":{"rendered":"Maintenance CO2"},"content":{"rendered":"

[et_pb_section fb_built=\u00a0\u00bb1″ admin_label=\u00a0\u00bbsection\u00a0\u00bb _builder_version=\u00a0\u00bb4.16″ global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row column_structure=\u00a0\u00bb1_2,1_2″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbmaintenance\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]Ce samedi 30\/03, nous sommes en effectifs r\u00e9duits.<\/p>\n

L’occasion pour se lancer dans la maintenance du laser CO2.<\/p>\n

Celui-ci n\u00e9cessite un nombre importants de passages pour r\u00e9aliser des coupes.
\nLes causes peuvent en \u00eatre multiples, \u00e0 commencer par un mat\u00e9riau de mauvaise qualit\u00e9 ou alt\u00e9r\u00e9, un simple encrassement du syst\u00e8me optique ou un tube laser en fin de vie.<\/p>\n

Nous avons pour habitude de ne pas trop solliciter le tube laser en surveillant la limite de chauffe du circuit de refroidissement et en ne d\u00e9passant que tr\u00e8s rarement les 50% de puissance. Nous disposons de pi\u00e8ces de rechange (tube \/ miroirs \/ lentilles), mais la moindre intervention (hors nettoyage) nous conduira \u00e0 devoir r\u00e9gler la course du laser, ce qui peut \u00eatre assez long et minutieux.
\n[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/fablab-montagny-pres-louhans.fr\/wp-content\/uploads\/2024\/03\/IMG_9784-scaled.jpg\u00a0\u00bb title_text=\u00a0\u00bbIMG_9784″ admin_label=\u00a0\u00bbtube fablab\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb transform_scale=\u00a0\u00bb68%|68%\u00a0\u00bb width=\u00a0\u00bb69%\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][et_pb_image src=\u00a0\u00bbhttps:\/\/fablab-montagny-pres-louhans.fr\/wp-content\/uploads\/2024\/03\/IMG_9785-scaled-e1711908192840.jpg\u00a0\u00bb title_text=\u00a0\u00bbIMG_9785″ admin_label=\u00a0\u00bbdemontage optique nettoyage\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_video src=\u00a0\u00bbhttps:\/\/youtube.com\/shorts\/d51-_CLS2rw?feature=share\u00a0\u00bb admin_label=\u00a0\u00bblaser in use\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_video][et_pb_video src=\u00a0\u00bbhttps:\/\/youtube.com\/shorts\/tXzhaUQQGTk?feature=share\u00a0\u00bb admin_label=\u00a0\u00bbpulse\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_video][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbwikipedia\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]Wikipedia<\/a> nous offre un super sch\u00e9ma de principe du tube laser CO2.[\/et_pb_text][et_pb_image src=\u00a0\u00bbhttps:\/\/fablab-montagny-pres-louhans.fr\/wp-content\/uploads\/2024\/03\/660px-Laser_CO2.png\u00a0\u00bb alt=\u00a0\u00bbhttps:\/\/fr.wikipedia.org\/wiki\/Laser_au_dioxyde_de_carbone\u00a0\u00bb title_text=\u00a0\u00bb660px-Laser_CO2″ admin_label=\u00a0\u00bbtube wikipedia\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][et_pb_text admin_label=\u00a0\u00bbadaptations fablab\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]Dans le cas d’un laser CO2 comme celui du fablab, il conviendrait de le modifier l\u00e9g\u00e8rement. (l’entr\u00e9e de gaz est scell\u00e9e et le laser va \u00eatre successivement renvoy\u00e9 par 3 miroirs avant d’\u00eatre concentr\u00e9 par une lentille.)
\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbetape 1 : evaluation\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]Premi\u00e8re \u00e9tape :\u00a0 V\u00e9rifier notre ressenti \u00ab\u00a0le laser coupe moins bien qu’avant\u00a0\u00bb<\/p>\n

C’est bien connu \u00ab\u00a0c’\u00e9tait mieux avant\u00a0\u00bb, mais le laser coupe t’il r\u00e9ellement moins ? Comment le v\u00e9rifier ?
\nNous avions r\u00e9alis\u00e9 une d\u00e9coupe dans un morceau d’acrylique, bien plus pr\u00e9visible et reproductible qu’un morceau de contreplaqu\u00e9. Nous avions not\u00e9 les param\u00e8tres de coupe et le nombre de passages n\u00e9cessaires pour une \u00e9paisseur donn\u00e9e.
\nNous tentons donc de reproduire les m\u00eames op\u00e9rations avec le m\u00eame mat\u00e9riau. C’est sans appel, il faut plus de 2 fois le nombre de passages initiaux. En gros le laser fonctionne \u00e0 1\/3 de sa puissance d’origine. Il est donc n\u00e9cessaire d’intervenir.<\/p>\n

 
\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb2_5,3_5″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb2_5″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbetape 2 : nettoyage\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]Seconde \u00e9tape :\u00a0 Le nettoyage des miroirs et lentilles<\/p>\n

Avec un chiffon non abrasif (ceux pour nettoyer les lunettes sont efficaces) aid\u00e9 si il le faut d’alcool isopropylique, les miroirs et la lentille seront nettoy\u00e9s apr\u00e8s d\u00e9montage si n\u00e9cessaire.[\/et_pb_text][et_pb_text admin_label=\u00a0\u00bbdu mieux\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]Les surfaces sont nettoy\u00e9es, de rares marques sont visibles. Une petite am\u00e9lioration de la d\u00e9coupe est constat\u00e9e.
\n[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb3_5″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/fablab-montagny-pres-louhans.fr\/wp-content\/uploads\/2024\/03\/IMG_9789-scaled-e1711909490486.jpg\u00a0\u00bb title_text=\u00a0\u00bbIMG_9789″ admin_label=\u00a0\u00bbmiroir + outils demontage\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb3_5,2_5″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb3_5″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/fablab-montagny-pres-louhans.fr\/wp-content\/uploads\/2024\/03\/IMG_9796-scaled.jpg\u00a0\u00bb title_text=\u00a0\u00bbIMG_9796″ admin_label=\u00a0\u00bbmiroir 1″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00a0\u00bb2_5″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbetape 3 alignement laser\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]Etape 3 : Alignement du laser<\/p>\n

C’est l’\u00e9tape la plus longue, la plus m\u00e9ticuleuse et aussi la plus compliqu\u00e9e.
\nIl faut aligner, placer et orienter les miroirs dans l’espace.<\/p>\n

Le laser doit frapper pr\u00e9cis\u00e9ment le centre du miroir, quelque soit la position de la t\u00eate. Naturellement le laser CO2 est invisible…<\/p>\n

Le miroir 1 est donc recouvert de ruban de masquage en prenant soin de faire apparaitre les contours du miroir. Une pulsation du laser a puissance minimum permet de marquer le ruban sans le faire bruler.<\/p>\n

De multiples tirs sont n\u00e9cessaires pour placer puis orienter correctement le miroir.
\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_video src=\u00a0\u00bbhttps:\/\/youtube.com\/shorts\/ayMXzewbyOY?feature=share\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_video][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_2,1_2″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]Au tour des miroirs 2 et 3…
\n[\/et_pb_text][et_pb_image src=\u00a0\u00bbhttps:\/\/fablab-montagny-pres-louhans.fr\/wp-content\/uploads\/2024\/03\/IMG_9793-scaled.jpg\u00a0\u00bb title_text=\u00a0\u00bbIMG_9793″ admin_label=\u00a0\u00bbmiroir 2″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/fablab-montagny-pres-louhans.fr\/wp-content\/uploads\/2024\/03\/IMG_9787-scaled.jpg\u00a0\u00bb title_text=\u00a0\u00bbIMG_9787″ admin_label=\u00a0\u00bbmiroir 3″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00a0\u00bb1_2,1_2″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb1_2″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text admin_label=\u00a0\u00bbconclusion\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n

Fin de la maintenance.<\/p>\n

La coupe est bien plus efficace sans atteindre compl\u00e8tement celle de l’achat. La perte de puissance est estim\u00e9e \u00e0 10 \u00e0 15%. Pas de quoi n\u00e9cessiter le changement du tube. Il reste peut \u00eatre encore des ajustements \u00e0 faire ?<\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=\u00a0\u00bb1_2″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/fablab-montagny-pres-louhans.fr\/wp-content\/uploads\/2024\/03\/IMG_9805-scaled-e1711910850967.jpg\u00a0\u00bb title_text=\u00a0\u00bbIMG_9805″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/fablab-montagny-pres-louhans.fr\/wp-content\/uploads\/2024\/03\/IMG_9806-scaled-e1711910892216.jpg\u00a0\u00bb title_text=\u00a0\u00bbIMG_9806″ admin_label=\u00a0\u00bbtests\u00a0\u00bb _builder_version=\u00a0\u00bb4.24.2″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"

Ce samedi 30\/03, nous sommes en effectifs r\u00e9duits. L’occasion pour se lancer dans la maintenance du laser CO2. Celui-ci n\u00e9cessite un nombre importants de passages pour r\u00e9aliser des coupes. Les causes peuvent en \u00eatre multiples, \u00e0 commencer par un mat\u00e9riau de mauvaise qualit\u00e9 ou alt\u00e9r\u00e9, un simple encrassement du syst\u00e8me optique ou un tube laser […]<\/p>\n","protected":false},"author":31,"featured_media":249017,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":{"facebook_1992431424458146_173380702515979":""},"rop_publish_now_history":[],"rop_publish_now_status":"pending","footnotes":""},"categories":[39,2],"tags":[],"class_list":["post-249007","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-laser","category-news"],"yoast_head":"\nMaintenance CO2 - Le FabLab<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Maintenance CO2 - Le FabLab\" \/>\n<meta property=\"og:description\" content=\"Ce samedi 30\/03, nous sommes en effectifs r\u00e9duits. L'occasion pour se lancer dans la maintenance du laser CO2. Celui-ci n\u00e9cessite un nombre importants de passages pour r\u00e9aliser des coupes. 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