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| − | {{ | + | {{Tuto Details |
|SourceLanguage=none | |SourceLanguage=none | ||
|Language=fr | |Language=fr | ||
| Ligne 17 : | Ligne 17 : | ||
|Main_Picture=Filet_bongo_à_ichtyoplancton_OIO_Filet_Ichtyo_Peche.jpg | |Main_Picture=Filet_bongo_à_ichtyoplancton_OIO_Filet_Ichtyo_Peche.jpg | ||
}} | }} | ||
| − | {{ | + | {{Introduction |
|Introduction= | |Introduction= | ||
}} | }} | ||
| − | {{ | + | {{Materials |
|Step_Picture_00=Filet_bongo_à_ichtyoplancton_product.jpg | |Step_Picture_00=Filet_bongo_à_ichtyoplancton_product.jpg | ||
|Step_Picture_01=Filet_bongo___ichtyoplancton_machine_a_coudre.jpg | |Step_Picture_01=Filet_bongo___ichtyoplancton_machine_a_coudre.jpg | ||
| Ligne 50 : | Ligne 50 : | ||
* Machine à coudre ( aiguilles + épingle + fil nylon ) | * Machine à coudre ( aiguilles + épingle + fil nylon ) | ||
* Pince à oeillets | * Pince à oeillets | ||
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|Attachment=Patron Grand Bas.DXF | |Attachment=Patron Grand Bas.DXF | ||
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}} | }} | ||
| − | {{ | + | {{Separator}} |
| − | {{ | + | {{Tuto Step |
|Step_Picture_00=Filet_bongo___ichtyoplancton_18111064_10158492618365364_1044104841_o.jpg | |Step_Picture_00=Filet_bongo___ichtyoplancton_18111064_10158492618365364_1044104841_o.jpg | ||
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| Ligne 85 : | Ligne 85 : | ||
3 - Souder les 2 cercles aux éléments centraux. | 3 - Souder les 2 cercles aux éléments centraux. | ||
}} | }} | ||
| − | {{ | + | {{Tuto Step |
|Step_Picture_00=Filet_bongo_à_ichtyoplancton_DimensionPatrons.png | |Step_Picture_00=Filet_bongo_à_ichtyoplancton_DimensionPatrons.png | ||
|Step_Picture_01=Filet_bongo___ichtyoplancton_tissu2.png | |Step_Picture_01=Filet_bongo___ichtyoplancton_tissu2.png | ||
| Ligne 105 : | Ligne 105 : | ||
* Découper le tube (partie supérieure) en forme de rectangle dans le tissus de dimensions 60cm x 100cm | * Découper le tube (partie supérieure) en forme de rectangle dans le tissus de dimensions 60cm x 100cm | ||
}} | }} | ||
| − | {{ | + | {{Tuto Step |
|Step_Picture_00=Filet_bongo___ichtyoplancton_galon.jpg | |Step_Picture_00=Filet_bongo___ichtyoplancton_galon.jpg | ||
|Step_Picture_01=Filet_bongo_à_ichtyoplancton_29468275_10160130510445364_8233279004501606400_o.jpg | |Step_Picture_01=Filet_bongo_à_ichtyoplancton_29468275_10160130510445364_8233279004501606400_o.jpg | ||
| Ligne 127 : | Ligne 127 : | ||
# Coudre la jonction verticale et ajouter le galon vertical de renfort. | # Coudre la jonction verticale et ajouter le galon vertical de renfort. | ||
}} | }} | ||
| − | {{ | + | {{Tuto Step |
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| Ligne 136 : | Ligne 136 : | ||
* 3 - Coller le manchon de longueur 95mm à la sortie 80mm du réducteur | * 3 - Coller le manchon de longueur 95mm à la sortie 80mm du réducteur | ||
}} | }} | ||
| − | {{ | + | {{Tuto Step |
|Step_Picture_00=Filet_bongo___ichtyoplancton_distance_oeillets.jpg | |Step_Picture_00=Filet_bongo___ichtyoplancton_distance_oeillets.jpg | ||
|Step_Picture_01=Filet_bongo___ichtyoplancton_pr_filage.jpg | |Step_Picture_01=Filet_bongo___ichtyoplancton_pr_filage.jpg | ||
| Ligne 146 : | Ligne 146 : | ||
* Fixer le poids de 1,5kg à l'armature (plomb de plongée) | * Fixer le poids de 1,5kg à l'armature (plomb de plongée) | ||
}} | }} | ||
| − | {{ | + | {{Notes |
|Notes=TISSU | |Notes=TISSU | ||
>> Fournisseur du tissu maille 900µ : Diatex / tissu PA-22.30 maille 920µ | >> Fournisseur du tissu maille 900µ : Diatex / tissu PA-22.30 maille 920µ | ||
| Ligne 153 : | Ligne 153 : | ||
>>Référence de la vanne 32mm : https://www.boospa.net/pieces-spa/tuyauterie/vannes-spa/vanne-32mm,fr,4,010603-02.cfm#.Wv0y8aTRDIU | >>Référence de la vanne 32mm : https://www.boospa.net/pieces-spa/tuyauterie/vannes-spa/vanne-32mm,fr,4,010603-02.cfm#.Wv0y8aTRDIU | ||
}} | }} | ||
| − | {{ | + | {{Tuto Status |
| − | |Complete= | + | |Complete=Published |
}} | }} | ||
Version actuelle datée du 9 décembre 2019 à 11:33
Ce tutoriel décrit la fabrication d'un filet bongo pour le prélèvement d'ichtyoplancton (larves) dans le cadre des opérations de sciences marines participatives "Objectif Plancton"
Contributeurs : Explore, Cap vers la Nature, MNHN Concarneau, Xavier Coadic, Astrolabe Expéditions
Difficulté
Moyen
Durée
1 jour(s)
Catégories
Sport & Extérieur, Science & Biologie
Coût
120 EUR (€)
Matériaux
Armature :
- 2 tiges inox 8mm de 94,25 cm pour les ronds
- 2 tiges inox 8mm de 20cm pour lier les ronds
- 2 tiges inox 8mm de 5cm pour renforcer les liens
Filets :
- 10 Oeuillets inoxydable de 10 ou 11mm
- 3 m² de tissu maille 900µ ou 500µ
- 1m² de toile de spi ou autre tissu pour les galons de protections
Assemblage :
- 4m de cordage 3 ou 4mm pour transfiler les filets sur l'armature
- Un flotteur (type bouée filet) avec 3 m de bout
- Un poids de 1,5 kg pour lesté l'armature (plombs de plongée)
Collecteur :
- 1 tube en T PVC de diamètre 80mm
- 1 réducteur 80mm >> 50mm
- 1 vannes 50mm
- 1 bouchon 80mm
- Un carré de tissu maille 900µ 10cmx10cm
- Colle PVC
Outils
- Poste à souder l'inox
- Meuleuse et scie à métaux
- Machine à coudre ( aiguilles + épingle + fil nylon )
- Pince à oeillets
Étape 1 - Fabrication de l'armature
Découper dans les barres d'inox :
- 2 tiges inox 8mm de 94,25 cm pour les ronds
- 2 tiges inox 8mm de 20cm pour les renforts centraux
- 2 tiges inox 8mm de 5cm pour les renforts centraux
1 - Pour réaliser les ronds, tordre la tige en la coinçant entre 2 tubes métalliques pris dans un étau. Souder les extrémités pour fermer les cercles
2 - Souder les éléments de renforts centraux.
3 - Souder les 2 cercles aux éléments centraux.
Étape 2 - Découpe du tissu
Patron pour le cône tronqué (partie inférieure):
- Dimensions du cône tronqué :
- Apothème : 120cm
- Arc cercle intérieur : 32cm
- Arc cercle extérieur : 98cm
- Pour calculer les angles de construction du cône tronqué : http://www.toutcalculer.com/geometrie/volume-surface-tronc-de-cone.php
- Reporter les dimension du cône tronqué sur du carton et découper le carton
Découpe du tissu :
- Reporter le patron du cône tronqué sur le tissu et découper les différentes parties
- Découper le tube (partie supérieure) en forme de rectangle dans le tissus de dimensions 60cm x 100cm
Étape 3 - Couture des filets
Préparation des galons de protection :
- Des galons sont découpés sur des vieux spi pour renforcer les bords des tissus. Ils sont ensuite cousus sur les bords pour ne pas qu'ils s’effilochent
Dimension des galons :
- 1 Galon vertical (couture sur toute la hauteur du filet) : 180cm x 5cm
- 2 Galon supérieur (proche de l'arceau) : 98cm x 10cm
- 4 Galons intermédiaire(pour relier le cône tronqué au rectangle) :98cm x 5cm
- 1 Galon inférieur pour relier au collecteur de 38cm x 38cm
Jonction des filets :
- Coudre le cône avec le rectangle (superposition de 5cm)
- Coudre 1 galon de renfort sur la jonction intérieure et 1 autre à l'extérieur.
- Coudre le galon supérieur a cheval sur la partie supérieure
- Coudre le galon inférieur a cheval sur le bas du cône tronqué.
- Coudre la jonction verticale et ajouter le galon vertical de renfort.
Étape 4 - Fabrication des collecteurs
- Couper 2 morceaux de 50mm de long dans le tube PVC de 32 mm de diamètr
- 1 - Coller ces 2 morceaux aux bagues intérieures de chaque côtés de la vanne
- 2 - Coller le réducteur 32mm//80mm avec la sortie supérieure de la vanne
- 3 - Coller le manchon de longueur 95mm à la sortie 80mm du réducteur
Étape 5 - Assemblage des filets sur l'armature
- Mettre un oeillet tous les 10cm sur sur le bord supérieur
- Transfiler les 2 filets sur l'armature en passant par les oeillets avec 2 garcettes 3 ou 4mm de 2m de longueur
- Fixer le poids de 1,5kg à l'armature (plomb de plongée)
Notes et références
TISSU >> Fournisseur du tissu maille 900µ : Diatex / tissu PA-22.30 maille 920µ
COLLECTEUR >>Référence de la vanne 32mm : https://www.boospa.net/pieces-spa/tuyauterie/vannes-spa/vanne-32mm,fr,4,010603-02.cfm#.Wv0y8aTRDIU
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