aérateur individuel portable avec filtre, adaptable sur cagoule (voir pattron dans la version 2) et combinaison semi étanchee. (ceci n’est pas un équipement médical) .
modifications et amélioration depuis la version 2 :
- fixation des sangles, plus solide et simplifiée.
- remplacement de la grille par un couvercle (prise d’air en chicane), pour éviter que le filtre soit mouillé par la pluie, les postillons, par du désinfectant pulvérisé…
- retour à une forme carré, moins esthétique, mais rends la fabrication du filtre et son installation, plus facile, plus rapide et plus étanche.
- une fixation par clips remplace les 3 vis de facade (moins de pièces additionnelles nécessaires)
individual portable aerator with filter, adaptable to hood (see pattern in version 2) and semi-waterproof suit. (this is not medical equipment).
modifications and improvements since version 2:
- straps fixing, more solid and simplified.
- replacement of the grid by a cover (air intake in baffle), to prevent the filter from being wet by rain, postillions, by sprayed disinfectant …
- return to a square shape, less aesthetic, but make the manufacture of the filter and its installation, easier, faster and more waterproof.
- fixing by clips replaces the 3 front screws (less additional parts required).
Necessary material :
- 4 steel bolts, 4 to 5 cm long and 4 mm in diameter (+ 4 bolts adapted). the head of the bolts should preferably be flat.
- glue suitable for 3D printing plastic (for PLA: neoprene or cianoacrylate or epoxy contact glue or hot glue or polyvinyl glue with quick setting).
- a computer fan 8 cm by 8 cm and 2.6 cm thick or less.
a 12 V battery suitable for the fan (check the fan amperage).
This article was first featured at https://ift.tt/399W5IA on March 24, 2020 at 04:13PM by briareos
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