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Analyse infrarouge du temps de diffusion / reptation à l'interface


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Posted (edited) · Analyse infrarouge du temps de diffusion / reptation à l'interface

Salut

Un peu de lecture pour les vacances ;)

IMG_20160806_085002.thumb.jpg.9c2e2eb8c4ccc780b72b48dc6a0687f3.jpg

http://www.nist.gov/mml/upload/Session-2_2-Olmsted.pdf

Des précisions sur l'influence de la vitesse d'impression et surtout de la température d'extrusion

http://www.nist.gov/mml/upload/Session-3_3-Seppala-Migler-NIST-Polymer-based-AM-Workshop-Web-posting.pdf

Publication

http://spin1-www.nist.gov/customcf/get_pdf.cfm?pub_id=920174&_ga=1.145472692.1657972553.1470427122

IMG_20160806_085002.thumb.jpg.9c2e2eb8c4ccc780b72b48dc6a0687f3.jpg

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Posted · Analyse infrarouge du temps de diffusion / reptation à l'interface

Great post! That's why I always thought that air from the fans should have enough power on a circumference around the nozzle to properly cooldown the filament while hotend keeps moving.

As always fantastic post @rigs !

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Posted (edited) · Analyse infrarouge du temps de diffusion / reptation à l'interface

En vidéo c'est sympa aussi ;)

5a331fdfbcbd2_thermocamera.thumb.jpg.889293925066e41d389d02464f48207d.jpg

Vision Générale :

Infill :

Solid 1 :

Solid 2 :

5a331fdfbcbd2_thermocamera.thumb.jpg.889293925066e41d389d02464f48207d.jpg

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    Posted · Analyse infrarouge du temps de diffusion / reptation à l'interface

    That looks like a e3d/umo alu block? I ask because I always saw a lot of heat hitting the orint from the block making it harder to cold it down. Thanks for sharing!

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    Posted · Analyse infrarouge du temps de diffusion / reptation à l'interface

    That looks like a e3d/umo alu block? I ask because I always saw a lot of heat hitting the orint from the block making it harder to cold it down. Thanks for sharing!

     

    UMO ;)

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    Posted (edited) · Analyse infrarouge du temps de diffusion / reptation à l'interface

    Très très impressionnant et ça fait comprendre pas mal de chose...

     

    Cela prouve qu'il reste beaucoup à faire pour optimiser nos machines et nos slicer de moyenne gamme.

    Sur des machines pro il y a des chambres chaude pour ralentir la brutale descente en température et gagner une precieuse seconde ( ou plus ) d'inter-diffusion mais aussi pour permettre un meilleur respect du contrôle dimensionel.

    Et je ne parle pas de la mise sous pression de la chambre d'impression 5-7 bars pour faciliter l'absorption des micro-bulles d'air ( porosités ) emprisonées au dépot du filament, technique utilisé pour le rotomoulage....les 5 axes pour pouvoir " tisser " avec le dépot....la fibre longue....etc....

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