Improved fdm product, method and apparatus

Details Improved fdm product, method and apparatus Improved fdm product, method and apparatus

B - Operations, Transporting

29

C

B29C 67/00 (2006.01) B05C 17/005 (2006.01) B29C 41/36 (2006.01)

Patent

CA 2411025

The invention generally relates to improvements in Fused Deposition Modelling (FDM), such that the properties of the model can correspond more closely to the original object on which it was modelled or, in case of a prototype, to the end product. By varying the cross section of a road of deposited material in shape and/or area, the resolution of the product can be increased, without significantly increasing the total time needed to manufacture the product. The invention further relates to a dispensing head having a flat smear surface, and means for cleaning the smear surface. Further improvements to the FDM technique are also disclosed.

L'invention concerne, de façon générale, les améliorations apportées à la fabrication de produits par dépôt de matière fondue, de sorte que les propriétés du modèle puissent mieux correspondre à l'objet original sur lequel il a été modelé ou, dans le cas d'un prototype, au produit final. En faisant varier la section transversale d'un ruban de matériau déposé en forme et/ou en surface, la résolution du produit peut être améliorée sans augmentation significative du temps total nécessaire à sa fabrication. L'invention concerne, en outre, une tête de distribution possédant une surface plate souillée, et des moyens destinés à nettoyer cette surface souillée. D'autres améliorations apportées à la fabrication de produits par dépôt de matière fondue sont également décrites dans cette invention.

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