Patent ID: 9156205
Filing Date: 2015-10-13
Classification: B29C,B29K,B33Y

Abstract:
1. A three dimensional printer comprising: a supply of a core reinforced filament having a solidified matrix material impregnating reinforcing strands aligned along the core reinforced filament; a filament drive configured to feed forward the core reinforced filament at a feed velocity; a print head including a nozzle configured to receive the core reinforced filament from the filament drive and heat the core reinforced filament in the nozzle as the core reinforced filament is translated through the nozzle, the nozzle comprising a nozzle tip positioned to continuously iron the core reinforced filament as the core reinforced filament is translated through the nozzle and fused into a part; a print bed configured to receive the heated core reinforced filament translated through the nozzle; a print drive configured to relatively move the print head and print bed; and a controller configured to control the print drive and filament drive to relatively move the print head and the print bed at a deposition velocity matching the feed velocity of the core reinforced filament, and to apply pressure with the nozzle to continuously compact the core reinforced filament as the core reinforced filament is translated through the nozzle and deposited upon the print bed.