US 11,872,752 B2
Methods and apparatus for processing and dispensing material during additive manufacturing
Kenneth J. Susnjara, Birdseye, IN (US); Nicolas Vote, Newburgh, IN (US); Robert Gaesser, Dale, IN (US); Brian S. Smiddy, Newburgh, IN (US); and Scott G. Vaal, Jasper, IN (US)
Assigned to Thermwood Corporation, Dale, IN (US)
Filed by Thermwood Corporation, Dale, IN (US)
Filed on Feb. 24, 2023, as Appl. No. 18/173,877.
Application 16/877,864 is a division of application No. 16/455,877, filed on Jun. 28, 2019, granted, now 10,688,719, issued on Jun. 23, 2020.
Application 18/173,877 is a continuation of application No. 17/806,618, filed on Jun. 13, 2022, granted, now 11,607,845.
Application 17/806,618 is a continuation of application No. 17/396,391, filed on Aug. 6, 2021, granted, now 11,383,438, issued on Jul. 12, 2022.
Application 17/396,391 is a continuation of application No. 16/877,864, filed on May 19, 2020, granted, now 11,104,072, issued on Aug. 31, 2021.
Application 16/455,877 is a continuation in part of application No. 15/253,290, filed on Aug. 31, 2016, granted, now 10,377,124, issued on Aug. 13, 2019.
Prior Publication US 2023/0219296 A1, Jul. 13, 2023
Int. Cl. B29C 64/209 (2017.01); B29C 64/118 (2017.01); B33Y 40/00 (2020.01); B29C 64/379 (2017.01); B33Y 30/00 (2015.01); B33Y 10/00 (2015.01)
CPC B29C 64/209 (2017.08) [B29C 64/118 (2017.08); B29C 64/379 (2017.08); B33Y 40/00 (2014.12); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12)] 18 Claims
OG exemplary drawing
 
1. A system for additive manufacturing, comprising:
a nozzle configured to move in a plurality of directions, the nozzle being movable at a movement speed;
an extruder having an outlet and a screw disposed within a barrel; and
a pump having an inlet downstream of the extruder and an outlet upstream of the nozzle, the pump configured to pump material at a pump speed; and
a controller configured to control the pump speed and the movement speed of the nozzle, the controller being further configured to adjust the pump speed and the movement speed while causing the nozzle to change the direction of movement to move the nozzle in an arc or to form a corner.