公开(公告)号：US20230141459A1

公开(公告)日：2023-05-11

申请号：US17979244

申请日：2022-11-02

Applicant: Markforged, Inc.

Inventor： Bruce David Jones ,  Joseph Roy-Mayhew ,  Jessica Faust ,  Benjamin Gallup ,  David Steven Benhaim

IPC: G05B19/4099

CPC classification number: G05B19/4099 ,  G05B2219/49023

Abstract: A 3D printing apparatus and method corrects for skew in the motion components of the apparatus without the use of an independent reference object. A calibration object having features therein or thereon is printed. A user rotates the calibration object by a certain angle after it is printed. The features in/on the calibration object are measured, and an amount of skew is determined based on the measurements. In addition, a 3D printing operation is compensated based on the effects of a coefficient of thermal expansion and/or moisture absorption on dimensional changes.

公开(公告)号：US20240173922A1

公开(公告)日：2024-05-30

申请号：US18519354

申请日：2023-11-27

Applicant: Markforged, Inc.

Inventor： Corey Hazeltine Walsh ,  Suhas Nawada ,  Benjamin Gallup

IPC: B29C64/386 ,  B22F10/85 ,  B22F12/90 ,  B29C64/118 ,  B29C64/393 ,  B33Y50/00 ,  B33Y50/02

CPC classification number: B29C64/386 ,  B22F10/85 ,  B22F12/90 ,  B29C64/118 ,  B29C64/393 ,  B33Y50/00 ,  B33Y50/02

Abstract: A 3D printing apparatus and method that compensates for offset in the deposition of print material as a result of nozzle movement. The compensation may include discretizing a path of travel of a 3D print nozzle into segments, compensating each path segment based on an expected offset of print material deposition, and generating a compensated path of travel. The compensation may apply an inversion of a system model that is based on an expected offset of print material deposition relative to the nozzle path of travel.

公开(公告)号：US20240066797A1

公开(公告)日：2024-02-29

申请号：US17893492

申请日：2022-08-23

Applicant: Markforged, Inc

Inventor： Maxim Seleznev ,  Joseph Roy-Mayhew ,  Benjamin Gallup ,  Yuwei Li ,  Michael Imburgia

IPC: B29C64/209 ,  B29C64/295 ,  B29C64/321 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: B29C64/209 ,  B29C64/295 ,  B29C64/321 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/118

Abstract: A 3D printing apparatus and method includes a piezo actuator that reciprocates a tappet. The reciprocation of the tappet generates pressure within a chamber filled with molten print material. The generated pressure causes the molten print material to be extruded through a nozzle coupled to the chamber. The piezo actuator is controlled to switchably provide continuous extrusion of print material or extrusion of discrete droplets of print material.

公开(公告)号：US20240140042A1

公开(公告)日：2024-05-02

申请号：US18494212

申请日：2023-10-25

Applicant: Markforged, Inc.

Inventor： Jessica Faust ,  Joseph Roy-Mayhew ,  Benjamin Gallup ,  Corey Hazeltine Walsh ,  Bruce David Jones ,  Peter Kelly

IPC: B29C64/393 ,  B29C64/232 ,  B29C64/336

CPC classification number: B29C64/393 ,  B29C64/232 ,  B29C64/336 ,  B33Y50/02

Abstract: A 3D printing apparatus and method prints a partial part, and continues to print the part after the partially-printed part has been rotated. Each partial printing operation may include reinforcement via application of one or more layers of continuous fiber. The rotation and continued printing of the partially-printed part allows for fiber orientation in different orientations for the printed part.