Profiled rails for in multi-directional binder jetting

Patent metadata

Field	Value
Publication number	US-12070799-B2
Application number	US-201816327915-A
Country	US
Kind code	B2
Filing date	Apr 20, 2018
Priority date	Apr 20, 2018
Publication date	Aug 27, 2024
Grant date	Aug 27, 2024

Abstract

The devices, systems, and methods of the present disclosure are directed to spreader positioning techniques for consistent and rapid layer-by-layer fabrication of three-dimensional objects formed through binder jetting. For example, an additive manufacturing system may include a roller and a print carriage. In a layer-by-layer fabrication process, the roller may move in advance of the print carriage over a dimension of a volume to spread a respective layer of powder onto which the print carriage delivers a binder. Controlling the position of the roller may facilitate achieving consistent layer characteristics which, in turn, may facilitate fabrication of high quality parts.

First claim

What is claimed is:

1. An additive manufacturing system comprising:
a print box defining a volume having a lateral dimension;
a print carriage movable above the volume, the print carriage defining at least one orifice directed toward the volume as the print carriage moves above the volume;
a roller transverse to the lateral dimension; and
a swing arm including an elongate member having a first end region and a second end region, a first joint disposed along the first end region, and a second joint disposed along the second end region, the elongate member pivotably coupled to the print carriage along a first joint and pivotably coupled to the roller along a second joint, and the swing arm actuatable to pivot the elongate member about the first joint and the second joint to move the roller along a substantially arcuate path relative to the print carriage to position the roller in advance of the print carriage in each direction of bidirectional movement of the print carriage and the roller along the lateral dimension, above the volume.

2. The system of claim 1 , further comprising a rail, wherein the print carriage and the roller are bidirectionally movable on the rail along the lateral dimension, above the volume.

Assignees

• Desktop Metal Inc

Inventors

• Myerberg Jonah
• Fulop Ricardo
• Fontana Richard
• Martin Charles Edward
• SCHUSTER Brett
• Sachs Emanuel Michael

Classifications

• B22F10/30

  Process control · CPC title

• B22F12/90

  Means for process control, e.g. cameras or sensors · CPC title

• B22F12/53

  Nozzles · CPC title

• B22F12/226

  for rotary motion · CPC title

• B22F12/224

  for motion along a direction within the plane of a layer · CPC title