公开(公告)号：US10513103B2

公开(公告)日：2019-12-24

申请号：US15327856

申请日：2015-07-21

Applicant: Stratasys, Inc.

Inventor： Paul J. Leavitt ,  Andrew Rice ,  Timothy Hjelsand

IPC: B01D45/12 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B29C64/106 ,  B29C64/386 ,  B29C48/92 ,  B29C48/02 ,  B29C48/05 ,  B29C48/255 ,  B29C48/25 ,  B29C48/37 ,  B29K105/00 ,  B29C48/285

Abstract: An assembly for use in an additive manufacturing system to print a three-dimensional part that includes an extruder comprising a gear and a motor that turns the gear, wherein rotation of the gear regulates a flow of material out of the extruder. A controller, provides a control signal to the motor to control the rate at which the motor turns the at least one gear and incorporates a time-varying signal into the control signal to reduce ripples in the material output by the extruder.

公开(公告)号：US20170203507A1

公开(公告)日：2017-07-20

申请号：US15327856

申请日：2015-07-21

Applicant: Stratasys, Inc.

Inventor： Paul J. Leavitt ,  Andrew Rice ,  Timothy Hjilsand

IPC: B29C67/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y10/00

Abstract: An assembly for use in an additive manufacturing system to print a three-dimensional part that includes an extruder comprising a gear and a motor that turns the gear, wherein rotation of the gear regulates a flow of material out of the extruder. A controller, provides a control signal to the motor to control the rate at which the motor turns the at least one gear and incorporates a time-varying signal into the control signal to reduce ripples in the material output by the extruder.