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公开(公告)号：WO2022071948A1
公开(公告)日：2022-04-07
申请号：PCT/US2020/053614
申请日：2020-09-30
发明人： BOUCHER, Peter , EWE, Michael
摘要： According to examples, an apparatus may include a processor and a memory on which are stored computer-readable instructions that, when executed by the processor, may cause the processor to access a characteristic of a motor coupled to a carriage in a printer. In this regard, an ink cartridge may be mounted on the carriage and the characteristic may be of the motor during movement by the motor of the carriage. The processor may calculate an amount of ink in the ink cartridge based on the characteristic of the motor and may determine whether the calculated amount of ink differs from an estimated amount of ink in the ink cartridge. In some examples, based on the amount of ink in the ink cartridge differing from the estimated amount of ink in the ink cartridge, the processor may disable the printer and/or generate a notification.
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公开(公告)号：WO2016160026A1
公开(公告)日：2016-10-06
申请号：PCT/US2015/024153
申请日：2015-04-02
发明人： EWE, Michael
CPC分类号： G05B19/23 , B33Y50/02 , B41J19/202 , B41J25/001 , B41J29/38 , G05B19/232 , G05B2219/41437 , G05B2219/45187
摘要： An example method for controlling a carriage of a printing device is described. In one implementation, a target velocity value that satisfies a sharpness threshold is filtered by a processor resource of the printing device, a feed forward term is generated using a continuous model applied to the filtered velocity input using a plurality of electromechanical parameters, a feedback term is generated based on a difference between an expected pulse-width modulation (PWM) profile and an actual PWM profile, and a voltage to be provided to a motor of the carriage is adjusted based on the feed forward term and the feedback term.
摘要翻译： 描述了用于控制打印装置的滑架的示例性方法。 在一个实现中，满足清晰度阈值的目标速度值被打印设备的处理器资源过滤，使用使用多个机电参数的滤波速度输入应用的连续模型生成前馈项，反馈项 基于预期脉冲宽度调制（PWM）曲线和实际PWM曲线之间的差产生，并且基于前馈项和反馈项来调整要提供给电动机的电动机的电压。
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公开(公告)号：WO2018194672A1
公开(公告)日：2018-10-25
申请号：PCT/US2017/028915
申请日：2017-04-21
发明人： EWALD, Brent , EWE, Michael , COLLINS, Eric , SCHALK, Wesley R.
IPC分类号： B29C64/218 , B29C64/10 , B33Y30/00
摘要： Example systems relate to recoater movement. A non-transitory machine readable medium may contain instructions executable by a processor. The instructions may include instructions to change an action of a recoater in response to a determination that the recoater has reached a first location of a build area comprising build material. Instructions may further include instructions to lift the recoater in response to a determination that the recoater has reached a second location of the build area. Instructions may additionally include instructions to move the recoater over the second location at the lifted position, wherein the second location includes a build-up of the build material.
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公开(公告)号：WO2018194668A1
公开(公告)日：2018-10-25
申请号：PCT/US2017/028898
申请日：2017-04-21
发明人： EWE, Michael , COLLINS, Eric , DANIELS, Donnell D.
IPC分类号： B29C64/20 , B29C64/393 , B33Y30/00 , B33Y50/02
CPC分类号： B29C64/393 , B29C64/227 , B33Y30/00 , B33Y50/02
摘要： An example three-dimensional printing system includes a first carriage, a second carriage, and a synchronization controller. The synchronization controller is coupled to the first carriage and the second carriage to synchronize movements of the first carriage and the second carriage. The synchronization controller is to avoid interference between the first carriage and the second carriage.
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公开(公告)号：WO2018194551A1
公开(公告)日：2018-10-25
申请号：PCT/US2017/027980
申请日：2017-04-17
发明人： EWE, Michael , COLLINS, Eric , SCHALK, Wesley R.
IPC分类号： B29C64/245 , B33Y30/00
摘要： A 3D printer includes a movable platform, a motor to vertically translate the movable platform during an additive manufacturing process executed by the 3D printer to form a product on the movable platform, a linear encoder strip attached to the movable platform and a linear encoder reader disposed to read the linear encoder strip as the linear encoder strip moves relative to the linear encoder reader. A control circuit is to drive the motor based on an output of the linear encoder reader.
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公开(公告)号：WO2023043443A1
公开(公告)日：2023-03-23
申请号：PCT/US2021/050593
申请日：2021-09-16
发明人： EWE, Michael , PUN, Yong Seng , TEOH, Wei Lit , BOUCHER, Peter , BOUCHER, Peter J. , KRIEGER, Brent T.
IPC分类号： G06F3/12
摘要： An example device includes a processor and a non-transitory machine-readable storage medium storing instructions executable by the processor to detect an initial amount of print medium in a print medium reservoir of a printing device following a print medium reservoir loading operation; and determine, based on the detected initial amount of the print medium, whether to mute a low print medium warning for the printing device when an amount of the print medium in the print medium reservoir reaches a threshold amount of print medium associated with generating the low print medium warning during a printing operation.
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公开(公告)号：WO2021006897A1
公开(公告)日：2021-01-14
申请号：PCT/US2019/041242
申请日：2019-07-10
发明人： COLLINS, Eric , DIVINE, Morgan Scott , DAVIS, Robert D. , KAISER, Pierre J. , EWE, Michael , BARNES, Arthur H.
IPC分类号： B29C64/295 , B22F3/105 , B29C64/165
摘要： A system, method, and apparatus for varying output power for two or more fusing lamps in a 3D printer is disclosed. For example, the system includes a first fusing lamp to operate at a first voltage and a second fusing lamp to operate at a second voltage. The system may include a controller communicatively connected to the first fusing lamp and the second fusing lamp, wherein the controller sets the first voltage and the second voltage in response to a multi-lamp power output setting, a lamp power minimum, and a lamp power maximum.
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公开(公告)号：WO2019231431A1
公开(公告)日：2019-12-05
申请号：PCT/US2018/034841
申请日：2018-05-29
发明人： BARNES, Arthur H , EWE, Michael
IPC分类号： B29C64/165 , B29C64/20 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02
摘要： In an example implementation, a method of fusing layers of 3D parts includes forming a layer of build material, and selectively applying a liquid agent onto the layer of build material to define a part layer of a 3D part and a sacrificial layer of a sacrificial part. The method includes, in a single pass of a thermal energy source over the layer of build material, applying fusing energy to the sacrificial layer, sensing a temperature of the sacrificial layer, adjusting a power level of the thermal energy source based on the sensed temperature, and applying fusing energy to the part layer with the adjusted power level of the thermal energy source.
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公开(公告)号：WO2022086514A1
公开(公告)日：2022-04-28
申请号：PCT/US2020/056581
申请日：2020-10-21
发明人： EWE, Michael , JARIABKA, Keith , RAMOS, Juan D.
摘要： Example implementations relate to print media rollers. For example, implementations can include a device that includes a first roller to receive print media, a first sensor to determine when a leading edge of the print media is at a first location, a second roller to be activated based on a type of the print media and when the leading edge of the print media interacts with the first sensor, a second sensor to determine when the leading edge of the print media is at a second location, wherein the first roller is deactivated based on when the leading edge of the print media interacts with the second sensor.
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公开(公告)号：WO2019022766A1
公开(公告)日：2019-01-31
申请号：PCT/US2017/044376
申请日：2017-07-28
发明人： JEONG, Samuel , EWE, Michael
IPC分类号： B29C64/205 , B29C64/209 , B33Y30/00 , G12B15/04
摘要： An electronic device includes a carriage to move along an axis relative to a platform. In addition, the electronic device includes a print head disposed within the carriage to move with the carriage and to deliver a print agent to the platform. Further, the electronic device includes a cooling system. The cooling system includes an air source to deliver air to the print head within the carriage to cool the print head. The cooling system also includes a pressure sensor to measure a pressure of a first zone within the carriage. Moreover, the cooling system includes a controller to control a flow rate of the air into the first zone or from the first zone in response to the measured pressure to maintain the first zone at a positive pressure with respect to a second zone outside the carriage.
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