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WO2008049384A1 - Device for producing a three-dimensional object - Google Patents

Device for producing a three-dimensional object

Info

Publication number
WO2008049384A1
WO2008049384A1 PCT/DE2007/001357 DE2007001357W WO2008049384A1 WO 2008049384 A1 WO2008049384 A1 WO 2008049384A1 DE 2007001357 W DE2007001357 W DE 2007001357W WO 2008049384 A1 WO2008049384 A1 WO 2008049384A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
device
object
carrier
material
wall
Prior art date
Application number
PCT/DE2007/001357
Other languages
German (de)
French (fr)
Inventor
Frank Herzog
Original Assignee
Cl Schutzrechtsverwaltungs Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10Processes of additive manufacturing
    • B29C64/141Processes of additive manufacturing using only solid materials
    • B29C64/153Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00Apparatus for additive manufacturing; Details thereof or accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10Sintering only
    • B22F3/105Sintering only by using electric current other than for infra-red radiant energy, laser radiation or plasma ; by ultrasonic bonding
    • B22F3/1055Selective sintering, i.e. stereolithography
    • B22F2003/1056Apparatus components, details or accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F2998/00Supplementary information concerning processes or compositions relating to powder metallurgy
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Process efficiency
    • Y02P10/25Process efficiency by increasing the energy efficiency of the process
    • Y02P10/29Additive manufacturing
    • Y02P10/295Additive manufacturing of metals

Abstract

The invention relates to a device (1) for producing a three-dimensional object (2) by successively compacting layers of a compositional material (4) which can be compacted by means of electromagnetic radiation (3) or particle radiation at the locations corresponding to the respective cross section of the object (2), comprising a carrying device (6), arranged in a construction chamber (5), for carrying the object (2), having a carrier (7) with an upper side (8) facing the object (2), a wall (10) extending around the carrier (7) for providing the compositional material (4) with a peripheral delimitation, an application device (11) for applying layers of the compositional material (4) to the carrying device (6) or a previously formed layer, and an irradiating device (12) for irradiating layers of the compositional material (4) at the locations corresponding to the respective cross section of the object (2), wherein the carrier (7) of the carrying device (6) is arranged at a fixed height during the construction process and the wall (10) is mounted such that it can be adjusted in height by means of a program-controlled adjusting device (15).

Description

DESCRIPTION

Apparatus for producing a three-dimensional object

The invention / innovation relates to a device for producing a three-dimensional object by successive solidification of layers of a solidifiable by electromagnetic radiation or particle construction material, in particular a powder material, with the further features of claim 1.

Such devices are typically referred to as selective laser sintering machines, laser melting machine or stereolithography machines, depending on which formation material is used, and as the process proceeds within the device.

With such devices, it is possible to fabricate complex components based on the stored workpiece data such as CAD data, from other appropriate materials by the action of focused radiation. First, such devices for the manufacture of prototypes were provided (rapid prototyping) and the further development of such devices, particularly the use of powder materials, which are solidifiable without additional binder components, in particular meltable, has meant that components produced with such devices not only as prototypes may find application are used and used, but also as a finished functional parts. However, higher requirements are imposed on accuracy and intricacy as prototypes, so as to tend to form the said devices so that the components produced may be fabricated with higher and higher precision of final functional parts.

A known apparatus with the features of the preamble of claim 1 is obtained for example from DE 101 58 169 Al. The arranged in the installation space carrying device for carrying the object comprises a vertically adjustable support having a top facing the object. When applying successive layers of building material, the carrier is lowered, so that there is between the focusing optics of the irradiation device and to be solidified layer is always substantially the same distance. Although the devices with height-adjustable carriers reach a high precision as regards the storage and movement of the elements of the carrier means, nevertheless arise in the process of construction due to the height adjustment and storage of the carrier may inaccuracies.

The invention has the object of designing a device with the features of the preamble of claim 1 such that the device operates with higher precision and thus high-precision functional parts can be produced. This object is achieved according to the invention / innovation, characterized in that the carrier of the carrying device is arranged at a fixed height at least during the building process and is mounted for vertical adjustment by means of a program-controlled adjusting device, the wall that surrounds the support. Advantageous further developments are evident from the dependent claims 2 - 13.

By the invention, the carrier of the carrying device can be very solid and entirely play-free connected to a machine frame which also supports the irradiation apparatus, so that very defined conditions are met. The wall, which is displaceably mounted in accordance with the invention, up and down is not in direct contact with the workpiece itself, so that the height adjustment of the wall is not particularly critical.

In order to adapt to the continuously changing during the building process distance from the support base and the top object, it is advantageous to use the applicator and optionally at least a metering device programmatically adjustable in height to be interpreted. Thus, it is possible to process the application device, for example, by a computer program specific to the desired, advantageous for the specific construction process heights.

In order to reduce the number of moving parts and the required drives, and thus to simplify the whole apparatus, it is useful to summarize the applicator and the circumferential wall in a jointly adjustable unit. Further, this unit can at least mitumfassen a dispensing container of the metering device.

It is also advantageous to arrange a known focusing the beam path of the irradiation apparatus through which the focus of the machining beam is height adjustable depending. In particular, in the fact that the distance between the laser and the object surface changes continuously in the course of the process in a fixed-laser, it is advantageous to control the change in distance between the laser and the component surface by means of, for example, a computer-controlled focusing means such that the beam properties at the changing is distance remain constant.

Alternatively, it may be advantageous in case of a non-rigid assembly of the laser to form the irradiation device as a part of the height-adjustable assembly. In this case, the focusing to compensate for the change in distance between the laser and the object surface would basically superfluous.

A further advantageous measure is the circumferential wall in the manner of a vertically adjustable sleeve which surrounds the support and / or is guided on the outer edge form. In particular that the circumferential wall is guided on the outer edge of the carrier, provides a direct and simple embodiment of the subject invention represents -. A -

It is also advantageous when the upper edge of the wall to the upper side of the carrier or below can be lowered. Thereby, a large and comfortable access region to the slide surface is achieved, which is especially the removal of the object and / or the carrier plate substantially simplified. This advantage can also be achieved or enhanced by the wall moved fully upward over the support and / or moved away from them and / or can be pivoted away and / or can be removed.

Incidentally, it should be noted that the support is firmly connected to a machine frame of the device. This means on the one hand, that the carrier is integrally or detachably connected to the machine frame or in that the support is formed as an example removable support plate which is temporarily connected by means of fixing elements to the machine frame of the device. Especially, the provision of a releasable support plate makes it possible to refer to the construction process, the object together with the carrier plate in a simple manner from the space of the device and to make the release of the object from the carrier plate outside the device. This has on the one hand the advantage that the device can be used in parallel during the detachment of the object from the carrier platform.

Furthermore, it is proposed to arrange a powder collecting device in the machine area below the support. The powder picked up in such a powder receiving device may be, for example, automatically returned through a suction device into the storage container of the metering device, and finally the structure thus made available cycle again.

In terms of a supplementary function, the carrying device can be provided at least partially form part of a punching apparatus, so that the plunger, for example applied from above to a corresponding recess of the carrying device. it is advantageous in. to use this connection matrices each having different recesses, which can be used according to the desired cutting result with a corresponding stamp in the device.

The invention is explained in more detail with reference to embodiments in the drawing figures. these show

Figure 1 is a schematic representation of a device known from the prior art selective laser sintering system.

Fig. 2 is a schematic representation of a selective invention

Laser sintering system;

Fig. 3 is a schematic representation of the apparatus according to Fig. 2 in

Obj ektentnahmestellung.

In drawing Figure 1 is a selective laser sintering system of the prior art is shown. This comprises a device 1 for producing a three-dimensional object 2 by successive solidification of layers of a solidifiable by electromagnetic radiation or particle build-up material 3 4 to the corresponding to the respective cross section of the object 2 places. The device 1 comprises a space 5 arranged in a support device 6 for supporting an object 2. In this case the object 2 on the upper side 8 of the carrier 7 is established and this stored for a drive 9 adjustable in height (arrow A). The carrier 7 is closed by a wall 10 to the edge-side limit of the building material. 4 By means of an applicator 11, the structure material 4 is built up in layers on the carrying device 6 or a layer previously formed, and then an irradiation device 12, usually a laser 13 and a deflector 14 comprises, for irradiating the applied layers of the building material 4 to the respective cross section of the object 2 corresponding locations.

The object of the invention is evident from Figure Drawing second This differs from the prior art essentially in that the carrier 7 of the support device is arranged at a fixed height during the building process 6 and the wall is vertically adjustably mounted by means of a program-controlled adjusting device 15 10th The adjusting device 15 is preferably computer-controlled and comprises a drive 16. The applicator 11 includes a coater 17, the horizontally movable (arrow B) is mounted. By means of the coater 17, the building material 4 (powder material) is distributed over the space 5 and / or used to generate the smoothest possible top layer. The metering device 18 comprises actuators and cylinders by means of which construction material 4 from the metering 20 is vertically moved (arrow C) and subsequently can be mounted horizontally on the building sector 5 through the applicator. 11 The applicator 11, the circumferential wall 10 and the pump 18 together form a computer-controlled adjustable assembly 19 is moved via the drive sixteenth Further, the metering device 18 includes two dosing 20th

hi an alternative embodiment, not shown, the device 1 does not laterally positioned dosing tank 20, but used for application of material one over the space 5 "floating", at least in the horizontal traversing Beschichtersieb. In this case, the coater unit 17 has only the task of to smooth out on the substrate 7 placed seventh building material. 4 in the beam path of the irradiation device 12, a known focusing device 21 is preferably arranged, through which the focus of machining beam 3 is adjustable according to the body height of the object 2. of course, it is not absolutely necessary for the irradiation apparatus 12 to fix rigid. It is also within the scope of the invention to form the radiation device 12 as a part of the height-adjustable assembly 19 (not shown).

In the illustrated embodiment, the circumferential wall 10 is formed in the manner of a vertically adjustable sleeve 22 which surrounds the carrier 7 and is guided on the outer edge of the 23rd The upper edge 24 of the wall 10 to the upper side 8 of the carrier 7 or less lowered. Alternatively, but not in

Drawing figure 2 is shown, it can be provided that the wall 10 to be interpreted such that they move upwards over the support 7 and / or moved away from this, and / or pivoted and / or can be removed.

In a preferred embodiment, the wall sections 10 are adjacent to the carrying device 6 on its upper side, provided with the metered to 20. bevelled surfaces. Thus, an easier recycling of the building material 4 is achieved in the metering tank 20 during the return movement of the assembly nineteenth Carrier 7 is firmly connected to a machine frame 25 of the device. 1

In drawing figure 3, the device 1 according to the invention is illustrated in the workpiece removal position. The assembly 19 is with

Coater 17, dosing device 18 and the sleeve 22 moved via the driver 16 upward. The remaining above the support 7, unsolidified

Building material 4 falls on the edges 23 of the carrier 7 at the bottom by a

Screening means 27 in at least one receptacle 28 (see FIG. Arrow D). Li the illustrated embodiment, the collecting container 28, as it in a

Is arranged behind the edge section of the circumference 23 are formed at least two parts to be detached from the machine frame 25 to be able to. Alternatively, the receptacle 28 may have equal or greater, and a core diameter 30 may be integrally formed. In the case of the larger sleeve inner diameter 30 of the collection container 28, it is expedient to carry out the building material 4 on inclined side surfaces of the carrying device 6 to the surge tank 28th

Below the carrier 7 is preferably arranged controlled by a control device oscillating means 29 'which promotes the movements of the building material 4, starting from the construction area towards the collecting containers 28th In the embodiment illustrated in drawing figure 3 embodiment, the screening device is arranged on the carriage 26 27th Alternatively, the screening means may be secured to the recovery tank 28 27th Further, it is advantageous to couple the screen device 27 with the vibrator 29, so that the resulting screen device 27 in the building material 4 can easily pass through the sieve 27th

Claims

1. Device (1) for producing a three-dimensional object (2) by successive consolidation of layers of a means of electromagnetic radiation (3) or particle solidifiable
Building material (4) corresponding to the respective cross section of the object (2) bodies arranged with a in a space (5) carrying means (6) for supporting the object (2) with a carrier (7) with a said object (2) facing upper surface (8), a carrier (7) gripped wall (10) for edge-side limit of the building material (4), an applicator (11) for applying layers of the building material (4) on the carrying device (6) or a previously formed layer and an irradiation device (12) for irradiating layers of the building material (4) to the respective cross section of the object (2) corresponding locations,
characterized in that
the carrier (7) of the carrying device (6) is arranged at a fixed height during the building process and. - the wall (10) by means of a program-controlled
Adjusting device (15) is mounted height-adjustable.
2. Device according to claim 1,
characterized in that
the applicator (11) and optionally a metering device (18) adjustable in height are programmatically.
3. Device according to claim 1 or 2,
characterized in that
forming the applicator (11) and the circumferential wall (10) has a common height-adjustable assembly (19).
4. A device according to any one of claims 1-3,
characterized in that
at least one dispensing container (20) of the metering device (18) is integrated in the adjustable unit (19).
5. Device according to one of the preceding claims,
characterized in that a per se known focusing device (21) is arranged in the beam path of the irradiation device (12) by which the focus of the machining beam (3) is height-adjustable in dependence on.
6. Device according to one of the preceding claims,
characterized in that
the irradiation device (12) part of the height-adjustable
The assembly (19).
7. Device according to one of the preceding claims,
characterized in that
the circumferential wall (10) in the manner of a vertically adjustable sleeve (22) surrounds the support (7) or on the outer edge (23) is guided.
8. Device according to one of the preceding claims,
characterized in that
the upper edge (24) of the wall (10) to the top (8) of the carrier (7) or less lowered.
9. Device according to one of the preceding claims,
dadhαreh gdmawzύekmt & T, which 5
fully upward over the support (7) is .the wall (10) movable and / or moved away from this, and / or can be pivoted away and / or removed.
10
10. Device according to one of the preceding claims,
5 of the support (7) is fixed to a machine frame (25) of the device (1) is connected.
11. Device according to one of the preceding claims, tf
in the machine area below the support. (7) a powder collecting device is arranged.
12. Device according to spoke 11,
BERiCHTBGTES SHEET (RULE 91) ISAiEP the powder collection means comprises a screening device (27) and / or at least one collecting container (28).
13. Device according to one of the preceding claims,
characterized in that
the carrier '(7) and / or the sieve (27) having' an oscillation device (29) is in operative connection.
14. Device according to one of the preceding claims,
characterized in that
the carrying device (6) is at least partially formed as part of a punching device.
15. Device according to claim 14, characterized in that on the carrying device (6) notes are detachably fastened.
PCT/DE2007/001357 2006-10-24 2007-07-31 Device for producing a three-dimensional object WO2008049384A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200620016477 DE202006016477U1 (en) 2006-10-24 2006-10-24 Rapid prototyping apparatus for producing three-dimensional object, comprises carrier whose height is fixed and retaining wall whose height is adjusted by program-controlled adjuster
DE202006016477.4 2006-10-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200711003157 DE112007003157A5 (en) 2006-10-24 2007-07-31 Apparatus for producing a three-dimensional object

Publications (1)

Publication Number Publication Date
WO2008049384A1 true true WO2008049384A1 (en) 2008-05-02

Family

ID=37576308

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/001357 WO2008049384A1 (en) 2006-10-24 2007-07-31 Device for producing a three-dimensional object

Country Status (2)

Country Link
DE (2) DE202006016477U1 (en)
WO (1) WO2008049384A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011141152A3 (en) * 2010-05-12 2012-01-05 Eos Gmbh Electro Optical Systems Building-space changing device and an apparatus for producing a three-dimensional object with a building-space changing device
WO2012092912A1 (en) * 2011-01-05 2012-07-12 Voxeljet Technology Gmbh Device and method for constructing a laminar body comprising at least one position-adjustable body defining the working area
US9421715B2 (en) 2009-10-13 2016-08-23 Blueprinter Aps Three-dimensional printer
US9573225B2 (en) 2014-06-20 2017-02-21 Velo3D, Inc. Apparatuses, systems and methods for three-dimensional printing
US9656423B2 (en) 2010-03-31 2017-05-23 Voxeljet Ag Device and method for producing three-dimensional models
US9662840B1 (en) 2015-11-06 2017-05-30 Velo3D, Inc. Adept three-dimensional printing
US9770867B2 (en) 2010-12-29 2017-09-26 Voxeljet Ag Method and material system for building models in layers
US9878494B2 (en) 2011-08-31 2018-01-30 Voxeljet Ag Device for constructing models in layers
US9914169B2 (en) 2010-04-17 2018-03-13 Voxeljet Ag Method and device for producing three-dimensional models
US9919360B2 (en) 2016-02-18 2018-03-20 Velo3D, Inc. Accurate three-dimensional printing
US9925721B2 (en) 2010-02-04 2018-03-27 Voxeljet Ag Device for producing three-dimensional models
US9931697B2 (en) 2017-02-16 2018-04-03 Velo3D, Inc. Accurate three-dimensional printing

Families Citing this family (4)

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DE102010046467A1 (en) * 2010-09-24 2012-03-29 Mtu Aero Engines Gmbh Device, useful for manufacturing, repairing and/or replacing component, preferably aircraft component by powder solidifiable by radiation energy of radiation energy source, comprises fixed construction platform with frame
DE102014010930A1 (en) * 2014-07-28 2016-01-28 Cl Schutzrechtsverwaltungs Gmbh Apparatus and method for producing three-dimensional objects
DE102015200134A1 (en) * 2015-01-08 2016-07-14 Trumpf Laser- Und Systemtechnik Gmbh Modular SLM or SLS machine
DE102015109525A1 (en) * 2015-06-15 2016-12-15 Cl Schutzrechtsverwaltungs Gmbh Apparatus for producing three-dimensional objects as well as an associated method

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WO1993008928A1 (en) * 1991-11-08 1993-05-13 Dtm Corporation Multiple powder delivery for selective laser sintering
EP1316408A1 (en) * 2001-11-28 2003-06-04 Concept Laser GmbH Device for producing and/or processing objects made of powder particles

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
WO1993008928A1 (en) * 1991-11-08 1993-05-13 Dtm Corporation Multiple powder delivery for selective laser sintering
EP1316408A1 (en) * 2001-11-28 2003-06-04 Concept Laser GmbH Device for producing and/or processing objects made of powder particles

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9421715B2 (en) 2009-10-13 2016-08-23 Blueprinter Aps Three-dimensional printer
US9925721B2 (en) 2010-02-04 2018-03-27 Voxeljet Ag Device for producing three-dimensional models
US9815243B2 (en) 2010-03-31 2017-11-14 Voxeljet Ag Device for producing three-dimensional models
US9656423B2 (en) 2010-03-31 2017-05-23 Voxeljet Ag Device and method for producing three-dimensional models
US9914169B2 (en) 2010-04-17 2018-03-13 Voxeljet Ag Method and device for producing three-dimensional models
CN102917862A (en) * 2010-05-12 2013-02-06 电光系统有限责任公司 Building-space changing device and an apparatus for producing a three-dimensional object with a building-space changing device
US8845319B2 (en) 2010-05-12 2014-09-30 Eos Gmbh Electro Optical Systems Means for modifying a building space and device for manufacturing a three-dimensional object having means for modifying a building space
WO2011141152A3 (en) * 2010-05-12 2012-01-05 Eos Gmbh Electro Optical Systems Building-space changing device and an apparatus for producing a three-dimensional object with a building-space changing device
US9770867B2 (en) 2010-12-29 2017-09-26 Voxeljet Ag Method and material system for building models in layers
US9242413B2 (en) * 2011-01-05 2016-01-26 Voxeljet Ag Device and method for constructing a laminar body comprising at least one position adjustable body defining the working area
US9649812B2 (en) 2011-01-05 2017-05-16 Voxeljet Ag Device and method for constructing a laminar body comprising at least one position-adjustable body defining the working area
WO2012092912A1 (en) * 2011-01-05 2012-07-12 Voxeljet Technology Gmbh Device and method for constructing a laminar body comprising at least one position-adjustable body defining the working area
US20130234355A1 (en) * 2011-01-05 2013-09-12 Voxeljet Technology Gmbh Device and method for constructing a laminar body comprising at least one position adjustable body defining the working area
US9878494B2 (en) 2011-08-31 2018-01-30 Voxeljet Ag Device for constructing models in layers
US9586290B2 (en) 2014-06-20 2017-03-07 Velo3D, Inc. Systems for three-dimensional printing
US9821411B2 (en) 2014-06-20 2017-11-21 Velo3D, Inc. Apparatuses, systems and methods for three-dimensional printing
US9573225B2 (en) 2014-06-20 2017-02-21 Velo3D, Inc. Apparatuses, systems and methods for three-dimensional printing
US9676145B2 (en) 2015-11-06 2017-06-13 Velo3D, Inc. Adept three-dimensional printing
US9662840B1 (en) 2015-11-06 2017-05-30 Velo3D, Inc. Adept three-dimensional printing
US9919360B2 (en) 2016-02-18 2018-03-20 Velo3D, Inc. Accurate three-dimensional printing
US9931697B2 (en) 2017-02-16 2018-04-03 Velo3D, Inc. Accurate three-dimensional printing

Also Published As

Publication number Publication date Type
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DE202006016477U1 (en) 2006-12-21 grant

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