WO2023086860A1 - Lit de support magnétique pour une imprimante 3d - Google Patents

Lit de support magnétique pour une imprimante 3d Download PDF

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Publication number
WO2023086860A1
WO2023086860A1 PCT/US2022/079599 US2022079599W WO2023086860A1 WO 2023086860 A1 WO2023086860 A1 WO 2023086860A1 US 2022079599 W US2022079599 W US 2022079599W WO 2023086860 A1 WO2023086860 A1 WO 2023086860A1
Authority
WO
WIPO (PCT)
Prior art keywords
support
support bed
build plate
bed
grooves
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US2022/079599
Other languages
English (en)
Inventor
William Jack Macneish Iii
Kyle GILLIES
Yasushi Mizuno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Essentium Ipco LLC
Original Assignee
Essentium Ipco LLC
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
Application filed by Essentium Ipco LLC filed Critical Essentium Ipco LLC
Publication of WO2023086860A1 publication Critical patent/WO2023086860A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive 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
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/245—Platforms or substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE 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
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive 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
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE 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
    • B33Y10/00—Processes of additive manufacturing

Definitions

  • the present disclosure relates generally to a support bed for constructing a three-dimensional printed part thereon.
  • a three-dimensional object is formed by sequentially depositing layers of a material. Each layer of the material is supported by the layer of material underneath it and where it may not be possible to fully support the material, support structures are incorporated into the design that may be removed after printing is completed.
  • the material is deposited on a build plate, which may be directly or indirectly heated. Ideally, the material adheres to the build plate during printing and then may be removed from the build plate after printing without damaging the printed three-dimensional object. Further, the build plate provides a flat surface to print on or a surface conforming to the geometry of the object that is to be printed.
  • the build-plate may be removed from the three-dimensional printer and replaced with a new build plate.
  • removing the build plate may allow the plate to flex or be conditioned in a process chamber, to facilitate removal of the printed object from the plate.
  • the build plate is supported within the print chamber by a support bed. More specifically, the build plate is disposed on a support surface of the support bed.
  • Various solutions have been developed to adhere a build plate to a support bed in a three-dimensional printer. Such solutions include the use of magnetic plates or releasable adhesives.
  • the support bed may warp. Warping of the support bed may lead to warping of the build plate or may cause the build plate to become improperly affixed to the support bed. Warping of the build plate or failure of the build plate to properly adhere to the support bed surface will likely result in printing defects.
  • a three-dimensional printer includes a support tray moveably fixed on a frame of the three-dimensional printer and configured to move in a Z-direction, an insulation sheet supported by the support tray, a heating member adjacent to and supported by the insulation sheet, a support bed adjacent to the heating member and supported by the support tray, and a ferromagnetic build plate adjacent to and supported by the support bed, wherein the ferromagnetic build plate includes a pair of locator tabs that locate and align the build plate on the support bed.
  • the three- dimensional printer further includes a plurality of adjustable mounting assemblies.
  • the plurality of adjustable mounting assemblies includes three adjustable mounting assemblies.
  • one of the three adjustable mounting assemblies includes a first end for supporting the print bed and a second end fixed to the support tray.
  • the first end of one of the three adjustable mounting assemblies for supporting the print bed includes a pair of opposing walls.
  • the first end of one of the three adjustable mounting assemblies for supporting the print bed includes a hemispherical shaped surface.
  • the first end of one of the three adjustable mounting assemblies for supporting the print bed includes a planar surface.
  • the support bed further includes a first set of grooves and a second set of grooves and wherein the first set of grooves are perpendicular to the second set of grooves.
  • the support bed further includes a plurality of magnets.
  • the support bed further includes a plurality of apertures and wherein the apertures are disposed in a surface of the support bed in a contact surface area defined by the first set of grooves and the second set of grooves.
  • the three- dimensional printer includes at least one of the plurality of magnets is disposed in at least one of the plurality of apertures in the contact surface area.
  • the high temperature magnets produce a magnetic force that holds a ferromagnetic build plate against a surface of the support bed.
  • a method of printing a three-dimensional object with a three-dimensional printer includes moving a support tray in a Z-direction, wherein the support tray is moveably fixed on a frame of the three-dimensional printer, insulating the support tray with an insulation sheet adjacent to and supported by the support tray, supporting the printed object using a build plate, supporting the build plate with a support bed supported by the support tray, and heating the support bed with a heating member adjacent to and supported by the insulation sheet.
  • the method further includes adjusting a flatness of the support bed using a plurality of adjustable mounting assemblies.
  • the method further includes adjusting a flatness of the support bed includes using three adjustable mounting assemblies to adjust the flatness of the support bed.
  • the method further includes adjusting a flatness of the support bed includes using one of the three adjustable mounting assemblies having a first end for supporting the support bed and a second end fixed to the support tray.
  • the method further includes adjusting a flatness of the support bed includes using the first end of one of the three adjustable mounting assemblies for supporting the support bed having a pair of opposing walls.
  • the method further includes adjusting a flatness of the support bed includes using the first end of one of the three adjustable mounting assemblies for supporting the support bed having a hemispherical shaped surface.
  • the method further includes adjusting a flatness of the support bed includes using the first end of one of the three adjustable mounting assemblies for supporting the support bed includes a planar surface.
  • the method further includes supporting the build plate with a support bed supported by the support tray further includes supporting the build plate with a support bed having a first set of grooves and a second set of grooves and wherein the first set of grooves are perpendicular to the second set of grooves.
  • the method further includes supporting the build plate with a support bed supported by the support tray further includes supporting the build plate with a support bed wherein the support bed further includes a plurality of magnets.
  • the method further includes supporting the build plate with a support bed supported by the support tray further includes supporting the build plate with a support bed having a plurality of apertures and wherein the apertures are disposed in a surface of the support bed in a contact surface area defined by the first set of grooves and the second set of grooves.
  • FIG. 1 is a perspective view of a three-dimensional printer illustrated according to an exemplary embodiment
  • FIG. 2 is a perspective view of a support tray for supporting and moving the support bed within the process chamber along the third axis A3 illustrated according to an exemplary embodiment
  • FIG. 3 is a perspective view of an insulation sheet illustrated according to an exemplary embodiment
  • FIG. 4 is a perspective view of a heating member illustrated according to an exemplary embodiment
  • FIGS. 5A and 5B a perspective view of a support surface of a support bed is illustrated in FIG. 5A and a bottom surface of support bed is illustrated in FIG. 5B according to an exemplary embodiment
  • FIG. 6 is a perspective view of a build plate illustrated according to an exemplary embodiment
  • FIGS. 7A and 8B is a perspective view of a mounting assembly in FIG. 7A and in a cross-sectional view in FIG. 7B illustrated according to an exemplary embodiment
  • FIGS. 8A and 8B is a perspective view of another (a second) mounting assembly in FIG. 8A and in a cross-sectional view in FIG. 8B illustrated according to an exemplary embodiment
  • FIGS. 9A and 9B is a perspective view of yet another (a third) mounting assembly in FIG. 9A and in a cross-sectional view in FIG. 9B illustrated according to an exemplary embodiment.
  • FIG. 10 is a perspective view of a magnet illustrated according to an exemplary embodiment.
  • FIG. 1 An aspect of a three-dimensional printer 100 is illustrated in FIG. 1 .
  • the three-dimensional printer 100 generally includes an enclosure 102 defining a process chamber 104 and a support bed 106 supported within the process chamber 104.
  • the support bed 106 includes a support surface 108 onto which a build plate 110 is placed.
  • the three-dimensional printer 100 further includes a print head 112, which deposits filament 114 onto the build plate 110 to form the three-dimensionally printed object 116.
  • the print head 112 is supported relative to the build plate 110 on an x,y-axis gantry 118 allowing the print head 112 to move in a plane defined by a first axis A1 and a second axis A2.
  • the support bed 106 is moved relative to the print head 112 by a z-axis gantry 120 allowing the support bed 106 to move along a third axis A3 orthogonal to the plane defined by the first axis A1 and second axis A2.
  • the print head 112 may be moved along the z-axis and the support bed 106 may be moved along the x,y-axis.
  • Filament 114 is stored in one or more canisters 122 and provided to the print head 112 by a filament drive system 124.
  • a controller 128 is provided to control the various functions of the three-dimensional printer 100.
  • Support tray 150 includes a pair of side support brackets 152 and 154.
  • Side support brackets 152 and 154 have a top edge surface 156 and 158 that support for rigid mounting a top support bracket 160.
  • Top support bracket 160 is attached to the top edge surfaces 156, 158 of side support brackets 152 and 154 by fasteners such as screws and the like. Additional rigidity is imparted to the support tray 150 by a cross support bracket 162.
  • Side support brackets 152 and 154 are each attached to cross support bracket 162 by fasteners such as screws and the like.
  • side support brackets 152 and 154 have ends 164 and 166 that are configured to engage the Z-axis gantry 120 drive system (not shown) in the process chamber 104 which moves the support tray 150 in the As direction within the process chamber 104.
  • a plurality of mounting assemblies 170, 172 and 174 are attached to support tray 150. More specifically, mounting assembly 170 is attached with fasteners or the like to side support bracket 152, mounting assembly 172 is attached with fasteners or the like to side support bracket 154, and mounting assembly 174 is attached with fasteners or the like to cross support bracket 162. As will be described in greater detail below, mounting assemblies 170, 172 and 174 are configured to mount the support bed 106 to the support tray 150.
  • Insulation sheet 180 is illustrated.
  • Insulation sheet 180 is preferably made of a material that impedes the transmission of heat to the support tray 150.
  • insulation sheet 180 is made of alumina silica ceramic fiber.
  • Insulation sheet 180 has three apertures 182, 184 and 186.
  • Aperture 182 is configured to allow mounting assembly 170 to pass therethrough.
  • Aperture 184 is configured to allow mounting assembly 172 to pass therethrough.
  • Aperture 186 is configured to allow mounting assembly 174 to pass therethrough.
  • Heating member 190 is a thermally conductive sheet having at least one or more resistive heating element and one or more thermal detectors affixed thereto.
  • the resistive heating elements provide a watt density in the range of 0.1 Watts per square centimeter to 0.3 Watts per square centimeter, including all values and ranges therein.
  • the heating member 190 further includes a plurality of apertures 192, 194 and 196.
  • Aperture 192 is configured to allow mounting assembly 170 to pass therethrough.
  • Aperture 194 is configured to allow mounting assembly 172 to pass therethrough.
  • Aperture 196 is configured to allow mounting assembly 174 to pass therethrough.
  • Support bed 106 includes a plurality of apertures 210 that partially penetrate the thickness of the support bed 106. Apertures 210 are configured to hold a ring-shaped magnet 212 shown in FIG. 10. Ring-shaped magnet 212 is preferably made of a high temperature magnet material, such as samarium cobalt (SmCo). The operating temperature of the process chamber 104 is between 20 degrees C and 200 degrees C. Thus, the magnets 212 and support bed 106 are configured to withstand the operating temperature range and maintain relative flatness of the support bed over the operating temperature range.
  • SmCo samarium cobalt
  • the support bed 106 includes a number of grooves 214 defined in the support surface 108.
  • a first set of grooves 220 are provided across the support surface 200 of the support bed 106 at a given interval, wherein the interval is in the range of 1 cm to 10 cm, including all values and ranges therein and in one example 61 mm and 71 mm spacing.
  • a second set of grooves 222 are provided at an angle A to the first set of grooves 220, wherein the angle A is in the range of 30 to 120 degrees, including all values and ranges therein, and is preferably 90 degrees (i.e., the second set of grooves 222 is perpendicular to the first set of grooves 220).
  • the intersecting first and second set of grooves 220 and 222 define a contact surface area 224 that includes at least one aperture 210.
  • the support bed 106 is formed of MIC6 or ATP5 precision cast aluminum, assuming a coefficient of thermal expansion of 0.000024 m/mK. Further, the support surface 108 of the support bed 106 exhibits a flatness in the range of 0.00 mm to 0.05 mm over the entire length and width of the bed 106, including all values and ranges therein, such as less than 200 microns, at elevated temperatures of up to 200 degrees C, regardless of any other features such as the grooves defined in the support surface 108.
  • support bed 106 further includes side rails 226 integrally formed on each side 228 of the support bed 106.
  • Side rails 226 have a T-shaped crosssection and are configured to add rigidity to the support bed 106 to prevent warpage of the bed 106 and maintain flatness.
  • the bottom surface 202 includes three mounting features 250, 252, and 254 that each protrude from bottom surface 202.
  • Mounting feature 250 has a square or rectangular profile 260 that mates with an end 171 of mounting assembly 170.
  • Mounting feature 252 has a hemispherical profile 262 that mates with an end 173 of mounting assembly 172.
  • Mounting feature 254 has a planar surface 264 that mates with an end 173 of mounting assembly 172.
  • Build plate 110 is a thin plate have a profile that generally conforms to the profile of the support bed 106.
  • the build plate is made of spring steel or similar material that has flexibility and may be deformed but returns to the original shape and flatness.
  • build plate 110 is made of a ferromagnetic material in the form of solid material, a coating or a composite made of a laminate of a polymer and a metal.
  • Build plate 110 has a pair of locator tabs 270 and 272 located and protruding from a side 274 of the build plate 110.
  • Locator tabs 270 and 272 are configured to engage locating features 271 and 273 on the support bed 106 to ensure that build plate 110 is oriented correctly on the support bed 106. Additionally, build plate 110 had a pair of tabs 278 and 280 that are located and protrude from a side 282 of the build plate 110 opposite the side 274. Tabs 278 and 280 are coated with a thermally insulating material such as silicone or the like. Tabs 278 and 280 function as handles or grab areas that can be grasped by a user or operator of the three- dimensional printer 100 to remove the build plate 110 from the process chamber 104.
  • the magnetic forces produced by the high temperature magnets 212 fixed to support bed 106 attract the ferromagnetic material of the build plate 110. Through the magnetic attraction of the build plate 110 to the support bed 106, the build plate 110 is securely held to the support bed.
  • the support bed 106 having the plurality of magnets 212 disposed in apertures 210 over the support surface 108 provides a magnet density of one magnet per 44 cm 2 .
  • Mounting assembly 170 is illustrated in a perspective view in FIG. 7A and in a cross-sectional view in FIG. 7B.
  • Mounting assembly 170 includes a fixed member 300 fixedly mounted to the support tray 150 and a movable member 302 slidably mounted to the support tray 150.
  • Fixed member 300 includes a pair of mounting apertures 304 and 306.
  • Mounting apertures 304 and 306 are configured to receive fasteners such as screws and the like to securely attach fixed member 300 to the support tray 150.
  • fixed member 300 is attached to side support bracket 152 using the mounting apertures 304 and 306.
  • Movable member 302 is slidably mounted to the support tray 150 via a pair of slots 308 and 310. Slots 308 and 310 are configured to receive fasteners such as screws and the like to slidably attach movable member 302 to the side support bracket 152 of the support tray 150. Moreover, end 171 of mounting assembly 170 has a pair of opposing walls 312 and 314 that engage with and constrains a pair of walls formed in the square or rectangular profile 260 of mounting feature 250. Additionally mounting assembly 170 includes a pin 320 that is captured at a first end 322 for rotation in the fixed member 300. Pin 320 has a second end 324 that is threaded to threadingly engage a threaded shaft 326 formed in movable member 302.
  • rotation of pin 320 moves movable member 302 farther away or closer to fixed member 300.
  • the support bed 106 that is attached to mounting assembly 170 may be adjusted to ensure flatness of the support bed 106.
  • mounting assembly 172 is illustrated in a perspective view in FIG. 8A and in a cross-sectional view in FIG. 8B.
  • Mounting assembly 172 includes a fixed member 400 fixedly mounted to the support tray 150 and a movable member 402 slidably mounted to the support tray 150.
  • Fixed member 400 includes a pair of mounting apertures 404 and 406.
  • Mounting apertures 404 and 406 are configured to receive fasteners such as screws and the like to securely attach fixed member 400 to the support tray 150.
  • fixed member 400 is attached to side support bracket 154 using the mounting apertures 404 and 406.
  • Movable member 402 is slidably mounted to the support tray 150 via a pair of slots 408 and 410. Slots 408 and 410 are configured to receive fasteners such as screws and the like to slidably attach movable member 402 to the side support bracket 154 of the support tray 150. Moreover, end 173 of mounting assembly 172 has a flat mounting surface 412 that engages with mounting feature 254. Additionally mounting assembly 172 includes a pin 420 that is captured at a first end 422 for rotation in the fixed member 400. Pin 320 has a second end 324 that is threaded to threadingly engage a threaded shaft 426 formed in movable member 402. Accordingly, in operation, rotation of pin 420 moves movable member 402 farther away or closer to fixed member 400. Thus, by operation or rotation of pin 420 the support bed 106 that is attached to mounting assembly
  • 172 may be adjusted to ensure flatness of the support bed 106.
  • Mounting assembly 174 includes a fixed member 500 fixedly mounted to the support tray 150.
  • Fixed member 500 includes a pair of mounting apertures 504 and 506.
  • Mounting apertures 504 and 506 are configured to receive fasteners such as screws and the like to securely attach fixed member 500 to the support tray 150.
  • fixed member 500 is attached to cross support bracket 162 using the mounting apertures 504 and 506.
  • a hemispherical surface or bowl-shaped surface 512 is formed therein.
  • Bowl shaped surface 512 is configured to engage with mounting feature 252. Accordingly, bowl shaped surface 512 and mounting feature 252 allows for movement of the support bed 106 in both the x and y directions but not in the z direction.
  • the insulation sheet 180 is first placed on the support tray 150 thereafter the heating member 190 is placed on insulation sheet 180.
  • the support bed 106 is placed adjacent and on top of heating member 190.
  • build plate 110 is located on support bed 106 and is attracted thereto by magnetic forces created by magnets 212 to maintain flatness of the build plate.
  • the support bed 106 allows the build plate 110 to lift off the surface 108 of the support bed 106 with minimal movement of the build plate 110 along the x-y axis
  • design of support bed 106 as described above provides straightness and flatness across a wide range of temperatures
  • the three-point mounting and leveling features provided by the mounting assemblies 170, 172 and 174 allow for controlled slip of the build plate 110 along the x-y axis while maintaining positional repeatability and allowing for thermal expansion and minimizing distortion of the build plate 110.
  • the above-described assembly provides a less complex, less costly and more reliable method to secure the build plate 110 to the support bed 106.
  • the magnetic forces produced by magnets 212 will minimize movement of the build plate 110 in the x-y direction.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)

Abstract

Une imprimante tridimensionnelle comporte un plateau de support fixé de façon amovible sur un cadre de l'imprimante tridimensionnelle et conçu pour se déplacer dans une direction Z. Une feuille d'isolation est disposée adjacente au plateau de support, et supportée par ce dernier. Un élément chauffant est disposé adjacent à la feuille d'isolation, et supporté par cette dernière. Un lit de support est disposé adjacent à l'élément chauffant et supporté par le plateau de support, et une plaque de construction ferromagnétique est disposée adjacente au lit de support, et supportée par ce dernier. La plaque de construction ferromagnétique comporte une paire de languettes de positionnement qui positionnent et alignent la plaque de construction ferromagnétique sur le lit de support. Le lit de support comporte une pluralité d'aimants qui produisent une force magnétique pour maintenir la plaque de construction ferromagnétique contre une surface du lit de support.
PCT/US2022/079599 2021-11-12 2022-11-10 Lit de support magnétique pour une imprimante 3d Ceased WO2023086860A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202163278733P 2021-11-12 2021-11-12
US63/278,733 2021-11-12

Publications (1)

Publication Number Publication Date
WO2023086860A1 true WO2023086860A1 (fr) 2023-05-19

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ID=86336618

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Application Number Title Priority Date Filing Date
PCT/US2022/079599 Ceased WO2023086860A1 (fr) 2021-11-12 2022-11-10 Lit de support magnétique pour une imprimante 3d

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WO (1) WO2023086860A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119217715A (zh) * 2024-08-13 2024-12-31 上海远铸智能技术有限公司 一种3d打印机热床及3d打印机

Citations (6)

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Publication number Priority date Publication date Assignee Title
US20040204515A1 (en) * 2003-01-17 2004-10-14 Edita Rojasova Chemical resistant epoxy composition
US20150273582A1 (en) * 2014-04-01 2015-10-01 Stratasys, Inc. System and Method for Printing Three-Dimensional Parts with Magnetic Support Media
US20160214322A1 (en) * 2013-03-12 2016-07-28 Orange Maker LLC 3D Printing Using Spiral Buildup
US20180133956A1 (en) * 2015-07-16 2018-05-17 Velo3D, Inc. Material-fall three-dimensional printing
US20190030806A1 (en) * 2017-07-27 2019-01-31 Robert Bosch Tool Corporation Removable build plate with evenly heated build surface of 3d printer
US20200086569A1 (en) * 2018-09-14 2020-03-19 Makerbot Industries, Llc Removable build plate for three-dimensional printers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040204515A1 (en) * 2003-01-17 2004-10-14 Edita Rojasova Chemical resistant epoxy composition
US20160214322A1 (en) * 2013-03-12 2016-07-28 Orange Maker LLC 3D Printing Using Spiral Buildup
US20150273582A1 (en) * 2014-04-01 2015-10-01 Stratasys, Inc. System and Method for Printing Three-Dimensional Parts with Magnetic Support Media
US20180133956A1 (en) * 2015-07-16 2018-05-17 Velo3D, Inc. Material-fall three-dimensional printing
US20190030806A1 (en) * 2017-07-27 2019-01-31 Robert Bosch Tool Corporation Removable build plate with evenly heated build surface of 3d printer
US20200086569A1 (en) * 2018-09-14 2020-03-19 Makerbot Industries, Llc Removable build plate for three-dimensional printers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119217715A (zh) * 2024-08-13 2024-12-31 上海远铸智能技术有限公司 一种3d打印机热床及3d打印机

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