EP3856495A1 - Procédé de commande de processus d'impression 3d - Google Patents

Procédé de commande de processus d'impression 3d

Info

Publication number
EP3856495A1
EP3856495A1 EP19908226.4A EP19908226A EP3856495A1 EP 3856495 A1 EP3856495 A1 EP 3856495A1 EP 19908226 A EP19908226 A EP 19908226A EP 3856495 A1 EP3856495 A1 EP 3856495A1
Authority
EP
European Patent Office
Prior art keywords
printing
container
printer
methods according
controller
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.)
Withdrawn
Application number
EP19908226.4A
Other languages
German (de)
English (en)
Other versions
EP3856495A4 (fr
Inventor
Krzysztof WILK
Szymon Kostrzewa
Kamil Nowoczek
Krzysztof Roguski
Mateusz Wróbel
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.)
3DGence Sp zoo
Original Assignee
3DGence Sp zoo
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
Priority claimed from PL427184A external-priority patent/PL427184A1/pl
Priority claimed from PL427183A external-priority patent/PL239036B1/pl
Application filed by 3DGence Sp zoo filed Critical 3DGence Sp zoo
Publication of EP3856495A1 publication Critical patent/EP3856495A1/fr
Publication of EP3856495A4 publication Critical patent/EP3856495A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE 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
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • 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
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE 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
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • H04L9/0877—Generation of secret information including derivation or calculation of cryptographic keys or passwords using additional device, e.g. trusted platform module [TPM], smartcard, USB or hardware security module [HSM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/80—Wireless
    • H04L2209/805—Lightweight hardware, e.g. radio-frequency identification [RFID] or sensor

Definitions

  • the subject of the present invention is a method for controlling a three-dimensional (3D) printing process by a fused filament fabrication technology, and, more particularly, the present invention relates to methods for delivering and communicating spatial printing parameters for specific 3D printing materials.
  • a process of three-dimensional (3D) printing by a fused filament fabrication technology various types of materials (substrates) may be utilized for 3D printing with different physicochemical properties.
  • the physicochemical properties of a material constitute important information required by a 3D printer, for successfully printing a desired physical model.
  • Such physicochemical properties reflecting a spatial model and defining the specific printing parameters are saved in the form of unique machine codes, which control the printing process.
  • machine codes are produced by a spatial printer controller, which may exist within the printer or an external computer with dedicated software is used as a controller that is operably connected to the 3D printer.
  • the course of the printing process, visual quality and mechanical properties of the printed model depend on the parameters of the spatial printing process, which are different for each type of printing material.
  • Preparation of the printing parameters is a long-term activity that requires considerable effort, time, and monetary resources - and, therefore, is highly confidential and proprietary by the developers of such parameters.
  • the applicable set of printing parameters are often supplied along with the printing material, and often also with software that is configured to generate the necessary machine code based on the printing parameters.
  • the software and printing parameters are susceptible to being reverse engineered by competitors or other parties, which compromises the confidential and proprietary nature of the specific printing parameters (which, as mentioned above, required considerable effort, time, and monetary resources).
  • printing materials may be provided on reels that contain a radio-frequency identification (RFID) tag, which is configured to communicate certain limited and decrypted forms of the printing operational parameters to a 3D spatial printer.
  • RFID radio-frequency identification
  • the object of the invention is proposing a method for controlling a three-dimensional (3D) printing process consisting of delivering and communicating printing parameters for a specific 3D printing materials, in a manner that preserves the confidential and proprietary nature of such parameters.
  • a method for controlling a three-dimensional (3D) printing process comprising preparation of a file with applicable specifications for a spatial model and application of a digital tag containing a data determining at least part of printing parameters to a container that holds a printing material, and after the container is inserted into a 3D printer, the data are read and extracted to a controller which is configured to control the printing process on the 3D printer, whereby machine codes are generated, based on the received data with printing parameters and, preferably based on the spatial model specifications, to control the printing process of a physical model.
  • the method comprises the following steps:
  • the controller is housed within the 3D printer or within an external computer that is operably connected to the 3D printer via external server.
  • a passive radio identification tag or a microchip may be used as the digital.
  • the container can have the form of a spool, a cartridge, a handle or a tank.
  • a method for controlling a three-dimensional (3D) printing process comprising preparation of a file with applicable specifications for a spatial model, and determination of a data of at least part of printing parameters, and after a container that holds a printing material with a digital tag applied on it is inserted into a 3D printer, the data are read and extracted to a controller which is configured to control a printing process on the 3D printer, whereby machine codes are generated based on the received data with printing parameters and, preferably based on the spatial model specifications, to control the printing process of a physical model.
  • the method comprises the following steps: recording encrypted communication data onto the digital tag, enabling the 3D printer to connect and communicate with an external server; applying the digital tag to the container that holds the printing material; inserting the container into the 3D printer, whereupon the 3D printer communicates with the external server, and then downloads and decrypts the encrypted printing parameters housed within that server; generating in the controller printing machine codes for controlling the printing process based on the decrypted printing parameters and, preferably based on the spatial model specifications; printing a physical model based on the generated printing machine code.
  • the controller is housed within the 3D printer or within an external computer that is operably connected to the 3D printer via external server.
  • the digital tag a passive radio identification tag or a microchip is used.
  • Fig. 1 - presents a diagram of controlling a 3D printing process in which a controller housed within a 3D printer is responsible for generating machine codes based upon decrypted printing parameters (derived from a digital tag applied to a container that with printing material) and a printed spatial model.
  • Fig. 2 - presents a diagram of controlling a spatial printing process in which a controller housed within an external computer is responsible for generating machine codes based upon decrypted printing parameters (derived from a digital tag applied to a container with printing material) and a printed spatial model.
  • Fig. 3 - presents is a diagram of controlling a spatial printing process in which printing parameters are downloaded from an external server, such that a controller housed within a 3D printer is able to generate machine codes after decryption of printing parameters received from the server.
  • Fig. 4 - presents a diagram of controlling a spatial printing process in which a controller housed within an external computer is responsible for generating machine codes after receiving decrypted printing parameters from an external server.
  • printing parameters refers to specific parameters and conditions to be used by a 3D printer during operation, which are optimized for the physicochemical properties of the printing material to be used. Examples of such printing parameters may include printing temperatures at both the nozzle and build platform, the build speed, cooling fan speeds, and others.
  • printing materials include PC, PA, PEI, PAEK, ABS, PLA, materials consisting of glass, carbon, or other fibers; materials consisting of wood, metals, ceramics, and other fillings; materials that are conductive, flexible, or soluble; and many other types of specialty and non-standard printing materials.
  • printing parameters are recorded in an ecrypted form onto a digital tag 10, which is configured to be applied onto the container 12 that holds the printing material.
  • the digital tag 10 may be applied to the container 12 via adhesives, magnets, mechanical attachments, or other suitable means.
  • the container with printing material may, for example, include a standard cartridge, a spool reel, or a spool holding the printing material, or other containers that hold printing material that are adapted to be inserted into a 3D printer.
  • the digital tag 10 - which stores the encrypted printing parameters - may consist of a passive radio identification tag or microchip.
  • Other types of encryption may be employed in the present invention. Examples of currently-available technique may include the Data Encryption Standard (DES), TripleDES, RSA, Advanced Encryption Standard (AES), Twofish, or others.
  • DES Data Encryption Standard
  • TripleDES TripleDES
  • RSA Advanced Encryption Standard
  • AES Twofish
  • the printing parameters are decrypted and communicated to a controller 18 of the printer.
  • a file with the numerical description of a spatial model 16 is also communicated to the controller 18, such as through a user interface of the 3D printer.
  • the file with the spatial model 16 includes data and measurements (in a form that may be interpreted by the controller 18) that reflect the desired three-dimensional shape and dimensions of the physical object (the desired physical model 20) to be printed.
  • Printing machine codes based upon the printing parameters and the spatial model 16 are generated in the controller 18. Once the machine code has been generated, the printing process is controlled by means of the controller 18 and the physical model 20 is printed.
  • the printing machine codes are produced within an external computer 22 which is used as the 3D printer controller.
  • the controller 18 generates machine codes, based on the supplied printing parameters and the spatial model 16, is housed within the external computer 22.
  • the external computer 22 is operably connected and configured to communicate with the 3D printer 14, e.g., through hard wire or wireless network connections.
  • the printing parameters are read and extracted from the digital tag 10 that is applied to the container 12, the printing parameters are communicated to the external computer 22, preferably along with a file containing a numerical description of the spatial model 16.
  • the controller 18 housed within the external computer 22 then decrypts the printing parameters and thereafter produces the applicable machine codes, which are then communicated back to the 3D printer 14, and the desired physical model 20 is printed according to the instructions.
  • Fig. 3 presents another embodiment of the present invention, according to which the applicable printing parameters are housed (in an encrypted format) within an external server 24.
  • the term“server” may include a dedicated server (or set of servers) or, alternatively, may include server space within a cloud server platform.
  • a set of communication data are recorded in an encrypted form onto the digital tag 10, which is applied to the container 12 with the printing material.
  • the communication data are configured to enable the 3D printer 14 to connect and communicate with the external server 24.
  • the printer 14 connects with the external server 24 and downloads the applicable printing parameters (which are subsequently read and decrypted by the controller 18 housed within the 3D printer 14).
  • a file with applicable specifications for the spatial model 16 are also provided to the controller 18 (e.g., through a user interface of the 3D printer 14).
  • the controller 18 has the necessary information to then generate the applicable machine codes, which are then used by the 3D printer 14 to print the desired physical model 20
  • Fig. 4 shows another embodiment of the present invention, according to which an external computer 22 may house the controller 18 described herein.
  • an external computer 22 may house the controller 18 described herein.
  • a set of communication data are recorded in an encrypted form onto the digital tag 10 which is applied to the container ⁇ .
  • the printer 14 connects with the external server 24 which transfers the applicable encrypted printing parameters to the external computer 22.
  • the file with spatial model 16 specifications are also provided by server 24 to the external computer 22 (e.g., directly by an operator of the system).
  • the controller 18 housed within the external computer 22 decrypts the printing parameters (preferably, along with the spatial model 16 specifications) to generate the applicable machine codes.
  • the machine codes are then subsequently delivered to the 3D printer 14 via the external server 24, and the physical model 20 is printed on the 3D printer 14.
  • An advantage of the invention is a higher level of protection of confidential and proprietary spatial printing parameters against known solutions.
  • the printing parameters are not embodied within the software that is required to generate machine codes, therefore they do not have to be available to the user when using specific materials.
  • Data stored onto a digital tag can be encrypted with a strong algorithm whose decoder is only housed within a printer controller. These data are only readable using advanced techniques that require irreversible damage to the printer components.
  • reading information from a digital tag and preparing the model for printing may be carried out automatically, which simplifies the operation of the printer and reduces the risk of errors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)

Abstract

Cette invention a pour objet un procédé de commande d'un processus d'impression tridimensionnelle (3D) comprenant la préparation d'un fichier avec des spécifications applicables pour un modèle spatial (16) et l'application d'une étiquette numérique (10) sur un récipient (12) qui contient un matériau d'impression, les paramètres d'impression ou les données de communication permettant la connexion avec un serveur externe étant enregistrés sur ladite étiquette numérique (10). Lorsque le récipient (12) est inséré dans une imprimante 3D (14), les données sont lues et extraites de l'étiquette vers un dispositif de commande (18), des codes machine étant générés sur la base des données reçues afin de commander le processus d'impression d'un modèle physique (20).
EP19908226.4A 2018-09-25 2019-07-28 Procédé de commande de processus d'impression 3d Withdrawn EP3856495A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PL427184A PL427184A1 (pl) 2018-09-25 2018-09-25 Sposób sterowania procesem druku przestrzennego
PL427183A PL239036B1 (pl) 2018-09-25 2018-09-25 Sposób sterowania procesem druku przestrzennego
PCT/PL2019/050042 WO2020145830A1 (fr) 2018-09-25 2019-07-28 Procédé de commande de processus d'impression 3d

Publications (2)

Publication Number Publication Date
EP3856495A1 true EP3856495A1 (fr) 2021-08-04
EP3856495A4 EP3856495A4 (fr) 2022-03-30

Family

ID=71520303

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19908226.4A Withdrawn EP3856495A4 (fr) 2018-09-25 2019-07-28 Procédé de commande de processus d'impression 3d

Country Status (2)

Country Link
EP (1) EP3856495A4 (fr)
WO (1) WO2020145830A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110121476A1 (en) * 2009-11-19 2011-05-26 Stratasys, Inc. Encoded consumable materials and sensor assemblies for use in additive manufacturing systems
WO2013113372A1 (fr) * 2012-01-31 2013-08-08 Hewlett-Packard Development Company, L.P. Techniques d'impression tridimensionnelle
CN103465474A (zh) * 2013-09-05 2013-12-25 珠海天威飞马打印耗材有限公司 打印盒
EP3234709A1 (fr) * 2014-12-17 2017-10-25 SABIC Global Technologies B.V. Identification d'une caractéristique d'un matériau pour fabrication additive
FR3061449B1 (fr) * 2016-12-30 2021-03-19 Viaccess Sa Cartouche et systeme d'impression de pieces tridimensionnelles

Also Published As

Publication number Publication date
WO2020145830A1 (fr) 2020-07-16
EP3856495A4 (fr) 2022-03-30

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