CN109291431A - A kind of FDM printer failure monitoring system - Google Patents
A kind of FDM printer failure monitoring system Download PDFInfo
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- CN109291431A CN109291431A CN201811267106.2A CN201811267106A CN109291431A CN 109291431 A CN109291431 A CN 109291431A CN 201811267106 A CN201811267106 A CN 201811267106A CN 109291431 A CN109291431 A CN 109291431A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 38
- 238000012545 processing Methods 0.000 claims abstract description 80
- 238000007639 printing Methods 0.000 claims description 59
- 238000004140 cleaning Methods 0.000 claims description 15
- 238000005286 illumination Methods 0.000 claims description 7
- 239000000284 extract Substances 0.000 claims description 5
- 230000010365 information processing Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 239000007921 spray Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 241000984642 Cura Species 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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- 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
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
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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)
- Accessory Devices And Overall Control Thereof (AREA)
Abstract
The invention discloses a kind of FDM printer failure monitoring systems, including computer control module, FDM printer, image capture module, image processing module, lighting module, feeding monitoring module, fault alarm module, mobile terminal module.Feeding monitoring module real-time monitoring feeding speed, image capture module send digital picture to image processing module；Image processing module handles image information.Computer control module sends current virtual to image processing module and prints top view information.Image processing module sends order to fault alarm module and computer control module according to image information comparison result.Computer control module orders based on the received to FDM printer and sends operational order.The system is monitored alarm mainly for similar phenomenons such as winged silk, dislocation, the plugs occurred in print procedure, to improve the intelligent level of FDM, saves printed material, reduces personnel labour and time, improve the service life of printer.
Description
Technical field
The present invention relates to 3D printing field, in particular to a kind of FDM printer failure monitoring system.
Background technique
Fused Deposition Modeling (FDM, Fused Deposition Modeling) is as a kind of current most widely used 3D
Printing shaping technology has many advantages, such as that printing is at low cost, printing precision is high, is suitable for a variety of printed materials.But due to printing material
The storage of material is improper, printer motor bearings is unstable, printing head heating rod poor contact and upper computer software parameter
The reasons such as mistake are set, causes spray head blocking, fracture of wire, fly silk, model inconsistent phenomenon.After staff leaves scene, once
The above problem is encountered, not only model printing failure but also waste printed material, or even printer hardware is caused to damage.
The method of current existing some FDM printer failure monitoring systems is to rely on the solution of people.Pass through net
Network monitors to obtain temperature, speed etc. state parameter and the at that time video or picture of print state, artificially judges whether
Now printing is abnormal, if print fault occurs, carry out it is long-range send instruction, instruction is received by the transceiver module of printer side and will
Instruction is sent to printer, to terminate printing.The solution to a certain extent can to avoid a large amount of waste of material, but
Be that there are still problems: the discovery and processing of print fault are more than 24 hours for 3D printer dependent on specific executor
Working condition, people are difficult to accomplish constantly to capture and handle.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of FDM printer failure monitoring systems, including computer control
Molding block (1), FDM printer (2), image capture module (3), image processing module (4), fault alarm module (5), illumination mould
Block (7) and feeding monitoring module (8)；
Wherein, the computer control module (1) and FDM printer (2), feeding monitoring module (8), image processing module
(4) it connects；
Described image acquisition module (3) is connect with image processing module (4)；
Described image processing module (4) is connected with lighting module (7), fault alarm module (5) respectively；
The lighting module (7) is used to provide soft light when carrying out Image Acquisition for image capture module (3)；
Described image acquisition module (3) is sent to image procossing by the practical top view digital picture of printing objects for acquisition
Module (4), image processing module (4) carries out image gray processing processing after receiving digital picture, and compares gray value；
Described image processing module (4) sends alarm command to fault alarm module (5) according to Image Information Processing result,
The order of starting illumination is sent to lighting module (7) and the order of acquisition image is sent to image capture module (3)；
The computer control module (1) is used to send operational order to FDM printer (2)；
The computer control module (1) is also used to the currently quilt that by printing objects model will obtain after slicing treatment
The virtual top view of printing objects is sent to image processing module (4)；
The feeding monitoring module (8) is used to monitor in real time the charging feelings of the printer head (24) of FDM printer (2)
Condition.
The shooting environmental of described image acquisition module (3) provides soft light by lighting module (7)；
The acquisition focal length of described image acquisition module (3) guarantees the print platform of FDM printer (2) in acquired image
(21) accounting obtains institute's printing objects and print platform optimal imaging effect for 2/3rds of whole image with this, is convenient for
Gray processing processing.
The print platform (21) of find a view plane and FDM printer (2) of described image acquisition module (3) is for printing objects
Plane it is parallel.
The X-axis of printing head (24) plane of movement of the FDM printer (2) at the bracket of Y-axis boundary be equipped with spray head it is clear
Clean device (22).
The system executes following steps and realizes monitoring:
Step 1, before printing starts, image processing module (4) sends the order of starting illumination to lighting module (7), is shining
The soft light following figure that bright module (7) provides is focused the life of calibration as processing module (4) is sent to image capture module (3)
It enables；
Step 2, initial print image is obtained by image capture module (3), initial print image is sent at image
It manages module and carries out gray processing processing, the position of print platform (21) is identified according to Gray-scale Matching；
Step 3, computer control module (1) is sent to image processing module (4) by the printing height of printing objects model
Or the print time obtained after carrying out carry out slicing treatment with Slice Softwares such as Cura or Slic3r to model obtains according to setting
To the height or time interval for being carried out Image Acquisition by printing objects；
Step 4, start to print, while feeding monitoring module (8) starts real time monitoring charging situation, and charging rate is sent
To computer control module (1), real-time charging rate and the charging rate of model specification are carried out by computer control module (1)
Comparison, if speed is identical, computer control module (1) controls FDM printer (2) and continues print routine, executes step 5；If
Charging rate is inconsistent in continuous 5 seconds, and computer control module (1) sends commands to printer head (24) time-out printing, control
Printer head (24) processed is moved to progress sprayer cleaning at sprayer cleaning device (22), while image capture module (3) acquires
The practical top view of printer model is simultaneously sent to image processing module (4), executes step 6；
Step 5, if current printing progress reaches the height or time interval for the Image Acquisition that step 3 determines, computer control
Molding block (1) sends commands to printer head (24) time-out printing, and control printer head (24) is moved to sprayer cleaning dress
Progress sprayer cleaning at (22) is set, while image capture module (3) acquires the practical top view of printer model and is sent to image
Processing module (4)；
Step 6, computer control module (1) current is printed obtain after slicing treatment by printing objects model
The virtual top view of object is sent to image processing module (4), image processing module (4) compare printer model practical top view with
Virtual top view, performs corresponding processing according to comparing result；
Step 7, step 4~step 6 is repeated, until printing terminates.
Image processing module described in step 6 (4) compares the practical top view and virtual top view of printer model, including such as
Lower step:
Step 6-1, image processing module (4) carry out gray processing processing to the practical top view of printer model, and removal printing is flat
Gray value shared by platform (21) then extracts the average gray of practical top view；
Step 6-2, image processing module (4) carry out gray processing processing to the virtual top view of printer model and extract its gray scale
Average value；
Step 6-3, image processing module (4) calculate the difference of the average gray of practical top view and virtual top view,
If difference is less than preset value, image processing module (4) sends continuation print command and gives computer control module (1), by computer
Control module (1) control FDM printer (2) continues to print；If difference be greater than or equal to preset value, image processing module (4) to
Fault alarm module (5) sends printing and unsuccessfully orders and issue emergency braking FDM printer (2) to computer control module (1)
Order, fault alarm module (5) receives order and sounds the alarm, while sending information to staff's mobile terminal (6),
Staff is notified to return to printing scene and handle.
The feeding monitoring module (8) is set at FDM printer head feed inlet.
The utility model has the advantages that
FDM printer failure monitoring system provided by the invention is by the printing top view of acquisition and current virtual printer model
Top view compares, can be with the carry out breakdown judge of fast accurate, and terminates printing, reduces waste of material.
When carrying out Image Acquisition every time, spray head meeting auto-returned rinsing table carries out cleaning treatment, to improve beating for next step
Precision is printed, the plugging fault rate of spray head is reduced.
FDM printer failure monitoring system may be implemented to monitor in real time, carry out breakdown judge automatically, participate in without personnel,
When only failure occurs, information is sent to staff's mobile terminal, staff is notified to return to printing scene and handle.To holding
The degree of dependence of passerby is smaller.
Detailed description of the invention
The present invention is done with reference to the accompanying drawings and detailed description and is further illustrated, it is of the invention above-mentioned or
Otherwise advantage will become apparent.
Fig. 1 is the FDM printer failure monitoring system structural model figure the present invention is based on image recognition；
Fig. 2 is the FDM printer failure monitoring system work flow diagram the present invention is based on image recognition；
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and embodiments.
Referring to Fig.1-2, Fig. 1 is that the present invention is based on the FDM printer failure monitoring system structural model figure of image recognition (figures
In 1, the meaning of each label is as follows: 1: computer control module；2:FDM printer；21: print platform；22: cleaning device 23:
Silk material；24: spray head；3: image capture module；4: image processing module；5: alarm module；6: mobile terminal；7: lighting module；
8: feeding monitoring module；Fig. 2 is the FDM printer failure monitoring system work flow diagram the present invention is based on image recognition.
Shown in Fig. 2, the FDM printer failure monitoring system monitoring printing process based on image recognition is as follows:
(1) before printing starts, image processing module 4 sends the order of starting illumination to lighting module 7, in lighting module 7
The soft light following figure provided is focused calibration as processing module 4 sends order to image capture module 3；
(2) initial print image and gray processing are obtained by image capture module 3, identifies that printing is flat according to Gray-scale Matching
21 position of platform；
(3) computer control module 1 is sent to image processing module 4 by the printing height of printing objects model or to model
The print time that model obtains after carrying out slicing treatment with Slice Softwares such as Cura or Slic3r, such as selection is according to height to being beaten
It prints object and carries out Image Acquisition, it is proposed that be set as object 1 cm height of every printing and carry out an Image Acquisition；Such as selection according to when
Between carry out Image Acquisition to by printing objects, it is proposed that be set as every printing Image Acquisition of progress in 30 minutes；Such as by printed matter
Body is complex, can take the circumstances into consideration to improve acquisition picture frequency；
(4) start to print, while feeding monitoring module 8 starts real time monitoring charging situation, and charging rate is sent to meter
Calculation machine control module 1 is compared the charging rate of real-time charging rate and model specification by computer control module 1, if
Speed is identical, then computer control module 1 controls the continuation print routine of FDM printer 2, executes (5)；If being fed in continuous 5 seconds
Speed is inconsistent, and computer control module 1 sends commands to printer head time-out printing, and control printer head is moved to spray
Sprayer cleaning is carried out at head cleaning apparatus, while image capture module 3 acquires the virtual top view of printer model and is sent to figure
As processing module 4, execute (6)；
(5) if current printing progress reaches the height or time interval of step (3) setting, computer control module 1 is sent
It orders and gives printer head 24 time-out printing, control printer head is moved to cleaning device 22 and carries out sprayer cleaning, schemes simultaneously
As acquisition module 3 acquires the practical top view of printer model and is sent to image processing module 4；
(6) it sends from the practical top view progress gray processing of printer model of image capture module 3 for 4 pairs of image processing module
Reason removes gray value shared by print platform 21, then extracts the average gray of practical top view；Image processing module 4 is right
It sends and carries out gray processing processing from the virtual top view of printer model of computer control module 1 and extract its average gray；Figure
As processing module 4 calculates the difference of the average gray of practical top view and virtual top view, difference and preset value are carried out pair
Than according to experiment, under normal circumstances, default settings are 8 or less relatively reasonable, might have subtle flaw under the value, but not
Overall aesthetic degree is influenced, when the value reaches 16, article just has more apparent flaw；If difference is less than preset value, image procossing
Module 4 sends the order for continuing printing to computer control module 1；If difference is greater than or equal to preset value, image processing module 4
The order that printing unsuccessfully orders and sends stopping printing to computer control module 1, fault alarm are sent to fault alarm module 5
Module 5 sounds the alarm and sends information to staff's mobile terminal 6, and staff is notified to return to scene and handle.Under
Face in conjunction with the accompanying drawings and embodiments further illustrates technical solution of the present invention.
The present invention is original, innovative product with independent intellectual property rights.A kind of FDM printer provided by the present invention
Failure monitoring system, which has good benefit to the intelligence, automation level for improving FDM, if can use on a large scale,
Printed material can be saved, personnel labour and time is reduced, improves the service life of printer.
The present invention provides a kind of FDM printer failure monitoring systems, implement the method and approach of the technical solution
Very much, the above is only a preferred embodiment of the present invention, it is noted that those skilled in the art are come
It says, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.All undefined components in this embodiment can be implemented in the prior art.
Claims (7)
1. a kind of FDM printer failure monitoring system, which is characterized in that including computer control module (1), FDM printer
(2), image capture module (3), image processing module (4), fault alarm module (5), lighting module (7) and feeding monitoring module
(8)；
Wherein, the computer control module (1) and FDM printer (2), feeding monitoring module (8), image processing module (4)
Connection；
Described image acquisition module (3) is connect with image processing module (4)；
Described image processing module (4) is connected with lighting module (7), fault alarm module (5) respectively；
The lighting module (7) is used to provide soft light when carrying out Image Acquisition for image capture module (3)；
Described image acquisition module (3) is sent to image processing module by the practical top view digital picture of printing objects for acquisition
(4), image processing module (4) carries out image gray processing processing after receiving digital picture, and compares gray value；
Described image processing module (4) sends alarm command, Xiang Zhao to fault alarm module (5) according to Image Information Processing result
Bright module (7) sends the order of starting illumination and sends the order of acquisition image to image capture module (3)；
The computer control module (1) is used to send operational order to FDM printer (2)；
The computer control module (1) is also used to current be printed obtain after slicing treatment by printing objects model
The virtual top view of object is sent to image processing module (4)；
The feeding monitoring module (8) is used to monitor in real time the charging situation of the printing head (24) of FDM printer (2).
2. the system as claimed in claim 1, which is characterized in that the acquisition focal length guarantee of described image acquisition module (3) is adopted
Integrate print platform (21) accounting of FDM printer (2) in image as 2/3rds of whole image.
3. system as claimed in claim 2, which is characterized in that find a view plane and the FDM printing of described image acquisition module (3)
Plane of the print platform (21) of machine (2) for printing objects is parallel.
4. system as claimed in claim 3, which is characterized in that printer head (24) movement of the FDM printer (2) is flat
Sprayer cleaning device (22) are equipped at the X-axis and Y-axis boundary bracket in face.
5. system as claimed in claim 4, which is characterized in that the system executes following steps and realizes monitoring:
Step 1, before printing starts, image processing module (4) sends the order of starting illumination to lighting module (7), in illumination mould
The soft light following figure that block (7) provides is focused the order of calibration as processing module (4) is sent to image capture module (3)；
Step 2, initial print image is obtained by image capture module (3), initial print image is sent to image procossing mould
Block carries out gray processing processing, and the position of print platform (21) is identified according to Gray-scale Matching；
Step 3, computer control module (1) is sent to image processing module (4) by the printing height of printing objects model or right
Model carries out the print time obtained after slicing treatment, according to setting, obtains to the height for being carried out Image Acquisition by printing objects
Or time interval；
Step 4, start to print, while feeding monitoring module (8) starts real time monitoring charging situation, and charging rate is sent to meter
Calculation machine control module (1) is carried out real-time charging rate and the charging rate of model specification pair by computer control module (1)
Than if speed is identical, computer control module (1) controls FDM and continues print routine, executes step 5；If in continuous 5 seconds into
Expect that speed is inconsistent, computer control module (1) sends commands to printer head (24) time-out printing, controls printer head
(24) progress sprayer cleaning at sprayer cleaning device (22), while the reality of image capture module (3) acquisition printer model are moved to
Border top view is simultaneously sent to image processing module (4), executes step 6；
Step 5, if current printing progress reaches the height or time interval for the Image Acquisition that step 3 determines, computer controls mould
Block (1) sends commands to printer head (24) time-out printing, and control printer head (24) is moved to sprayer cleaning device
(22) sprayer cleaning is carried out at, while image capture module (3) acquires the practical top view of printer model and is sent at image
It manages module (4)；
Step 6, computer control module (1) will be obtained current by printing objects after printing objects model progress slicing treatment
Virtual top view is sent to image processing module (4), and image processing module (4) compares the practical top view of printer model and virtual
Top view is performed corresponding processing according to comparing result；
Step 7, step 4~step 6 is repeated, until printing terminates.
6. system as claimed in claim 5, which is characterized in that image processing module described in step 6 (4) compares printer model
Practical top view and virtual top view, include the following steps:
Step 6-1, image processing module (4) carry out gray processing processing to the practical top view of printer model, remove print platform
(21) then the gray value shared by extracts the average gray of practical top view；
Step 6-2, image processing module (4) carries out gray processing processing to the virtual top view of printer model and to extract its gray scale average
Value；
Step 6-3, image processing module (4) calculates the difference of the average gray of practical top view and virtual top view, if poor
Value is less than preset value, and image processing module (4) sends continuation print command and gives computer control module (1), controlled by computer
Module (1) control FDM printer (2) continues to print；If difference is greater than or equal to preset value, image processing module (4) is to failure
Alarm module (5) sends the life that printing unsuccessfully orders and issues emergency braking FDM printer (2) to computer control module (1)
It enables, fault alarm module (5) receives order and sounds the alarm, while sending information, notice to staff's mobile terminal (6)
Staff returns to printing scene and handles.
7. a kind of FDM printer failure monitoring system as claimed in claim 6, which is characterized in that the feeding monitoring module
(8) it is set at FDM printer head feed inlet.
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| CN109866431A (en) * | 2019-04-04 | 2019-06-11 | 江苏海之风科技有限公司 | A kind of 3D printer real-time monitoring system |
| CN110843208A (en) * | 2019-12-03 | 2020-02-28 | 苏州聚复高分子材料有限公司 | Detection device and method for 3D printer nozzle mechanism |
| CN111444836A (en) * | 2020-03-26 | 2020-07-24 | 广东电网有限责任公司 | On-site double-editing printing device and software system |
| CN111688181A (en) * | 2020-06-04 | 2020-09-22 | 於菟科技(北京)有限公司 | 3D printer, 3D printer fault detection method and device and storage medium |
| CN113199757A (en) * | 2021-05-11 | 2021-08-03 | 广东省珠海市质量计量监督检测所 | 3D printing nozzle capable of detecting and correcting and method for realizing correction printing |
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| CN111444836A (en) * | 2020-03-26 | 2020-07-24 | 广东电网有限责任公司 | On-site double-editing printing device and software system |
| CN111444836B (en) * | 2020-03-26 | 2023-10-17 | 广东电网有限责任公司 | On-site double-editing printing device and software system |
| CN111688181A (en) * | 2020-06-04 | 2020-09-22 | 於菟科技(北京)有限公司 | 3D printer, 3D printer fault detection method and device and storage medium |
| CN113306136A (en) * | 2021-04-20 | 2021-08-27 | 安徽工程大学 | 3D printer stacking confusion alarm system and method based on target detection |
| CN113199757A (en) * | 2021-05-11 | 2021-08-03 | 广东省珠海市质量计量监督检测所 | 3D printing nozzle capable of detecting and correcting and method for realizing correction printing |
| CN116476384A (en) * | 2023-06-01 | 2023-07-25 | 江苏迅捷装具科技有限公司 | Compact 3D printer applying FDM technology |
| CN116476384B (en) * | 2023-06-01 | 2024-03-08 | 江苏迅捷装具科技有限公司 | Compact 3D printer applying FDM technology |
| CN117261237A (en) * | 2023-11-21 | 2023-12-22 | 徐州大业三维科技有限公司 | 3D printer fatigue performance intelligent detection system |
| CN117261237B (en) * | 2023-11-21 | 2024-01-26 | 徐州大业三维科技有限公司 | 3D printer fatigue performance intelligent detection system |
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