CN209738293U - 3D printer print platform automatic calibration structure and 3D printer - Google Patents
3D printer print platform automatic calibration structure and 3D printer Download PDFInfo
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- CN209738293U CN209738293U CN201920457525.6U CN201920457525U CN209738293U CN 209738293 U CN209738293 U CN 209738293U CN 201920457525 U CN201920457525 U CN 201920457525U CN 209738293 U CN209738293 U CN 209738293U
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- 239000000523 sample Substances 0.000 claims abstract description 81
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- 230000007547 defect Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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Abstract
the embodiment of the application provides a 3D printer print platform automatic calibration structure and 3D printer. The automatic calibration structure of the printing platform comprises a connecting part, a support frame body of a sliding space and a slidable pressure rod. The slidable pressure rod is arranged in the sliding space in a sliding mode and comprises a first end and a second end, and the first end is provided with a probe rod used for touching the surface of the printing platform; the slidable pressure rod is arranged at an extending position where the probe rod extends out of the 3D printer shell and a retracting position where the probe rod retracts inside the 3D printer shell; the second end extends outside the 3D printer housing. The first elastic piece is sleeved at the upper end of the probe rod and matched with the first end of the slidable pressure rod, and the probe rod can move along the axial direction of the slidable pressure rod when the slidable pressure rod is located at the extending position. The first position switch and the second position switch are arranged beside the moving path of the probe rod. The switch plectrum is configured on the probe rod and is matched with the first position switch and/or the second position switch. This application need not to pull down at 3D printer during operation.
Description
Technical Field
The application relates to the technical field of 3D printers, particularly, relate to a 3D printer print platform automatic calibration structure.
Background
At present, the leveling modes of a printing platform of a 3D printer mainly comprise a manual mode and an automatic mode, the manual mode needs manual adjustment, and the adjustment is complex and inaccurate; the existing automatic leveling modes mainly comprise: 1. a semi-automatic leveling structure; 2. the detachable automatic leveling device structure; 3. the electromagnetic induction type leveling structure is automatically leveled by relying on the Hall induction principle.
For a semi-automatic leveling structure, manual and manual auxiliary leveling is still needed, and the defects of complexity and complexity still exist in the operation; the detachable automatic leveling device structure has the defects that when the automatic leveling device structure needs to be leveled automatically, the leveling device is installed on a printing platform, when equipment works, the leveling device needs to be detached, the operation is complex, no protection and fool-proof measures are provided, and when the device is forgotten to be detached after printing is started, the equipment can be damaged; for an electromagnetic induction type leveling structure, the defects are lack of stability and uncontrollable positioning precision.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide an automatic calibration structure that can set up on the print platform of 3D printer, and need not to pull down when 3D printer work.
The embodiment of the application provides an automatic calibration structure of a 3D printer printing platform, which comprises a support frame body, a connecting part and a sliding space, wherein the connecting part is configured with the 3D printer and is fixedly connected with the 3D printer;
The slidable pressure rod is arranged in the sliding space in a sliding mode and comprises a first end and a second end, and the first end is provided with a probe rod used for touching the surface of the printing platform; the slidable pressure rod is configured to be arranged at an extending position where the probe rod extends out of the 3D printer shell and a contracting position where the probe rod contracts in the 3D printer shell; the second end extends outside the 3D printer housing;
The first elastic piece is sleeved at the upper end of the probe rod and matched with the first end of the slidable pressure rod, and the probe rod can move along the axial direction of the slidable pressure rod when the slidable pressure rod is positioned at the extending position;
The first position switch and the second position switch are arranged beside the moving path of the probe rod;
And the switch shifting piece is arranged on the probe rod and is matched with the first position switch and/or the second position switch.
In a possible implementation manner, a clamping protrusion is arranged on one side surface of the slidable pressure rod, and a bayonet which is used for adapting the clamping protrusion when the probe rod is located at the extending position and a pressing block which is used for pushing the clamping protrusion out of the bayonet are arranged on the support frame body; and a second elastic piece is sleeved on the middle lower part of the probe rod, and the lower end of the second elastic piece is abutted to the inner surface of the shell of the 3D printer.
Furthermore, the briquetting pin joint in support the support frame body on, the briquetting with the position of card protruding contact is equipped with touches the arch.
in another possible implementation manner, a clamping groove is formed in one side surface of the slidable pressure rod, and a clamping pin which is matched with the clamping groove when the probe rod is located at the extending position and an electromagnetic switch assembly connected with the clamping pin are arranged on the support frame body; and a third elastic piece is sleeved on the middle lower part of the probe rod, and the lower end of the third elastic piece is abutted against the inner surface of the shell of the 3D printer.
In a possible implementation manner, the electromagnetic switch assembly comprises an electromagnet, a magnetic block connected with the bayonet lock, an extrusion spring connecting the electromagnet and the magnetic block, and a control button electrically connected with the electromagnet and controlling the electromagnet to work.
in a possible implementation manner, a containing groove is formed in the middle-lower part of the other side surface of the slidable pressure rod, and the containing groove is communicated with the first end of the slidable pressure rod;
The upper end of the probe rod penetrates into the accommodating groove, and the top end of the first elastic piece is abutted to the top of the accommodating groove.
in a possible implementation manner, a side surface of the support frame body, which is close to the accommodating groove, is provided with a slot, the length of which extends along the axial direction of the probe rod; the switch plectrum on the probe rod extends to the outside of the slot.
In one possible implementation, the first position switch and the second position switch are both photoelectric switches or travel switches.
In a possible implementation manner, two mounting bosses arranged in the axial direction of the probe rod are arranged on the side surface of the support frame body close to the accommodating groove;
the first position switch and the second position switch are arranged on a circuit board of the 3D printer;
The two mounting bosses are mounted at the side edges of the circuit board.
According to another aspect of the application, a 3D printer adopting the automatic calibration structure of the printing platform is also provided.
The automatic calibration structure in this application includes two kinds of mode of user state and non-user state, and the probe rod stretches out 3D printer shell and is in the extended position during user state, utilizes the switch plectrum on first position switch, second position switch and the probe rod to carry out the measurement of a plurality of position points of print platform. When the leveling device is not in use, the probe rod is retracted inside the shell of the 3D printer, and the work of the 3D printer cannot be affected, so that the 3D printer does not need to be detached during work, and the leveling step is simple to operate.
Drawings
in order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is an exploded structural view of an automatic calibration structure of a 3D printer printing platform according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of the printing platform auto-calibration structure shown in FIG. 1 mounted on a 3D printer;
Figure 3 shows a structural arrangement for configuring the slidable strut in the extended and retracted positions.
Icon: 100-a support frame body; 200-a slidable pressure bar; 300-a first resilient member; 400-a first position switch; 500-second position switch; 600-a switch paddle; 700-a second elastic member; 800-a circuit board; 900-3D printer housing; 101-bayonet; 102-briquetting; 103-touching the bump; 104-bayonet lock; 105-an electromagnet; 106-magnetic block; 107-compression spring; 108-control buttons; 109-slotting; 110-mounting a boss; 201-a first end; 202-a second end; 203-probe rod; 204-convex card; 205-card slot.
Detailed Description
the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
Fig. 1 is an exploded view of an automatic calibration structure of a 3D printer printing platform according to an embodiment of the present application. Fig. 2 is a schematic installation diagram of the printing platform automatic calibration structure shown in fig. 1 installed on a 3D printer. Referring to fig. 1 and 2, the automatic calibration structure of the 3D printer printing platform includes a support frame 100, a slidable pressure bar 200, a first elastic member 300, a first position switch 400, a second position switch 500, and a switch dial 600.
The support frame body 100 is configured with a connection portion fixedly connected with the 3D printer, and a sliding space for accommodating the slidable pressure bar 200 is preset.
The slidable pressure bar 200 is slidably disposed in the sliding space, and includes a first end 201 and a second end 202, and the first end 201 is disposed with a probe 203 for touching the surface of the printing platform. The slidable pressure bar 200 is configured in an extended position in which the probe 203 extends out of the 3D printer housing and a retracted position in which the probe 203 is retracted inside the 3D printer housing. The second end 202 extends outside the 3D printer housing.
The first elastic member 300 is sleeved on the upper end of the probe 203 and is engaged with the first end of the slidable pressure rod 200, so that the probe 203 can move along the axial direction when the slidable pressure rod 200 is located at the extended position.
The first position switch 400 and the second position switch 500 are disposed beside the moving path of the probe 203. And a switch paddle 600 disposed on the probe 203 and cooperating with the first position switch 400 and/or the second position switch 500.
The design idea of the automatic calibration structure of the printing platform in the application is that the automatic calibration structure is installed on a 3D printer, exemplarily, the automatic calibration structure can be installed on a structure frame of an engraving assembly with a spray head in the 3D printer, the automatic calibration structure comprises two working modes, namely a use state and an unused state, when the printing platform of the 3D printer needs to be leveled, a slidable pressure bar 200 is driven to move in a sliding space of a support frame body 100, a probe 203 extends out of a shell of the 3D printer to be located at an extending position, and a plurality of position points of the printing platform are measured by using a first position switch 400, a second position switch 500 and a switch shifting piece 600 on the probe 203; after the leveling step is finished, the slidable pressure rod 200 is reversely driven to move in the sliding space of the support frame body 100, so that the probe 203 is retracted to a retracted position inside the 3D printer housing 900, and if the automatic calibration structure is installed on the structural frame of the engraving assembly, the probe 203 is retracted inside the structural frame of the engraving assembly. Because the probe rod 203 contracts in the inside of the 3D printer shell or the structural frame of the carving component, the work of the 3D printer cannot be influenced, the probe rod does not need to be detached when the 3D printer works, and the leveling step is simple to operate.
In the present application, there are various embodiments in which the slidable pressure bar 200 is disposed in an extended position in which the probe 203 extends out of the 3D printer housing and a retracted position in which the probe 203 is retracted inside the 3D printer housing, and for example, as shown in fig. 1, a bayonet 101 for fitting the bayonet 204 when the probe 203 is in the extended position and a pressing block 102 for pushing out the bayonet 204 from the bayonet 101 are provided on one side surface of the slidable pressure bar 200, and the supporting frame 100 is provided with a locking protrusion 204. The middle-lower part of the probe 203 is sleeved with a second elastic member 700, and the lower end of the second elastic member 700 abuts against the inner surface of the 3D printer housing.
In the implementation process, the second end of the slidable pressure rod 200 is pressed, the first end of the slidable pressure rod 200 acts on the probe 203, after the probe 203 moves to a predetermined position, the clamping protrusion 204 on the slidable pressure rod 200 is just embedded into the bayonet 101 on the support frame body 100, and the slidable pressure rod 200 is limited at the extending position. After the leveling step is finished, the pressing block 102 presses the locking protrusion 204, so that the locking protrusion 204 is reset in the sliding space of the support frame body 100, and the slidable pressing rod 200 is reset to the retracted position under the elastic action of the second elastic member.
in a possible implementation manner, the side of the slidable pressure rod 200 where the clamping protrusion 204 is arranged is provided with a groove, the clamping protrusion 204 may include a wedge-shaped block and a spring, the tip of the wedge-shaped block is rotatably connected in the groove, and the thick end of the wedge-shaped block is connected in the groove through the spring. When the slidable pressure lever 200 is at the retracted position, the spring is in a compressed state, and when the slidable pressure lever 200 is at the extended position, the thick end of the wedge-shaped block is clamped in the bayonet 101 of the support frame body 100 under the elastic force of the spring, and the slidable pressure lever 200 is limited at the extended position by the blocking of the bayonet 101.
It should be noted that the wedge-shaped block adopted in the structure of the snap-in projection 204 is only an example, and the application does not specifically limit the corresponding structure of the snap-in projection 204 for being snapped into the bayonet 101 of the support frame 100, and any structure that can extend into the bayonet 101 of the support frame 100 under the action of a spring and limit the slidable pressure rod 200 to the extended position falls within the scope of the application.
after the protrusion 204 is pressed into the sliding space of the support rod, the slidable pressure rod 200 is returned to the retracted position by the elasticity of the second elastic member. In order to make the locking protrusion 204 more easily pressed, in one possible implementation, the pressing block 102 is provided with a touching protrusion 103 at a position where the pressing block 102 contacts the locking protrusion 204, and the pressing block 102 is pivotally connected to the support frame 100.
as another possible implementation manner, in order to realize that the slidable pressure bar 200 is configured in the extended position and the retracted position, as shown in fig. 3, a clamping groove 205 is provided on one side surface of the slidable pressure bar 200, and the support frame body 100 is provided with a detent 104 for matching the clamping groove 205 when the probe 203 is located in the extended position, and an electromagnetic switch assembly connected to the detent 104. Illustratively, the axis of detent 104 is perpendicular to the axis of slidable strut 200. The middle lower part of probe 203 is established the third elastic component, and third elastic component lower extreme and 3D printer housing internal surface butt.
In the present application, the third elastic member and the second elastic member are exemplarily configured as springs.
in one possible implementation, the electromagnetic switch assembly includes an electromagnet 105, a magnetic block 106 coupled to the bayonet 104, a compression spring 107 coupling the electromagnet 105 and the magnetic block 106, and a control button 108 electrically coupled to the electromagnet 105 and controlling the operation of the electromagnet 105.
In the implementation process, the second end of the slidable pressure rod 200 is pressed, the first end of the slidable pressure rod 200 acts on the probe 203, when the probe 203 moves to a predetermined position, the position of the detent 205 on the slidable pressure rod 200 is aligned with the position of the detent 104, the detent 104 in the electromagnetic switch assembly is inserted into the detent 205 of the slidable pressure rod 200 under the elastic force of the extrusion spring 107, and the slidable pressure rod 200 is limited to the extended position. After the leveling step is finished, the control button 108 is pressed, the electromagnet 105 is electrified at the moment, the electromagnet 105 attracts the magnetic block 106 to move along the axis of the bayonet lock 104, the bayonet lock 104 is withdrawn from the bayonet lock 205, and the slidable pressure rod 200 is reset to the contraction position under the elastic action of the third elastic element.
it should be noted that the corresponding structures described above for realizing the configuration of the slidable pressure lever 200 in the extended position and the retracted position are only exemplary, and any structure that can configure the slidable pressure lever 200 in the extended position and move the slidable pressure lever 200 to the retracted position after the leveling is finished falls within the protection scope of the present application.
In a possible implementation manner, the middle-lower portion of the other side surface of the slidable pressure rod 200 is provided with an accommodating groove, and the accommodating groove is communicated with the first end of the slidable pressure rod 200. The upper end of the probe rod 203 penetrates into the accommodating groove, and the top end of the first elastic member 300 abuts against the top of the accommodating groove.
In the implementation process, the containing groove is formed in the middle lower portion of the slidable pressure rod 200, the height of the automatic calibration structure can be shortened in the axial direction of the feeler lever 203, and the automatic calibration structure can be adapted to 3D printers of different models by adjusting the height of the containing groove.
In one possible implementation manner, corresponding to the above-mentioned receiving groove structure, the side surface of the support frame 100 close to the receiving groove is provided with a slot 109 having a length extending along the axial direction of the probe rod 203. Switch paddle 600 on probe 203 extends out of the slot. The first position switch 400 and the second position switch 500 are arranged beside the slot, and as an exemplary embodiment, the first position switch 400 and the second position switch 500 are arranged on a circuit board 800 of the 3D printer. The side surface of the support frame 100 close to the receiving groove is provided with two mounting bosses 110 arranged in the axial direction of the probe rod 203. The support frame 100 is mounted at the side of the circuit board 800 by two mounting bosses.
As an exemplary embodiment of the embodiments, the first position switch 400 and the second position switch 500 each employ a photoelectric switch. The photoelectric switch is an active photoelectric detection system type electronic switch adopting pulse modulation, and the used cold light source comprises infrared light, red light, green light, blue light and the like, can rapidly control the state and the action of the switch shifting piece 600 in a non-contact and non-damage manner, and has the advantages of small volume, multiple functions, long service life, high precision, high response speed, long detection distance and strong light, electric and magnetic interference resistance.
it should be noted that the use of photoelectric switches for both the first position switch 400 and the second position switch 500 is merely exemplary, and travel switches may be used for the first position switch 400 and the second position switch 500. Any switching device that is capable of marking the movement of the switch paddle 600 and identifying its position falls within the scope of the present application.
The working principle of the automatic calibration structure of the printing platform in the present application is briefly described below.
1, automatic zeroing: the slidable pressure bar is pressed down, the slidable pressure bar is limited to be in the extending position, the probe rod extends out of the shell of the 3D printer, and the switch shifting piece on the probe rod is located at the first position switch. The state of the first position switch and the state of the second position switch are detected at the moment, if the detection is abnormal, an alarm is given, if the detection is normal, the automatic calibration structure is controlled to move to the printing platform, when the probe rod contacts the printing platform, the probe rod can retract until a switch shifting sheet on the probe rod is located at the second position switch, and the software in communication connection with the automatic calibration structure of the 3D printer automatically records the value at the position as a zero position. And finally, moving the automatic calibration structure to a certain position, and enabling the slidable pressure rod to rebound and stay at the contraction position by acting on the pressing block or opening the control button.
2. Auto-leveling (similar to auto-zeroing, but taking a number of points): firstly, the slidable pressure lever is limited to be in an extending position, the probe rod extends out of the shell of the 3D printer, and the switch poking piece on the probe rod is located at the first position switch. And if the states of the first position switch and the second position switch are abnormal, alarming, and if the states are normal, continuing the next operation. Controlling the automatic calibration structure to move to the printing platform, wherein when the probe rod contacts the printing platform, the probe rod can retract until a switch shifting sheet on the probe rod is located at a second position switch, and software in communication connection with the automatic calibration structure of the 3D printer automatically records the height value of the probe rod; and thirdly, moving the automatic calibration structure to another position, then moving the automatic calibration structure downwards, enabling the probe rod to touch the printing platform, and recording the height value of the position. Fourthly, repeating the third step; moving the automatic calibration structure to a certain position, and enabling the slidable pressure rod to rebound and stay at the contraction position by acting the press block or opening the control button. After the height values of a plurality of points of the printing platform are recorded, the flatness of the printing platform is calculated through a least square algorithm, and the printing platform is automatically compensated.
According to the technical scheme, the automatic calibration structure comprises two working modes of a use state and a non-use state, the feeler lever extends out of the shell of the 3D printer and is located at an extending position in the use state, and the switch poking pieces on the first position switch, the second position switch and the feeler lever are used for measuring a plurality of position points of the printing platform. When the leveling device is not in use, the probe rod is retracted inside the shell of the 3D printer, and the work of the 3D printer cannot be affected, so that the 3D printer does not need to be detached during work, and the leveling step is simple to operate.
According to another aspect of the application, a 3D printer adopting the automatic calibration structure of the printing platform is also provided.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or limited by the phrase "comprising an … …" without further limitation to exclude the presence of other like elements in the process, method, article, or apparatus that comprises such elements.
Claims (10)
1. The utility model provides a 3D printer print platform automatic calibration structure which characterized in that includes:
The support frame body is provided with a connecting part fixedly connected with the 3D printer and a sliding space in advance;
The slidable pressure rod is arranged in the sliding space in a sliding mode and comprises a first end and a second end, and the first end is provided with a probe rod used for touching the surface of the printing platform; the slidable pressure rod is configured to be arranged at an extending position where the probe rod extends out of the 3D printer shell and a contracting position where the probe rod contracts in the 3D printer shell; the second end extends outside the 3D printer housing;
the first elastic piece is sleeved at the upper end of the probe rod and matched with the first end of the slidable pressure rod, and the probe rod can move along the axial direction of the slidable pressure rod when the slidable pressure rod is positioned at the extending position;
The first position switch and the second position switch are arranged beside the moving path of the probe rod;
And the switch shifting piece is arranged on the probe rod and is matched with the first position switch and/or the second position switch.
2. The automatic calibration structure of the printing platform of the 3D printer according to claim 1, wherein a clamping protrusion is arranged on one side surface of the slidable pressure rod, a bayonet which is used for adapting the clamping protrusion when the probe rod is located at the extending position and a pressing block which is used for pushing the clamping protrusion out of the bayonet are arranged on the support frame body; and a second elastic piece is sleeved on the middle lower part of the probe rod, and the lower end of the second elastic piece is abutted to the inner surface of the shell of the 3D printer.
3. The automatic calibration structure of a printing platform of a 3D printer according to claim 2, wherein the pressing block is pivoted on the support frame body, and a contact protrusion is arranged at a position where the pressing block contacts with the clamping protrusion.
4. the automatic calibration structure of the printing platform of the 3D printer according to claim 1, wherein a clamping groove is formed in one side surface of the slidable pressure rod, a clamping pin which is used for matching the clamping groove when the probe rod is located at the extending position and an electromagnetic switch assembly connected with the clamping pin are arranged on the support frame body; and a third elastic piece is sleeved on the middle lower part of the probe rod, and the lower end of the third elastic piece is abutted against the inner surface of the shell of the 3D printer.
5. The automatic calibration structure of the 3D printer printing platform according to claim 4, wherein the electromagnetic switch assembly comprises an electromagnet, a magnetic block connected with the bayonet, a pressing spring connecting the electromagnet and the magnetic block, and a control button electrically connected with the electromagnet and controlling the electromagnet to work.
6. The automatic calibration structure of the printing platform of the 3D printer according to any one of claims 2 to 5, wherein a containing groove is formed in the middle-lower part of the other side surface of the slidable pressure rod, and the containing groove is communicated with the first end of the slidable pressure rod;
The upper end of the probe rod penetrates into the accommodating groove, and the top end of the first elastic piece is abutted to the top of the accommodating groove.
7. The automatic calibration structure of the printing platform of the 3D printer according to claim 6, wherein a slot with a length extending along the axial direction of the probe rod is formed in the side surface of the support frame body close to the accommodating groove; the switch plectrum on the probe rod extends to the outside of the slot.
8. the 3D printer print platform auto-calibration structure of claim 7, wherein the first position switch and the second position switch are both a photoelectric switch or a travel switch.
9. The automatic calibration structure of the printing platform of the 3D printer according to claim 8, wherein two mounting bosses arranged in the axial direction of the probe rod are arranged on the side surface of the support frame body close to the accommodating groove;
The first position switch and the second position switch are arranged on a circuit board of the 3D printer
The two mounting bosses are mounted at the side edges of the circuit board.
10. A 3D printer comprising the 3D printer printing platform auto-calibration structure of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920457525.6U CN209738293U (en) | 2019-04-04 | 2019-04-04 | 3D printer print platform automatic calibration structure and 3D printer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920457525.6U CN209738293U (en) | 2019-04-04 | 2019-04-04 | 3D printer print platform automatic calibration structure and 3D printer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023055986A1 (en) * | 2021-10-02 | 2023-04-06 | 3D Systems, Inc. | Method and apparatus for positional reference in an automated manufacturing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023055986A1 (en) * | 2021-10-02 | 2023-04-06 | 3D Systems, Inc. | Method and apparatus for positional reference in an automated manufacturing system |
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