37results about How to "Save printing materials" patented technology

The embodiment of the invention provides a method and a device assisted for 3D printing and a 3D printer. The method comprises the following steps: determining application position, size and direction of support force required for at least one part in an object in the printing process of the object according to an object printing model file; and controlling a noncontact support device to supply action force of the required support force for the at least one part in the printing process according to the application position, the size and the direction of the required support force. The embodiment of the invention provides a scheme assisted for 3D printing.

The embodiment of the invention provides a 3D printing assisting method and device as well as a 3D printer. The method comprises the steps of at least determining the application position and power of a supporting force required by at least one part of an object in the printing process of the object according to a printing model file of the object; and controlling a non-contact supporting device to provide an acting force meeting the requirement for the required supporting force to the at least one part in the printing process according to the application position and power of the required supporting force. The embodiment of the invention provides a 3D printing assisting scheme.

The invention discloses a rock coarse fracture seepage simulation model and a making method. The rock coarse fracture seepage simulation model comprises a fracture main board, a left mounting board, a right mounting board, an upper mounting board and a lower mounting board, the fracture main board is of a cuboid structure, a hydrophobic area is arranged on one side of the cuboid structure, a water gathering area is arranged on the other opposite side, the hydrophobic area is communicated with the water gathering area, the outer side of the hydrophobic area is matched with the left mounting board, and the outer side of the water gathering area is matched with the right mounting board; the upper surface and the lower surface of the cuboid structure are respectively matched with the upper mounting board and the lower mounting board, and a pressure measuring hole communicated with a communicating area between the hydrophobic area and the water gathering area is formed in the upper mounting board. 3D printing technology is adopted to manufacture the fracture main board which is fixed through the upper, lower, left and right mounting boards, and a bolt or a water pressure sensor is mounted on each mounting board, so that the making method of the rock coarse fracture seepage simulation model is simple to make, convenient to experiment and capable of reflecting rock fracture seepage characteristics more really and more accurately.

The invention provides a 3D printing-oriented lightweight modeling system for shell-like components, which belongs to the fields of computer-aided design and industrial design and manufacturing. The lightweight modeling system for shell-like parts oriented to 3D printing simulates the force distribution of the model through thermal diffusion under the given feature constraints and stress conditions, and corresponds the simulated value to the thickness of the model to obtain a preliminary optimization Model. Then, the physical experimental model was obtained by 3D printing, and the engineering force verification of the experimental model was carried out. Furthermore, according to the engineering verification, the degree of thermal diffusion is adjusted through the diffusion parameters, so that the thickness of the optimized model is closer to the actual force requirements. Finally, through the above-mentioned cyclic iteration process, a weight optimization model that meets the force requirements is obtained.

The invention relates to a method and system for obtaining cross-scale 3D printing by using a micro-nano composite periodic structure interference light source generated by multi-beam laser interference technology. It belongs to the improvement of the existing 3D printing method, including: image acquisition data processing module (1), PC control center (2), laser (3), spectroscopic system (4), three-dimensional printing platform (5), printing materials ( 6) and a CCD microscopic imaging system (7). The invention improves the original 3D printing speed and resolution, and at the same time realizes the direct molding of the micro-nano composite structure material of the printed object, which is a fast, large-area and efficient 3D printing technology of the micro-nano composite structure.

The invention discloses a TPMS-based model structure optimization method and device for 3D printing. The method comprises a step of performing finite element analysis on a given model to obtain a stress distribution of the model, a step of defining an adaptive TPMS periodic function according to the geometrical shape of the given model and the stress distribution, a step of initializing a pipelinewidth, generating an internal pipeline according to the TPMS periodic function and the pipeline width, a step of recalculating the stress distribution of the model and judging whether a force requirement is satisfied or not, and generating an entry point on the surface of the model to be an inlet for injecting a material into the pipeline if so, otherwise, optimizing the TPMS periodic function and the pipe width according to a new stress distribution, generating an internal pipeline according to the optimized TPMS periodic function and the pipe width, and performing the step repeatedly untilthe stress distribution satisfies the force requirements. According to a structure optimized by using the method of the invention, only printing an outer casing and the inner pipeline of the model isneeded, and the effects of save a printing material and saving a printing time are achieved.

The invention discloses a three-dimensional printing structure of a discontinuous columnar curved surface, which comprises an integral frame, a printing frame arranged on the integral frame, a plurality of printing heads are arranged on the printing frame, and a height adjustment component, The horizontal moving assembly and the vertical moving assembly; the height adjustment assembly includes longitudinal guide rails arranged on the overall frame, the horizontal moving assembly includes horizontal guide rails, the bottom of the overall frame is provided with a base, and the horizontal guide rails are attached to the base and parallel to the horizontal thin rail, perpendicular to the longitudinal rail. The vertical moving component includes a vertical slide rail set on the printing frame, and a horizontal thin rail is slidingly connected in the vertical sliding rail, and the print head is mounted on the horizontal thin rail; the printing frame, the printing table, and the horizontal thin rail are equipped with independent driven by the motor. The print frame is a rectangular frame, the longitudinal slide rails are attached to the long sides of the print frame, and the horizontal thin rails are always parallel to the short sides of the print frame. The horizontal thin rails are independent of each other, and the print heads on the same horizontal thin rail are independent of each other.

The invention relates to a 3D printed mechanical bionic auricular cartilage tissue engineering scaffold and a manufacturing method thereof. It uses 3D printing technology to print a personalized auricular cartilage scaffold based on the patient's individual auricular cartilage structure model. Lactone (PLCL) and polycaprolactone (PCL) biodegradable composite material (PLCL-PCL) is printed, the auricular cartilage tissue engineering scaffold without borders, porous and through-holes of the present invention is biocompatible and degradable It has good stability and thermal stability, has a fine and complex three-dimensional structure of auricular cartilage, and has similar mechanical properties to the corresponding anatomical regions of natural human auricular cartilage tissue. It is suitable for the mechanical properties of natural auricular cartilage and can be applied Construction of personalized tissue-engineered auricular cartilage.

The present invention provides a machine vision-based 3D printer broken wire alarm device and alarm method. The 3D printer includes an extruder and a lifting platform. The produced model is set on the lifting platform and below the extruder, and the machine vision-based 3D printer broken wire alarm device includes a camera, and the camera is set on the side of the extruder nozzle. The invention overcomes the need to make changes to the hardware, starts from the idea of ​​software, and detects the broken wire (no material) of the 3D printer based on the principle of machine vision, so as to issue an alarm and suspend printing, so as to remind the staff, save printing materials and promote printing. Purpose of work progress.

The invention discloses a rotating nozzle device, a 3D printer and a printing method. The rotating nozzle device comprises a supporting shaft, a rotating shaft and a nozzle. The supporting shaft is mounted at the bottom of the body of the 3D printer. One end of the rotating shaft is connected with the supporting shaft through a rotating joint, and the other end of the rotating shaft is provided with the nozzle. A driver and a sensor are arranged inside the rotating joint. The sensor is connected with a processor and the driver of the 3D printer. The driver is connected with the rotating joint. According to the rotating nozzle device, the 3D printer and the printing method, the traditional morphological structure of the printing nozzle is broken through, and the problem that the side protruding part of a printed model needs to be supported is solved; printing materials are reduced, printing efficiency is improved, and the integrity of the finally-printed model is guaranteed; convenience is brought to switching of the nozzle directions in the printing process, and the flexibility of the rotating nozzle for printing the 3D model is improved.

The invention relates to the technical field of medical instruments for oral and maxillofacial surgery, in particular to an in-place guide plate applied to multi-segment fibula double-stacked reconstruction of mandible, aiming at solving the problem that the height of the fibula of a single-layer segment after transplantation in the prior art may not be sufficient The technical point of helping the patient to restore the occlusal and masticatory function on the basis of restoring the appearance and appearance in the future is to include a first guide plate and a second guide plate, the first guide plate is located above the second guide plate, and the first guide plate is located above the second guide plate. The inner side of the plate and the second guide plate is provided with an arc-shaped groove for the fibula cut section to be placed after double stacking, the arc-shaped groove is closely fitted with the surface of the fibula, and the first guide plate and the second guide plate are symmetrically arranged There are retaining holes. The present invention completes the mandibular reconstruction operation through the digitally designed guide plate, which is more perfect in appearance and more ideal in function.