Abstract: A printing control method, storage medium, and a 3D printing device, applicable in a multi-supply automatic switching extrusion apparatus, includes: if a supply replacement signal is acquired, identifying a target feeding channel corresponding to the supply replacement signal; controlling a supply corresponding to a current feeding channel to return to a set position, and while the supply corresponding to the current feeding channel is returning to the set position, cutting off an end portion of the supply corresponding to the current feeding channel; and controlling an end portion of a supply corresponding to the target feeding channel to move to a printhead of a 3D printer, thus allowing the 3D printer to continue to execute a printing action. The present invention implements the automatic switching of multiple supplies without requiring manual operation and ensures that blocking and jamming of a supply are avoided when the supply is used again.

Abstract: A printing consumable conveyor and a 3D printer are provided. The printing consumable conveyor includes a discharging channel, at least two feeding channels, a pushing apparatus, and a cutting apparatus. The at least two feeding channels are each in communication with the discharging channel, and the pushing apparatus is arranged on the feeding channels. The pushing apparatus is configured to drive a consumable in at least one of the feeding channels to advance into the discharging channel, or to drive a consumable in at least one of the feeding channels to retreat. The cutting apparatus is disposed on the discharging channel, and the cutting apparatus is configured to cut the consumable when the pushing apparatus drives the consumable to retreat to a set position. With the arrangement of the pushing apparatus, at least one of at least two consumables can be driven to be discharged or returned.

Abstract: A printing control method, a storage medium and a photocuring printer are provided. Through the method, the automatic leveling process for a photocuring printer is implemented without involving a manual operation so as to implement the automatic leveling for a photocuring printer while ensuring the printing quality, and the molding platform is controlled to move towards the resin vat by a first preset distance, which prevents errors of the system leveling result caused by the assembly error of mechanical structure so as to ensure the molding platform to fit evenly with the resin vat to meet the requirement of firm bonding of a cured printing material to the molding platform, which is conducive to improving the printing success rate of a model.

Abstract: A cantilever assembly and a rapid prototyping device are provided. A force sensor is arranged on a cantilever body to detect a degree of deformation in a process of the cantilever pulling a model for release, so as to determine whether a printing is successful or not, thereby avoiding the problem of affecting light transmission caused by a sensing member arranged between a display screen and a release liner.

Abstract: A remaining printing material measurement method, and an additive manufacturing apparatus are provided. The remaining printing material measurement method is applied to the additive manufacturing apparatus. The measurement method allows for determining whether the remaining printing material in a resin vat is enough to complete the printing of a model to be printed before printing or during printing, which is beneficial to promote a user to add the printing material when the printing material in the resin vat is insufficient, so as to avoid printing delay or interruption caused by not adding printing materials in time and greatly increase the operation efficiency.

Abstract: A liquid level measurement circuit includes: a probe, a reference electrical signal module and a potential conversion module, where the probe extends into a liquid level accommodation body, and the liquid level accommodation body accommodates a measurement liquid module. If the liquid level of said liquid is lower than a preset liquid level, a positive electrode conductor and/or a negative electrode conductor are/is not immersed in the measurement liquid, and an output end of the potential conversion module outputs a first electrical signal; and if the liquid level of the measurement liquid is not lower than the preset liquid level, the positive electrode conductor and the negative electrode conductor are immersed in the measurement liquid, and the output end of the potential conversion module outputs a second electrical signal. The accuracy of liquid level measurement can be improved.

Abstract: A rapid prototyping device is provided. The rapid prototyping device includes a frame with a substrate. A printing platform is slidably connected to the frame. A moving assembly includes a display screen assembly corresponding to the printing platform. The moving assembly cooperates with the substrate to move to a leveling position relative to the substrate under the pushing of the printing platform. A suspension member is configured to apply a pushing force, which enables the moving assembly to move away from the substrate, to the moving assembly. The positioning assembly is configured to position the moving assembly in the leveling position. The rapid prototyping device is applied to level the rapid prototyping device.

Abstract: A control method, a control system, a readable storage medium, and a 3D printing equipment are provided. The method includes; obtaining at least one parameter of an exposure time of a first-type slice and an exposure time of a third-type slice of a model to be printed; obtaining a quantity of printing layers for a second-type slice of the model to be printed; determining an exposure time of the second-type slice and processing the model to be printed based on the exposure time of the first-type slice, the second-type slice and the third-type slice. By setting an exposure time appropriately, a transition layer is defined for the model to be printed, to facilitate a transition of an exposure time of bottom layers, which enhances connection strength between printing layers and reduces a possibility of model cracking.

Abstract: A release device and a printing apparatus are provided. The release device includes: a fixing member, a release film, a support plate, a soft rubber ring and an exhaust device. The fixing member is arranged to be fixed to the release film. The soft rubber ring is arranged between the release film and the support plate at edges of the release film and the support plate. A cavity is enclosed by the release film, the support plate, and the soft rubber ring together. The support plate is provided with a first through hole through which the exhaust device is in communication with the cavity. In this way, air in the cavity can be exhausted by the exhaust device, the release film can be attached downward to the support plate, a printing model can thus be smoothly released from the release film.

Abstract: A liquid level measurement circuit includes: a probe, a reference electrical signal module and a potential conversion module, where the probe extends into a liquid level accommodation body, and the liquid level accommodation body accommodates a measurement liquid module. If the liquid level of said liquid is lower than a preset liquid level, a positive electrode conductor and/or a negative electrode conductor are/is not immersed in the measurement liquid, and an output end of the potential conversion module outputs a first electrical signal; and if the liquid level of the measurement liquid is not lower than the preset liquid level, the positive electrode conductor and the negative electrode conductor are immersed in the measurement liquid, and the output end of the potential conversion module outputs a second electrical signal. The accuracy of liquid level measurement can be improved.

Abstract: A printing device includes: a base; a printing platform, the printing platform being connected to the base; a printing bracket, the printing bracket being fixed on the base; and a printing head assembly, the printing head assembly being connected to the printing bracket and being arranged above the printing platform, and the printing head assembly including a bearing member, a discharging assembly and an optical assembly. The discharging assembly and the optical assembly are both arranged on the bearing member, the discharging assembly is used for providing printing materials of at least two colors for the printing platform, and the optical assembly is used for curing the printing materials on the printing platform. The printing device can implement three-dimensional color printing.

Abstract: A leveling apparatus for leveling a 3D printer includes a leveling module. The leveling module is used to push or pull back a target component in a first direction under the control of an electrical signal. The leveling module includes a driving assembly and a transmission assembly. A first end of the transmission assembly is connected to the driving assembly, and a second end of the transmission assembly is configured to be directly or indirectly connected to the target component. The driving assembly is connected to the transmission assembly to drive the transmission assembly to move, so as to push and/or pull back the target component in the first direction.

Abstract: A first light transmitting assembly mainly uniformizes light, and a second light transmitting assembly mainly collimates the light, such that the light projected to a display screen can accurately cure resin. A light source assembly includes a light emitting assembly, the first light transmitting assembly and the second light transmitting assembly. The light emitting assembly and the second light transmitting assembly are arranged on two opposite sides of the first light transmitting assembly respectively, and an outer profile of the second light transmitting assembly is of a cambered plate-like structure. Light emitted by the light emitting assembly is projected after being sequentially refracted by the first light transmitting assembly and the second light transmitting assembly. The light source assembly is mainly used for providing backlight for 3D printing.