Breakpoint continuous printing method of surface exposure 3D printing equipment

Abstract

The invention discloses a breakpoint continuous printing method of surface exposure 3D printing equipment. The method integrates the breakpoint continuous printing method into a control method of the equipment, and adds the operation required for realizing breakpoint continuous printing into the operation of the whole system according to the interactive logic relationship between an upper computer and a lower computer. The breakpoint continuous printing function is achieved for the surface exposure technology, and the implementation method is simple and reliable. Compared with surface exposure printing equipment without a breakpoint continuous printing function, the breakpoint continuous printing function can significantly improve the printing success rate and save the printing cost; the upper computer is used for recording the Z-axis stroke, and personalized customization is achieved according to different conditions of each equipment; and according to the method, the medium-fault printing state is judged, whether the layer needs to be cured again or not is judged according to the irradiation time of the current layer when printing is interrupted, so that the printing quality of a breakpoint layer is improved, and the possibility of layer staggering during breakpoint continuous printing is reduced.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a breakpoint continuous printing method for surface exposure 3D printing equipment. Background technique [0002] Surface exposure technology, literally translated as Digital Light Processing (DLP), is an additive manufacturing technology that uses a surface light source to irradiate a photosensitive resin material to cause a photocuring reaction and then accumulate layer by layer. First, a series of parallel planes are used to intersect the printed model to obtain a set of slices composed of cross-sectional images of the model. Then, each layer slice is converted into a two-dimensional mask image and projected onto the surface of the photocurable liquid for curing the current layer. Finally, the forming platform moves a slice layer thick distance to continue curing the next layer, repeating the above steps until the entire model is cured layer by layer. [0003...

AI Technical Summary

Problems solved by technology

However, these methods will increase the cost of equipment, and at the same time cannot flexibly meet user needs, such as feeding, secondary printing, etc., and need to manually pause the equipment to achieve breakpoint continuous printing

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