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What is slice process? Slicing is essentially cutting your 3D model into pieces, designing the print path (fill density, Angle, shell, etc.), and storing the slicing file into. Gcode, a file format that 3D printers can read and use directly. Then, through the 3D printer control software, the. Gcode file is sent to the printer and the parameters of the 3D printer are controlled. The motion makes it complete the printing. It actually communicates with a 3D printer.
Start the 3d printer, through the data line, SD card etc, the models of STL slice Gcode file transfer to 3d printer. At the same time, put in the 3d printing materials and debug print platform, set the printing parameters, then the printer start to work, the material will be printed layer by layer, through the special glue for bonding between layer and layer, and according to cross section design, finally they stack up layer by layer. Just like building a house, put the brick layer by layer, but after the accumulation, it comes to the stereo house. Eventually, through layering, gluing and stacking, a complete object emerges. The biggest difference between the 3D printer and the traditional printer is that the "ink" it uses is real raw material. After the 3D printer completes its work, take out the object and do post-processing. For example, when printing some suspended structures, a supporting structure needs to be lifted up before the suspended parts can be printed.Therefore, this part of redundant support needs to be removed for post-processing.
Sometimes 3d printed objects have rough surfaces (such as SLS metal) that need polishing.The methods of polishing are physical polishing and chemical polishing. It's usually sanding and bead blasting and vapor smoothing.
In addition, 3DP printing technology can achieve multiple color printing, other generally can only print a single color. Sometimes it is necessary to color the printed objects, such as ABS plastic, photosensitive resin, nylon, metal, etc. Different materials need different pigments.
For other treatments, after the completion of the process of 3d printing powder materials, some follow-up treatment measures are required to enhance the molding strength and extend the preservation time of the mold, including static setting, forced curing, powder removal, coating, etc.After the printing process, the printing mold needs to be left standing for a period of time, so that the formed powder and binder can be cured completely through crosslinking reaction, molecular interaction force, etc., especially for powder with gypsum or cement as the main component.
The first condition of forming is the hardening between powder and water, and then the strengthening effect of binder part, a certain period of standing has a significant impact on the final forming effect. When the mold has initial hardness, additional measures can be applied to further strengthen the force according to different categories, such as heating, vacuum drying, ultraviolet irradiation, etc. After the completion of this process, the prepared mold has a relatively tough degree, so it is necessary to remove other powder on the surface, sweep away most of the surrounding powder with a brush, and remove the remaining powder by mechanical vibration, microwave vibration, wind blowing in different directions, etc. It has also been reported that molds are immersed in a special solvent, which dissolves the scattered powder but does not dissolve the solidified mold. Can achieve the purpose of removing excess powder.
For the finished powder removal mold. Especially gypsum - based, ceramic - based and other easily water - absorbing materials made of molds.Still need to consider its long-term preservation problem, the common method is to brush a layer of waterproof curing glue outside mould, increase its intensity, prevent because of bibulous and abate. Or dip the mold into a protective polymer, such as epoxy resin, cyanoacrylate, melted paraffin wax, etc.], and the final mold can be waterproof, strong, beautiful, and not easily deformed.
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