Custom 3d Printing Umbrella
Custom printed 3d umbrellas let the people around you see your umbrella as if it were in a three-dimensional. Umbrella canopy has a concave and convex feeling
The principle of 3D printing
To put it simply, 3D printing refers to the use of layered processing and superposition forming to increase the material layer by layer through a 3D printer that can “print” a real object. A little bit of a professional point is that the software completes a series of digital slices through computer-aided design techniques and transfers the information from these slices to a 3D printer, which uses raw materials to stack successive thin layers layer by layer until a solid object Molding, so the industry is also called rapid prototyping, 3D printer is also called rapid prototyping machine. Due to the variety of specific stacking forms, a variety of 3D printing processes have been created, each of which can print different types of materials, such as SLA (laser-cured photosensitive resin molding) and FDM (melt extrusion). Molding), 3DP (three-dimensional spray bonding), SLS (selective laser sintering), Ployjet (inkjet molding), and the like. “There are five mainstream 3D printing processes. We have equipment here.” Mr. Shao, Marketing Director of Beijing Shangtuo Technology Co., Ltd. pointed to a row of machines. “The current 3D printing printable materials are mainly gypsum and nylon. Abs plastic, pc, resin, metal, ceramics, etc., these raw materials used in 3D printing are a new material specially developed for 3D printing, not ordinary gypsum, plastic, resin, and the form of raw materials generally has powder Shape, filament, liquid.”
Detailed 3D printing process
FDM-Fused Deposition Modeling
The key to the FDM process is to keep the semi-flow molding material just above the melting point (usually controlled at about 1 °C above the melting point). The FDM nozzle is controlled by CAD layering data so that the fuse material in the semi-flow state (wire diameter is generally 1.5 mm or more) is extruded from the nozzle and solidified to form a thin layer of contour shape. Each layer has a thickness ranging from 0.025 to 0.762 mm, and a layer is layered to form the entire part model.
Raw materials used in the FDM process: thermoplastic materials such as ABS, PC, PLA, etc., fed in the form of filaments
Accuracy: 0.025 ~ 0.762mm
System construction principle and operation is simple
Low maintenance costs and safe system operation
Can be used directly in lost wax casting
Can form parts of any complexity
Support removal is simple, no chemical cleaning required
Laser Curing Photosensitive Resin (SLA-Stereo Lithography Apparatus)
The technology uses a photosensitive resin as a raw material, and the ultraviolet laser under computer control scans the liquid resin point by point according to the contour of each layered section of the predetermined part, so that the thin layer of the resin in the scanned area is photopolymerized, thereby forming a part. A thin section. When the layer is cured, move the workbench and apply a new layer of liquid resin to the surface of the previously cured resin for the next layer of scanning and curing. The newly cured layer is firmly bonded to the previous layer and is repeated until the entire part is prototyped.
Materials used: transparent color photosensitive resin, opalescent photosensitive resin, and the like.
High degree of automation in the molding process
High dimensional accuracy
Excellent surface quality
Visualize CAD digital models and reduce the cost of bug fixes
Prototypes and molds with complex structural shapes or difficult to form using traditional methods
Laser Sintering (SLS-Se1ected Laser Sintering)
The method uses a CO2 laser as an energy source, and most of the currently used modeling materials are various powder materials. A thin layer (100μ~200μ) of powder is evenly spread on the workbench. The laser beam is selectively sintered according to the layered profile of the part under computer control. After the layer is completed, the next layer is sintered. After all the sintering is completed, the excess powder is removed, and then the parts are obtained by grinding, drying, and the like. At present, mature process materials are wax powder and plastic powder, metal powder and ceramic powder.
Materials used: such as nylon, ABS, resin coated sand (coated sand),
Polycarbonate, metal and ceramic powder, etc.
Can make metal products
A variety of materials can be used
The production process is relatively simple
No support structure required
High material utilization
Inkjet technology process (Ployjet)
Slide back and forth along the X axis and apply an ultra-thin photosensitive resin to the molding chamber. After each layer is laid, the ultraviolet light bulb on the side of the nozzle holder immediately emits ultraviolet light to quickly cure and harden each layer of photosensitive resin. This step reduces the post-processing required to use other technologies. Each time a layer is printed, the machined chassis inside the machine will sink extremely accurately, and the nozzles will continue to work layer by layer until the prototype is completed. Two different photosensitive resin materials are used for molding: one is a molding material for molding a solid part, and the other is a supporting material for supporting the member.
Material used: photosensitive resin polymer material
Print high quality, high detail 3D models
Reduce design cycles and reduce R&D costs
Wide selection of materials
Easy support removal