Rainbow Rapid PROTOTYPE Co.,Ltd

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Rapid Prototyping service

We are  manufacturer in Rapid Prototype and molding with over 10 year experience in china,apply to Medical Equipment,Auto Parts,Electronic and Toy's area and so on.

Our main service:

CNC milling(machining) parts
Rapid Prototyping(CNC,SLA,SLS);
Injection Mould;
Low Mass Production;
Vacuum Casting ;
Rapid Tooling
Precision Metal Stamping


Rainbow Company offer  the best service and   quality for more than 10,000 clients  around the world  in past years. Since 2008 we  established a  new branch company in  American.
If you have any questions,Welcome here.


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  Silicon mold for small production
  Introduction to Rapid Prototyping
  SLA(Stereolithography)
  RIM
 

we use 3D Systems SLA ® machines for rapid prototyping and pattern making for use with secondary molding or casting processes.

Stereolithography is an additive manufacturing process which employs a vat of liquid ultraviolet curable photopolymer "resin" and an ultraviolet laser to build parts' layers one at a time. For each layer, the laser beam traces a cross-section of the part pattern on the surface of the liquid resin. Exposure to the ultraviolet laser light cures and solidifies the pattern traced on the resin and joins it to the layer below.

After the pattern has been traced, the SLA's elevator platform descends by a distance equal to the thickness of a single layer, typically 0.05 mm to 0.15 mm (0.002" to 0.006"). Then, a resin-filled blade sweeps across the cross section of the part, re-coating it with fresh material. On this new liquid surface, the subsequent layer pattern is traced, joining the previous layer. A complete 3-D part is formed by this process. After being built, parts are immersed in a chemical bath in order to be cleaned of excess resin and are subsequently cured in an ultraviolet oven.

Stereolithography requires the use of supporting structures which serve to attach the part to the elevator platform, prevent deflection due to gravity and hold the cross sections in place so that they resist lateral pressure from the re-coater blade. Supports are generated automatically during the preparation of 3D Computer Aided Design models for use on the stereolithography machine, although they may be manipulated manually. Supports must be removed from the finished product manually, unlike in other, less costly, rapid prototyping technologies.