Polyjet 3D Printing Singapore
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What is Polyjet?
Polyjet is an industrial liquid based 3D printing technique that builds parts with photopolymer resins. During its printing process, a carriage jets photopolymers onto the work space, which are then cured by a UV light. After creating a thin layer, the process repeats itself by jetting additional layers until it finally forms the part.
The technology is similar to Stereolithography (SLA) as they both use the same resins.
However, SLA uses far more heat than PolyJet, which uses lower temperatures and UV light to cure the resin. Furthermore, SLA uses UV lasers to cure patterns cross-section by cross-section, while the latter uses fine printhead nozzles to dispense droplets of photocurable liquid material onto a build tray in layers as fine as 16 microns. The material is simultaneously cured as it is deposited via UV light to form a 3D object.
Another difference between SLA and Polyjet is in terms of curing. SLA parts are not fully cured, and require additional curing in a UV oven. On the other hand, parts by the latter are already fully cured.
One feature that sets Polyjet apart is its support material. The technology utilizes a soluble support material that dissolves away in a water based solution. Therefore, it has the ability to print intricate details and clean off the support without risking damaging the part.
Polyjet is one of the fastest 3D printing technologies, capable of printing parts within a five-inch cube in as little as two hours. It is also able to achieve a smooth surface finish right off the build.
VeroClear is a transparent material that simulates PMMA (polymethyl methacrylate), commonly known as acrylic. Like PMMA, VeroClear is used as an alternative to glass and is ideal for concept modeling and design verification of clear parts such as eyewear, light covers and medical devices.
The multi-purpose Vero photopolymers offer strength, stiffness and versatility. Vero combines excellent detail visualization with strength, a key component in realistic prototypes. Produce smooth, accurate prototypes, surgical models, moving and assembled parts, jigs, fixtures and manufacturing tooling.
Other 3D Printing Processes
Short for Fused Deposition Modeling, FDM is one of the most commonly adopted additive manufacturing technologies today due to its low cost and efficiency.
Stereolithography was first developed in the 1980’s. The process is often used when a smooth finish and high accuracy is required.
SLS is a powder-based 3D printing technology suitable for building parts that require complex geometries and high durability.
Similar to SLS, Multi Jet Fusion also utilizes powder to 3D print objects. Parts produced by MJF are stronger and more precise compared to SLS.
Full Colour 3D UV-Curable Inkjet technology has the capability to print 10 million colours, making it ideal for products such as marketing models.