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Medical Applications
Why PolyJet for Medical applications?
  • Outstanding detail and fine features that will withstand support removal
  • Clear amber color in order to view parts such as facial sinuses
  • Durable resin which preserves delicate structures such as the floor of the orbit and the nasal concha
  • Fast overall build time to final model enables use for trauma or tumors
  • Ability to cut and fix plates and screws on to model

PolyJet Advantages in Medical Applications

  • Surgery simulation
  • Production of surgical guides over bones
  • Reduction of surgical risks
  • Reduction of time and hospital costs
  • Production of personal prostheses
  • Communication to patient
  • Planning without patient presence

Regulatory Approval Update:

FullCure720 now comprises a set of medical regulatory approvals, having passed a number of tests including:

  • Irritation
  • Sensitization
  • Cytotoxicity
  • USP Class VI
Metal Coating

The metal coating application is based on primary metallizing of the model and covering any non-conductive spots. Models then are sanded and coated copper and nickel.

Advantages Electroless Nickel coating:

  • High Hardness
  • Low Friction
  • Excellent Corrosion Resistance
  • Applicable For Non-Metal Models
  • Vary coating thickness
  • Uniform Coating Thickness
  • Good Wear Resistance
  • Low temperature Process

Typical Applications for Electroless Nickel™

  • mechanical components
  • plastic moulds, dies, screws and fittings
  • household equipment
  • automotive components
  • medical components
  • aerospace components
Dying
To add color and preserve the translucency to PolyJet models, apply a penetrating, aniline dye. Within a short time and non-expensive process, one can finish models with vibrant, translucent color.

Color brings life to many models and applications, and there is no simpler way to add color than using aniline dye with PolyJet models. Smooth surfaces and fine resolution eliminate the time and effort of sanding the model. Combined with the speed of the PolyJet process, showpieces are ready the same day that the design is complete. The unique solution is made possible by the translucency of the FullCure material.

In comparison, applying dye is much easier and faster than painting models.
No skill is needed for this one-step process. Additionally, the aniline dye does not add any material to the surface of the parts, so the model's dimensional accuracy is not changed.

Aniline dye comes in a wide range of colors and cost. Sold as a stain for leather or wood, the dyes are readily available from most leather working and woodworking supply stores.

Vacuum Forming
Vacuum forming or thermoforming is one of the most common methods for processing plastic materials. Vacuum formed products are all around us and play a major part in our daily lives.
The process involves heating a plastic sheet until soft and then draping it over a mould. A vacuum is applied sucking the sheet into the mould. The sheet is then ejected from the mould.

Vacuum forming offers several processing advantages over other forming processes. Low forming pressures are used thus enabling comparatively low cost tooling.

Since the process uses low pressures, the moulds can be made of PolyJet materials and mould fabrication time can be reasonably short. Prototype and low quantity requirements of large parts, as well as medium size runs therefore become economical.

Silicon Molds

Silicon molds are a fast inexpensive technology, which provides excellent detail reproduction. It also allows bridges the gap between rapid prototyping and hard tooling:

  • Option of using multiple materials
  • Good material properties, close to that of thermoplastics
  • Undercuts
  • Good for up to about 50 parts

The PolyJet technology is ideal for all silicon molds applications for the main advantages of:

  • Excellent accuracy
  • Crisp details
  • Thin walls and smooth surfaces
  • Fast overall build to get master
Rapid Tooling with PolyJet

Models produced with PolyJet technology produce durable parts with outstanding feature detail and excellent surface characteristics.

How does it work?

Convert model drawing into Mold using a tooling function, a standard feature in solid modeling software.  4 alignment pins and holes are then added, to ensure that the two halves of the mold line up perfectly.  Some CAD Modeling software program give automatic parting lines while in others, these parting lines must be chosen.  In this particular application, no other special features needed to be added such as draft angles.
The two parts are then manually fit one onto the other (no vacuum chamber, due to the press fit, no air bubbles are created)
This technique can also be used for more sophisticated parts with undercuts by adding space for overflow resins and additional inserts.

Aluminum Epoxy Molds  

Using of Aluminum Epoxy molds allows the use of PolyJet part as master for high production. This technique provides inexpensive and relatively fast way to produce up to a few hundred copies.

One can produce copies with thermoplastic, engineering materials, where it is ideal for low to medium complexity models Note that high complexity models requires many metal inserts

Metal Spin Casting Applications
One of the most exciting modern applications of spin casting technology is its use in rapid prototyping and product development. It is ideal for quickly and economically producing numerous fully functional, fragile parts in high-strength metal or plastic from computer-generated RP models.
Penetrating Dye for Translucent Color

Color brings life to your models, and there is no simpler way to add color and preserve translucency than using aniline dye with PolyJet™ models.

RP Tempering Applications
A new process called RP Tempering speeds up processing time, reduces costs, and produces a stronger RP part.
Painting of PolyJet™ Parts
For sales samples, photography or finished models, painted PolyJet™ parts produced using Objet 3-Dimensional Printing Systems will give your customers a compelling preview of your newest products.
Jewelry Molds Using VLT Rubber Process
The recent introduction of Castaldo® VLT™ [Very Low Temperature] molding rubber opens the way to a new time-saving process for jewelry molding using Objet Eden™ 3-Dimensional Printing Systems.
Creating Clear or Translucent Models
Not all plastic parts are opaque. For clear parts such as lenses, containers, covers, panels and a variety of other applications, Objet’s PolyJet™ Technology offers the advantages of rapid prototyping while also enabling the translucency required for the application.

 

 
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