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Arrk offers a range of model making solutions

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Arrk  offers a range of model making solutions to suit its client’s specific needs. There are models ranging from straightforward blocks machined in wood or foam to models machined in a specific engineering plastic or metal. Highly finished models with painting, pad printing or laser etching that makes them look just like the real thing are also available.

Some of the materials available using Rapid CNC technologies are:

  • PU foam chemical wood acrylic
  • Nylon GF nylon acetyl
  • Aluminium stainless steel zinc
  • Brass
Following are examples of models showing the various finishing options available:

No painting:

Precision CNC machining containing smooth surfaces.

The model pictured on the right side is a block model used to communicate the overall appearance of the design. However, in most cases Arrk customers request parts to be machined individually to allow electronics to be inserted and tested.

CNC model with paint:

The model pictured on the right shows an LCD lens that has been machined in acrylic, polished and then glued into place.

The paint has been matched to a PMS colour, with gloss, matt and satin finishes available.

The model shown in the picture is also a block model, with none of the buttons being functional.

Model painted and finished:

In addition to painting, the example pictured has been vacuum metalised to create a realistic look.

The buttons have been pad printed and machined separetly, so they are functional. Arrk will use a combination of CNC machining and rapid plastic technology to match the customer’s material and colour requirements, such as silicone rubber key-pads or colour tinted lenses.

This finished option is ideal for presentations, photo shoots and exhibitions.

A working, realistic model:

This level of finishing includes painting, metalising, pad-printing/laser etching, functional buttons and material match.

In addition, a weight has been applied to this prototype phone model to give it a realistic feel and includes a battery that illuminates the screen to show the clients graphics. With this finish option, Arrk will supply a battery charger.

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