What are Machined Plastic Parts?

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Plastic parts cut and shaped by CNC machines. Moderate prices.
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Computer-controlled machines are able to cut and shape virtually any kind of material for prototyping purposes.

How It Works
Machined Plastic Parts start as a raw block of material that gets cut away and shaped down to the final shape by CNC machines. The process is the same as the standard CNC metal prototyping process. The advantages of using machined plastic parts instead of other rapid prototyping methods is that nearly any material can be used, and it is sometimes cheaper.

Typical Uses
  • Rapid Prototypes
  • Fixtures
  • Production Parts
Costs
Example quotes for a 2-inch sphere:
Process Qty 1 Qty 10
SLA $376 each $109 each
SLS $501 each $121 each
FDM $182 each $154 each
PolyJet $479 each $139 each
Machined Plastic $458 each $139 each
Urethane Castings N/A $120 each
So, you can see how volume discounts can be a big factor, especially for processes that are slow in the vertical direction.

For More Information
Wikipedia article

See the Next Article: Rapid Injection Molding

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