Home Built Hot Wire CNC Foam cutter
Day 1 - Vertical Y Axis
Day 2 - Horizontal X Axis
Day 3 - Lead Screw
Day 4 - Electronics
Day 5 - Finalizing the machine
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A New Design - Hot wire CNC Foam cutter
Foam Sample Cuts
Foam Cutting Videos
Links - RC stuff, Stepper Motors, Lead Screws
More information - about stepper motors

Links
FoamLinx Site - Foam Cutting CNC Machines
CNCLinx Site - CNC Router Tables
Foam Cutting Services - EPP, EPS, XPS
All About Foam Forum - Beta
Composites Prototyping and Design
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Articles
How to coat EPS foam (Crown Moldings)
How to build an EPS Foam Recycler
How to build an EPS base and Cap cutter
How is EPS manufactured - molded
How to make RC foam planes
How to cut EPS, XPS, EPP foam
How to cut Polyurethane foam ( PU )
How to cut Acrylics - Laser cutting

What is - more info about foam
What is EPS foam
What is XPS foam
What is EPP foam - Expanded Polypropylene
What is PE foam - Polyethylene foam
What is Polyurethane foam
What is Memory Foam


 

 

                 Polyethylene Foam - PE Foam

Polyethylene is a class of thermoplastics practically ubiquitous in consumer products.
In its foam form, polyethylene is used in packaging, vibration dampening and insulation,
as a barrier or buoyancy component, or as material for cushioning. It is most frequently
seen as a packaging material.

Sixty million tons of polyethylene is produced worldwide each year, which is even
more than it sounds like when you consider its low density. In the UK, polyethylene is
known as polythene. Worldwide, the material is sometimes abbreviated as PE.

Polyethylene is produced through the polymerization of ethylene. Like other polymers,
polyethylene is made up of huge chains of ethylene and has a molecular weight in the millions.
These chains stick together through weak Van der Waals forces, meaning the material can be
ripped apart by human hands. Polyethylene with different densities or material properties is
created by using different catalysts during the polymerization process. For example, HDPE
(high density polyethylene) is produced with the catalyst chromium, which causes the
molecular chains to branch less and therefore possess a higher density.

Polyethylene is buoyant, making it popular for nautical uses. Most types of polyethylene
are non-abrasive; serve as a thermal insulator; are inert to water, grease and solvents at
typical temperatures; are CFC-free and ozone friendly, recyclable, odorless, and very lightweight.
Many types of polyethylene are approved for use in the food industry.

Found in all types of packaging, polyethylene is used to wrap furniture, computer components,
electronics, sporting goods, plants, frozen foods, clothing, bowling balls, signs, metal products,
and more. It comes in forms designed to minimize static or maximize thermal insulation,
among dozens of other variants. The material is impervious to bacteria and mold and is
tear-resistant. Polyethylene is among the cheapest of artificially fabricated materials,
but not as cheap as most raw materials, as the polymerization process consumes energy.
In addition, distribution costs are normal because polyethylene cannot be compressed much for shipping.