CNC Foam Cutter Info
Here we will present important information about cnc hot wire foam cutting machines. It includes facts regarding its usage, its main components, the features to look for and the pricing. It even offers you instructions on how to assemble your own machine.
What is a hot wire cnc foam cutter used for?
Hot wire foam cutters will cut different types of foam, from insulation to fabrication, from logos,surfboardsand signs to crown moldings and concrete molds .
Foam cutting machines have many applications. They can be used to cutarchitectural shapes, for packaging, building, construction, hobbies, RCPlanes, sculptures, monuments, theme parks, props, aeronautics, aerospace andmuch more.
Hot Wire CNC Foam Cutter prices:
CNC foam cutters will range from 1500 dollars to 50,000 dollars. The price is a factor of the machine size, the number of wires, the way the wires arekept under tension.
Other foam cutting machines:
Another way to cut foam is with a CNC router C this is mainly for machining the foam and not for cutting. CNC routers for foam are mostly used for 3D shapes seen in Las Vegas, theme parts and even signs
Foam coating: EPS and XPS will melt if painted with oil-based paint. Painting is composed of two steps:
Preparing the foam for coating C a primer should be used to prevent the coating material to penetrate the EPS beads
Coating C Coating is usually Epoxy (usually brushed) or Polyurethane (brushed orsprayed)
Once the foam is coated C it can be painted with any type of paint.
Cutting EPS Foam:
Expanded polystyrene is very easily cut with a hot-wire foam cutter, which is easily made by a heated and taut length of wire, usually nichrome due to nichromes resistance to oxidation at high temperatures and its suitable electrical conductivity. The hot wire foam cutter works by heating the wire to the point where it can vaporize foam immediately adjacent to it. The foam gets vaporized before actually touching the heatedwire, which yields exceptionally smooth cuts.
Polystyrene, shaped and cut with hot wire foam cutters, is used in architecture models, actual signage, amusement parks, movie sets, airplane construction, and much more. Such cutters may cost just a few dollars (for a completely manual cutter) to tens of thousands of dollars for large CNC machines that can be used in high-volume industrial production. Polystyrene can also be cut with a traditional cutter. In order to do this without ruining the sides of the blade one must first dip the blade in water and cut with theblade at an angle of about 30. The procedure has to be repeated multiple times for best results.Polystyrene can also be cut on 3 and 5-axis CNC routers, enabling large-scale prototyping and model-making.