Changes

== '''NEVER CUT THESE MATERIALS''' ==

== '''NEVER CUT THESE MATERIALS''' ==

* '''PVC (Poly Vinyl Chloride):''' Also known as '''"vinyl"''' '''"pleather"''' or '''"artificial leather."''' Most adhesive vinyl shelf paper (e.g. Con-Tact Paper) also is PVC. Emits pure chlorine gas when cut! Don't ever cut this material as it will ruin the optics, cause the metal of the machine to corrode, and ruin the motion control system.

* '''PVC (Poly Vinyl Chloride):''' Also known as '''"vinyl"''' '''"pleather"''' or '''"artificial leather."''' Most adhesive vinyl shelf paper (e.g. Con-Tact Paper) also is PVC. Emits HCl and nasty chlorinated compounds when cut! Don't ever cut this material as it will ruin the optics, cause the metal of the machine to corrode, and ruin the motion control system.

* '''Polycarbonate:''' Also known as '''"Lexan."''' Polycarbonate is also often found as flat, sheet material. The case cover window on the laser cutter is made of Polycarbonate because polycarbonate strongly absorbs infrared radiation! This is the frequency of light the laser cutter uses to cut materials, so it is very ineffective at cutting polycarbonate. Polycarbonate can also emit flame and chlorine gas when cut, making it a poor choice for laser cutting.

* '''Polycarbonate:''' Also known as '''"Lexan."''' Polycarbonate is also often found as flat, sheet material. The case cover window on the laser cutter is made of Polycarbonate because polycarbonate strongly absorbs infrared radiation! This is the frequency of light the laser cutter uses to cut materials, so it is very ineffective at cutting polycarbonate. Polycarbonate can also emit flame and chlorine gas when cut, making it a poor choice for laser cutting.

* '''ABS:''' ABS does not cut well in a laser cutter. It tends to melt rather than vaporize, and has a higher chance of catching on fire and leaving behind melted gooey deposits on the vector cutting grid. It also does not engrave well (again, tends to melt). Finally, ABS emits cyanide when cut.

* '''ABS:''' ABS does not cut well in a laser cutter. It tends to melt rather than vaporize, and has a higher chance of catching on fire and leaving behind melted gooey deposits on the vector cutting grid. It also does not engrave well (again, tends to melt). Finally, ABS emits cyanide when cut.

* '''Fiberglass:''' It's a mix of two materials that can't be cut. Glass (etch, no cut) and epoxy resin (fumes)

* '''Fiberglass:''' It's a mix of two materials that can't be cut. Glass (etch, no cut) and epoxy resin (fumes)

* '''Coated Carbon Fiber:''' Again, it's a mix of two materials. Thin carbon fiber mat can be cut, with some fraying. However, once coated with epoxy it will emit noxious fumes.

* '''Coated Carbon Fiber:''' Again, it's a mix of two materials. Thin carbon fiber mat can be cut, with some fraying. However, once coated with epoxy it will emit noxious fumes.

== Safe Materials ==

== Safe Materials ==