95023ea2_Lasercutter___Noisebridge__DANGER_
[Material] Thick ( >1mm ) Polycarbonate/Lexan [Cause/Consequence] Polycarbonate is often found as flat, sheet material. The window of 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 is a poor choice for laser cutting. [DANGER!] 
Cut very poorly, discolor, catch fire
Lasercutter - Noisebridge
DANGER!