Home › Forums › CNC Technology › Best plastic for CNC machining thin LED covers? This topic has 1 reply, 2 voices, and was last updated 3 years, 4 months ago by Bean 86. Viewing 1 post (of 1 total) Author Posts December 21, 2021 at 6:43 am #1053 Bean 86Participant Polycarbonate maybe. Perfectly machinable, available from black, milky white up yo fully transparent, flexible and pretty cheap of we’re talking about 1-2mm sheets. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In