K40 CO2: Polycarbonate (Lexan)

What speed should I use to engrave Polycarbonate (Lexan) on the K40 CO2?

The top-rated community setting uses 115 mm/s at 23% power. Engrave only -- polycarbonate scorches, yellows, and can craze/crack if you try to cut it with a CO2 or diode laser. Low power, high speed, single pass.

Can the K40 CO2 cut Polycarbonate (Lexan)?

Cutting Polycarbonate (Lexan) on the K40 CO2 may be possible but no verified cut settings have been submitted yet. You can contribute your own tested settings using the button above.

How many passes does the K40 CO2 need to engrave Polycarbonate (Lexan)?

All settings here use a single pass. Confirm focus and do a small test burn before committing to your final design.

Do I need air assist for Polycarbonate (Lexan) on the K40 CO2?

Air assist is not flagged as required for these settings, but it is good practice during cutting operations to keep the lens clean and reduce char buildup.