3mm Black Acrylic

Black acrylic engrave — CO2 removes surface to expose lighter core. Low power prevents warping. Leave protective film on during engraving.

3mm black acrylic CO2 cut — cast acrylic gives polished flame edge. Extruded acrylic may crack; cast recommended.

Black acrylic engrave — CO2 removes surface to expose lighter core. Low power prevents warping. Leave protective film on during engraving.

3mm black acrylic CO2 cut — cast acrylic gives polished flame edge. Extruded acrylic may crack; cast recommended.

Black acrylic engrave — CO2 removes surface to expose lighter core. Low power prevents warping. Leave protective film on during engraving.

3mm black acrylic CO2 cut — cast acrylic gives polished flame edge. Extruded acrylic may crack; cast recommended.

Black acrylic engrave — CO2 removes surface to expose lighter core. Low power prevents warping. Leave protective film on during engraving.

3mm black acrylic CO2 cut — cast acrylic gives polished flame edge. Extruded acrylic may crack; cast recommended.

Black acrylic engrave — CO2 removes surface to expose lighter core. Low power prevents warping. Leave protective film on during engraving.

3mm black acrylic CO2 cut — cast acrylic gives polished flame edge. Extruded acrylic may crack; cast recommended.

Frosted light mark on black acrylic. Subtle but readable.

Light frosted mark on black acrylic. Subtle but readable.

CO2 cuts all acrylic colours equally — wavelength absorbed regardless of colour.

Black acrylic absorbs 445nm diode well but melts easily. Slow speed + air assist + multiple passes.

White frosted engrave on black acrylic. Very high contrast. Low power — CO2 at 30W still needs gentle touch for surface engrave.

K40 cuts 3mm acrylic cleanly. Remove protective film. Without air assist edges may have slight melt — polish with a heat gun if needed.

Opaque black acrylic only — 450nm diode passes through clear acrylic. With 33W and air assist, cuts cleanly in a single pass at high speed. Remove protective paper before cutting. Constant power mode. Check for slight haze on edge — remove masking immediately if present.

Opaque/cast black acrylic only — clear acrylic passes straight through 450nm diode. The S6 Pro needed 10 passes at 600mm/min vs S6 needing 16, per hobbylasercutters review. Constant power mode. Remove protective paper after cut.

Opaque/cast black acrylic only. Use Constant Power mode in LightBurn. Focus 1–2mm below surface. Clear acrylic is not suitable — 450nm diode passes straight through it.

White frosted engrave on black acrylic. Very high contrast. Great for signage and awards.

Clean cut. Remove film. Black acrylic engraves beautifully too at 200mm/s 20%.

Excellent cut quality. Flame-polished edges. Remove protective film after cutting.

Acrylic cuts cleanly with air assist. Remove protective film before cutting.

What are the best laser settings for 3mm Black Acrylic?

A top-rated community setting for 3mm Black Acrylic on the Glowforge Pro is speed 350 mm/s, power 18–25%. There are 36 community-tested settings for 3mm Black Acrylic across 15 machines on this page.

Can a diode laser engrave or cut 3mm Black Acrylic?

Yes - there are 13 community settings for 3mm Black Acrylic on diode lasers and 21 on CO₂ lasers. CO₂ lasers generally cut faster and cleaner, but modern high-wattage diode lasers handle most acrylic work well.

Do I need air assist for 3mm Black Acrylic?

42% of the community settings for 3mm Black Acrylic use air assist. Air assist is optional for most operations but can improve edge quality on cuts.

What speed and power to cut 3mm Black Acrylic in one pass?

Settings vary by machine wattage. For a 20W diode laser, cutting 3mm Black Acrylic typically requires high power (90–100%) at moderate speed (1500–3000 mm/min) with air assist. CO₂ lasers can cut 3mm material faster - 20–60 mm/s at 50–70% power is common. Check the settings table below for your specific machine.