Laser Cutting Acrylic

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Overview


Acrylic is a type of plastic that can be easily cut and formed to be used in many applications.

Safety


ALWAYS keep a close eye on the machine when cutting acrylic due to its flammability.

Two Main Types of Acrylic Sheet


Extruded Acrylic

Created by extruding molten acrylic pellets through a machine.

  • Pros of Extruded Acrylic
    • Cheaper than cast acrylic
    • Better tolerances
    • Easier to bend and form
    • Easier to flame polish edge
  • Cons of Extruded Acrylic
    • Easy to crack
    • Engraving produces grey frost
    • Lower optical clarity when compared to cast (still very high)
    • Less scratch resistant

Cast Acrylic

Created by pouring molten acrylic pellets into a mold.

  • Pros of Cast Acrylic
    • Produces better results when engraving (white frost)
    • Comes in many colors
    • Machines better than extruded acrylic
    • Higher optical clarity
    • More scratch resistant
  • Cons of Cast Acrylic
    • Expensive

ENGRAVING / CUTTING

Substrate 250 DPI
RASTER
ENGRAVING
SPEED / POWER
400 DPI
RASTER
ENGRAVING
SPEED / POWER
500 DPI
Raster
Engraving
Speed / Power
Vector
CUTTING
SPEED / POWER / FREQUENCY
⅛ (3 mm)

Acrylic

100 / 100 100 / 80 100 / 60 15 / 100 / 5000
¼ (6.4 mm)

Acrylic

100 / 100 100 / 80 100 / 60 5 / 100 / 5000

Tips

  • Multiple passes may allow cutting of thicker materials.
  • When vector cutting, use masking tape on the backside of the piece to protect against flair up scorch marks as the laser hits the cutting grid.

Related Pages

Links to related PPM Wiki pages:

  Laser — Epilog Zing   - make a reservation
  Laser — BOSS   - make a reservation
LightBurn Tips

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Pikes Peak Makerspace (PPM) is dedicated to supporting our maker community in their creative processes by providing shared space, shared tools, materials, software, and a knowledge base to turn their ideas into reality.