Difference between revisions of "Laser Cutting Acrylic"

Revision as of 23:31, 24 November 2015

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

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

There are two main types of acrylic sheet:

Created by extruding molten acrylic pellets through a machine

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

Created by pouring molten acrylic pellets into a mold

Pros
- Produces better results when engraving (white frost)
- Comes in many colors
- Machines better
- Higher optical clarity
- More scratch resistant
Cons
- Expensive (your kid might not be going to college)

SUBSTRATE	250 DPI RASTER ENGRAVING SPEED/POWER	400 DPI RASTER ENGRAVING SPEED/POWER	500 DPI RASTER ENGRAVING SPEED/POWER	VECTOR CUTTING SPEED/POWER/FREQUENCY
Acrylic	100/100	100/80	100/60	⅛ (3 mm) – 15/100/5000
				¼ (6.4 mm) – 5/100/5000
				(multiple passes may allow cutting of thicker materials)

If engraving, try to use cast acrylic as it will produce better results
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.

@@ Line 5: / Line 5: @@
 ===Safety===
 ----
-{{warn|'''ALWAYS keep a close eye on the machine when cutting acrylic due to its flammability}}
+{{warn|'''ALWAYS keep a close eye on the machine when cutting acrylic due to its flammability'''}}
 ===Types===
 ----