The laser cutters can cut materials up to 1/2" thick, although with some denser materials, no thicker than 1/8" is suggested. We have two tables with suggested settings for Vector Processes and Engraving Processes on acceptable materials, however, exact settings will vary so a materials test should always be performed. The settings provided should be used only as a reference, since they are settings previously used by our team, but won't necessarily work the same way with your own material.
Also take into consideration that due to natural variations in the pressure of the vacuum, it is expected that the laser cutters might lose power over the day. For example, if you cut something in the morning, it might need a little more power if you cut again in the afternoon.
Prohibited Materials
The use of prohibited materials could result in the material melting to the laser cutter bed or the release of toxic fumes. Due to the severity of risk, cutting prohibited materials will result in loss of lab privileges and fines for damages.
- Lexan
- Polyurethane
- PVC*
Styrene
- Polycarbonate
- Vinyl
- ABS (3D prints are made with this)
- Foam Core
- Foamboard
- Metal**
Chloride-based materials
Questionable Materials
Consult with Tech Desk Staff for approval
Wood, ie. plywood with potentially flammable adhesives
Soft materials like leather
Reflective materials
For more information on materials that can possibly be cut (not all materials listed are approved by SOA IT), please see: https://www.lasercuttingshapes.com/page/materials.
Another valuable resource: http://atxhackerspace.org/wiki/Laser_Cutter_Materials.
Acceptable Materials
Epilog Fusion Pro 48 CO2 80W
Please do a materials test before every new cutting session to determine the proper levels for your material.
Any links for materials go to the Laser Cutting Shapes website, which is a laser cutting service. These links are only to give context and examples of projects.
Suggested Settings – Always do a materials test
This blue table covers cut settings for Vector Processes, which are for clean lines. If you wish to score/etch your material with clean lines, you will need to experiment with slightly weaker settings than the ones listed below. This is another reason why running a materials test is imperative.
The yellow table (under the blue table) covers Engrave Processes, which are for raster images. You will rarely if ever, run an Engrave Process.
Vector (Cut/Etch) Process | |||||
|---|---|---|---|---|---|
| Material | Depth | Speed | Power | Frequency | Quality & Safety Notes |
| Acrylic (Plexiglas) | 1/8" (3 mm) | 12 | 100 | 100 | Vector cutting table (cross-hatched) must be used. A general rule of thumb for cutting acrylic is to relatively slow speed and high power; this produces a more flame-polished edge. |
| 1/4" (6 mm) | 6 | 100 | 100 | There are two types of acrylic: cast is better for engraving (it creates a frosted look when engraved) and extruded acrylic produces a much better flame polished edge. | |
| 3/8" (9.5 mm) | 3 | 100 | 100 | Note from manual: Adjusting the standard focus distance so it is closer to the lens by about .080” (2 mm) will produce better edge quality when cutting 1/4” (6mm) acrylic and thicker. Two passes can be used for cutting thicker materials. | |
| Chip | 1 ply | 100 | 25 | 50 | |
| 2 ply | 100 | 50 | 50 | ||
| 4 ply | 45 | 90 | 50 | ||
| Corrugated cardboard | 1/8" (3 mm) | 100 | 60 | 50 | |
| 1/4" (6 mm) | 60 | 60 | 50 | ||
| Leather | 1/8" (3 mm) | 60 | 100 | 50 | |
| Mat Board (Crescent) | 30 | 40 | 50 | ||
| Museum Board (Strathmore) | 1 ply | 100 | 27.5 | 50 | |
| 4 ply | 5 | 25 | 50 | Will have some char on edges. | |
| Plastic*** | 2-Layer Laser Engraveable 1/16" (1.5 mm) | 10 | 40 | 100 | |
| Plywood | 1/4" (6mm) max | 12 | 100 | 10 | Recent incidents of fire indicate that this material requires caution and additional supervision if cutting is attempted. Additionally, glue and air pockets may prevent complete cut-through in some areas. MDF is recommended instead of plywood. |
| Twill | 90 | 80 | 25 | ||
| Wood | Thin Veneer | 50 | 80 | 10 | Note from manual: When cutting wood, multiple passes may allow cutting of thicker materials. Using Color Mapping you can adjust the focus point between passes down to the center point of the cut for the best results. Always use the additional Sweep Air Assist when cutting. |
| 1/8" (3 mm) | 25 | 100 | 10 | ||
| 1/4" (6mm) | 13 | 100 | 10 | ||
| 3/8" (9.5 mm) | 7 | 100 | 10 | ||
| 1/2" (12 mm) | 4 | 100 | 10 | ||
***Ask for approval/assistance for the exact plastic you want to cut.
Engrave Processes are for raster images only.
(Raster) Engrave Process | |||||
|---|---|---|---|---|---|
| Material | Type | DPI | Speed | Power | Quality & Safety Notes |
| Acrylic (Plexiglas) | Photo | 300 | 100 | 40 | Vector cutting table (cross-hatched) must be used. There are two types of acrylic: cast is better for engraving (it creates a frosted look when engraved) and extruded acrylic produces a much better flame polished edge. |
| Text / Clipart | 300 | 100 | 60 | ||
| Text / Clipart | 500 | 100 | 55 | ||
| Alumamark | Engraving | 300 | 100 | 20 | Engrave only. Alumamark settings PDF. |
| Engraving | 500 | 100 | 10 | ||
| Anodized Aluminum | Photos/Clipart | 400 | 100 | 35 | Engrave only. This material is reflective, so avoid using full power. Use low power and high speed for crisp edges. |
| Photos/Clipart | 500 | 100 | 30 | ||
| Text | 500 | 100 | 40 | ||
| Brass (Painted) | Painted solid brass | 300 | 100 | 25 | Engrave only. Must be painted. Not magnetic. Ask for assistance from the Tech Desk when etching this material. Use low power and high speed. Blue paints are more difficult to remove. If the finished product has a shadow, use alcohol or lacquer thinner to clean the edges. This material can be tricky: if it's polished before being painted, you'll see a polished finished product. If the brass isn't polished before being painted, the result will be dull. |
| Painted brass-coated steel | 500 | 100 | 15 | Engrave only. Must be painted. Magnetic. Ask for assistance from the Tech Desk when etching this material. Use low power and high speed. Blue paints are more difficult to remove. If the finished product has a shadow, use alcohol or lacquer thinner to clean the edges. This material is steel that has been coated with brass, that brass layer is polished, then a layer of lacquer is applied, then the paint is applied. When you etch it, you're exposing the polished brass that is protected from oxidation by the lacquer coating. This material is preferred over painted solid brass. | |
| Cork | 300 | 100 | 30 | Engrave only. | |
| Fleece | 200 | 100 | 15 | Engrave only. Jarvis dithering pattern and using 80% grayscale for black is recommended. | |
| Glass | 300 | 35 | 100 | Engrave only. Be sure that your material isn't actually leaded crystal. Jarvis dithering pattern and using 80% grayscale for black is recommended. Frosting is the result of etching this material. To dissipate heat from the engraving process, use either a wet sheet of newspaper/paper towel or a thin coat of dish soap. | |
| Leather | Photo | 300 | 100 | 20 | |
| Text / Clipart | 500 | 100 | 25 | ||
| Marble | Photo Engraving | 300 | 100 | 35 | Engrave only. |
| Text Engraving | 500 | 100 | 45 | ||
| Plastic*** | Various | 300 | 100 | 20 | Ask for approval from the Tech Desk when etching this material. |
| 2-Layer Laser Engraveable 1/16" (1.5 mm) | 300 | 100 | 40 | ||
| 2-Layer Laser Engraveable 1/16" (1.5 mm) | 500 | 100 | 25 | ||
| Stainless Steel with Cermark Coating | 500 | 45 | 100 | Engrave only. Must be coated with Cermark metal marking spray. | |
| Wood | Photo | 500 | 70 | 100 | Note from manual: When cutting wood, multiple passes may allow cutting of thicker materials. Using Color Mapping you can adjust the focus point between passes down to the center point of the cut for the best results. Always use the additional Sweep Air Assist when cutting. |
| Clipart / Text | 300 | 60 | 100 | ||
| Clipart / Text | 500 | 65 | 100 | ||
| Deep Engrave | 500 | 30 | 100 | ||
***Ask for approval/assistance for the exact plastic you want to engrave.
