Laser Cutter
Due to the delicate nature of the laser cutter, its high operating cost, and high-value consumable materials, use of the laser cutter is limited to members of NSL in good standing.
Do not use the laser cutter, member or not, unless someone who knows what they are doing has given you permission to do so. There is almost always someone present who can show you how to use the laser cutter properly.
Verify proper chiller and exhaust fan operation before every run to avoid blowing up the laser cutter or asphyxiating all of NSL. If you kill us all, we won't like you very much.
Maintenance
Do not place or leave food or drinks on top of the laser, empty or not.
Do not stack your cast-offs, left over bits, or test material on top of or around the laser cutter.
After Every Use
Clean off the bits that are left over on the honeycomb.
Clean off the table under the honeycomb and/or razor.
Wipe down the razor and table with a cloth.
Frequently
Wipe down the inside of the laser in areas away from grease and moving parts. (Table, walls, etc…)
Check inside the lower drawer below the table and clean.
Remove the honeycomb and clean it out with compressed air outside of the building.
Pre-Cut Checklist
After you have prepared your program on the PC and are ready to begin…
Ensure the laser cabinet is free of obstructions which may damage the mechanisms or head
Close the cabinet
Power on the laser cutter
Power on the exhaust fan via the power strip on top of the chiller
Verify the exhaust fan is functioning properly
Exhaust should be blowing outside of the window. Check for blowback or leaks.
When the laser cabinet is closed noticeable suction should be present around the front of the cabinet
Power on the chiller
Check for the ALARM light on the chiller. It should be off. If it is on the chiller needs maintenance.
Double-check every again.
Materials
We Can Cut
Plastics
ABS (acrylonitrile butadiene styrene)
Acrylic
Plexiglass, Lucite, PMMA
Two-tone acrylic — top color different than core material, usually for custom instrumentation panels, signs, and plaques.
-
Kapton tape (Polyimide)
Mylar (polyester) - Available at Office Depot as “Laser Transparency Sheets”
Nylon — melts badly
PETG (polyethylene terephthalate glycol)
Polyethylene (PE) — melts badly
Polypropylene (PP) — melts somewhat
Styrene
Foams
Other
Cloths (leather, suede, felt, hemp, cotton)
Magnetic sheets
Papers
Rubbers
Teflon (PTFE, Polytetrafluoroethylene)
Woods (MDF, balsa, birch, poplar, red oak, cherry, holly, etc.)
We Cannot / Should Not Cut
DO NOT CUT ANY MATERIAL CONTAINING CHLORINE. Chlorine gas can kill you, but more importantly it will damage the laser!
Any material containing chlorine
Metals
Polycarbonate (PC, Lexan)
PVC (Cintra) — contains chlorine
Vinyl — contains chlorine
Glass — we can engrave glass, but we cannot cut it.
Fiberglass
Printed circuit board (FR4 and other material types)
Carbon fiber
Pictures with some acrylic colors
Moleskine book covers
Materials Settings Chart
Cutting
Material | Thickness | Speed | Power |
Acrylic | .093“ | 20 | 45 |
Blue Acrylic | .1181 | 20 | 80 |
MDF | .1181 | 20 | 60 |
Plywood | 5.2mm | 8 | 90 |
Rubber | 4 | 8 | 12 |
Mylar Sheet | .002 | 10 | 300 |
Cheese | 5 | 10 | 15 |
Pine/Poplar | 1/2” | 3mm/s | ?? |
Oak | 3/8“ | 6mm/s | ?? |
Please update this list with UNITS and additional materials after every new cut or test.
Engraving
Material | Speed | Power |
Acrylic | 300 | 40 |
MDF | 300 | 10 |
Please update this list with additional materials after every new engrave or test.
Sample Etches
Laser Cutter Upgrades