OMG Laser 100W JPT MOPA Fiber Laser

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OMG Laser 100W JPT MOPA Fiber Laser
Name Magneto
Zone Laser Cutter
Reservation Address LinkURIs of the form "TBD" are not allowed.
Owner i3Detroit
Make Model OMG Laser 100W JPT MOPA Fiber Laser
Part Number
Date Acquired 01/21/2026
Storage Location Laser Zone Near Member Storage
Authorization Required Yes
Status Down
Value $7,290


Power Requirements 120VAC
Documentation
Other References


Intro

The OMG Laser 100W is a high-power fiber laser designed for industrial-grade marking and engraving. It utilizes a MOPA (Master Oscillator Power Amplifier) source, which allows for precise control over pulse duration. This makes it more versatile than standard fiber lasers, enabling it to perform specialized tasks like color marking on stainless steel and high-contrast marking on plastics.

At 100 Watts, this machine is built for speed and depth. It is capable of rapid material removal for deep engraving and can precision-cut thin metal sheets.

Primary Capabilities

  • Surface Marking: High-speed marking of logos, barcodes, and serial numbers.
  • Color & Contrast: Creating a range of colors on stainless steel and "true black" marks on anodized aluminum. Can also anneal metals.
  • Deep Engraving: Removing significant material for 3D reliefs, coins, and stamps.
  • Thin Cutting: Cutting precious metals (gold, silver, brass) up to approximately 1.5mm thickness.
  • Rust Ablation: Remove rust from metals

Compatible Materials

Important: This laser is specifically for metals and plastics.

  • Metals: Steel, Stainless Steel, Aluminum, Brass, Copper, Titanium, and Tool Steel.
    • Can engrave through / remove anodizing, powder coat and enamel.
  • Plastics: ABS, Polycarbonate, PBT, Silicon, and other engineered polymers.
  • Other: Slate, stone, and certain dark ceramics.

Banned Materials

These materials are incompatible or may damage the work surface.

  • wood
  • clear glass
  • translucent or clear acrylic
  • organic materials

Rules

This laser is currently in the trainer-training / materials testing stage.

If you have something you'd like to try on it, ask Alex Zurowski, or one of the trainers-in-training such as Rose Hooper.

Instructions

Focus

This is the distance from top of workpiece to the focus line on the galvo head.

  • 70 mm lens = 214 mm
  • 150 mm lens = 356 mm
  • 300 mm lens = 581 mm

There are masonite sticks for helping focus 70mm (214mm stick) and 150mm (346mm stick). Align them to the focus line and the top of your object.

Cleanout Passes

  • For Deburring:
    • You want high speed (e.g., 2000–3000 mm/s), high frequency (80kHz+), and low power (10–20%). Drop the pulse width to a very short duration. This effectively vaporizes the raised slag and cleans the carbon out of the bottom of the trench without cutting any deeper into the base metal.

Maintenance Info

FAQ

Learning Resources

Lightburn

Fiber Laser Basics

Fiber Laser Advanced Knowledge

Rotary Functions

3D Engraving & Depth Mapping

Color & Black Marking

Post Processing Material

  • There's not a lot of good content on post processing of engraved materials. You're going to find out that many (especially deep) engravings don't look all that great when they first come off the laser. A lot of people put their objects into magnetic tumblers or other automated polishing tools to help knock off slag and smooth out engravings. I will try to find some resources to put here but for now the best advice I can give:
    • The #1 tool of choice for cleaning your engravings is going to be steel wool.
    • Use some machine oil with a stiff bristle toothbrush for light cleaning.
    • For heaver cleaning:
      • Use a Brass brush with water and some burnishing compound
      • Scotch Brite pads on a die grinder
      • Use a random orbital sander starting with 220 grit and moving up (this is the extreme example and will require more polishing and post processing if you do this)
    • High grit wet sand paper is another great tool to use to clean up the surface of your engravings and debur the edges but this only works well on single depth engravings on a relatively flat surface.
    • Don't use microfiber cloths or any fibrous cloth to clean your engravings. The fibers will get all caught up in the microscopic slaggy bits of your engraving and you'll never get them out. Use nylon or polyester napkins if you want to do any wiping of engravings.
    • Dremels and polishing wheels / compounds will also be your friend here.
    • If you're working with materials like polished/mirror finish metals and post-processing would ruin them, opt for more passes at lower power & higher frequency. It'll take longer but you'll get less slag build up and less of a need for post processing.

ToDo

  • Create User Training Outline and Program
  • Build Container box
  • Acquire small file cabinet for storage under desk
  • Autostart VLC on second monitor (RPi3)
  • Add light to enclosure to help cameras
  • Develop Final Rules
  • Program a exhaust fan button to put by the machine
  • Create a permanent mount for in-machine webcam
  • Assemble black worktable
  • Build a Deburring / engraving cleaning kit:
    • Dremel with polishing compounds and polishing discs.
    • Brass Black
    • Wet Sand Paper
    • Steel Wool
    • Brass Brushes
    • Stiff Bristle Brushes
    • Machine Oil
    • Burnishing Compound
    • Nylon/Polyester Napkins
    • Scotch Brite Die Grinder Pads (Or similar for use with dremel)
  • Save up for Magnetic Tumbler
  • Motorize focus knob for ease of use

Authorized Users and Trainers

Trainer Name Certified Date
Alex Zurowski 02/09/2026
User Name Authorized By Date of Most Recent Training


Additional Info

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