Series Support
FM Series Support
Support resources for the FM fiber markers — setup, lens selection, and marking quality for permanent metal marking and deep engraving.
The FM Series user manual covers setup and operation for the fiber marking systems.
Marker quick fixes
Try these first.
Each quick fix includes a short explanation, a first action, and a guide when available.
Try this first
Mark Too Light / No Contrast
Low contrast is usually power, frequency, speed, or focus height — not a hardware fault.
- Adjust power, frequency, and speed together.
- Confirm focus height for the material.
- Test on scrap before committing to the part.
Try this first
Not Firing / No Mark
No mark at all points to the source, interlocks, or red-dot alignment before any parameter change.
- Check the source and interlocks.
- Confirm red-dot alignment to the mark area.
- Verify emission and Q-switch settings.
Try this first
Focus & Lens Selection
The lens sets your field size and spot. Match the lens and Z height to the part before troubleshooting the mark.
- Match the lens to the field size you need.
- Set the correct Z / focus height.
- Confirm focus with the gauge or ramp test.
Guides
Support references for marking.
Step-by-step guide pages you can work at the machine.
FM Series model support
Choose your model.
The model page adds owner-facing tests and model-specific downloads for that exact machine.
FM Desktop
Desktop fiber-marker support for setup, lens selection, focus height, and marking-parameter troubleshooting.
FM Station
Enclosed fiber-marking-station support for setup, safety interlocks, lens and field selection, and marking quality.
Common questions
FM Series FAQs.
Which manual covers my FM system?
The FM Series user manual at the top of this page covers the fiber marking systems. Open your model below for any system-specific references.
My mark is too light — what do I change?
Start with power, frequency, and speed together, then confirm focus height for the material. Test on scrap before running the part.
What lens do I need for my field size?
A larger field size needs a longer focal-length F-theta lens, while a smaller field with a shorter lens gives a finer spot and more detail. Match the lens to the part in the lens and field-size guide.
Still need help?
Contact Boss Laser technical support.
Include your marker model, serial number, the material, the lens and settings, a photo of the mark, and which checks you completed.