Colored annealing keyring with MOPA-Laser

Learn in this tutorial how you can create colored annealing on stainless steel with a MOPA laser.


What you will require

1 x Stainless steel key ring

Trotec Machine used

You may also use any other machine of the SpeedMarker series, Speedy fiber or Speedy flexx.


The alloy on the material used will determine the results on stain less steel. A slight varience is possible. 
You are advised to adjust the width pulse in order to achieve the different colours. Black colour markings can only be achieved when a standard fiber laser of the SpeedMarker Series, a Speedy fiber or Speedy flexx is used.


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Step by step

Step 1

Step 1: Design

Download our laser ready template or create your own. Import the PDF with layers into SpeedMark and assign parameters and fillings to the object.


Define the parameters in advance.

Filling For Fill Style Line Distance [mm] Additional
Text cross lines (bidirectional) 0.003 -
Letters Bidirectional 0.03 -
Lines Bidirectional 0.001 -
Dots Bidirectional 0.001 Optimize filling
Wind rose Bidirectional 0.001 Optimize filling
Border None - -
Step 2

Step 2: Laser process

Insert the parameter settings into your printer diver. Please note that they may differ depending on your laser machine used and laser power.

Position the work piece with the help of border marking.

Laser parameter Process Power [%] Frequency [kHz]
Text Marking 50 150
Letters Marking 60 60
Lines Marking 60 189
Dots Marking 84 261
Wind rose Marking 54 260
Border Positioning - -
Speed [mm/s] Pulse width [ns] Passes
1000 200 1
2000 200 2
2000 8 1
2000 100 1
2000 100 1
- - -
Step 3

Step 3: Post processing

Not required.

Speedy series
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