![](/static_processed/47d290a3620add1412509469647e0bb2/.jpg?{"image":"https://backend.troteclaser.com/static/images/knowledge/diy-samples/keyring-mopa/keyring-mopa-laser.jpg","edits":{"resize":{"width":1280,"height":640,"fit":"cover"}},"outputFormat":{"format":"webp"}})
Color Annealing keyring with MOPA-Laser
Learn in this tutorial how you can create colored annealing on stainless steel with a MOPA laser.
Preparation
Required material
Stainless steel key ring
Machine used
- SpeedMarker 700
- 20 watt MOPA
- f254 lens
You can use any other machine of the SpeedMarker series, Speedy fiber or Speedy flexx.
Important
Depending on the alloy, the results on stain less steel can be different than the one shown in this sample.
To achieve different colors, the pulse width has to be changed. Therefore you only achieve black markings when using a standard fiber laser of the SpeedMarker Series, a Speedy fiber or Speedy flexx.
Step by step
![](/static_processed/fb6acc52907d45f7e9066984f22cf0ac/.jpg?{"image":"https://backend.troteclaser.com/static/images/knowledge/diy-samples/keyring-mopa/pdf-import-laser-software-speedmakr.jpg","edits":{"resize":{"width":650,"fit":"cover"}},"outputFormat":{"format":"webp"}} "pdf-import-laser-software-speedmakr.jpg")
Step 1: Design
Import our template or create your own design. Import the PDF with layers into SpeedMark and assign parameters and fillings to the object.
Tip:
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 | - | - |
![](/static_processed/504af905224504a2b0f3dea3b0bf96ff/.jpg?{"image":"https://backend.troteclaser.com/static/images/knowledge/diy-samples/keyring-mopa/mopa-laser-process.jpg","edits":{"resize":{"width":650,"fit":"cover"}},"outputFormat":{"format":"webp"}} "mopa-laser-process.jpg")
Step 2: Laser process
Now enter the parameter settings. They can differ depending on the laser machine used and laser power available.
Position the work piece using 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 |
| - | - | - |
![](/static_processed/5ca7f7d964e22e11a05d7eb6a8901ab1/.jpg?{"image":"https://backend.troteclaser.com/static/images/knowledge/diy-samples/keyring-mopa/engraving-colours-mopa-laser.jpg","edits":{"resize":{"width":650,"fit":"cover"}},"outputFormat":{"format":"webp"}} "engraving-colours-mopa-laser.jpg")
Step 3: Post processing
No post processing necessary.
![](/static_processed/5b58a61a467804661df93e96a66f70dc/laser-engraver-speedy-400-left.png?{"image":"https://backend.troteclaser.com/static/images/Laser_Machines/Speedy_Series/laser-engraver-speedy-400-left.png","edits":{"extract":{"top":142,"left":497,"width":933,"height":393},"resize":{"width":650,"fit":"cover"}},"outputFormat":{"format":"webp"}})
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