Discover how to Master Silicone Laser Engraving!
Welcome to another Material Minute! In this post, we’re exploring the capabilities of the Monport Onyx 50W CO2 laser engraver on 0.75 mm silicone, testing its precision and performance. By experimenting with different power and speed settings, we reveal the optimal parameters for achieving clean, sharp engravings on this flexible material. Whether you’re a seasoned maker or just diving into laser engraving, this guide offers practical insights to refine your craft and elevate your results.
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| Setting | Value |
| Material | 0.75 mm Silicone |
| Power | 20% to 100% |
| Speed | 50 mm/s to 500 mm/s |
| DPI | 254 |
| Line Interval | 0.1 mm |
| Air Assist | 5 PSI |
| Frequency | 20 kHz |
| Passes | 1 |
Final results of cut test on 6.35 mm MDF.
Analysis & Observations on Engraving 0.75 mm Silicone
Optimal Engravings:
The best engravings were achieved at 50%–70% power and 250–350 mm/s speed, producing crisp and clear markings. These settings delivered excellent visibility and consistency, making them ideal for detailed designs on 0.75 mm silicone.
Overburn & Distortion:
Higher power levels (90%–100%) at slower speeds (50–100 mm/s) caused excessive melting and warping, leading to distorted engravings. These settings should be avoided to preserve the material’s integrity and achieve clean results.
Light or Inconsistent Engravings:
Lower power settings (20%–40%) combined with faster speeds (300 mm/s and above) resulted in faint and uneven engravings. These settings are unsuitable for creating visible or detailed designs but could work for light etching or subtle markings.
Air Assist Impact:
Using air assist at 5 PSI helped prevent material scorching and ensured cleaner results by removing residue during engraving. It also improved the sharpness of edges across the grid.
Line Interval and DPI:
The 0.1 mm line interval and 254 DPI settings offered excellent precision and uniformity, creating consistent results while minimizing over-marking or material wear.
Recommended Settings for 0.75 mm Silicone:
- Power: 50%–70%
- Speed: 250–350 mm/s
- DPI: 254
- Line Interval: 0.1 mm
- Air Assist: 5 PSI
- Frequency: 20 kHz
These parameters ensure high-quality engravings with minimal distortion, making them perfect for intricate designs and professional results on thin silicone sheets.
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