4mm Genuine Leather Cutting Test with Monport Onyx | Material Minute
Welcome to another episode of “Material Minute”! In this post, we showcase how the Monport Onyx laser engraver performs a cutting test on 4mm genuine leather. Using a range of power and speed settings, we evaluate how this machine achieves clean and efficient cuts on leather. Whether you’re a laser enthusiast or a creator fine-tuning your techniques, this guide will help you discover the ideal settings for cutting leather. Scroll down to see the test results and recommended settings in action!
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| Setting | Value |
| Material | 4mm Genuine Leather |
| Power | 20% to 100% |
| Speed | 5 mm/s to 50 mm/s |
| DPI | 254 |
| Line Interval | 0.1 mm (0.004 inch) |
| Air Assist | 5 PSI |
| Frequency | 20 kHz |
| Passes | 1 |
Final results of cutting tests on 4mm Genuine Leather.
Analysis & Observations on Cutting 4mm Genuine Leather
Effective Cutting Across Multiple Passes:
- Pass 1: Single-pass cutting with power levels of 60%-100% at speeds of 5–10 mm/s showed partial penetration but required additional passes for full cuts. These settings performed well for outlining and initial scoring.
- Pass 2: Two passes at the same power and speed settings achieved cleaner cuts, particularly with 70%-90% power at 5 mm/s. Slight edge burn was noticeable, but it remained manageable.
- Pass 3: Full penetration was consistently achieved with three passes, especially at 70%-100% power and 5–10 mm/s speeds. These combinations resulted in clean edges with minor charring, making them suitable for precision cutting of thicker leather pieces.
Overburn & Excessive Charring:
Using 100% power and very slow speeds (5 mm/s) during all three passes caused significant edge charring and burning, leading to rougher edges. These settings are best avoided unless a rustic or heavily marked effect is desired.
Shallow Cuts on Higher Speeds:
Speeds of 25–50 mm/s produced incomplete cuts even after three passes, particularly with lower power levels (20%-50%). These settings are more suitable for light scoring or decorative surface cuts rather than full material penetration.
Air Assist Impact:
The use of 5 PSI air assist minimized smoke buildup and helped maintain cutting clarity by blowing away debris during the process. This resulted in cleaner edges and less discoloration.
Line Interval and DPI:
The 0.004-inch (0.1mm) line interval and 254 DPI setting ensured sharp and consistent cuts, highlighting the Monport Onyx’s ability to produce precise results on leather.
Recommended Settings for Cutting 4mm Genuine Leather:
- Power: 70%-90%
- Speed: 5–10 mm/s
- Passes: 3 for full penetration
- Line Interval: 0.004 inches (0.1mm)
- DPI: 254
- Air Assist: 5 PSI
- Frequency: 20 kHz
These settings strike the right balance, ensuring clean cuts while minimizing charring and achieving consistent results across thicker leather projects.
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