Clean Burn Marks on Wood with F2 Ultra UV

I started by cutting several woods using the F1 Ultra with the recommended cutting parameters in the software.
During the cut, I noticed clear burn marks and sparks, which are because of thermal scorching, I really hate this kind of charred black color!

Next, I switched to the F2 Ultra UV to clean up the burn marks. I casually drew a cube  over the snowflake and began the engraving process.

At first, I used someone else's repair settings. I processed the wood once, but there wasn't much change. After 3 more attempts, the wood seemed to be engraved, turning slightly yellow. So, I started experimenting with adjusting the settings.

After several attempts, I finally found the trick to avoid turning yellow: Lowered the power & Increased the speed. These changes helped a lot with reducing the yellowing effect.
Final parameters I used: 

👉 Power: 60 👉 Speed: 1200 👉 Passes: 3

As you can see, the color of the cube engraving is much lighter compared to the previous one. 

 I'm excited to see the final results with my adjustments!! Below is a comparison before and after the clean.

This method saved a lot of sanding and cleaning time and gave me a more even color. I guess It’s especially useful for thin or delicate parts where polishing might damage edges or fine details.
However, a few things to note: There may still be a slight color change, and overly burned areas can’t be fully removed.

I also cut a snowflake using only the F2 Ultra UV directly, and the results were incredibly clean. The cutting surface showed the natural wood texture without any burn marks, and the efficiency was much higher compared to any other method. I absolutely love how F2 Ultra UV handles wood!