3D laser engraving

[velocitygraphix]

Hello everyone! After purchasing the very nice Pinnacle, I am slowly learning more and more. It keeps getting better, and my love deepens...lol. I am now attempting to do the 3D engraving that is shown in the video of the M series. I wanted to know if anyone else recommends a particular type of wood and power speed settings. I have found pretty goods settings for most materials, and regular 2D photos for wood, mirror, glass, and acrylic. I wanted to try the 3D effect, and give some relief to my art. I know that it sets the black at the Highest power setting that I give it, and white at 0, and then adjust the shades of gray based on the darkness or lightness. Just wondering if one wood was better, or if anyone has even tried this. It looks pretty neat, and I am sure people would want items like this. Any advice would be great. Thanks!!