===== 1st Step, Etching text on the wood =====

Start etching with Using Retina Energy. 

**thin:**

\\ {{::20160606_173640.jpg?300|}} \\

**medium:**

\\ {{::20160606_173630.jpg?300|}} \\

**thickest:**

\\ {{::20160606_173650.jpg?300|}} \\

 I tried to etch the DSAL. When I tried to first time, Only I could etch thickest wood. so I made laser's strength double, but It was not working. but When I controlled Z axis, I could close the distance between wood and laser, so It was working.

 so. Wood's thickness is not problem to etch because I can control the distance.