So this tray is not strait on the sides and it has deep lip, this made lining up the laser quite difficult and then I had to scale down the size of the project because when doing the framing the laser head kept running into the side of the tray moving the project. So once I had the size down I found the middle of the tray by using a fabric soft tape measure (I know I know I forgot to take pictures, but I am getting better at this) I have found that my laser cross hairs are off by 1mm and I can not seem to get them to adjust properly so I just have to keep this in mind (my other laser heads are spot on only the 20W seems to do this) 

Now just engrave the picture on, add your sticks and S'mores and snack away!