Dear all,
I am happy to share with you a program I created called “Picture Laser”.
Picture Laser is a program specifically created for laser engraving halftone pictures with the Makeblock XY Plotter V2.0 (Orion Board version!).
For more information (and to download the program goto my website).
Is still have some ideas on improving it. Also I want to add some more help into the program.
Feel free to share any findings. I like to hear from you. 
Kind regards, Klaas