At Techshop, I loaded the drawing into CorelDraw and changed the colors of the lines to red where I wanted the part cut out and black for the parts I wanted engraved.
I then just went to the "print menu, print" and the file loaded to the laser software where I chose the material of balsa wood and the thickness of 0.125 inches or .0625 for the thickness of the balsa.
It engraved the word "techshop" and then cut out the balsa parts.
What I learned was that I need to design in a "kerf compensation" of about .005 inch to allow for the balsa wood that the laser burns away so that the parts will fit perfectly. So the next time I cut it out I will try that. No matter what the material, if you want a perfect fit you will need to use a kerf compensation.
They flew well with some clay on the nose for added weight.
I've included the dxf file which has lots of extra parts on it.
I couldn't have done it without the lasers at www.techshop.ws