Lay the Mold Master against the foam slab and use the markings provided to draw the centerline, by inserting a pen and dragging it along the mold.
Measure the length, depth and angle of the proposed nose, tail, and concaves using the guides marked on the template.
Use the pen to draw lines, connect lines, measure angles and draw radius curves to guide you in shaping your foam slab into a custom skateboard/longboard mold.
For a detailed tutorial on using all the features built into the Mold Master, watch the video Marcel and Taryn have put together. (13 minutes)