Step 3: Cutting your paper
I used TechShop's epilogue laser cutter to cut my paper. I was making 2000 blocks. If you are only making one, or a few, using scissor may work for you.
To cut with scissors, simply follow the outline of the piece.
To cut with a laser cutter, make an outline path in illustrator. Stack the paper in the bed of the laser cutter. I did stacks of 10 to move quickly, but prevent fire. Too many pieces of paper will make it very easy for the stack to catch on fire, because it will contain many pockets of air.