How to Build Working Gears from Junkmail and Cardstock

Step 3 Score Folds

For any dotted lines on the image, I highly suggest scoring these with a ballpoint pen or any semi-blunt object you have lying around. After a little practice, I've been able to use the back of my X-Acto Knife to score my folds. This will make it much easier to construct the gear once you're done cutting.