A4 paper folding helper

thingiverse

Sometimes you'll need to fold an A4 sheet in half, especially when printing four pages on one double-sided A4. That's where this little tool comes into play, making your life a lot easier. To assemble the tool, you'll need a small coin or washer. Once assembled, place a test piece of paper inside and check if it fits properly. If not, use a paper knife to trim the adjustment cube on one side. You don't need to ensure a 90-degree angle when connecting the sides. The tool works just as well with only one side connected, either left or right. Additionally, you can place the top block on either the left or right side of the tool. Now, let's move on to using the tool: Step 1: Assemble the tool fully or in half. Step 2: Place a paper sheet inside and make any necessary adjustments. Step 3: Put the top block in place. Insert your finger between the top block and the opposite adjustment cube to guide it into position. Step 4: While holding the top block, slide a 45-degree tilted coin or washer across the entire page. Step 5: You'll now see a clear folding mark on the paper. Step 6: Adjust the corners while folding to achieve a perfect fold. Repeat steps two through six for each additional paper sheet.