Hello! In this instructable I will introduce the basics of curved paper folding. You'll need the following to get started:
-medium weight paper such as Canson Mi-Teintes
-implement for scoring paper
Step 1: Choosing a Scoring Implement
Any number of household items can be used for scoring the paper. Nails, exact-o blades, compass points, safety pins, the list goes on... The important thing is that implement chosen does not tear the surface of the paper or cut through it. For this instructable I used the end of a T-pin in combination with the body of a mechanical pencil.
Before starting on the project, I did a few tests to compare the effectiveness of a nail and the T-pin. I found that the T-pin tore the rough side of the paper I was using but worked well on the smooth side of the paper, providing a crisp, sharp edge. The nail worked fine but made a less defined edge.
Step 2: Folding
When making curved folds I find its best to use a medium weight paper as the paper tends to stay in its desired shape better. For my piece I used Canson Mi-teintes drawing paper, which is available at most art stores.
Begin by drawing a series of curves on the paper until you are happy with the design. Using a scoring implement, follow the lines to create a guide for the curved folds. The process of folding is quite easy but it may take some time to develop familiarity with it. Start at an end of one of the curves and begin folding little sections of the curve at a time until you have folded along the entire length. I find that things can get difficult once multiple curves have been folded. In these cases it may be best to flatten the whole piece of paper and work on the lines that were troubling. When the piece is complete try placing it in different lighting conditions that highlight the folds.