Hello everyone,

I have designed a crease pattern for a model using adobe illustrator, but I have a problem; I am unable to locate and fold the necessary creases on a physical sheet of paper.

Essentially what I have an isosceles triangle located within a square with angles 45, 67.5 and 67.5. The apex point of the triangle touches the upper edge of the paper, the left angle touches the left side of the paper and the right angle touches the axial crease of the square sheet. This square is actually part of a larger crease pattern, but I need to be able to locate any of the points where the triangle touches the square edges or centre axial crease in order to actually make the model.

If someone can help me achieve the creases to make this triangle (or locate the triangle points on the square paper) it would be really appreciated. Thanks.