What is the difference between a valley fold and a mountain fold?

What is the difference between a valley fold and a mountain fold?

Mountain fold arrowheads are different, as shown below. A mountain fold is the opposite of a valley fold – the paper folds to the opposite side. This means you either have to hold the paper in the air to allow paper to fold underneath, or simply turn the paper over and treat it as a valley fold. This is usually easier.

What indicates the location of a mountain fold?

A dash-dot-dot line indicates the location of a mountain fold. Sometimes one dot is used instead of two giving it a dash-dot-dash-dot pattern. A dotted line is often used to indicate an action that occurs behind the layers of paper.

What arrow will you use to show a valley fold or mountain fold *?

The Valley fold line is marked with a dashed line. A full head arrow shows which point moves to where. The arrow tail show the point that should be relocated (top right corner here) to the point that marked with the full arrow head (left lower corner). Mountain fold means the folded paper creates a mountain like shape.

What is a valley fold line?

The way I think of a valley fold is – the crease is at the bottom and the paper is folded forward into itself. The paper should form a “V” when you unfold. You may have other ways of defining a valley fold… In traditional origami diagrams, dash lines “- – – – -” represent valley folds.

What is a squash fold?

What is a squash fold? Basically, it is when you pry open the paper slightly, then press and flatten the paper to make the fold. Below are pictures of squash folds that for some of the origami models on this site. Squash Fold Example 1: This is an example from making a square base .

What is a valley crease?

The way I think of a valley fold is – the crease is at the bottom and the paper is folded forward into itself. The paper should form a “V” when you unfold. You may have other ways of defining a valley fold… For a mountain fold, the crease is at the top and the paper is folded “behind” itself.

What is squash fold?

What is a petal fold?

Petal-fold is used to convert a square base to a bird base. It can be used to other bases too. It always consists of the upper horizontal valley-fold, two lower triangular mountain-folds, and two flat-folds at edges.

How big is a valley?

Such valleys can be up to 100 km (62 mi) long, 4 km (2.5 mi) wide, and 400 m (1,300 ft) deep (its depth may vary along its length).

What does fold mountain mean?

Fold mountain. Fold mountains are mountains formed mainly by the effects of folding on layers within the upper part of the Earth’s crust. In the time before either plate tectonic theory developed, or the internal architecture of thrust belts became well understood, the term was used for most mountain belts, such as the Himalayas .

What is Mountain and valley fold in origami?

The difference between the two is the final positioning of the paper. Once creased in half, a valley fold is positioned with the crease facing down, touching the work surface and the edges facing up into the air. Mountain origami folds resemble little mountains, while valley folds resemble the letter V or a deep valley.

What is a valley fold?

A valley fold is one of the two folding methods used for creating origami , the other fold being the mountain fold and all other folds are basically variations of these two folds. The valley fold is easy to do but as it forms the basis of origami and the beginner may not know what it is referring to, this article aims to help.