Mountain-fold the 4. Rating: 4 out of 5 stars. One of the most straightforward applications of grafting is to add ex- tra paper to the end of a flap, as we've done for tocs, fe ample, If the tip of the flap in question comes from the edge of the paper, rather than the middle, then we should add paper in the middle of the edge And there is much more variety in adding paper to a spot along the edge of the square, since there are sn infinite num- ber of locations along the square where we might perform our surgery. The result should be findit easier to do steps symmetric. Reverse-fold the two small comers to the right one in front, one behind
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