Triceratops by Jerry Harris - Origami

1 Triceratopsby Jerry HarrisBegin with a square, white side up, with the vertical diagonal precreased. A square of 10" results in amodel of approximately " long and " tall at the fold the left edge in half,creasing only at the very edge, fold 1/4 at the left side, againcreasing only at the edge, and fold 1/8 at the left side, againcreasing only at the edge, and unfold. This is the mark that is referred to inStep fold lower angle bisectors tothe center and fold, connecting the tops of theangle bisectors, and fold through a point 2/3 the waybetween the top point and the creaseconnecting the angle bisectors (madein Step 5)

2 And fold the top point down so the1/8 mark from Step 3 touches the2/3 line from Step fold the top corners in tothe center, creating a smallpreliminary base at the the angle bisectorsthrough the new flaps at the topand fold the top point down,connecting the tops of the fold the loose corners atthe sides fold the top corners in tothe center, creating anotherpreliminary base at the fold the lower left side of the preliminary base atthe top in half. As you do this, you will have to squashthe flap underneath, folding the inner edge of thecolored flap to the outer result.

3 The first small preliminary base should layperfectly between the edges and the center, forming1/4 of the larger one (made in Step 12). Valley fold theangle bisector at the top, using only the top flap andunfold (the model will not lay flat as you do this). Turnover from fold the corresponding angle bisector on theback. The paper will not lay flat as you do this, andyou'll have to crease the top part and bottom partseparately. fold the right side on the fold you just , the paper will not lay flat. Turn back over the broad, raised point.

4 The model will still notlay flat, but will be concave instead of fold the now concave flap down along thecrease made in Step 14, and flatten the result. Fold the flap containing the smallpreliminary base back down to the Steps 13-19 in mirror image on the right the square at the top as a preliminary fold the bottoms of the long, rectangular stripsto the center line and the angle of the lower end of therectangular flaps. Note that the long, innermost foldsconnect to the angle on the outside edge of the fold the left flap on the long, innermostquadrisection only the uppermost flap of the reverse fold, beginto fold it up to match the top point of the model.

5 Thenext few steps show more folds being made while thisis being you continue to fold the point up to the top, youmust push in the layer beneath it. The valley foldbeneath that is on an existing the point is closer to the top. Using existingcreases, fold the flap down to the left. It still won't the model by valley folding the raised flapdown to the center line. The bottom half of this foldoccurs on an existing crease result. Repeat Steps 24-28 on the right the uppermost, double-thickness top layer to theright to expose the hidden layer beneath.

6 The paperwill not lie the thick, hidden flap by valley folding its loweredge to the center the model over the hidden flap the uppermost, single-layer top flap to the left,exposing another hidden flap (this is the same view asStep 28). the hidden flap. This will lock the fold of thehidden flap folded in Step the flap fold the top left point out to the left. The lowerend of the reverse fold line is located at the point atwhich the layers are locked point will be one of the front legs. Valley foldthe top layer of the point the lower flap under the layers of the Steps 30-38 in mirror image on theright over from fold the lower edges to thecenter line, bisecting its lowerangle, but only crease near thecenter of the fold the lower pointto the fold the left and rightedges of the uppermostpoint to the horizontalbottom edge and unfold,bisecting the lower fold the uppermostpoint down through theintersections of the anglebisectors from Steps 41and the tail by folding the sides intowards the center line.

7 Note that thefolds do not go all the way to the tip ofthe point. As you do this, squash fold thegussets at the sides; they should line upwith the horizontal edge fold the whole thickness ofthe body along the edge of the flapat the base of the tail and next few steps focus in on thehead (the top assembly). fold the first pair of flapsinwards (as in a bird base). fold the next pair offlaps. The layer you can see inthis figure goes in all the way,but the layer beneath it doesnot, and the resultant edge result. Turn the modelover from side-to-side; thenext diagram is still aclose-up of the fold the whole body in half (right side under the left),incorporating the rabbit ear on the head end (close-up).

8 Rotatecounterclockwise 90 . the broad, thick points towards the tail (the hind legs)forwards. The mountain fold is on the crease you made inStep 46; the valley fold are new, and are not quite that the crimp does not progress all the way to the topedge. This will give the model a degree ofthree-dimensionality. Repeat the crimp the belly with a mountain fold. The front endof the fold should meet or go slightly past the rightedge of the front leg; the back end of the fold linecontinues under the hind leg, where you will have tosquash a gusset by folding the edge of paper to meetthe front edge of the leg (the folds inside the leg areindicated by the x-ray lines.)

9 Repeat reverse fold the front leg twice, curling themforwards. Double reverse fold a foot on the hind leg. Repeat reverse fold the tail, bringing it back up closeto horizontal. Reverse fold the tip of the front foot in toshorten it. Repeat the front foot fold fold the small triangle above the head (the frill)in half. Crease heavily, and the rabbit ear which forms the frill point (foldedin Step 50a), allowing the flap on the far side of themodel to swing upwards. The first small preliminarybase (from Step 9) will are going to make the frill larger by unfolding thepreliminary base.

10 Grabbing only the uppermost layer(at the circled point), pull it to the right. The thickerpoint (the one you folded in Step 55) will swingoutwards so that, in the diagram, it will be pointing outof the page towards you. The next diagram showsthis down the raised center point, using themountain folds formed by the valley fold in Step paper will be pulled out from the sides of the frillas you do this. The resultant flap won't lay the rabbit ear you unfolded in Step 56 thefolds should reform rather easily. The paper will nowlie fold the horns up as far a single layer down from the side ofthe snout; some paper will be pulled outfrom under the horn.