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• #ORIGAMI CRANE INSTRUCTIONS HOW TO#

When done preheating, make sure to take out the 9V battery. If you let the wire heat up for too long, it will burn out and stop contracting. Let the wire heat up for about 5 seconds, or until the wings stop curling. As the current flows through the nitinol the wire will heat up and contract, which causes the wings to curl up slightly. Touch the two dangling copper pieces together, to complete the circuit. Spread out the pieces so that the copper tapes on the wings do not touch and then connect a 9V battery to the battery holder. Step 11: Solder one thin wire with copper tape onto each wing, following the circuit diagram on the wing pattern These will be used later to make the switch Step 10: Cut two pieces of thin wire, about 10 cm (4″) in length and solder a small piece of copper tape onto each wire Step 9: Solder one end of the battery holder onto each wing One way to secure the thread to the paper is to sew a loop around the copper tape and tie off the end.īe careful not to cut through the stitches. Make sure not to sew through the copper tape when securing the end. Using the needle and sewing thread, sew the wire to the paper following the zigzag on the pattern. Step 7: Sew the nitinol wire to the paper It’s okay if the soldering iron touches the nitinol during this process, the goal is to make sure the crimp bead is firmly soldered to the copper tape. Then bring the two together and heat them until two mounds of solder melt and flow together. Step 6: Solder the crimp beads to the copper tape, matching the patternĪ trick is to first place a mound of solder onto the copper tape and place another mound of solder onto the crimp bead. Step 5: Tape the nitinol wire with crimp beads onto the patternįold the nitinol wire in half and tape down the bend so that it matches the pattern. Flatten the bead using the pliers so that it firmly clings to the end of the nitinol. Fold the end of the nitinol wire into a “u” using the pliers and the slip the crimp bead over. Since we cannot solder directly to the nitinol, we must use solderable crimp beads. Step 4: Attach crimp beads to the end of the nitinol wire Step 3: Cut the nitinol wire into two pieces, 20 cm (approximately 8″) in length Step 2: Cut out wing insert patterns along the dotted rectangle and stick approximately 2.5 cm (1″) copper tape onto the pattern

#ORIGAMI CRANE INSTRUCTIONS HOW TO#

There are step-by-step directions on how to fold an origami crane here and a good video tutorial here – needle Instructions Step 1: Fold an origami crane – thin wire (such as 29 AWG 392° F High-Flex Miniature Wire) – 40 cm (16″) 0.006″ HT Flexinol wire a type of nitinol wire that contracts when heated.įor more information on using Flexinol, visit here – 1 sheet 9″ x 9″ origami paper square (out of thin paper) Use shape memory alloy to make an origami crane that gently flaps its wings when you squeeze its tail.