Building instructions for pin wheel

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Presentation transcript:

Building instructions for pin wheel

Assembly Instructions - Cut 2 pieces of thread > 40cm (allow for knots.) - Cut straw in half. Place around shaft. - tape the thread between the 2 pieces of straw. - place a push pin through each corner and the center of pinwheel. - carefully push the pin into the center of the shaft.

Measure twice , Cut Once!! 4 Blade pin wheel On the smaller file cover with a pencil draw a square 15cm x 15cm Draw the diagonal lines from corner to corner to find find the center. Cut in from the corners 2/3 of the way . Use push pins to make a hole in the corners and the center. 3 Blade pin wheel On a larger file cover with a pencil draw an equilateral triangle with a base of 22.8 cm Find the midpoint of each side and draw a line from the midpoint to the opposite apex. -Mark the center where the three lines intersect. - Cut from the apex 2/3 of the way to the center. - Poke the corners and center with a pin. 22.8 cm Write your names on each pinwheel.