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.ÿþGearwheel Maarten van Gelder © 1990 AugOne gearwheel is constructed from several segments.One sheet of paper per segment.The segments are put together by slitting the last tooth of each segment in the firsttooth of the next segment.By this overlap you loose teeth, but it will fix the gearwheel.Divide the paper horizontally and vertically in 8, 16, 32 or 24.The number of teethper segment is one less than half this division: so dividing in 16 gives 7 teeth(from each segment one tooth is hidden in the next segment).^^Crease line through the center of the paper1 Colored size up.Precrease: divide the paper horizontally and vertically in 8, 16, 32or 24.Then make vally and mountain folds as indicated.For the dotted lines you may make mountain or valley folds as you please.2 Side view of a folded segment.The dotted lines show where the (hidden) folds are.The teeth are at the right; the left side becomes the center of the gearwheel;the (in the drawing) upper and lower side are the sides of the gearwheel.3 In the diagram the mountain and valley folds are indicated.Two segments are coupled by slitting the upper tooth of one segment in the lowerTo get a nice running set of gearwheels varying in size you need to experiment withtooth of the next segment.All folds of these two teeth should coincide.number of segments.Closing the gearwheel (the last overlap) is the most difficult action!The large wheel in this set has 6 segments, that are divided in 16 x 16.So the totalamount of teeth is 6*(16/2-1) = 42.The real set I made has a motor driving the small wheel, so the total set is movingcontinuously [ Pobierz caÅ‚ość w formacie PDF ]