There is not too much to this: 8 cut satay sticks and 6 longer ones (plus one very short length) some cotton thread, and PVA glue. Start every join with a blob of glue to stop the thread from slipping. Note the amount of overlap when crossing sticks. Finish every thread binding with a good smear of glue to save tying a knot. It's much quicker and creates a stronger join.
Occasionally you may find it hard to hold the frame and bind the cotton at the same time. A second person may be of great help if they hold it for you when it is tricky.
Note the triangle sides are to "mirror" themselves. You might have to actually make one just to get it right the next time around. Peter certainly had to do that a number of times till he settled on this version here.
Note the movable (throwing) part has a critical 'axle' measurement so that it keeps in its place when assembled later with the rubber band.
Slip on the rubber band over the top of the catapult frame before or after positioning the throwing part. This rubber band should keep the moving part from coming loose. To shoot, simply place a small object just above the short stick on the throwing part and pull back, holding the catapult base with the other hand, and then let go the end. The catapult is not designed to be dangerous and should throw a small object over a distance of one or two metres. A heavier throwing object will travel only a short distance due to its weight.
There is not too much to this: 8 cut satay sticks and 6 longer ones (plus one very short length) some cotton thread, and PVA glue. Start every join with a blob of glue to stop the thread from slipping. Note the amount of overlap when crossing sticks. Finish every thread binding with a good smear of glue to save tying a knot. It's much quicker and creates a stronger join. 
Occasionally you may find it hard to hold the frame and bind the cotton at the same time. A second person may be of great help if they hold it for you when it is tricky.
Note the triangle sides are to "mirror" themselves. You might have to actually make one just to get it right the next time around. Peter certainly had to do that a number of times till he settled on this version here. 
Note the movable (throwing) part has a critical 'axle' measurement so that it keeps in its place when assembled later with the rubber band.
Slip on the rubber band over the top of the catapult frame before or after positioning the throwing part. This rubber band should keep the moving part from coming loose. To shoot, simply place a small object just above the short stick on the throwing part and pull back, holding the catapult base with the other hand, and then let go the end. The catapult is not designed to be dangerous and should throw a small object over a distance of one or two metres. A heavier throwing object will travel only a short distance due to its weight.
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