Rather than using counterweights like the later versions, I decided to use muscle-power and make a traction trebuchet.
Again, it's just a single sheet of A4, but you need two cocktail stick this time.
(I have posted this without a firing video because certain members have been nagging me to get it posted. I will do a video as soon as I can.)
Step 1: The Template
More useful for you, dear reader, I have also included a re-drawn PDF and JPEG of the template. Use whichever you desire (the JPEGs are probably the easiest to re-size, should you need to).
Print the template out on either normal 80gsm printer paper, or light (120gsm) card. If you print or photocopy to a size larger than A4, then I recommend using card instead of paper. If you use card but make it smaller, then careful scoring of crease lines will be required.
You will also need two cocktail sticks, gluestick, a paperclip, stickytape, pliers, sewing thread and small weights such as nuts or modelling clay.
Step 2: Preparation.
Crease all the dotted lines. If you are using card, or making a small version, then you will need to score the lines before creasing. Using a ruler, drag the tip of a blade of a knife gently along the line. You are scratching the surface, not cutting.