Release-mechanism

How To : Make a trigger-operated paper gun

This is an instructive guide to making a trigger operated paper gun. You will need an A4 sheet of paper. Start by rolling the sheet of paper horizontally (breadthways) and as tightly as possible, . Once the roll is completed, attach 3 lengths of sticky tape at each end and the ...more

How To : Make a fast and easy tennis ball trebuchet

In this tutorial, we learn how to make a fast and easy tennis ball trebuchet. This tool will throw tennis balls easily so you can hit them without having a partner around. This only needs a few pieces of wood and 2x4's along with dumbbells. There isn't a whole lot to this, it' ...more

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