Below are the calculations I have to make the wall of the zoetrope. The height of the slots needs to be the same height as the images, so I have made them 11.7 cm long and then 0.3cm wide, this is just the right size for the animation to work correctly and not cause any blur when spinning.
The length of the wall needs to be the same size as the circumference of the circle which is 125.6cm, it I will make it slightly longer so that I can stick it together easily.
The length of the wall itself is 25cm which is enough to have the slots are the right length and then 1 cm between them and the top of the wall, this is so that the slots are very close to the images when it is all stuck together. There will be a 0.6cm gap between the slots and the images. Each slot will be approx. 10.47 cm distance from each-other, this is the width of each frame.
Above are images of the laser printer which I used to cut the card to make the slots, this way they would be perfectly aligned and at the same distance from each other as well as being cut to a much better standard than if I was to do it by hand.