this is an updated version of the cannon.
Step 1: REQUIRED ITEMS
the items required to make the cannon are
- obsidian - 22 blocks
- redstone - 13
- lever - 1
- water - 1
- redstone repeater - 4
- any halfslab - 1
Step 2: Making the Frame
you will have to place 19 blocks of obsidian as shown in the image.
Step 3: Placing Water
put the water block on the closed end of the frame.
Step 4: Placing Half Slab
place the halfslab at the open end of the frame.
Step 5: Hard Part(very Important & Veeeeeeeeeeeeeeeeeeeeeeeeeeery Hard)
make shure you do this step precisely as shown in the images.
Step 6: Ammo Holder
place 2 obsidian blocks side by side on the open end of the frame
Step 7: Arming the Trap Step
do everything as shown in the images