Dice stacking is the art of using a cup to stack dice. There is no trick, but a scientific principle, inertia. The dice are first picked up by the cup, and because of the motion of the cup resist movement like a bucket of water swung around. As a result, the dice stack inside the cup and slide around as if they were a single mass.
Step 1: What You Need
- A cup
- Heavy casino dice / standard dice / rounded-edges dice
- Speed stacks cup / yahtzee cup / short plastic cup
Step 2: How This Works
See below for 2D picture example
Step 3: Picking Up the Dice
First, approach the dice at a 45 degree angle. Sharply switch directions as you strike the dice, as it rises to the top, hold the cup at an almost 90 degree angle. Repeat this process until all the desired dice are in the cup. Its similar to cradling a lacrosse ball. For reference, look at my video on the introduction.
Note: Practice this away from windows until you master it. I am not responsible for broken windows or black eyes.
Step 4: Stopping the Dice
Now, to stack the dice, you finish your current swing, and then slide the cup along the ground as if it were another swing. You almost fool the dice into thinking you just swung the cup again. Then you stop short.
Its very difficult to explain. The most important thing to get out of this is that you need to stop short. It takes practice. A LOT of practice. If you need help, watch videos on youtube. They are a big help.
Step 5: Variations
Point stops - Stopping the dice on small areas, usually Rubik's Cubes or other stacks.
Downstacks - Stacking dice, then removing dice with the cup one by one.
All-in-one - Grabbing all the dice in one swing, than stacking them.
One person that can really push the limits of dice stacking is Dennis. He is the pioneer of dice stacking, and he is just amazing.
Step 6: Perform!