To make ice for a snow cone machine, you can follow these general steps:

Fill ice cube trays: Start by filling ice cube trays with water. Make sure to use clean, filtered water for the best quality ice.

Freeze the trays: Place the filled ice cube trays in the freezer and allow them to freeze completely. This usually takes a few hours or overnight, depending on your freezer's temperature.

Remove the ice cubes: Once the ice cubes are fully frozen, remove the trays from the freezer. Gently twist or tap the trays to release the ice cubes. If you're having trouble removing the ice cubes, you can run the bottom of the trays under warm water for a few seconds to loosen them.

Crush the ice: Take the ice cubes and crush them into smaller pieces suitable for a snow cone machine. You can use a blender, food processor, or even a manual ice crusher to achieve the desired texture. Alternatively, some snow cone machines come with built-in ice crushers.

Fill the snow cone machine: Fill the ice reservoir or chamber of the snow cone machine with the crushed ice. Make sure not to overfill it, as this can affect the machine's performance.

Make snow cones: Turn on the snow cone machine and follow the instructions provided by the ice machine manufacturer to create your delicious snow cones. Typically, the machine will shave or grind the ice into fine, fluffy snow-like texture, which you can then scoop into cups or cones.