Automatic Potion-tipped Arrow Making Machine (15w44b only)

Here is a redstone machine for automatically creating up to 300 tipped arrows from a single lingering potion in the Minecraft 1.9 snapshots.

If you want to try it out for yourself, either follow the tutorial in the video or use this schematic to add it to your world.

WARNING: This machine was broken by the glitch fix in snapshot 15w45a. It will now only make 6 tipped arrows - the maximum possible from one potion.

For a newer machine that makes potion-tipped arrows, see this project link - it performs a lossless conversion of potion-tipped arrows and can be used while AFK.