Hopper
While it appears deceptively simple (it's basically a box with a hole in it), the Hopper allows the construction of many advanced mechanisms. Any items that fall into the top of the Hopper are added to its inventory. If the Hopper receives Mechanical Power through axles mounted to its sides, it will begin to eject items from its inventory (and stop when the power is cut) out the spout below. Items may be ejected into the air, or directly into any other Block that has an inventory (chest, dispenser, Cauldron, etc.), and it is also capable of ejecting its contents into a storage minecart parked beneath it. Also, if all the slots in its inventory contain items, it will send out a redstone signal warning that it is getting full (the signal will stop when there is an empty slot in the inventory).
Contents
Crafting
Name | Ingredients | Input » Output | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Hopper | Wooden Sidings, Gears, Wooden Pressure Plate, Wooden Corner |
|
Filtering
The Hopper also contains an extra inventory slot in which you may place various items that act as a "filter" on which items it will swallow. Filtering hoppers can be placed in a trench so water will wash Items/Drops over every hopper.
Filter | Stops | Passes | Passing Examples | Misc. Effect |
---|---|---|---|---|
Ladder | Blocks | Items | ||
Iron Bars | Unstackable items | Stackable items | ||
Trapdoor | Max. Stack<64 | Max. Stack=64 | Coal, Torch, Redstone | |
Grate | Large Items | Small Items | Feathers | |
Wicker | Not powdery | Powdery | Gunpowder, Flour | Will turn gravel into flint and sand |
Slats | Thick | Thin | String, Paper | |
Soul Sand | Everything | Will turn Ground Netherrack into Hellfire Dust, Soul Dust into Saw Dust and Dragon Orb into XP |
Applications
- Collecting items
- Automated chest loading
- Automated drop sorting
- Automated refilling of any block that has an inventory
- Automated storage-mine cart loading
- Filtering Ground Netherrack into Hellfire Dust
Keep in Mind
- The Redstone signal the hopper emits if no empty slot is available will reach the block beneath it. So a booster rail will be powered if the hopper is becoming full. To stop the minecart from escaping and causing the hopper to spill its content into the air place a block dispenser so it can place a solid block next to the booster rail. With this design you can trigger the minecart when the hopper has been cut from mechanical power.
- You may place multiple hoppers into one trench without incline. But to keep the Items/Blocks separated put another block between each hopper.
- Hoppers can catch fire and thus be destroyed.
- Gravel through the Wicker will separate into Sand and Flint, with flint not passing through the hopper and being left on top.
- Beware when filtering Ground Netherrack! Dropping more than 7 Ground Netherrack into the top of an unpowered Hopper without replacing the Soul Sand will cause the Hopper to break, losing half of the materials, the corner piece, and the pressure plate. It will also spawn you a cuddly new friend. This has been changed as of 2.96 of Better Than Wolves.
- A hopper with a soul sand filter can only hold a maximum of 100 XP.
Full filtering list (will pass)
Item | Ladder | Iron Bars | Trapdoor | Grate | Slats | Wicker |
---|---|---|---|---|---|---|
Block* | ||||||
Unfired Pottery* | ||||||
Flowers | X | X | X | X | ||
Mushrooms | X | X | X | X | ||
Natural Saplings | X | X | ||||
Torch | X | X | ||||
Redstone Torch | X | X | ||||
Tools | X | |||||
Apples | X | X | X | X | ||
Arrows | X | X | X | |||
Coal | X | X | X | X | ||
Diamond | X | X | X | X | ||
Ingots | X | X | ||||
Stick | X | X | X | |||
Bowl | X | X | ||||
Mushroom Stew | X | |||||
String | X | X | X | X | X | |
Feather | X | X | X | X | ||
Gunpowder | X | X | X | X | X | X |
Seeds | X | X | X | X | X | X |
Wheat | X | X | X | |||
Bread | X | X | ||||
Armor | X | |||||
Flint | X | X | X | X | ||
Meat & Fish | X | X | ||||
Painting | X | X | ||||
Buckets | X | |||||
Doors | X | |||||
Sign | X | |||||
Minecart | X | |||||
Saddle | X | |||||
Snowball | X | X | X | X | ||
Boat | X | |||||
Leathers | X | X | X | X | ||
Bricks | X | X | ||||
Clay Ball | X | X | X | X | ||
Sugarcane | X | X | X | |||
Paper | X | X | X | X | X | |
Book | X | X | ||||
Slimeball | X | X | X | X | ||
Eggs | X | X | X | X | ||
Compass | X | X | ||||
Clock | X | X | ||||
Glowstone Dust | X | X | X | X | X | X |
Ink Sac | X | X | X | X | ||
Dyes | X | X | X | X | X | X |
Sugar | X | X | X | X | X | X |
Bone | X | X | X | |||
Cake | X | |||||
Bed | X | |||||
Map | X | X | ||||
Redstone Repeater | X | X | X | |||
Cookies | X | X | X | X | ||
Melon | X | X | ||||
Ender Pearl | X | X | X | X | ||
Blaze Rod | X | X | X | |||
Ghast Tear | X | X | X | X | ||
Gold Nugget | X | X | X | X | ||
Nether Wart | X | X | X | X | X | X |
Bottles | X | X | ||||
Spider Eye | X | X | X | X | ||
Fermented Spider Eye | X | X | X | X | ||
Blaze Powder | X | X | X | X | X | X |
Magma Cream | X | X | ||||
Brewing Stand | X | X | ||||
Cauldron | X | X | ||||
Eye of Ender | X | X | X | X | ||
Glistering Melon | X | X | ||||
Fire Charge | X | X | ||||
Hemp | X | X | X | |||
Gear | X | X | ||||
Flour | X | X | X | X | X | X |
Hemp Fiber | X | X | X | X | X | |
Donut | X | X | X | X | ||
Rope | X | X | X | |||
Slats | X | X | ||||
Water Wheel | X | |||||
Sail | X | |||||
Wind Mill | X | |||||
Fabric | X | X | X | |||
Grate | X | X | ||||
Wicker | X | X | ||||
Strap | X | X | X | X | ||
Belt | X | X | X | |||
Foul Food | X | X | ||||
Wood Blade | X | X | ||||
Glue | X | X | ||||
Tallow | X | X | ||||
Haft | X | X | X | |||
Ground Netherrack | X | X | X | X | X | X |
Hellfire Dust | X | X | X | X | X | X |
Armor Plate | X | X | ||||
Coal Dust | X | X | X | X | X | X |
Padding | X | X | ||||
Filament | X | X | X | X | ||
Redstone Eye | X | X | X | X | ||
Urns | X | X | ||||
Potash | X | X | X | X | X | X |
Soap | X | X | X | X | ||
Saw Dust | X | X | X | X | X | X |
Dynamite | X | X | ||||
Breeding Harness | X | X | ||||
Soul Dust | X | X | X | X | X | X |
Nether Sludge | X | X | ||||
Music Discs | X | |||||
Tuning Fork | X | X | ||||
Arcane Scroll | X | X | X | X | X | |
Candle | X | X | ||||
Rotten Flesh | X | X | ||||
Brimstone | X | X | X | X | X | X |
Iron Nugget | X | X | X | X | ||
Broadhead | X | X | X | X | ||
Mould | X | X |
Demonstration Video
Hopper Presentation from the Man Himself on YouTube
Hopper Filters Presentation from the Man Himself on YouTube
Battosay VS The Gravel recycler on YouTube
Battosay's Advanced Storage System Tutorial on YouTube