Sieve

Rune Info

School

Transmutation

Size

3 × 3

Drawn on

Ground

Activation

Right-click the Hopper itself

Uses

Once; part of the pattern stays

Spent on use

The Redstone Dust and the Piston; keeps the Hopper

Materials

• 4× Redstone Dust
• 4× Piston
• 1× Hopper

Minecraft

1.13+

Permission

runic.runes.sieve

Binds a hopper as an item filter — only stacks matching its samples pass; the rest stay put. The last sample of each type stays locked so the filter cannot empty itself. Works with Vortex and freight.

Pattern

Hover a tile to name it. Reading pattern diagrams explains the symbols.

3 × 3, one layer. Drawn flat on the ground, facing any compass direction.

NWES

ABABCBABA

• Activation block

  The glowing cell is the one to click.
• Spent

  Cells with a corner mark are used up when the rune wakes.

Keys

• A
  Redstone Dust × 4

  spent when the rune wakes
• B
  Piston × 4

  spent when the rune wakes
• C
  Hopper × 1

  stays after use

How it works

The Sieve binds a hopper as an item filter. Wake it, and the pattern burns away while the hopper remains. Then place a sample of each item you want to let through inside the hopper.

From then on, only stacks that match a sample enter the hopper from the hoppers and containers feeding it. Everything else stays where it was. An empty Sieve lets everything through.

Good to know

• The last item of each sample always stays in the hopper, so the filter can never empty itself.
• It works with a Vortex and with freight.
• A hopper held by a Heavy Core Anchor refuses it.
• Breaking the hopper ends the binding. The Sieve unravels with the hopper.

Tips

Put a Sieve under a mob farm's collection chest to sort the drops you want from the rest.

Configuration

These are the defaults in plugins/Runic/runes/sieve.yml. Every rune file also carries the shared settings described in Rune files.

Sieve has no settings of its own beyond the shared ones.

Messages

8 messages this rune can show

Key	Default text
bound	The Sieve awakens — place sample items in the hopper; only matches pass the line. Leave at least one of each sample — hoppers cannot pull the last.
already-bound	This Sieve already sorts the line — stock samples in the hopper.
conflict-heavy-core	A Heavy Core Anchor already claims this hopper — the Sieve will not bind.
limit	The server's Sieve safety limit has been reached.
consume-failed	The Sieve pattern could not be consumed safely.
transaction-failed	The Sieve binding failed; its pattern was restored.
registration-uncertain	The Sieve's state could not be verified; an administrator should inspect it.
broken	The Sieve unravels with the hopper.