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Type BuildCraft Machines
Tool Grid Iron Pickaxe
Stackable Yes (64)
Item ID 155
Added by BuildCraft

The Filler is a machine used to fill whole areas with blocks. It needs to be placed in front of a Landmark to fill the area the Landmark is outlining.


A Filler can be powered by either a Stirling Engine , Combustion Engine, a Redstone Energy Cell, or a BC Producer. Unaided, Redstone Engines do not produce enough power to run the Filler (even if linked).



Right-clicking on a Filler brings up the Filler interface. The top 3x3 area is for a Filler pattern, and the resources area is where you place the materials to build with. There are 6 patterns that can be used. Patterns are made by placing Bricks and/or Glass in the top 3x3 area. When there is a valid pattern in the Filler, the pattern icon will be visible in the small space in the top of the interface, and on the sides of the Filler. The lights on top of the Filler will also have turned green.

A Filler will fill in water blocks, but will not fill in lava or Oil blocks at all. Sand or Gravel can be used in the Filler to fill in lava or Oil, due to gravity affecting them.

When the Filler has finished its task, the lights will turn red again to indicate that it is finished. To start it working again on the same area, just remove and replace one of the bricks or glass from the pattern. A pick is needed to retrieve a Filler once placed.


  • version - 3.3.x: Clearing is done bottom layer to top layer. Items dropped can be collected
  • version - 3.4.x+: Clearing is done from top to bottom layer, items can be picked up in the first 1/2 second and vanish after a further half second. This change was made to stop the filler being used as a cheap quarry alternative. This can be disabled in the Buildcraft config file by setting the variable 'B:filler.destroy' to false.
  • The filler seems buggy when used in multiplayer games when the location outlined starts with a negative X or Y coordinate ending in positive coordinates.

Filler PatternsEdit

Into the top 3x3 area of the user interface, use the patterns below to select the Filler's functionality.


The Filler user interface.

Pattern Description
Fill pattern: Fills the area with blocks.
Clear pattern: Removes all blocks in the area.
Stair pattern: Creates a staircase with 1 block high steps.
Box pattern: Walls, ceiling and floor.

Flatten pattern: Clears the area, and fills in holes in the the layer underneath the area.
Pyramid pattern: Creates a pyramid inside the area.


Like the Builder , upon completion the Filler may leave behind the yellow construction frame. This is a common glitch. To get rid of the frame you have to disconnect and reconnect.

Video TutorialEdit

Filler - Buildcraft In Minutes 01:22

Filler - Buildcraft In Minutes

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