> For the complete documentation index, see [llms.txt](https://ms-kb.msd.unimelb.edu.au/next-lab/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ms-kb.msd.unimelb.edu.au/next-lab/3d-printing/open-access-printers/prusa-open-access/hardware-glossary/extruder.md).

# Extruder

The extruder is the part of the printer that push and pulls the filament through the hotend to extrude/retract molten plastic filament. It typically consists of a motor, a set of drive gears that grip the filament and a housing to hold it all together.

![The toolhead and extruder on the Prusa i3 MK3S. Image from Prusa Knowledge Base.](/files/-MS0PFRYZ0tupHUxgQju)

To disassemble the extruder, follow the instructions linked here:

{% embed url="<https://help.prusa3d.com/en/guide/2b-mk3s-extruder-disassembly_181561>" %}