Toolhead Explained

A toolhead is a component of a machine or tool that is held and acts directly on the workpiece. Toolheads can allow for a modular assembly or easier change of tools for different tasks or maintenance. Toolheads can be subtractive and/or additive,^[1] that is add or remove material during operation. The position of a toolhead in a machine is important for repeatability, and in numerically controlled machines its position is often calibrated in a process called homing during a machine's startup procedure.

Some examples of toolheads are:

• Printhead (printing),^[2] component of a printer responsible for transferring ink (inkjet printhead), toner (laser printhead) or heat (thermal printhead)^[3] onto the print medium, such as paper, fabric, or plastic
• Robot end effector, also called toolhead, the device at the end of a robotic arm that interacts with the environment
• Screwdriver bits, sockets and drill bits, interchangeable toolheads enabling use of screwdrivers, socket wrenches and other tools with "bit-drivers" on fasteners with different screw heads by using the corresponding bit
• Toolhead (3D printing) or printhead,^[4] component of a 3D printer responsible for transferring material onto the onto the workpiece, for example via filament, powder or resin. One of the main movable parts of a 3D printer which contans the hotend (heating the filament) and, if applicable, also a direct-drive extruder (which performs feeding of the filament).
• Toolhead (handloading), assembly sometimes used on handloading that holds a die, enabling change between different dies without losing their adjustment, thereby increasing output
• Toolhead (machining), part of a milling machine, lathe or other machine tool that holds the cutting tool itself, such as a drill bit or other tools for shaping materials (via a chuck, collet or faceplate)

References

1. https://3dprintingindustry.com/news/e3d-launches-subtractive-toolhead-for-desktop-hybrid-manufacturing-173976/ E3D launches subtractive toolhead for desktop hybrid manufacturing - 3D Printing Industry
2. https://blog.ricoma.com/2024/09/03/what-is-a-printhead/ What is a Printhead? Understanding the Heart of Your Printer - Ricoma Blog
3. https://techweb.rohm.com/product/printhead/printheads/23767/ What is a printhead? | What is a printhead? | TechWeb
4. https://3dprinting.com/news/new-toolhead-enables-aerospace-composite-3d-printing/ New Toolhead Enables Aerospace Composite 3D Printing - 3D Printing