A device to measure position. Usually a mechanical-optical device, which outputs a quadrature signal. The signal can be counted by special hardware, or directly by the parport with emc2.

One of the computer control movable parts of the machine. For a typical vertical mill, the table is the X axis, the saddle is the Y axis, and the quill or knee is the Z axis. Additional linear axes pa [..]

One of the Graphical User Interfaces available to users of EMC2. Features the modern use of menus and mouse buttons while automating and hiding some of the more traditional EMC2 controls. It is the on [..]

The amount of "play" or lost motion that occurs when direction is reversed in a lead screw. or other mechanical motion driving system. It can result from nuts that are loose on leadscrews, s [..]

A type of lead-screw that uses small hardened steel balls between the nut and screw to reduce friction. Ball-screws have very low friction and backlash, but are usually quite expensive.

Computer Numerical Control. The general term used to refer to computer control of machinery. Instead of a human operator turning cranks to move a cutting tool, CNC uses a computer and motors to move t [..]

A tool used to build, compile and install EMC2 HAL components.

A directory containing a set of configuration files. Custom configurations are normally saved in the users home/emc2/configs directory. These files include EMC's traditional INI file and HAL file [..]

The task of setting up EMC2 so that it matches the hardware on a machine tool.

A Coordinate Measuring Machine is used to make many accurate measurements on parts. These machines can be used to create CAD data for parts where no drawings can be found, when a hand-made prototype n [..]