Projects / rt-stepper


The rt-stepper project provides a USB CNC controller solution. Most CNC controllers are designed to be driven with a PC parallel port. The rt-stepper solution replaces the parallel port with USB. Users can convert their existing parallel port CNC controller into a USB CNC controller. Designers can integrate the hardware into there own CNC controller. The PC side software is based on the popular EMC2 software at EMC2 provides 4-axis support, a complete gcode interpreter, a trajectory planner, a GUI front-end, backplotting, and more. The best part of the solution is since the rt-stepper hardware provides the real time step pulses, you can now run EMC2 on Linux, Mac OS, and Windows.

Operating Systems

RSS Recent releases

  •  25 Sep 2011 18:02

    Release Notes: Initial release based on EMC2. Provides 4-axis support, a complete gcode interpreter, a trajectory planner, GUI front-end, backplotting, and more.

    •  22 Apr 2010 05:07

      Release Notes: Circular horizontal milling support was added with the G17, G18, and G19 gcode commands. The software was reconfigured into two components: application program and library. The applicaton program is the gcode interpreter, which calls the library for all CNC move commands. The library handles all the dongle specific USB IO for basic linear and circular moves. Now third-party developers can integrate the rt-stepper dongle into their own CNC application.

      •  03 Jan 2010 13:31

        Release Notes: A new control thread was added for INPUT0 processing. The new thread provides support for limit switches. Support was added for Windows 7 by using Microsoft's winusb.dll.

        •  29 Jul 2009 12:52

          Release Notes: Windows XP support was added. Windows packages can now be built using the MinGW cross compiler. Syslog support was moved to a local log file. Improvements were made to the event message queue.

          •  20 Jun 2009 03:07

          Release Notes: Initial release.


          Project Spotlight


          A simple application for sorting data in your browser.


          Project Spotlight


          An online interactive tutorial and free text assesments.