lca2011 – Fri Session 1 – LinuxCNC

All Chips , No Salsa – Bdale Garbee

  • Got tabletop 3-axis mill 2nd hand, sloppy but got useful work
  • Bought new mill in 2006 305x765x560mm working volume + CNC conversion kit
  • EMC2 – open source machine control system
  • EMC2 – HAL between layers – very modular – real time – Linux user interface – “axis” user interface – “trivkins” control module
  • Open vs  closed loop. Closed loop tools feedback to controller to tell it result of commands issued
  • stepping vs servo motors
  • Pluto-P board – parallel port connected – source and open drivers – not open hardware but “obvious” FPGA so transparent
  • Amps boast 3.3 volt to 60-80 volts at several amps
  • Use windshield wiper motors to test before rigging up to big stuff
  • wires enclosed in clear vinyl tubing
  • http://gag.com/homeshop
  • HeeksCAD / HeeksCNC
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