ManuelW/grbl-LPC-CoreXY
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Simen Svale Skogsrud ef61efbf70 makes sure steppers cruise at exactly nominal rate to eliminate rounding errors. Possibly fixes the problem where some moves have a long tail of slow steps. (Untested)
2011-02-11 01:31:44 +01:00
script minor tweak eliminates 'ok' message after errors 2011-02-10 17:01:07 +01:00
.gitignore merged master 2011-01-31 19:42:56 +01:00
config.h refactored compile time settings back into a new file called config.h 2011-02-05 00:55:37 +01:00
COPYING renamed file 2009-01-26 10:51:02 +01:00
eeprom.c formatting 2011-01-31 23:04:39 +01:00
eeprom.h Added runtime configurable global settings with eeprom persitence 2010-03-07 20:29:18 +01:00
gcode.c config command prevents gcode parsing 2011-02-10 13:05:53 +01:00
gcode.h added error messages and dropped echoing of command input 2011-02-05 00:39:34 +01:00
main.c refactored stepper_plan -> planner (untested) 2011-02-11 00:34:53 +01:00
Makefile refactored stepper_plan -> planner (untested) 2011-02-11 00:34:53 +01:00
motion_control.c eliminated the mc_line-method and replaced it with a macro forwarding calls directly to the planner (untested) 2011-02-11 00:53:00 +01:00
motion_control.h formatting 2011-02-11 00:57:29 +01:00
nuts_bolts.h formatting 2011-01-31 23:19:51 +01:00
planner.c makes sure steppers cruise at exactly nominal rate to eliminate rounding errors. Possibly fixes the problem where some moves have a long tail of slow steps. (Untested) 2011-02-11 01:31:44 +01:00
planner.h formatting + moved current position getter to planner 2011-02-11 00:44:18 +01:00
readme.textile updated readme 2011-01-25 14:42:27 +01:00
serial_protocol.c minor tweak eliminates 'ok' message after errors 2011-02-10 17:01:07 +01:00
serial_protocol.h merged master 2011-01-31 19:42:56 +01:00
settings.c replaced use of magical numbers for axis reference with constants 2011-02-06 23:27:04 +01:00
settings.h renamed public methods of settings module to include module name 2011-02-05 01:00:41 +01:00
spindle_control.c refactored compile time settings back into a new file called config.h 2011-02-05 00:55:37 +01:00
spindle_control.h refactored block buffer into separate module motion_plan pending the addition of the actual look ahead planner 2011-01-14 16:45:18 +01:00
stepper.c makes sure steppers cruise at exactly nominal rate to eliminate rounding errors. Possibly fixes the problem where some moves have a long tail of slow steps. (Untested) 2011-02-11 01:31:44 +01:00
stepper.h formatting + moved current position getter to planner 2011-02-11 00:44:18 +01:00
wiring_serial.c added a line to disable baud doubling, but commented out for the time being until I can test it on real hardware 2011-02-11 01:11:33 +01:00
wiring_serial.h moved all strings to pgm-memory 2010-03-07 23:10:41 +01:00

readme.textile 

h1. Grbl - An embedded g-code interpreter and motion-controller for the Arduino/AVR328 microcontroller
    
Grbl is a no-compromise, high performance, low cost alternative to parallel-port-based motion control for CNC milling. It will run on a vanilla Arduino (Duemillanove/Uno) as long as it sports an Atmega 328. 

The controller is written in highly optimized C utilizing every clever feature of the AVR-chips to achieve precise timing and asynchronous operation. It is able to maintain more than 30kHz of stable, jitter free control pulses.

It accepts standards-compliant G-code and has been tested with the output of several CAM tools with no problems. Arcs, circles and helical motion are fully supported - but no support for tool offsets, functions or variables as these are apocryphal and fell into disuse after humans left G-code authoring to machines some time in the 80s.

Grbl includes full acceleration management with look ahead. That means the controller will look up to 20 motions into the future and plan its velocities ahead to deliver smooth acceleration and jerk-free cornering.

h2. Prioritized to-do:

* Backlash compensation
* Autodetect baud rate
* Spindle control
* Arduino IDE compatible (build and flash)
* Support "headless" fabrication by buffering all code to SD-card or similar

_The project was initially inspired by the Arduino GCode Interpreter by Mike Ellery_