grbl-LPC-CoreXY

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Simen Svale Skogsrud c09b05fcbd updated readme with info for users of 168's		2011-02-17 19:27:53 +01:00
doc	added som documentation for other contributors	2011-02-11 23:54:13 +01:00
script	gcode streaming works	2011-02-17 10:14:27 +01:00
.gitignore	merged master	2011-01-31 19:42:56 +01:00
config.h	increased default acceleration ticks per second	2011-02-17 09:42:44 +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	syntax tweak	2011-02-11 23:53:33 +01:00
gcode.h	added error messages and dropped echoing of command input	2011-02-05 00:39:34 +01:00
main.c	added informative error message for people building 0.6 for atmega168 (impossible)	2011-02-17 19:22:10 +01:00
Makefile	refactored stepper_plan -> planner (untested)	2011-02-11 00:34:53 +01:00
motion_control.c	cleanup, protected some more module variables as static	2011-02-12 00:03:58 +01:00
motion_control.h	cleanup, protected some more module variables as static	2011-02-12 00:03:58 +01:00
nuts_bolts.h	slimmed down nuts_bolts	2011-02-11 23:53:58 +01:00
planner.c	a new (slightly inelegant) stab at eliminating the slow tail problem	2011-02-16 22:58:53 +01:00
planner.h	a new (slightly inelegant) stab at eliminating the slow tail problem	2011-02-16 22:58:53 +01:00
readme.textile	updated readme with info for users of 168's	2011-02-17 19:27:53 +01:00
serial_protocol.c	gcode streaming works	2011-02-17 10:14:27 +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	a new (slightly inelegant) stab at eliminating the slow tail problem	2011-02-16 22:58:53 +01:00
stepper.h	formatting + moved current position getter to planner	2011-02-11 00:44:18 +01:00
wiring_serial.c	added one line to disable baud doubling on Uno	2011-02-11 08:25:49 +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.

*Important note for Atmega 168 users:* Grbl used to be compatible with both the older Ardunios running atmega 168 and the newer with 328p. This had to go, as I was unable to fit the acceleration management into the 16k code space of the 168. If you want to run Grbl on an 168 I am still maintaining Grbl 0.51 "in the branch called 'v0_51'":https://github.com/simen/grbl/tree/v0_51.

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