GRBL

What is GRBL?

"Grbl is a free, open source, high performance CNC milling controller written in optimized C that will run on a straight Arduino."

Dank GRBL

Simen GRBL

How to Get GRBL Files on Linux

• Open Terminal and type:

git clone https://github.com/damellis/grbl.git grbl

Modify GRBL Files for enabling GRBL flashing to Arduino board on Linux

• Navigate to the GRBL folder

• Open "Makefile" in gedit

• Edit the PROGRAMMER line as:

PROGRAMMER = -c stk500v1 -P /dev/ttyACM0 -b 115200

Flashing GRBL to the Arduino

• Open Terminal and navigate to the GRBL folder (ex. by using the "ls" and "cd" commands)

• In Terminal, type:

make clean

• In Terminal, type:

make

• Connect the Arduino Uno to the computer via USB cable

• In Terminal, type:

make flash

• Disconnect the Arduino Uno

How to Determine GRBL Configuration Changes Required

• Go to the following webpage:

http://dank.bengler.no/-/page/show/5474_configuringgrbl?ref=mst

How to Modify GRBL Settings

• Navigate to the Arduino IDE folder

• Double-click "Arduino" then click "run" in the popup window

• Note: you may want to create a quick launcher for the Arduino IDE

• Connect the Arduino Uno to the computer via USB cable

• In Arduino IDE, open Tools>Serial Monitor

• Note: the Serial Monitor window should pop up and you should see the following:

Grbl 0.6b

'$' to dump current settings

• In the Serial Monitor, change the left drop-down setting to the following:

Both NL & CR

• In the Serial Monitor, type the following in the command line:

$

• Note: you should now see the following:

$0 = 157.480 (steps/mm x)

$1 = 157.480 (steps/mm y)

$2 = 157.480 (steps/mm z)

$3 = 10 (microseconds step pulse)

$4 = 500.0 (mm/min default feed rate)

$5 = 600.0 (mm/min default seek rate)

$6 = 0.100 (mm/arc segment)

$7 = 0 (step port invert mask. binary = 0)

$8 = 25.0 (acceleration in mm/sec^2)

$9 = 225.0 (max instant cornering speed change in delta mm/min)

'$x=value' to set parameter or just '$' to dump current settings

• In the Serial Monitor, type commands as necessary in the following format, where "X" and "Y" are numbers:

$X = Y