Key Mappings

With Release 1.0.5.0 the following keyboard mappings are now enabled: (updated to 1.0.9.18)

Left, right, up and down arrows operate X and Y axes. Enabled for both main keyboard and keypad. Page up and Page Down for Z axis

/ Increases Feed Rate (moves up the list)
* Decreases Feed Rate (moves down the list)
+ Increases Distance (moves up the list)
- Decreases Distance (moves down the list)
For Feed Rate and Distance the increase or decrease does not wrap around to prevent sudden lurches in movement.

A or Insert resets all axis to 0
X, Y and Z reset their respective axis to 0

These mappings match those of UGS

Space toggles Grbl Control Start/Resume
Ctrl+R Starts sending the file (have to load a file first of course)

F and f increase/decrease FeedRate override (if using Grbl 1.0 or later)
Ctrl+f resets Feed Rate override
S and s increase/decrease Spindle Speed override (if using Grbl 1.0 or later)
Ctrl+s resets Spindle Speed override
R and r toggle Rapid override between 25% and 50% (if using Grbl 1.0 or later)
Ctrl+r resets Rapid override

Ctrl H performs Hold
Ctrl X performs Reset
Ctrl U performs Unlock

F2-F6 map to your defined Macros

H to execute Home command
Ctrl+1 to execute Spcl Posn 1
Ctrl+2 to execute Spcl Posn 2

Ctrl C to Connect (if not connected, else it Disconnects)