Quick start guide

First motor moves

Assume axis has proper configuration sent earlier, making moves is as easy as entering command

In terminal bottom field type G0 X10 and press Enter

If linear actuator is connected it should move at default max speed by 10mm (rotary actuator should turn 10deg).

In order to move at different speeds G1 command should be used. For example G1 Y10 F100

List of supported G-code commands:

G0, G1: Linear Motions
G2, G3: Arc and Helical Motions
G4: Dwell
G10 L2, G10 L20: Set Work Coordinate Offsets
G17, G18, G19: Plane Selection
G20, G21: Units
G28, G30: Go to Pre-Defined Position
G28.1, G30.1: Set Pre-Defined Position
G38.2: Probing
G38.3, G38.4, G38.5: Probing
G40: Cutter Radius Compensation Modes OFF (Only)
G43.1, G49: Dynamic Tool Length Offsets
G53: Move in Absolute Coordinates
G54, G55, G56, G57, G58, G59: Work Coordinate Systems
G61: Path Control Modes
G80: Motion Mode Cancel
G90, G91: Distance Modes
G91.1: Arc IJK Distance Modes
G92: Coordinate Offset
G92.1: Clear Coordinate System Offsets
G93, G94: Feedrate Modes
G100, G101: TMC2300 register read/write
M0, M2, M30: Program Pause and End
M3, M4, M5: Spindle Control
M7* , M8, M9: Coolant Control
M56* : Parking Motion Override Control

Controller is shipped with X axis configured for RSB1 and X axis configured for LSA1 (0.635mm version)

Configuration

In order for controller to function correctly pulse count per revolution, acceleration and optionally motion limits has to be specified. In order to read configuration type $$ and press Enter.

Recommended values for LSA1 actuator and RSB1 actuator

Read configuration parameters

All internal configuration parameters will be printed out. For example:

$0=6
$1=255
$2=0
$3=31
$4=1
$5=0
$6=0
$10=19
$11=0.010
$12=0.002
$13=0
$20=0
$21=0
$22=1
$23=15
$24=50.000
$25=200.000
$26=250
$27=5.000
$30=1000
$31=0
$32=0
$100=111.110
$101=1007.874
$102=17.778
$103=1536.000
$110=20000.000
$111=2500.000
$112=500000.000
$113=20000.000
$120=2000.000
$121=300.000
$122=40000.000
$123=1000.000
$130=360.000
$131=90.000
$132=360.000
$133=360.000

Detailed explanation can be found on GRBL documentation

Write configuration parameters

Writing specific value is as easy as typing $100=1000 and pressing Enter If number is valid, this command will overwrite existing value and save to EEPROM.

Control software

There are number of software packages suited to control CNC machines. Comprehensive list is maintained by GRBL developers on GitHub. Our favorite is Candle by Denvi