GCode Variable Substitution

current set of variable substitutions

All Modes

• {top} = offset in mm of bed top Y axis
• {left} = offset in mm of bed left X axis
• {right} = offset in mm of bed right X axis
• {bottom} = offset in mm of bed bottom Y axis

3D printing / FDM

in "pre" and "post"

• {temp} = hot end temperature
• {bed_temp} = bed temperature
• {fan_speed} = active cooling fan speed (usually 0-255)
• {z_max} = max build height in mm

in "settings"

• {bed_width} = bed width in mm
• {bed_depth} = bed depth in mm
• {nozzle_size} = nozzle diameter in mm
• {filament_diameter} = filament diameter in mm

CAM

• {tool} = CAM tool #
• {tool_name} = CAM tool name
• {time} = dwell time in seconds
• {time_ms} = dwell time in milliseconds
• {time_sec} = dwell time in seconds

simple algebraic expressions supported in the form

• {token+n} {token-n} {token/n} {token*n}