Hotend Flow Test Gcode Generator

Use at your own risk and discretion.

Verify all generated Gcode from this tool before attempting to print it. You are responsible for any damage caused to your printer as a result of using Gcode generated by this tool.

Printer Dimensions

Bed Width

Width of print bed (i.e. X-axis length)

Bed Length

Length of print bed (i.e. Y-axis length)

Bed Margin

Safe distance from edge of bed to print on

Generation Direction

For toolheads with large forward clearance

Printer Settings

Filament Diameter

Diameter of filament used

Travel Speed

Speed for non-printing moves

mm/s

Bed Temperature

Temperature of print bed

°C

Fan Speed

Speed of part cooling fan

Retraction Settings

Retraction Distance

Length of filament to recede during retraction

Retraction Speed

Speed that extruder drives back filament

mm/s

Pattern Configuration

Flow Spacing

Space between flow tests (i.e. Y-spacing)

Temperature Spacing

Space between temperature tests (i.e. X-spacing)

Dwell Time

Pause before each prime line

Flow Test (Rows)

Start Flow

Requested flow rate for first flow test in sequence

mm³/s

Offset Flow

Change in requested flow rate between flow steps

mm³/s

Flow Steps

Inclusive; Number of flow steps to test

End Flow

Requested flow rate for last flow test in sequence

mm³/s

End flow is a calculated value.

Temperature Test (Columns)

Start Temperature

Hotend temperature for first temperature column

°C

Offset Temperature

Change in temperature between temperature columns

°C

Temperature Steps

Inclusive; Set to 1 to fill plate with flow steps instead

End Temperature

Hotend temperature for last temperature column

°C

End temperature is a calculated value.

Start and End Gcode

Advanced

Safe Z Park Height

Absolute position; Safe height to park toolhead

Show Variable Names

For use in custom start and end Gcode

Start Gcode

Variables within ${variable} will be evaluated. +, -, *, /, and Math.abs(variable) are also supported.

End Gcode

Variables within ${variable} will be evaluated. +, -, *, /, and Math.abs(variable) are also supported.

Test Configuration

Advanced

Prime Line Length

Length of prime line before blob

Prime Amount

Length of filament to extrude for prime line

Prime Speed

Speed of the prime move

mm/s

Wipe Length

Distance between prime line end and blob center

Blob Height

Height of printed blob

Extrusion Amount

Length of filament to extrude into blob

Generator Settings

Experimental

;####### Start Gcode M104 S200 ; Set Nozzle Temperature M140 S60 ; Set Bed Temperature G90 ; Absolute positioning G28 ; Move to home position G0 Z10 ; Lift nozzle G21 ; unit in mm G92 E0 ; reset extruder M83 ; set extruder to relative mode M190 S60 ; Wait for Bed Temperature M106 S0 ; Set Fan Speed ; M203 I0.1 ; Uncomment for Duet/RRF (slow z-moves) ; PRINT_START ; PRINT_START EXTRUDER=200 BED=60 ; [SAFETY] Force Relative Extrusion M83 ; set extruder to relative mode ;####### 200°C G4 S0; Dwell M109 S200 ;####### 200°C // 8mm3/s M117 200C // 8mm3/s G0 X5 Y5 Z15.5 F6000 G4 S20 ; Dwell G0 Z0.3 ; Drop down G1 X30 E20 F300 ; Prime G1 E-0.8 F2100 ; Retract G0 X45 F6000 ; Wipe G0 Z0.5 ; Lift G1 E0.8 F2100 ; Undo Retract G1 Z10.5 E200 F9.98 ; Extrude G1 E-0.8 F2100 ; Retract G0 Z15.5; Lift G0 X5 Y5 F6000 G92 E0 ; Reset Extruder ;####### 200°C // 10mm3/s M117 200C // 10mm3/s G0 X5 Y55 Z15.5 F6000 G4 S20 ; Dwell G0 Z0.3 ; Drop down G1 X30 E20 F300 ; Prime G1 E-0.8 F2100 ; Retract G0 X45 F6000 ; Wipe G0 Z0.5 ; Lift G1 E0.8 F2100 ; Undo Retract G1 Z10.5 E200 F12.47 ; Extrude G1 E-0.8 F2100 ; Retract G0 Z15.5; Lift G0 X5 Y55 F6000 G92 E0 ; Reset Extruder ;####### 200°C // 12mm3/s M117 200C // 12mm3/s G0 X5 Y105 Z15.5 F6000 G4 S20 ; Dwell G0 Z0.3 ; Drop down G1 X30 E20 F300 ; Prime G1 E-0.8 F2100 ; Retract G0 X45 F6000 ; Wipe G0 Z0.5 ; Lift G1 E0.8 F2100 ; Undo Retract G1 Z10.5 E200 F14.97 ; Extrude G1 E-0.8 F2100 ; Retract G0 Z15.5; Lift G0 X5 Y105 F6000 G92 E0 ; Reset Extruder ;####### 200°C // 14mm3/s M117 200C // 14mm3/s G0 X5 Y155 Z15.5 F6000 G4 S20 ; Dwell G0 Z0.3 ; Drop down G1 X30 E20 F300 ; Prime G1 E-0.8 F2100 ; Retract G0 X45 F6000 ; Wipe G0 Z0.5 ; Lift G1 E0.8 F2100 ; Undo Retract G1 Z10.5 E200 F17.46 ; Extrude G1 E-0.8 F2100 ; Retract G0 Z15.5; Lift G0 X5 Y155 F6000 G92 E0 ; Reset Extruder ;####### 220°C G4 S0; Dwell M109 S220 ;####### 220°C // 8mm3/s M117 220C // 8mm3/s G0 X83 Y5 Z15.5 F6000 G4 S20 ; Dwell G0 Z0.3 ; Drop down G1 X108 E20 F300 ; Prime G1 E-0.8 F2100 ; Retract G0 X123 F6000 ; Wipe G0 Z0.5 ; Lift G1 E0.8 F2100 ; Undo Retract G1 Z10.5 E200 F9.98 ; Extrude G1 E-0.8 F2100 ; Retract G0 Z15.5; Lift G0 X83 Y5 F6000 G92 E0 ; Reset Extruder ;####### 220°C // 10mm3/s M117 220C // 10mm3/s G0 X83 Y55 Z15.5 F6000 G4 S20 ; Dwell G0 Z0.3 ; Drop down G1 X108 E20 F300 ; Prime G1 E-0.8 F2100 ; Retract G0 X123 F6000 ; Wipe G0 Z0.5 ; Lift G1 E0.8 F2100 ; Undo Retract G1 Z10.5 E200 F12.47 ; Extrude G1 E-0.8 F2100 ; Retract G0 Z15.5; Lift G0 X83 Y55 F6000 G92 E0 ; Reset Extruder ;####### 220°C // 12mm3/s M117 220C // 12mm3/s G0 X83 Y105 Z15.5 F6000 G4 S20 ; Dwell G0 Z0.3 ; Drop down G1 X108 E20 F300 ; Prime G1 E-0.8 F2100 ; Retract G0 X123 F6000 ; Wipe G0 Z0.5 ; Lift G1 E0.8 F2100 ; Undo Retract G1 Z10.5 E200 F14.97 ; Extrude G1 E-0.8 F2100 ; Retract G0 Z15.5; Lift G0 X83 Y105 F6000 G92 E0 ; Reset Extruder ;####### 220°C // 14mm3/s M117 220C // 14mm3/s G0 X83 Y155 Z15.5 F6000 G4 S20 ; Dwell G0 Z0.3 ; Drop down G1 X108 E20 F300 ; Prime G1 E-0.8 F2100 ; Retract G0 X123 F6000 ; Wipe G0 Z0.5 ; Lift G1 E0.8 F2100 ; Undo Retract G1 Z10.5 E200 F17.46 ; Extrude G1 E-0.8 F2100 ; Retract G0 Z15.5; Lift G0 X83 Y155 F6000 G92 E0 ; Reset Extruder ;####### 240°C G4 S0; Dwell M109 S240 ;####### 240°C // 8mm3/s M117 240C // 8mm3/s G0 X161 Y5 Z15.5 F6000 G4 S20 ; Dwell G0 Z0.3 ; Drop down G1 X186 E20 F300 ; Prime G1 E-0.8 F2100 ; Retract G0 X201 F6000 ; Wipe G0 Z0.5 ; Lift G1 E0.8 F2100 ; Undo Retract G1 Z10.5 E200 F9.98 ; Extrude G1 E-0.8 F2100 ; Retract G0 Z15.5; Lift G0 X161 Y5 F6000 G92 E0 ; Reset Extruder ;####### 240°C // 10mm3/s M117 240C // 10mm3/s G0 X161 Y55 Z15.5 F6000 G4 S20 ; Dwell G0 Z0.3 ; Drop down G1 X186 E20 F300 ; Prime G1 E-0.8 F2100 ; Retract G0 X201 F6000 ; Wipe G0 Z0.5 ; Lift G1 E0.8 F2100 ; Undo Retract G1 Z10.5 E200 F12.47 ; Extrude G1 E-0.8 F2100 ; Retract G0 Z15.5; Lift G0 X161 Y55 F6000 G92 E0 ; Reset Extruder ;####### 240°C // 12mm3/s M117 240C // 12mm3/s G0 X161 Y105 Z15.5 F6000 G4 S20 ; Dwell G0 Z0.3 ; Drop down G1 X186 E20 F300 ; Prime G1 E-0.8 F2100 ; Retract G0 X201 F6000 ; Wipe G0 Z0.5 ; Lift G1 E0.8 F2100 ; Undo Retract G1 Z10.5 E200 F14.97 ; Extrude G1 E-0.8 F2100 ; Retract G0 Z15.5; Lift G0 X161 Y105 F6000 G92 E0 ; Reset Extruder ;####### 240°C // 14mm3/s M117 240C // 14mm3/s G0 X161 Y155 Z15.5 F6000 G4 S20 ; Dwell G0 Z0.3 ; Drop down G1 X186 E20 F300 ; Prime G1 E-0.8 F2100 ; Retract G0 X201 F6000 ; Wipe G0 Z0.5 ; Lift G1 E0.8 F2100 ; Undo Retract G1 Z10.5 E200 F17.46 ; Extrude G1 E-0.8 F2100 ; Retract G0 Z15.5; Lift G0 X161 Y155 F6000 G92 E0 ; Reset Extruder ;####### End Gcode G4 ; Wait for buffer to clear G0 X245 Y205 ; Move to Corner M104 S0 T0 ; Turn Off Hotend M140 S0 ; Turn Off Bed M84 ; Disable Steppers ; PRINT_END