DIY CNC Fusion 360 CAM posts processor
This is modified fork of https://github.com/martindb/mpcnc_posts_processor
CAM posts processor for use with Fusion 360 and MPCNC with RAMPS or any 3-axis DIY CNC. Supported firmwares:
- Marlin 2.0
- Repetier firmware 1.0.3 (not tested. gcode is same as for Marlin)
- GRBL 1.1
- RepRap firmware (Duet3d)
Some design points:
- Setup operation types: Milling, Water/Laser/Plasma
- Support MM and Inches units (but all properties MUST be set in MM)
- XY and Z independent travel speeds. Rapids are done with G0.
- Arcs support on XY plane (Marlin/Repetier/RepRap) or all panes (Grbl)
- Tested with LCD display and SD card (built in tool change require printing from SD and LCD to restart)
- Support for 3 different laser power using "cutting modes" (through, etch, vaporize)
- Support 2 coolant channels. You may attach relays to control external devices - as example air jet valve.
- Customizable level of verbosity of comments
- Support line numbers
- Support GRBL laser mode (be noted that you probably to have enabled laser mode $32=1)
User Properties
Group 1: Job propertyes
| Title | Description | Default |
|---|---|---|
| Job: Firmware | Target firmware (marlin 2.0 or Repetir 1.0.3 / GRBL 1.1) / RepRap Firmware. | Marlin |
| Job: Travel Speed XY | High speed for travel movements X & Y (mm/min). | 2500 mm/min |
| Job: Travel Speed Z | High speed for travel movements Z (mm/min). | 300 mm/min |
| Job: Marlin: Manual Spindle On/Off | Set it to true when the motor of your spindle is controlled by manual switch. So the preprocessor will issue additional pauses for TURN ON/TURN OFF the motor. | true |
| Job: Marlin: Enforce feedrate | Add feedrate to each movement g-code. | false |
| Job: Use Arcs | Use G2/G3 g-codes fo circular movements. | true |
| Job: Reset on start (G92) | Set origin when gcode start (G92 X0 Y0 Z0). Only apply if not using gcodeStartFile. | true |
| Job: Goto 0 at end | Go X0 Y0 at gcode end. Useful to find if your machine loss steeps or have any other mechanic issue (like loose pulleys). Also useful for repetitive jobs. Only apply if not using gcodeStopFile. | true |
| Job: Use Arcs | Use G2/G3 g-codes fo circular movements. | true |
| Job: Line numbers | Show sequence numbers. | false |
| Job: Line start | First sequence number. | 10 |
| Job: Line increment | Increment for sequence numbers. | 1 |
| Job: Separate words | Specifies that the words should be separated with a white space. | true |
| Job: Duet: Milling Mode | GCode command to setup Duet3d milling mode. | "M453 P2 I0 R30000 F200" |
| Job: Duet: Laser Mode | GCode command to setup Duet3d laser mode. | "M452 P2 I0 R255 F200" |
Group 2: Tool change
| Title | Description | Default |
|---|---|---|
| Change: Enabled | Enable tool change code (bultin tool change requires LCD display) | true |
| Change: X | X position for builtin tool change | 0 |
| Change: Y | Y position for builtin tool change | 0 |
| Change: Z | Z position for builtin tool change | 40 |
| Change: Make Z Probe | Z probe after tool change | true |
| Change: Disable Z stepper | Disable Z stepper when change a tool | false |
Group 3: Z Probe
| Title | Description | Default |
|---|---|---|
| Probe: On job start | Execute probe gcode on job start | true |
| Probe: Plate thickness | Plate thickness | 0.8 |
| Probe: Use Home Z | Use G28 or G38 for probing | true |
| Probe: G38 target | Probing up to Z position | -10 |
| Probe: G38 speed | Probing with speed | 30 |
Group 4: Laser/Plasma related
| Title | Description | Default | Values |
|---|---|---|---|
| Laser: On - Vaporize | Persent of power to turn on the laser/plasma cutter in vaporize mode | 100 | |
| Laser: On - Through | Persent of power to turn on the laser/plasma cutter in through mode | 80 | |
| Laser: On - Etch | Persent of power to turn on the laser/plasma cutter in etch mode | 40 | |
| Laser: Marlin mode | Marlin mode of the laser/plasma cutter () | M106 | M106 S{PWM}/M107 = 0; M3 O{PWM}/M5 = 1; M42 P{pin} S{PWM} = 2; |
| Laser: Marlin pin | Marlin custom pin number for the laser/plasma cutter | 4 | |
| Laser: GRBL mode | GRBL mode of the laser/plasma cutter | M4 | M4 S{PWM}/M5 dynamic power = 4; M3 S{PWM}/M5 static power = 3; |
Group 5: Override behaviour by external files
| Title | Description | Default |
|---|---|---|
| Extern: Start File | File with custom Gcode for header/start (in nc folder) | |
| Extern: Stop File | File with custom Gcode for footer/end (in nc folder) | |
| Extern: Tool File | File with custom Gcode for tool change (in nc folder) | |
| Extern: Probe File | File with custom Gcode for tool probe (in nc folder) |
Group 6: Manage coolant control pins
| Title | Description | Default | Values |
|---|---|---|---|
| Coolant: A Mode | Enable issuing g-codes for control Coolant channel A | 0 | off=0; flood=1; mist=2; throughTool=3; air=4; airThroughTool=5; suction=6; floodMist=7; floodThroughTool=8 |
| Coolant: A Marlin On command | GCode command to turn on Coolant channel A | M42 P11 S255 | |
| Coolant: A Marlin Off command | Gcode command to turn off Coolant A | M42 P11 S0 | |
| Coolant: A GRBL | GRBL g-codes for control Coolant channel A | M7 | M7 flood = 7; M8 mist = 8 |
| Coolant: B Mode | Enable issuing g-codes for control Coolant channel B | 0 | off=0; flood=1; mist=2; throughTool=3; air=4; airThroughTool=5; suction=6; floodMist=7; floodThroughTool=8 |
| Coolant: B Marlin On command | GCode command to turn on Coolant channel B | M42 P6 S255 | |
| Coolant: B Marlin Off command | Gcode command to turn off Coolant channel B | M42 P6 S0 | |
| Coolant: B GRBL | GRBL g-codes for control Coolant channel B | M8 | M7 flood = 7; M8 mist = 8 |
Group 7: Write comments into g-code
| Title | Description | Default |
|---|---|---|
| Comment: Write Tools | Write table of used tools in job header | true |
| Comment: Sections | Write header of every section | true |
| Comment: Activities | Write comments which somehow helps to understand current piece of g-code | true |
| Comment: Trace Commands | Write stringified commands called by CAM | true |
| Comment: Trace Movements | Write stringified movements called by CAM | true |
Sample of issued code blocks
Gcode of milling with manually control spindel
;Fusion 360 CAM 2.0.4860
; Posts processor: MPCNC_Mill_Laser.cps
; Gcode generated: Sunday, December 2, 2018 1:57:21 PM GMT
; Document: cam_testpp v5
; Setup: Setup1
;
; Ranges table:
; X: Min=2.588 Max=36 Size=33.412
; Y: Min=2.588 Max=36 Size=33.412
; Z: Min=-1 Max=15 Size=16
;
; Tools table:
; T1 D=3.175 CR=0 - ZMIN=-1 - flat end mill
; T2 D=1.5 CR=0 - ZMIN=-1 - flat end mill
; *** START begin ***
G90
G21
M84 S0
G92 X0 Y0 Z0
; COMMAND_TOOL_MEASURE
; --- PROBE TOOL begin ---
M0 Attach ZProbe
G28 Z
G92 Z0.8
G0 Z50 F300
M0 Detach ZProbe
; --- PROBE TOOL end ---
; *** START end ***
; *** SECTION begin ***
;2D Contour1 - Milling - Tool: 1 - 1/8inch flat end mill
; X Min: 2.588 - X Max: 49.412
; Y Min: 2.588 - Y Max: 49.412
; Z Min: -1 - Z Max: 15
M400
; COMMAND_START_SPINDLE
; COMMAND_SPINDLE_CLOCKWISE
M0 Turn ON spindle
; COMMAND_COOLANT_ON
M117 2D Contour1
G0 Z15
G0 X49.412 Y26 F2500
G0 Z5 F300
; MOVEMENT_PLUNGE
G1 Z1 F100
G1 Z-1
; 14
G1 Y49.412 F300
G1 X2.588
G1 Y2.588
G1 X49.412
G1 Y26
; MOVEMENT_RAPID
G0 Z15
; *** SECTION end ***
; *** SECTION begin ***
;2D Contour2 - Milling - Tool: 1 - 1/8inch flat end mill
; X Min: 9.587 - X Max: 42.412
; Y Min: 9.587 - Y Max: 42.412
; Z Min: -1 - Z Max: 15
M400
; COMMAND_START_SPINDLE
; COMMAND_SPINDLE_CLOCKWISE
; COMMAND_COOLANT_ON
M117 2D Contour2
G0 Z15 F300
G0 X42.412 Y26 F2500
G0 Z5 F300
; MOVEMENT_PLUNGE
G1 Z1 F100
G1 Z-1
; 14
G1 Y42.412 F300
G1 X9.587
G1 Y9.587
G1 X42.412
G1 Y26
; MOVEMENT_RAPID
G0 Z15
; *** SECTION end ***
; *** SECTION begin ***
; --- CHANGE TOOL begin ---
; COMMAND_COOLANT_OFF
M400
M300 S400 P2000
G0 Z50 F300
G0 X0 Y0 F2500
; COMMAND_STOP_SPINDLE
M0 Turn OFF spindle
M0 Put tool 2 - 1.5mm
; COMMAND_TOOL_MEASURE
; --- PROBE TOOL begin ---
M0 Attach ZProbe
G28 Z
G92 Z0.8
G0 Z50 F300
M0 Detach ZProbe
; --- PROBE TOOL end ---
; --- CHANGE TOOL end ---
;Trace1 - Milling - Tool: 2 - 1.5mm flat end mill
; X Min: 16 - X Max: 36
; Y Min: 16 - Y Max: 36
; Z Min: -1 - Z Max: 15
M400
; COMMAND_START_SPINDLE
; COMMAND_SPINDLE_CLOCKWISE
M0 Turn ON spindle
; COMMAND_COOLANT_ON
M117 Trace1
G0 Z15
G0 X36 Y36 F2500
G0 Z4 F300
; MOVEMENT_LEAD_IN
G1 Z-1 F300
; MOVEMENT_CUTTING
G1 Y16
G1 X16
G1 Y36
G1 X36
; MOVEMENT_LEAD_OUT
G1 Z4
; MOVEMENT_RAPID
G0 Z15
; *** SECTION end ***
; *** STOP begin ***
M400
; COMMAND_COOLANT_OFF
; COMMAND_STOP_SPINDLE
M0 Turn OFF spindle
G0 X0 Y0 F2500
M117 Job end
; *** STOP end ***Gcode of milling with spindel controlled by M3/M4/M5
;Fusion 360 CAM 2.0.4860
; Posts processor: MPCNC_Mill_Laser.cps
; Gcode generated: Sunday, December 2, 2018 1:56:26 PM GMT
; Document: cam_testpp v5
; Setup: Setup1
;
; Ranges table:
; X: Min=2.588 Max=36 Size=33.412
; Y: Min=2.588 Max=36 Size=33.412
; Z: Min=-1 Max=15 Size=16
;
; Tools table:
; T1 D=3.175 CR=0 - ZMIN=-1 - flat end mill
; T2 D=1.5 CR=0 - ZMIN=-1 - flat end mill
; *** START begin ***
G90
G21
M84 S0
G92 X0 Y0 Z0
; COMMAND_TOOL_MEASURE
; --- PROBE TOOL begin ---
M0 Attach ZProbe
G28 Z
G92 Z0.8
G0 Z50 F300
M0 Detach ZProbe
; --- PROBE TOOL end ---
; *** START end ***
; *** SECTION begin ***
;2D Contour1 - Milling - Tool: 1 - 1/8inch flat end mill
; X Min: 2.588 - X Max: 49.412
; Y Min: 2.588 - Y Max: 49.412
; Z Min: -1 - Z Max: 15
M400
; COMMAND_START_SPINDLE
; COMMAND_SPINDLE_CLOCKWISE
; >>> Spindle Speed 21000
M3 S21000
; COMMAND_COOLANT_ON
M117 2D Contour1
G0 Z15
G0 X49.412 Y26 F2500
G0 Z5 F300
; MOVEMENT_PLUNGE
G1 Z1 F100
G1 Z-1
; 14
G1 Y49.412 F300
G1 X2.588
G1 Y2.588
G1 X49.412
G1 Y26
; MOVEMENT_RAPID
G0 Z15
; *** SECTION end ***
; *** SECTION begin ***
;2D Contour2 - Milling - Tool: 1 - 1/8inch flat end mill
; X Min: 9.587 - X Max: 42.412
; Y Min: 9.587 - Y Max: 42.412
; Z Min: -1 - Z Max: 15
M400
; COMMAND_START_SPINDLE
; COMMAND_SPINDLE_CLOCKWISE
; >>> Spindle Speed 20000
M3 S20000
; COMMAND_COOLANT_ON
M117 2D Contour2
G0 Z15 F300
G0 X42.412 Y26 F2500
G0 Z5 F300
; MOVEMENT_PLUNGE
G1 Z1 F100
G1 Z-1
; 14
G1 Y42.412 F300
G1 X9.587
G1 Y9.587
G1 X42.412
G1 Y26
; MOVEMENT_RAPID
G0 Z15
; *** SECTION end ***
; *** SECTION begin ***
; --- CHANGE TOOL begin ---
; COMMAND_COOLANT_OFF
M400
M300 S400 P2000
G0 Z50 F300
G0 X0 Y0 F2500
; COMMAND_STOP_SPINDLE
M5
M0 Put tool 2 - 1.5mm
; COMMAND_TOOL_MEASURE
; --- PROBE TOOL begin ---
M0 Attach ZProbe
G28 Z
G92 Z0.8
G0 Z50 F300
M0 Detach ZProbe
; --- PROBE TOOL end ---
; --- CHANGE TOOL end ---
;Trace1 - Milling - Tool: 2 - 1.5mm flat end mill
; X Min: 16 - X Max: 36
; Y Min: 16 - Y Max: 36
; Z Min: -1 - Z Max: 15
M400
; COMMAND_START_SPINDLE
; COMMAND_SPINDLE_CLOCKWISE
; >>> Spindle Speed 21000
M3 S21000
; COMMAND_COOLANT_ON
M117 Trace1
G0 Z15
G0 X36 Y36 F2500
G0 Z4 F300
; MOVEMENT_LEAD_IN
G1 Z-1 F300
; MOVEMENT_CUTTING
G1 Y16
G1 X16
G1 Y36
G1 X36
; MOVEMENT_LEAD_OUT
G1 Z4
; MOVEMENT_RAPID
G0 Z15
; *** SECTION end ***
; *** STOP begin ***
M400
; COMMAND_COOLANT_OFF
; COMMAND_STOP_SPINDLE
M5
G0 X0 Y0 F2500
M117 Job end
; *** STOP end ***Gcode of milling with spindel controlled by M3/M4/M5 with using Coolants (both A and B channels)
;Fusion 360 CAM 2.0.4860
; Posts processor: MPCNC_Mill_Laser.cps
; Gcode generated: Sunday, December 2, 2018 2:06:54 PM GMT
; Document: cam_testpp v5
; Setup: Setup1
;
; Ranges table:
; X: Min=2.588 Max=36 Size=33.412
; Y: Min=2.588 Max=36 Size=33.412
; Z: Min=-1 Max=15 Size=16
;
; Tools table:
; T1 D=3.175 CR=0 - ZMIN=-1 - flat end mill
; T2 D=1.5 CR=0 - ZMIN=-1 - flat end mill
; *** START begin ***
G90
G21
M84 S0
G92 X0 Y0 Z0
; COMMAND_TOOL_MEASURE
; --- PROBE TOOL begin ---
M0 Attach ZProbe
G28 Z
G92 Z0.8
G0 Z50 F300
M0 Detach ZProbe
; --- PROBE TOOL end ---
; *** START end ***
; *** SECTION begin ***
;2D Contour1 - Milling - Tool: 1 - 1/8inch flat end mill
; X Min: 2.588 - X Max: 49.412
; Y Min: 2.588 - Y Max: 49.412
; Z Min: -1 - Z Max: 15
M400
; COMMAND_START_SPINDLE
; COMMAND_SPINDLE_CLOCKWISE
; >>> Spindle Speed 21000
M3 S21000
; COMMAND_COOLANT_ON
; >>> Coolant A ON
M42 P11 S255
M117 2D Contour1
G0 Z15
G0 X49.412 Y26 F2500
G0 Z5 F300
; MOVEMENT_PLUNGE
G1 Z1 F100
G1 Z-1
; 14
G1 Y49.412 F300
G1 X2.588
G1 Y2.588
G1 X49.412
G1 Y26
; MOVEMENT_RAPID
G0 Z15
; *** SECTION end ***
; *** SECTION begin ***
;2D Contour2 - Milling - Tool: 1 - 1/8inch flat end mill
; X Min: 9.587 - X Max: 42.412
; Y Min: 9.587 - Y Max: 42.412
; Z Min: -1 - Z Max: 15
M400
; COMMAND_START_SPINDLE
; COMMAND_SPINDLE_CLOCKWISE
; >>> Spindle Speed 20000
M3 S20000
; COMMAND_COOLANT_ON
; >>> Coolant A OFF
M42 P11 S0
; >>> Coolant B ON
M42 P6 S255
M117 2D Contour2
G0 Z15 F300
G0 X42.412 Y26 F2500
G0 Z5 F300
; MOVEMENT_PLUNGE
G1 Z1 F100
G1 Z-1
; 14
G1 Y42.412 F300
G1 X9.587
G1 Y9.587
G1 X42.412
G1 Y26
; MOVEMENT_RAPID
G0 Z15
; *** SECTION end ***
; *** SECTION begin ***
; --- CHANGE TOOL begin ---
M400
G0 Z50 F300
G0 X0 Y0 F2500
; COMMAND_COOLANT_OFF
; >>> Coolant B OFF
M42 P6 S0
; COMMAND_STOP_SPINDLE
M5
M300 S400 P2000
M0 Put tool 2 - 1.5mm
; COMMAND_TOOL_MEASURE
; --- PROBE TOOL begin ---
M0 Attach ZProbe
G28 Z
G92 Z0.8
G0 Z50 F300
M0 Detach ZProbe
; --- PROBE TOOL end ---
; --- CHANGE TOOL end ---
;Trace1 - Milling - Tool: 2 - 1.5mm flat end mill
; X Min: 16 - X Max: 36
; Y Min: 16 - Y Max: 36
; Z Min: -1 - Z Max: 15
M400
; COMMAND_START_SPINDLE
; COMMAND_SPINDLE_CLOCKWISE
; >>> Spindle Speed 21000
M3 S21000
; COMMAND_COOLANT_ON
M117 Trace1
G0 Z15
G0 X36 Y36 F2500
G0 Z4 F300
; MOVEMENT_LEAD_IN
G1 Z-1 F300
; MOVEMENT_CUTTING
G1 Y16
G1 X16
G1 Y36
G1 X36
; MOVEMENT_LEAD_OUT
G1 Z4
; MOVEMENT_RAPID
G0 Z15
; *** SECTION end ***
; *** STOP begin ***
M400
; COMMAND_COOLANT_OFF
; COMMAND_STOP_SPINDLE
M5
G0 X0 Y0 F2500
M117 Job end
; *** STOP end ***Gcode of laser cutting
;Fusion 360 CAM 2.0.4860
; Posts processor: MPCNC_Mill_Laser.cps
; Gcode generated: Sunday, December 2, 2018 2:07:32 PM GMT
; Document: cam_testpp v5
; Setup: Setup2
;
; Ranges table:
; X: Min=-25 Max=25 Size=50
; Y: Min=-25.5 Max=25 Size=50.5
; Z: Min=0 Max=15 Size=15
;
; Tools table:
; T1 D=0 CR=0 - ZMIN=0 - laser cutter
; *** START begin ***
G90
G21
M84 S0
G92 X0 Y0 Z0
; COMMAND_TOOL_MEASURE
; *** START end ***
; *** SECTION begin ***
;2D Profile1 - Laser/Plasma - Cutting mode: auto
; X Min: -25 - X Max: 25
; Y Min: -25.5 - Y Max: 25
; Z Min: 0 - Z Max: 15
M400
; COMMAND_START_SPINDLE
; COMMAND_SPINDLE_COUNTERCLOCKWISE
; COMMAND_COOLANT_ON
M117 2D Profile1
G0 Z15 F300
G0 X-9.94 Y-10.5 F2500
G0 Z0 F300
; >>> LASER Power ON
M106 S200
; COMMAND_POWER_ON
; MOVEMENT_LEAD_IN
G1 Y-10 F1000
G1 X-9.95
; MOVEMENT_CUTTING
G1 X-10
G1 Y10
G1 X10
G1 Y-10
G1 X-9.95
; MOVEMENT_LEAD_OUT
G1 X-9.96
G1 Y-10.5
; >>> LASER Power OFF
M107
; COMMAND_POWER_OFF
; MOVEMENT_RAPID
G0 Z5 F300
G0 X-9.99 Y-25.5 F2500
G0 Z0 F300
; >>> LASER Power ON
M106 S200
; COMMAND_POWER_ON
; MOVEMENT_LEAD_IN
G1 Y-25 F1000
G1 X-10
; MOVEMENT_CUTTING
G1 X-25
G1 Y25
G1 X25
G1 Y-25
G1 X-10
; MOVEMENT_LEAD_OUT
G1 X-10.01
G1 Y-25.5
; >>> LASER Power OFF
M107
; COMMAND_POWER_OFF
; MOVEMENT_RAPID
G0 Z15 F300
; *** SECTION end ***
; *** STOP begin ***
M400
; COMMAND_COOLANT_OFF
; COMMAND_STOP_SPINDLE
G0 X0 Y0 F2500
M117 Job end
; *** STOP end ***Resorces
Post Processor Training Guide (PDF document)
Enhancements to the post processor property definitions
Library of exist post processors
How to set up a 4/5 axis machine configuration
Beginners Guide to Editing Post Processors in Fusion 360! FF121 (Youtube video)