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    Laser engraving….

    Scheduled Pinned Locked Moved
    Tuning and tweaking
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    • flopoundefined
      flopo
      last edited by

      Hi everyone, and happy new year.
      I'm trying to config my Delta printer for laser engraving. When I send M452 the printer switches in laser mode but it uses FAN 0 to output for laser beam.
      How do I change the output to HEATER E1?
      I tried the command M452 P2 R255 F200 but nothing happens. It gives me an error: P2 Bad Parameter.
      Can anyone tell me how to config the right setting for the laser? Also, where do I put them in config.g?

      This is my config.g :

      ; Configuration file for Duet WiFi (firmware version 1.20 or newer)
      ; executed by the firmware on start-up
      ;
      ; generated by RepRapFirmware Configuration Tool on Thu Dec 28 2017 21:02:47 GMT+0100 (ora solare Europa occidentale)

      ; General preferences
      M111 S0 ; Debugging off
      G21 ; Work in millimetres
      G90 ; Send absolute coordinates…
      M83 ; ...but relative extruder moves
      M555 P2 ; Set firmware compatibility to look like Marlin
      M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000"

      ;*** The homed height is deliberately set too high in the following - you will adjust it during calibration.
      M665 L369.184 R134.167 H368.971 B110 ; Set delta radius, diagonal rod length, printable radius and homed height
      M666 X0.74 Y-0.81 Z0.06 ; Put your endstop adjustments here, or let auto calibration find them
      M208 Z0 S1 ; Set minimum Z

      ; Endstops
      M574 X2 Y2 Z2 S1 ; Set active high endstops
      M558 P5 R0.4 H5 F550 T6000 ; Set Z probe type to effector and the dive height + speeds
      G31 P100 X0 Y0 Z-0.163 ; Set Z probe trigger value, offset and trigger height
      M557 R110 S20 ; Define mesh grid

      ; Drives
      M569 P0 S0 ; Drive 0 goes backwards
      M569 P1 S0 ; Drive 1 goes backwards
      M569 P2 S0 ; Drive 2 goes backwards
      M569 P3 S1 ; Drive 3 goes forwards
      M350 X64 Y64 Z64 E64 I0 ; Configure microstepping without interpolation
      M92 X320.85 Y320.85 Z320.85 E390 ; Set steps per mm
      M566 X1000 Y1000 Z1000 E1000 ; Set maximum instantaneous speed changes (mm/min)
      M203 X18000 Y18000 Z18000 E1200 ; Set maximum speeds (mm/min)
      M201 X1000 Y1000 Z1000 E1000 ; Set accelerations (mm/s^2)
      M906 X1000 Y1000 Z1000 E800 I30 ; Set motor currents (mA) and motor idle factor in per cent
      M84 S30 ; Set idle timeout

      ; Heaters
      M301 H0 S1.00 P10 I0.1 D200 T0.4 W180 B30 ; Use PID on bed heater (may require further tuning)
      M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
      M143 H0 S100 ; Set temperature limit for heater 0 to 100C
      M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1
      M143 H1 S280 ; Set temperature limit for heater 1 to 280C

      ; Tools
      M563 P0 D0 H1 ; Define tool 0
      G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets
      G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C

      ; Network
      M550 PDelta Star ; Set machine name
      M552 S1 ; Enable network
      M587 S"fiore_wifi2" P"fiorello1" I192.168.0.24 J192.168.0.1 K255.255.255.0 ; Configure access point and IP addresses. You can delete this line once connected
      M586 P0 S1 ; Enable HTTP
      M586 P1 S1 ; Enable FTP
      M586 P2 S0 ; Disable Telnet

      ; Fans
      M106 P0 S0 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
      M106 P1 S0 I0 F500 H-1 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off
      M106 P2 S1 I0 F500 H0:1 T50 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

      ; Custom settings
      M572 D0 S0.25 ; Set control pressure nozzle

      ; Miscellaneous
      M501 ; Load saved parameters from non-volatile memory

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      • dc42undefined
        dc42 administrators
        last edited by

        Which facility are you using to set the laser PWM: E values on the G1 commands, or M3 commands between the G1 commands?

        Either way, you first need to make the E1 heater output (heater 2) available as a GPIO pin by sending M307 H2 A-1 C-1 D-1. After that:

        • If you are using E values on the G1 commands, send M571 P2
        • If you are using M3 commands, send your M452 P2 command after that.

        Duet WiFi hardware designer and firmware engineer
        Please do not ask me for Duet support via PM or email, use the forum
        http://www.escher3d.com, https://miscsolutions.wordpress.com

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