Everything went fine, except for G30?! (RADDS-RRF)

  • I'm very impressed with this little piece of tech, if I can get it going, it'll save me so much trouble. Unfortunately, I can't test the probe with G30, despite it seeming to work on the effector end. The Green LED does react to tapping, and M119 says the Z-Probe is at min stop when not being tapped. Inverting M558 does not seem to get G30 to work, although it does lower the nozzle, I can't get it to react, despite the light turning green.

    My electronics are the RADDS 1.5 + Arduino Due, with the dc42 fork of Reprap Firmware 1.21RC3.

    I have literally everything else working. Fans, lights, hotend, thermistor, the works. I just can't get the Z-probe to work correctly!

  • Included in this followup post, is my config.g and bed.g Do you see anything amiss?

    ; Configuration file for RADDS 1.5 (firmware version 1.17 to 1.19)
    ; executed by the firmware on start-up
    ; General preferences
    M550 PCyberDelta Plus 2187 V3.0 Championship Edition: Round Deux ; Machine name
    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 RepRapFirmare
    M575 P1 B57600 S1					; Comms parameters for PanelDue
    ;*** The homed height is deliberately set too high in the following - you will adjust it during calibration.
    M665 R116 L288.12 B116 H225.9 X0 Y0; Set delta radius, diagonal rod length, printable radius and homed height, as well as XY tower corrections
    M666 X0 Y0 Z0 ; Put your endstop adjustments here, or let auto calibration find them
    M208 Z0 S1 ; Set minimum Z
    ; Endstops/Probing
    G31  P100 X0 Y0 Z-0.1     ; Set Z-Probe Height and offsets.
    M574 X2 Y2 Z2 E0 S1       ; All endstops at high end, Active high
    M558 P5 R0.4 I1 H3 F1000 T1000       ;P = Z-Probe Type, 0 for none. I = inversion XYZ = use probe for homing axis. F = Feed Rate/Probing Speed. T = Travel Speed.
    M557 R116 S20
    ; Drives
    M569 P0 S1 ; Drive 0 goes forwards
    M569 P1 S1 ; Drive 1 goes forwards
    M569 P2 S1 ; Drive 2 goes forwards
    M569 P3 S1 ; Drive 3 goes forwards
    M92 X80 Y80 Z80 E80 ; Set steps per mm
    M566 X1200 Y1200 Z1200 E1200 ; Set maximum instantaneous speed changes (mm/min)
    M203 X18000 Y18000 Z18000 E1200 ; Set maximum speeds (mm/min)
    M201 X1500 Y1500 Z1500 E1000 ; Set accelerations (mm/s^2)
    ;M906 X800 Y800 Z800 E800 I60 ; Set motor currents (mA) and motor idle factor in per cent, It probably isn't supported in RADDS.
    M84 S30 ; Set idle timeout
    ; Heaters
    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 S300 ; Set temperature limit for heater 1 to 300C
    M570 H1 P30 T10 S120 ; Give more time to heat up
    M302 P1 ; Allows for Cold Extrusion
    ; 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
    ;M563 S1 ; Allows for tool nomenclature compatibility between Slic3r and RepRap (Tools 0&1 vs Tools 1&2)
    ; Network
    M552 S0 ; Disable network
    ; Fans
    ;Old M106 P0 S1 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
    ;This is old M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
    M106 P0 S255 T60 H1 ; Hotend cooling fan: Enable to auto kick on at 60c (make it 'thermostatic'). 
    M106 P1 H-1    ; Filament cooling fan: Must do H-1, or it'll turn on with P0 for some reason.
    M106 P1 S0     ; Filament cooling fan: Must do, or it will go full blast on start
    ; Custom settings are not configured
    ; bed.g file for RepRapFirmware, generated by Escher3D calculator
    ; 16 points, 7 factors, probing radius: 116, probe offset (0, 0)
    G30 P0 X0.00 Y116.00 Z-99999 H0
    G30 P1 X58.00 Y100.46 Z-99999 H0
    G30 P2 X100.46 Y58.00 Z-99999 H0
    G30 P3 X116.00 Y0.00 Z-99999 H0
    G30 P4 X100.46 Y-58.00 Z-99999 H0
    G30 P5 X58.00 Y-100.46 Z-99999 H0
    G30 P6 X0.00 Y-116.00 Z-99999 H0
    G30 P7 X-58.00 Y-100.46 Z-99999 H0
    G30 P8 X-100.46 Y-58.00 Z-99999 H0
    G30 P9 X-116.00 Y-0.00 Z-99999 H0
    G30 P10 X-100.46 Y58.00 Z-99999 H0
    G30 P11 X-58.00 Y100.46 Z-99999 H0
    G30 P12 X0.00 Y58.00 Z-99999 H0
    G30 P13 X50.23 Y-29.00 Z-99999 H0
    G30 P14 X-50.23 Y-29.00 Z-99999 H0
    G30 P15 X0 Y0 Z-99999 S8

  • administrators

    I have looked into this, and I think there is a mistake in the pin assignment for the Z probe input pin in the RADDS build. Currently it is set to 5, however I think it was meant to be pin A5 on the Arduino Due, which would make it the AUX ADC pin on RADDS. Is that the pin that you have the Smart Effector OUT pin connected to?

  • I have them on the old Z-Probe pins, which are on the PWM3 header, as seen below. I am only using the pins designated by the arrows:

  • administrators

    I think the pin you need to use to match the existing pin assignment is PWM1. Alternatively, use PWM3 but change the M558 command from P5 to P4.

  • Is there a notable difference between the two? Would it be worth soldering that header in, you think? And for what it's worth, G30 definitely stopped on setting 4, so that's certainly an inch closer!

  • Having recently come across this thread I tried changing from M558 P4 connected via PWM3 to M558 P5 connected via AUX ADC. I'm glad I did! For me it made a huge difference. With P4 I struggled to achieve multipoint probing with a 0.04mm threshold and up to 6 repeats, but now with P5 I can do it with 0.01mm with usually no repeats. G32 calibration now reports a deviation of around 0.01mm, whereas before I might get 0.045mm at best. I'm using a very sensitive mechanical nozzle probe built into an effector I'm developing, consisting of a bolt-and-washer circuit breaker with adjustable sensitivity (will upload to Thingiverse in due course). I can't say whether changing from P4 to P5 would benefit the Smart Effector but it's definitely worth a try.

  • administrators

    @spinor, I'm glad it helped. For the Smart Effector we recommend P8, which is like P5 but with the filtering turned off for faster response.

  • administrators

    Yes P8 is slightly better than P5 but not supported in earlier firmware versions.

  • @dc42 said in Everything went fine, except for G30?! (RADDS-RRF):

    Yes P8 is slightly better than P5 but not supported in earlier firmware versions.

    Great, I'll try it out.


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