PrintrBot Simple Metal Conversion



  • Hey Everyone,

    New here but glad to finally be a Duet User and getting rid of the printrboard. I am new to the custom Gcode configuration side of 3D printing but I had a shot at setting up my printer so far and need some help getting it to actually print so any suggestions to how to better set up my Gcode would be amazing.

    I am running a PrintrBot Simple Metal with the Duetwifi. The hotend is the E3D V6. The stepper motors are Kysan 1124090 (https://goo.gl/G2a931) The X and Y are normal mechanical endstops and I am running a Mini Differential IR sensor for the Z Probe and endstop.

    Here is the previous information from the Printrboard:
    (accelerations, steps/mm, etc)
    https://goo.gl/KvCNxi

    The printer homes all axis, rather slow but it works and all endstops activate and the Z Probe stops at 2.5mm above the bed. Fans all run and the hotend and heated but heat up and it extrudes plastic.

    That is as far as I have gotten, I tried to print and realized the Z offset wasn't set up and luckily it just bored a hole into an old bed surface. Here is my Config file, so let me know what is wrong and what would be helpful to change!

    ; Configuration file for Duet WiFi (firmware version 1.21)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool on Mon Aug 13 2018 00:33:59 GMT-0400 (Eastern Daylight Time)

    ; General preferences
    M111 S0 ; Debugging off
    G21 ; Work in millimetres
    G90 ; Send absolute coordinates...
    M83 ; ...but relative extruder moves
    M555 P1 ; Set firmware compatibility to look like RepRapFirmare

    ; Network
    M552 S1 ; Enable network
    ;*** Access point is configured manually via M587
    M586 P0 S1 ; Enable HTTP
    M586 P1 S0 ; Disable FTP
    M586 P2 S0 ; Disable Telnet

    ; Drives
    M569 P0 S0 ; Drive 0 goes forwards
    M569 P1 S0 ; Drive 1 goes forwards
    M569 P2 S0 ; Drive 2 goes forwards
    M569 P3 S0 ; Drive 3 goes forwards
    M569 P4 S0 ; Drive 4 goes forwards
    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
    M92 X80 Y80 Z2020 E96 ; Set steps per mm
    ;M92 E420:420 ; set extruder 0 and 1 steps/mm
    M566 X900 Y900 Z12 E120 ; Set maximum instantaneous speed changes (mm/min)
    M203 X9000 Y9000 Z360 E1000 ; Set maximum speeds (mm/min)
    M201 X2000 Y2000 Z30 E10000 ; Set accelerations (mm/s^2)
    M906 X1000 Y1000 Z900 E800 ; Set motor currents (mA)
    M84 S30 ; Set idle timeout

    ; Axis Limits
    M208 X0 Y0 Z0 S1 ; Set axis minima
    M208 X250 Y150 Z150 S0 ; Set axis maxima

    ; Endstops
    M574 X1 Y1 S1 ; Set active high endstops

    ; Z-Probe
    M574 Z1 S2 ; Set endstops controlled by probe
    M558 P1 H5 F120 T6000 ; Set Z probe type to unmodulated and the dive height + speeds
    G31 P500 X0 Y0 Z2.5 ; Set Z probe trigger value, offset and trigger height
    M557 X15:235 Y15:135 S20 ; Define mesh grid

    ; Heaters
    M307 H0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
    M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
    M143 H0 S120 ; Set temperature limit for heater 0 to 120C
    M305 P1 T100000 B4725 C7.060000e-8 R4700 ; Set thermistor + ADC parameters for heater 1
    M143 H1 S280 ; Set temperature limit for heater 1 to 280C

    ; Fans
    M106 P0 S1 I0 F500 H1 T45 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
    M106 P1 S1 I0 F500 H-1 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off
    M106 P2 S1 I0 F500 H-1 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned off

    ; 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

    ; Automatic saving after power loss is not enabled

    ; Custom settings are not configured


  • administrators

    Please also post your homex.g, homey.g, homez.g and homeall.g files.

    Does your printer have a Z endstop switch, or does it use a Z probe for homing Z?



  • @dc42 There is no mechanical endstop for the Z axis, previously it was using an inductive sensor as an endstop and z probe for "bed leveling"

    ; homeall.g
    ; called to home all axes
    ;
    ; generated by RepRapFirmware Configuration Tool on Mon Aug 13 2018 00:33:59 GMT-0400 (Eastern Daylight Time)
    G91 ; relative positioning
    G1 Z5 F6000 S2 ; lift Z relative to current position
    G1 S1 X-255 Y-155 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
    G1 X5 Y5 F6000 ; go back a few mm
    G1 S1 X-255 Y-155 F360 ; move slowly to X and Y axis endstops once more (second pass)
    G90 ; absolute positioning
    G1 X15 Y15 F6000 ; go to first bed probe point and home Z
    G30 ; home Z by probing the bed

    ; Uncomment the following lines to lift Z after probing
    ;G91 ; relative positioning
    ;G1 S2 Z5 F100 ; lift Z relative to current position
    ;G90 ; absolute positioning

    ; homex.g
    ; called to home the X axis
    ;
    ; generated by RepRapFirmware Configuration Tool on Mon Aug 13 2018 00:33:59 GMT-0400 (Eastern Daylight Time)
    G91 ; relative positioning
    G1 Z5 F6000 S2 ; lift Z relative to current position
    G1 S1 X-255 F1800 ; move quickly to X axis endstop and stop there (first pass)
    G1 X5 F6000 ; go back a few mm
    G1 S1 X-255 F360 ; move slowly to X axis endstop once more (second pass)
    G1 Z-5 F6000 S2 ; lower Z again
    G90 ; absolute positioning

    ; homey.g
    ; called to home the Y axis
    ;
    ; generated by RepRapFirmware Configuration Tool on Mon Aug 13 2018 00:33:59 GMT-0400 (Eastern Daylight Time)
    G91 ; relative positioning
    G1 Z5 F6000 S2 ; lift Z relative to current position
    G1 S1 Y-155 F1800 ; move quickly to Y axis endstop and stop there (first pass)
    G1 Y5 F6000 ; go back a few mm
    G1 S1 Y-155 F360 ; move slowly to Y axis endstop once more (second pass)
    G1 Z-5 F6000 S2 ; lower Z again
    G90 ; absolute positioning

    ; homez.g
    ; called to home the Z axis
    ;
    ; generated by RepRapFirmware Configuration Tool on Mon Aug 13 2018 00:33:59 GMT-0400 (Eastern Daylight Time)
    G91 ; relative positioning
    G1 Z5 F6000 S2 ; lift Z relative to current position
    G90 ; absolute positioning
    G1 X15 Y15 F6000 ; go to first probe point
    G30 ; home Z by probing the bed

    ; Uncomment the following lines to lift Z after probing
    ;G91 ; relative positioning
    ;G1 S2 Z5 F100 ; lift Z relative to current position
    ;G90 ; absolute positioning



  • You'll need to find the actual trigger height for your z probe.

    https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe#Section_Calibrate_the_Z_probe_trigger_height

    you should also measure the X and Y distance between the probe center and the nozzle tip.

    That will provide the X, Y, and Z values for your G31 command in config.g.



  • @underdonesushi said in PrintrBot Simple Metal Conversion:

    The printer homes all axis, rather slow ...........................

    That's the "F" (feedrate) parameter in the G1 moves for your homing files. I'd leave the slow second pass at 360 but if you want to speed things up, you could try changing the F1800 (30mm/sec) values to 3600 (60mmm/sec) or 4800 (80mm/sec) or even more if you feel it's still too slow and if the machine will take it. You have it set to 6000 (100mm/sec) for the XY move in the home Z but 1800 in the home X and home Y.


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