Anycubic Linear + Delta autohome issue



  • 3_1533574006597_config.g 2_1533574006597_homedelta.g 1_1533574006597_bed.g 0_1533574006596_config-override.g Anycubic Linear + Delta with Duet 3d and Smart Effector

    Hi,

    I've just returned back to this printer after a few months as I was recovering from an operation so I'm struggling to remember exactly what I did to break it.

    Basically when I press autohome, it seems like one of the axis is going down whilst the others go up. But then sometimes it looks like it is skipping back and forth. I really don't know what's wrong.

    I've made a video which I'll link (this is after pressing autohome) and I've attached the important files (let me know if I've missed an important one). Please somebody tell me where I'm going wrong.

    This only seemed to happen when I had a problem with the extruder which i mentioned on here, and I changed the stepper settings from 663 steps per mm to 96 as it looked to be incorrectly set.

    https://www.youtube.com/watch?v=wkOscl-9MJw

    Many Thanks

    Here's the config and homedelta to save you opening up the file:

    ; Configuration file for Duet WiFi (firmware version 1.20 or newer)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool on Mon Jun 18 2018 19:57:02 GMT+0100 (British Summer Time)

    ; General preferences
    G90 ; Send absolute coordinates...
    M82 ; ...but absolute extruder moves

    ;*** The homed height is deliberately set too high in the following - you will adjust it during calibration.
    M665 R136 L288.15 B120 H217 ; Set delta radius, diagonal rod length, printable radius and homed height
    M666 X0 Y0 Z0 ; Put your endstop adjustments here, or let auto calibration find them

    ; Network
    M550 PMy printer ; Set machine name
    M552 S1 ; Enable network
    M587 S"---------------------- ; Configure access point. You can delete this line once connected
    M586 P0 S1 ; Enable HTTP
    M586 P1 S0 ; Disable FTP
    M586 P2 S0 ; Disable Telnet

    ; 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
    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
    M92 X80 Y80 Z80 E96 ; 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 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

    ; Axis Limits
    M208 Z0 S1 ; Set minimum Z

    ; Endstops
    M574 X2 Y2 Z2 S1 ; Set active high endstops

    ; Z-Probe
    M558 P5 R0.4 H5 F1200 T6000 ; Set Z probe type to effector and the dive height + speeds
    G31 P100 X0 Y0 Z-0.211 ; Set Z probe trigger value, offset and trigger height
    M557 R120 S20 ; Define mesh grid

    ; Heaters
    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 B4138 C0 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 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
    M106 P1 S1 I0 F500 H1 T45 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

    ; 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
    M501
    ; Automatic saving after power loss is not enabled

    ; Custom settings are not configured

    Home Delta:
    ; homedelta.g
    ; called to home all towers on a delta printer
    ;
    ; generated by RepRapFirmware Configuration Tool on Mon Jun 18 2018 19:57:02 GMT+0100 (British Summer Time)
    G91 ; relative positioning
    ;*** Slow homing has been configured. Change F180 to F1800 below when your configuration is working
    G1 S1 X355 Y355 Z355 F180 ; move all towers to the high end stopping at the endstops (first pass)
    G1 X-5 Y-5 Z-5 F1800 S2 ; go down a few mm
    ;*** Slow homing has been configured. Change F180 to F360 below when your configuration is working
    G1 S1 X10 Y10 Z10 F180 ; move all towers up once more (second pass)
    G1 Z-5 F6000 ; move down a few mm so that the nozzle can be centred
    G90 ; absolute positioning
    G1 X0 Y0 F6000 ; move X+Y to the centre



  • Looks like your motor wiring is not correct. Did you checked if the motor windings match the connections on the board?


  • administrators

    Test the motor that is going down using G92 followed by G1 S2 moves, as described at https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareDeltaPrinter#Section_Testing_the_motors_individually. If that motor always goes down whether you command it up or down then there is either a bad connection in the motor cable, or possibly a blown stepper driver chip, or just possibly a blown motor.



  • Please keep in mind that the Anycubic Kossel has at least one published manual in which it indicates the motor pattern incorrectly. The pattern, if facing the machine(where the lcd is typically mounted), X is to your left. Z is in the MIDDLE, and Y is on the right upright. Another way to think about it is that starting with X on the left upright, if you go counterclockwise you'll have X -> Y > Z.

    This single error has caused so many issues for Anycubic I started writing an auto-response to people posting in the marlin github.

    I made this mistake when I originally purchased a Kossel.... but then I got pissed off at Anycubic and returned it, turned it into two Ender 3's. 😃

    Anyways, I hoep this is your issue.



  • Guys, I just performed a home perfectly.

    I had the motors set incorrectly (x>z>y) and the end stops set incorrectly - along with a loose connection on one.

    Thanks a bunch. will get to work on getting it to print later 🙂



  • @sparkymark79 glad that was it man.. lol, between the fb groups, forums, and github repos I regular... I have probably seen people with this problem close to a hundred times at this point.. I still have the manual with the incorrect(but seemingly correct-looking) layout.


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