Using E1 to run second Y Stepper?



  • Hi! I've banged my head against the Printer all night, and finally got everything working on my FT-5... Well, sort of....

    I'm using a Duet 2 wifi 1.40A

    I was under the impression that I could use the second extruder driver to run my second Y stepper, as the FT-5 uses both dual Z and Dual Y motors.

    For the life of me, no matter what I try, the E1 doesn't move anything... I have however somehow linked my X and Y axis, so that when I move either X or Y, both the X and Y axis move together...

    I'm sure it's something I'm doiung, but could one of you experienced guys tell me if A:)what I'm trying to do is even possible, and B:) if so, what do you see wrong with my config?

    I went from knowing absolutely nothing at the start of the night, and I've figured out all sorts of stuff now. I just can't get to the bottom of this.

    My second Y is plugged into E1.

    Thanks in Advance!

    ;Drives
    M569 P0 S0 ; Drive 0 goes Backwards - X
    M569 P1 S0 ; Drive 1 goes Backwards - Y
    M569 P2 S0 ; Drive 2 goes Backwards - Z
    M569 P3 S1 ; Drive 3 goes forwards - E0
    M569 P4 S0 ; Drive 4 goes Backwards - Y

    M350 X16 Y16 Z16 E16:16 I1 ; Configure microstepping with interpolation
    M92 X80.00 Y80.00 Z400.00 E412.00:80.00 ; Set steps per mm
    M566 X900.00 Y900.00 Z12.00 E120.00:900.00 ; Set maximum instantaneous speed changes (mm/min)
    M203 X6000.00 Y6000.00 Z180.00 E1200.00:6000.00 ; Set maximum speeds (mm/min)
    M201 X500.00 Y500.00 Z20.00 E250.00:500.00 ; Set accelerations (mm/s^2)
    M906 X800.00 Y800.00 Z800.00 E800.00:800.00 I60 ; Set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout

    ; Axis Limits
    M208 X0 Y0 Z0 S1 ; Set axis minima
    M208 X266 Y266 Z360 S0 ; Set axis maxima

    ; Endstops
    M574 X1 Y1 S1 ; Set active high endstops
    M574 X1 Y2 S1 ; X home to min. Y home to max. Normally Closed limit switches.
    M574 Z1 S2 ; Define Z to use Probe. Home to Min


  • administrators

    @steve-lynch said in Using E1 to run second Y Stepper?:

    I was under the impression that I could use the second extruder driver to run my second Y stepper, as the FT-5 uses both dual Z and Dual Y motors.

    For the life of me, no matter what I try, the E1 doesn't move anything... I have however somehow linked my X and Y axis, so that when I move either X or Y, both the X and Y axis move together...

    I'm sure it's something I'm doiung, but could one of you experienced guys tell me if A:)what I'm trying to do is even possible, and B:) if so, what do you see wrong with my config?

    You need to use M584 in your config.g to assign driver 4 to Y and un-assign it from your extruders:

    M584 X0 Y1:4 Z2 E3

    Put this either before or immediately after the M569 commands, so that it is before any M906 or M350 commands.

    As you will then have only one extruder, you will need to change all occurrences of Ennn:nnn to just Ennn.



  • Hi! Thank you soooooMuch!

    Here's My Config in total.

    Would you mind pointing out whether or not I've got it right?

    Also, here's the deal: My X and Y are linked somehow. The carriage runs to the endstop, then grinds against the side until both the X and Y show Homed on the Screen. However, it's never actually touching the Y endstop. It shows that it homes however.

    Is there anywhere else where I may have somehow tied the two together?

    Wiring is correct. If I use a stepper Driver tester I made, and plug each stepper in, I can move them one by one with the tester. They're all plugged into the proper ports as well. I triple checked even though they're wire loomed and labeled from before I switched.

    ; Configuration file for Duet WiFi (firmware version 1.21)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v2 on Thu Dec 20 2018 03:07:21 GMT-0500 (Eastern Standard Time)

    ; General preferences
    G90 ; Send absolute coordinates...
    M83 ; ...but relative extruder moves

    M667 S1 ; Select CoreXY mode

    ; Network
    M550 P"FT-5" ; Set machine name
    M551 P"internet: ; Set password
    M552 S1 ; Enable network
    M587 S"FT-5" P"internet" ; 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
    M584 X0 Y1:4 Z2 E3
    M569 P0 S0 ; Drive 0 goes Backwards - X
    M569 P1 S0 ; Drive 1 goes Backwards - Y
    M569 P2 S0 ; Drive 2 goes Backwards - Z
    M569 P3 S1 ; Drive 3 goes forwards - E0
    M569 P4 S0 ; Drive 4 goes Backwards - Y

    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
    M92 X80.00 Y80.00 Z400.00 E412.00 ; Set steps per mm
    M566 X900.00 Y900.00 Z12.00 E120.00 ; Set maximum instantaneous speed changes (mm/min)
    M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; Set maximum speeds (mm/min)
    M201 X500.00 Y500.00 Z20.00 E250.00 ; Set accelerations (mm/s^2)
    M906 X800.00 Y800.00 Z800.00 E800.00 I60 ; Set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout

    ; Axis Limits
    M208 X0 Y0 Z0 S1 ; Set axis minima
    M208 X266 Y266 Z360 S0 ; Set axis maxima

    ; Endstops
    M574 X1 Y1 S0 ; Set active high endstops
    M574 X1 Y2 S0 ; X home to min. Y home to max. Normally Closed limit switches.
    M574 Z1 S2 ; Define Z to use Probe. Home to Min

    ; BLTouch - Heaters
    M307 H3 A-1 C-1 D-1 ; Disable the 7th Heater to free up PWM channel 5 on the Duex board.
    M558 P9 H5 F200 T2000 X0 Y0 Z1 ; Set Z probe type/mode 5. H=Dive Height. F=Speed the bed moves
    G31 P25 X0 Y-43 Z0.0 ; Z probe trigger value, offset in relation to nozzle. And trigger height adjustment

    M557 X15:266 Y15:266 S40 ; Define mesh grid

    ; Heaters
    M140 H1 ; Remap heated bed to heater 1
    M307 H1 B1 S1.0 ; Enable bang-bang mode for the bed heater and set PWM limit
    M305 P1 T10000 B4066 R4700 X0 ; Set thermistor + ADC parameters for heater 1 and remap it to channel 0
    M143 H1 S120 ; Set temperature limit for heater 1 to 120C
    M305 P2 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 2
    M143 H2 S280 ; Set temperature limit for heater 2 to 280C

    ; Fans
    M106 P0 S0.3 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
    M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
    M106 P2 S1 I0 F200 H1 T45 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

    ; Tools
    M563 P0 S"E3dV6" D0 H2 ; 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



  • Hi

    Seems you have configured it as Core XY printer, but it is not as far as i know. So delete line "M667 S1 ; Select CoreXY mode" or comment it out and all should work ok then.



  • And That was it! Thank you so much for your consideration... everything is running smoothly as of now.. the only issue is the gantry stalling at the end stop and vibrating for 15 seconds on each axis...

    Should My Mechanical end stops be set to 0 or 1? Ive tried both.

    would it do that if I told it to home farther than it can go? I mean ignore the end stops?

    Thanks again! I'm almost there, and I'll pester you no more! This thing is sooo smooth!



  • Sounds like your endstop switches dont trigger or your homeing files arent configured correctly. I reccomend to read https://duet3d.dozuki.com/Wiki/Connecting_endstop_switches and/or https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCartesianPrinter#Section_Homing_files.



  • @dc42 said in Using E1 to run second Y Stepper?:

    M584 X0 Y1:4 Z2 E3

    Just to follow up.... I found my main issue... I didn't realize that Dual Y motors had to rotate in different directions.... Just never dawned on me.... The 2 motors were fighting each other! They were previously spliced together in parallell, so once I split them I needed to flip the wires around again.

    Thanks for all the assistance!


  • administrators

    @steve-lynch said in Using E1 to run second Y Stepper?:

    @dc42 said in Using E1 to run second Y Stepper?:

    M584 X0 Y1:4 Z2 E3

    Just to follow up.... I found my main issue... I didn't realize that Dual Y motors had to rotate in different directions.... Just never dawned on me.... The 2 motors were fighting each other! They were previously spliced together in parallell, so once I split them I needed to flip the wires around again.

    Thanks for all the assistance!

    No need to rewire, you can change the motor direction on individual drivers using the M569 command.


 

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