All Metal Cobra Extruder



  • Just finished installing new extruder and all i get is a loud squeal and no movement. Need help not sure what is up with it.
    The information is as follows:
    Step motor rated current/Phase: 0.67 Amp. Rated voltage/Phases: 6.2 VDC
    1:13 Motor: Nema 11 Planetary Gearbox step Motor

    I have set amps to 536mA and have played with the steps.

    Config set up:
    ; Movement Section

    M569 P0 S0 ; X axis direction
    M569 P1 S0 ; Y axis direction
    M569 P2 S0 ; Z axis direction
    M569 P3 S0 ; Extruder Drive 0
    M569 P4 S0 ; Extruder Drive 1
    M574 X1 Y1 Z0 S0 ; set endstop configuration (X and Y endstop only, at low end, active high)
    M906 X1000 Y1000 Z800 E536 ; Set motor currents (mA)
    M201 X800 Y800 Z15 E500 ; Accelerations (mm/s^2)
    M203 X15000 Y15000 Z500 E3600 ; Maximum speeds (mm/min)
    M566 X600 Y600 Z30 E20 ; Minimum speeds mm/minute
    M208 X304 Y304 Z280 ; set axis maxima (adjust to suit your machine)
    M208 X0 Y0 Z0 S1 ; set axis minimum (adjust to make X=0 the edge of the bed)
    M92 X80.29 Y80.12 Z400 ; Set axis steps/mm
    ;M92 E420:420
    M92 E400 ; Set extruder steps per mm (single nozzle)
    ;M92 E420:420 ; Set extruder steps/mm (dual nozzle)
    M350 X16 Y16 E16 I1 ; Set 16x microstepping with interpolation



  • Your M350 line looks wrong to me your Z is missing also if the extruder motor is really 0.67 amps then you are driving it with 536 mA (think this gets rounded down to 500) I would try E400 but it would help if you posted the Motor type number which should be on it's body.

    Doug



  • Thanks Doug,
    Found the problem, it was my wiring. I changed my Extruder motor cable and it solved that issue. I was trying to use a cat 5 cable to run the extruder, hot end and temp. The nema 11 did not like the cable. I will add the Z to my M350. Motor is 28PA13G/28BYG45-067-4A


  • administrators

    Cat 5 cable should have been ok. I suspect you did not have the phases paired.



  • Hi Ron,

    I'm also using Cobra metal extruder.

    Try these settings:
    M906 X1000 Y1000 Z800 E1000 ; Set motor currents (mA)
    M201 X800 Y800 Z15 E300 ; Accelerations (mm/s^2)
    M203 X15000 Y15000 Z500 E2400 ; Maximum speeds (mm/min)
    M566 X600 Y600 Z30 E120 ; Minimum speeds mm/minute



  • @Guyaros:

    Hi Ron,

    I'm also using Cobra metal extruder.

    Try these settings:
    M906 X1000 Y1000 Z800 E1000 ; Set motor currents (mA)
    M201 X800 Y800 Z15 E300 ; Accelerations (mm/s^2)
    M203 X15000 Y15000 Z500 E2400 ; Maximum speeds (mm/min)
    M566 X600 Y600 Z30 E120 ; Minimum speeds mm/minute

    Thanks for the setting, my problem was wiring, most steppers I use it is a simple wire to wire ,however this stepper required a specific order. Once I figured it out it worked fine.
    For us newbies it is nice to be able to find help


Locked
 

Looks like your connection to Duet3D was lost, please wait while we try to reconnect.