All Metal Cobra Extruder

[ronnien59]

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

[Dougal1957]

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

[ronnien59]

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

[dc42]

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

[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

[ronnien58]

@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