@phaedrux said in Z Motors not moving:
I believe you're missing an M584 command to specify how your z axis motors are bound.
https://duet3d.dozuki.com/Wiki/Gcode#Section_M584_Set_drive_mapping
According to the doc "Any M584 commands used to remap drivers must come before M350 and M906 commands." M584 is only used to override defaults. I believe as long as X is 0 Y is 1 and Z is 2 you don't need to specify.
@dc42 excellent, thank you very much for all of your help!
I'm really enjoying the Duet interface and the overall experience.
I've searched through the forums but didn't see a clear answer for the following question.
I want to power my Duet's wifi via USB so that it stays powered on, and I can control the rest of the 12V power via a RFC receptacle. What isn't clear is that I don't have an ATX PSU, and don't care to switch at the moment.
Do I need to move the jumper from INT 5V EN to EXT 5V EN? Or is that only for something ATX specific, and the USB is separate? The documentation in the start up wiki isn't totally clear, so I just wanted to make sure.
Unless you plan to provide an external 5v source, you should at this time check that there is a jumper on "INT 5V EN" and NOT on "EXT 5V EN".
@wilriker I know marlin had the steps per mm at 100 100 400 for x y z but wasn’t sure if the steppers changed any of that.
I modified the thermistors like you exampled though.
What do you use for a bed offset? It looks like I’m not quite centered.
@dc42 "Perhaps they are high-inductance motors that need to be connected in parallel instead of in series."
That's exactly what I was thought too! Because if I left the jumpers on Z2 and only plugged one or the other motor in to Z1 that one motor was fine.
So I cut the wire, and spliced and soldered them together in parallel, and plugged the combined connector in to Z1 and left the jumpers on Z2 and it's working fantastically now.
@dc42 stock anet a8 motors.
I did just order 2 new nema17’s and new couplers because I can’t tell what part is failing.
@dc42 it might be the current set too low, I took the lead screws out of the spider couplers to just let them free spin.
They dont seem have much torque. If I just touch my finger to it, it almost immediately stops spinning.
@dc42 Connecting the Z2 motor to E1 stepper didn't do anything, so I assumed I messed up a crimp in the connector.
Everything looked ok, but I replaced them with a new set of crimps and connector, and it responded.
I hooked the Z1 and Z2 motors back up to the Z2 stepper and now I have another weird issue.
The Z end stop is wired correctly, when I press it with my finger the LED lights up.
The weirdness is when I home X or Y, the Z motors start moving one at a time up and down. If I press Z home they go all the way smash in to the Z stop but don't stop trying to keep moving down.
Here is a short video of it doing the X homing and then Z going nuts
https://www.youtube.com/watch?v=N5kH3gIMu8I&
@dc42 instead of that, I hooked Z1 up to the E1 stepper, and reconfigured the firmware with this M584 X0 Y1 Z4 E3 in the config.g.
And that does let the Z1 motor jog back and forth. So is it possible the Z2 stepper motor is bad? I suppose I can splice the Z1 and Z2 connectors to make it work, but I wouldn't be able to use a second extruder then...
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool on Wed May 02 2018 11:04:28 GMT-0400 (EDT)
; General preferences
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
; Network
M550 PScott's Tatara ; Set machine name
M552 S1 ; Enable network
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
M584 X0 Y1 Z4 E3 ; Apply custom drive mapping
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
M92 X80 Y80 Z4000 E420 ; Set steps per mm
M566 X900 Y900 Z12 E120 ; Set maximum instantaneous speed changes (mm/min)
M203 X6000 Y6000 Z180 E1200 ; Set maximum speeds (mm/min)
M201 X500 Y20 Z250 E250 ; Set accelerations (mm/s^2)
M906 X800 Y800 Z800 E800 I30 ; 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 X220 Y220 Z240 S0 ; Set axis maxima
; Endstops
M574 X1 Y1 Z1 S0 ; Set active low endstops
; Z-Probe
M558 P0 H5 F120 T6000 ; Set Z probe type to switch and the dive height + speeds
G31 P600 X0 Y0 Z0.1 ; Set Z probe trigger value, offset and trigger height
M557 X15:205 Y15:205 S20 ; Define mesh grid
; Heaters
M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
M143 H0 S110 ; Set temperature limit for heater 0 to 110C
M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S265 ; Set temperature limit for heater 1 to 265C
; Fans
M106 P0 S0 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
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 power saving
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; Set voltage thresholds and actions to run on power loss
; Custom settings are not configured
@dc42 I did a G91 and then G1 S2 Z10 F100 and no response.
When I put my hands on the Z motors I don't feel any vibrations whatsoever.
I don't see any damage to the stepper motor. I'll attach two photos from slightly different angles to show you.
@phaedrux said in Z Motors not moving:
I believe you're missing an M584 command to specify how your z axis motors are bound.
https://duet3d.dozuki.com/Wiki/Gcode#Section_M584_Set_drive_mapping
According to the doc "Any M584 commands used to remap drivers must come before M350 and M906 commands." M584 is only used to override defaults. I believe as long as X is 0 Y is 1 and Z is 2 you don't need to specify.