Duet 2 wifi calibration - Anycubic Predator

Danal

I would highly recommend removing M564 H0 ; Allows axis movement before homing from your config.g.

And, in your homedelta.g, the last line is commented out, it should be active:

~~;G1 X0 Y0 F6000 ; move X+Y to the centre~~
G1 X0 Y0 F6000 ; move X+Y to the centre

gperman

@Danal said in Duet 2 wifi calibration - Anycubic Predator:

@gperman said in Duet 2 wifi calibration - Anycubic Predator:

Warning: motor phase B may be disconnected reported by driver(s) 0

This is usually a bad crimp or other wiring problem. Given that this is a brand new setup, also check: https://duet3d.dozuki.com/Wiki/Choosing_and_connecting_stepper_motors#Section_Identifying_the_stepper_motor_phases

Once you've identified the phases, be sure that they are plugged into the duet connector such that if the pins were numbered 1234, one of the phases is plugged into 12, and the other phase into 34. It doesn't matter which. If the motor turns backwards, use M569 to reverse it.

I checked the phases initially when i first wired everything but gave it a second check just now. I have 2-3 ohms resistance on wires plugged into 1-2 and 3-4 to the duet board but no continuity to 1(or 2)-3(or 4). The steppers are 6 pin from Anycubic and worked with the trigorilla board. I pulled the pins carefully and checked the crimps. They were all perfect and held continuity through the harness going from the board to the steppers for each wire.

I removed M564 H0 ; Allows axis movement before homing

and activated G1 X0 Y0 F6000 ; move X+Y to the centre.

I connected to Duet web control (always spotty connection, working on upgrading my router. Maybe that'll help.), uploaded the new config.g and homedelta.g and hit 'home all axes' button. Same results. Horrible noise from steppers, two of them move. Hit endstops and stop shy of the ceiling but continue to make noise.

Still get the same error:
Warning: motor phase B may be disconnected reported by driver(s) 0

Then I turn off the power switch.

Danal

Phases sound OK.

You say those are six wire motors. Normally, the two extra wires are "center taps". Which would not be used on a Duet. I'm trying to think of a good way to verify that we have the coil (phase) pairs, and not the center taps. You sound like you grasp all this pretty well, and it is probably enough for me just to say "be sure we don't have a center tap".

Do you happen to have any other stepper motors? Or stepper drivers? Time to do some very basic "swap and verify" things...

Carlo

Hi,

This is how my Predator motors are wired to Duet2

duet2 motor.jpg

Thanks
C

Danal

Ah, six, but only four populated. Forget what I said about six, above

gperman

@Carlo said in Duet 2 wifi calibration - Anycubic Predator:

Hi,

This is how my Predator motors are wired to Duet2

Thanks
C

That is how mine is wired now.

droftarts

@Carlo There's no way to know if that is the correct order for the wires. It depends on the internal wiring of the motor.

You need to plug the loom into the motor, and check continuity at the connector on the Duet end. You should have continuity between pin 1 and 2, and between pin 3 and 4, but not any other eg pin 1 to 3 or 4.

See https://duet3d.dozuki.com/Wiki/Choosing_and_connecting_stepper_motors#Section_Identifying_the_stepper_motor_phases

Ian

gperman

@Danal said in Duet 2 wifi calibration - Anycubic Predator:

Phases sound OK.

You say those are six wire motors. Normally, the two extra wires are "center taps". Which would not be used on a Duet. I'm trying to think of a good way to verify that we have the coil (phase) pairs, and not the center taps. You sound like you grasp all this pretty well, and it is probably enough for me just to say "be sure we don't have a center tap".

Do you happen to have any other stepper motors? Or stepper drivers? Time to do some very basic "swap and verify" things...

I don't have spare drivers, I have a spare 4 wire stepper and a spare 6 wire, neither are the same unlabelled type steppers Anycubic supplies.

Danal

@gperman said in Duet 2 wifi calibration - Anycubic Predator:

@Danal said in Duet 2 wifi calibration - Anycubic Predator:

Phases sound OK.

You say those are six wire motors. Normally, the two extra wires are "center taps". Which would not be used on a Duet. I'm trying to think of a good way to verify that we have the coil (phase) pairs, and not the center taps. You sound like you grasp all this pretty well, and it is probably enough for me just to say "be sure we don't have a center tap".

Do you happen to have any other stepper motors? Or stepper drivers? Time to do some very basic "swap and verify" things...

I don't have spare drivers, I have a spare 4 wire stepper and a spare 6 wire, neither are the same unlabelled type steppers Anycubic supplies.

You might try one of those plugged into the Duet, just to see if it turns smoothly, or makes the same noise. I'd unplug all the other steppers, just for debugging.

Power off when changing motor plugs, of course.

Carlo

@droftarts
Hi,

I was simply illustrating the 4 vs 6 wire on the predator motors and made no mention of how to wire...

Thanks

gperman

Solved one issue.

One wire on the wire harness for the X tower wire was severed at the molex crimp underneath the insulation. Recrimped. Homes fine. Moving axes works fine.

Still running through other procedures and need to dial in bed leveling which I haven't tried yet.

I'm still having issues with the wifi module not turning on intermittently upon startup. For some reason, this also doesn't allow my PanelDue to send commands either. Display works but does not send commands to the main board.

This forces me to need to reinstall the firmware but only after I open up the top case and pull the power in leads to the duet main board. Otherwise, I cannot connect, even if I unplug the external wire to the switch/power supply. It's very tedious and has happened to me 3 times since owning the board.

DuetWifiServer.bin firmware version 2.04

Danal

PanelDue interface is a serial port (UART) that is part of the processor. WiFi interface is SPI. In other words, they are very separate. Both of them not responding is an indicator of a deeper problem.

Power supply ok? Things like that.

gperman

@Danal

The main switch is funky. Sometimes doesn't fully engage and will not fully boot before the system shuts off and I need to rethrow the switch. I can play around with that possibly. What should I look for/test for a bad power supply?

If I need to connect to the main board to install new software, it seems that I can't do it without physically pulling the DC VIN wires into the board. Unplugging the external AC in plug doesn't seem to work. When connecting VIA terminal I get Incoming bluetooth module instead of usbmodem1411

droftarts

@Carlo Sorry, replied thinking you were the OP.

Ian