2nd Printer, same issue with steppers only going diagonal

interwebsdesigner

I am building my second CoreXY printer. Oddly I am running into the same problem with the steppers I initially had on the first.

When I run G1 X10 F3000 S2 the carriage goes diagonal. When I run G1 X10 Y10 F3000 S2 it moves correctly. I have looked and changed stepper wires, the firmware and for the life of me can't get them to move normally. I feel like it's me.

I assumed it was an wiring issue, but both work when both are explicitly called in G1. Changed connectors, tested on the z, everything seems normal. Any thoughts?

; Machine configuration
M569 P0 S0 ; Drive 0 goes forwards (change to S0 to reverse it)
M569 P1 S1 ; Drive 1 goes forwards.
M569 P2 S0 ; Z - Motors - Forwards
M569 P3 S1 ; Drive 3 goes forwards 0
M569 P4 S1 ; Drive 4 goes forwards

timothyz

I'm guessing you are missing the following in your config file:

M667 S1 ; Select CoreXY mode

Unless you already have that in your configuration, then I have no idea.

Did you use the configuration tool? RRF Configuration Tool
-Tim

interwebsdesigner

I do have CoreXY mode set. I have this same firmware on my first printer (both DBots) and works fine. Originally I did use the tool yes.

It's just odd that both work, just not when they are supposed to. Rewired this thing 3 times too just in case it was a bad connection, but if it was it wouldn't turn at all...

Phaedrux

If you compare the configs of both printers what is different?

Are you sure the motors are wired properly at the connector?

https://duet3d.dozuki.com/Wiki/Choosing_and_connecting_stepper_motors

And once you have verified that check movement again.

https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCoreXYPrinter#Section_Movement_section

Maybe post your config as well?

dc42

Have you tested both motors individually using G1 S2 moves? It sounds to me that perhaps only one of the X and Y motors is working.

interwebsdesigner

@phaedrux Thanks for the docs, couldn't find them before.

Went through guide and made settings match:

When running X test getting +X +Y Movement
When running Y test getting +X - Y Movement

I have my endstops set up and have verified through properties proper function.

Now when I try to run home all (with es on X-LowEnd and Y-HighEnd) It goes the opposite direction on Y (X goes in the right direction) and the motors are loud. Not sure why, if the above is fine then the homing doesn't work as expected. Bit confused here. I have tried flipping motor connections, turning them around and changing the firmware. Thoughts?

Motor Set Up (If Facing Printer)

Left Motor plugged into X
Right Motor plugged into Y

Homing File:

;homeall.g
;homing using a x-MIN, Y-MAX and z-MIN endstops

G91 ; relative mode
G1 S1 X-240 Y240 F3000 ; course home X or Y
G1 S1 X-240 ; course home X
G1 S1 Y240 ; course home Y
G1 X4 Y-4 F600 ; move away from the endstops
G1 S1 X-10 ; fine home X
G1 S1 Y10 ; fine home Y

Config.g

; CoreXY sample config file for dc42 Duet firmware by Haga. Please use with care. Some of the settings needs to be changed to work with your printer. Read the duetWiki!
;*** https://duet3d.com/wiki/Duet_Wifi_Wiki

; Communication and general
M111 S0 ; Debug off
M550 BigBot ; Machine name (P + anything you like)
M551 Preprap ; Machine password (used for FTP connections)
M540 P0xBE:0xEF:0xDE:0xAD:0xFE:0xED ; MAC Address - If you have more than one Duet on your network, they must all have different MAC addresses, so change the last digits
M552 S1 ; Enable WiFi
M555 P2 ; Set output to look like Marlin
M575 P1 B57600 S1 ; Comms parameters for PanelDue
M667 S2 Z3 ; set CoreXY mode

; Machine configuration
M569 P0 S0 ; X Drive 0 goes forwards (change to S0 to reverse it)
M569 P1 S1 ; Y Drive 1 goes forwards.
M569 P2 S0 ; ZaZb - Motors - Forwards
M569 P3 S1 ; E0 Drive 3 goes forwards 0
M569 P4 S1 ; E1 Drive 4 goes forwards

M574 Z1 Y2 S0 ; set endstop configuration (all endstops at high end, active high)
M574 X1 S0 ; set endstop configuration

M350 X16 Y16 Z16 E16 I1 ; Set 16x microstepping with interpolation

M92 X100 Y100 Z400 ; Set axis steps/mm. Check that the printer really move as much as you tell it. Not more and not less.
M92 E138.4:138.4 ; Set extruder steps/mm. Change this to match your extruder.

M906 X800 Y800 Z800 E800 ; Set motor currents (mA). Increase if motor is to weak. Lower if motor gets too hot. 800-1000 is good for most.

M201 X1500 Y1500 Z300 E500 ; Accelerations (mm/s^2). The acceleration, speed and jerk is a setting you can alter to try making the printer to print as nice as possible..
M203 X12000 Y12000 Z1200 E800 ; Maximum speeds (mm/min)
M566 X900 Y900 Z24 E800 ; Maximum jerk speeds mm/minute

M208 X300 Y300 Z450 ; set axis maxima (adjust to suit your machine)
M208 X0 Y0 Z0 S1 ; set axis minima (adjust to make X=0 and Y=0 the edges of the bed)

G21 ; Work in millimetres
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves

; Z probe
;M558 P1 I0 R0.2 F500 X0 Y0 Z1 ; Analog Z probe, also used for homing the Z axis
;G31 X0 Y0 Z0.0 P700 ; Set the probe height and threshold (put your own values here)

; Thermistors and heaters

;*** You can use S and B parameters to define the parameters of the thermistors you are using. Standard 100k thermistor from E3d is 4388 or 4725.
M305 P0 T100000 B4388 R4700 H0 L0 ; Put your own H and/or L values here to set the bed thermistor ADC correction
M305 P1 T100000 B4388 R4700 H0 L0 ; Put your own H and/or L values here to set the first nozzle thermistor ADC correction
;M305 P2 T100000 B4388 R4700 H0 L0 ; Put your own H and/or L values here to set the second nozzle thermistor ADC correction

;***Choose if you want to use the M301 or the autotune results and M307 command. Don't use both.
;M301 H1 P10 I0.10 D100 T0.50 S1.0 ;PID settings for extruder 0 (no need for M301 if using M307)
;M301 H2 P10 I0.10 D100 T0.50 S1.0 ;PID settings for extruder 1

M570 S120 ;Increase to allow extra heating time if needed

;*** Bed Heating Controls & Max Tem
M143 H0 S140

;***Use for autotune. Comment out M301 if you do.
M307 H0 A142 C293.5 D5.4 B0 ;Autotune result for bed
;M307 H1 A588.5 C242.9 D6.7 B0 ;Autotuen result for first nozzle

; Fans
M106 P1 T45 H1 ; enable thermostatic mode for fan 1 at temp 45 degrees. Fan turns on when P1(extruder 1) is above 45 degrees.

; Tool definition
M563 P1 D0 H1 ; Define tool 0
G10 P1 S0 R0 ; Set tool 0 operating and standby temperatures

;*** If you have a dual-nozzle build, un-comment the following 3 lines
;M563 P0 D1 H2 ; Define tool 1
;G10 P0 S0 R0 ; Set tool 1 operating and standby temperatures

;*** If you are using axis compensation, put the figures in the following command
M556 S78 X0 Y0 Z0 ; Axis compensation here
M208 S1 Z0 ; set minimum Z
M501 ; Load Config-Override.g that is created using M500
T0 ; select first hot end

Phaedrux

What firmware version are you using? Because the expected Y motor behaviour is different between 1.18 and older and 1.19 and newer.

test the Y motor by sending from the console:

G91
G1 S2 Y10 F3000
For firmware 1.19 and later: If the head moves diagonally in the +X and -Y directions, all is well. If it moves in the -X and +Y directions, change the S parameter in the M569 P1 command to S1.

For firmware 1.18 and earlier: If the head moves diagonally in the -X and +Y directions, all is well. If it moves in the +X and -Y directions, change the S parameter in the M569 P1 command to S1.

Also can you verify that you have a right handed coordinate system? with the origin 0,0 in the front left corner? Y moves in + towards the back of the printer towards the endstop?

JoergS5

@interwebsdesigner said in 2nd Printer, same issue with steppers only going diagonal:

M667 S2 Z3 ; set CoreXY mode

Are you sure you have an XZ printer?

Phaedrux

@joergs5 Good catch!

interwebsdesigner

@phaedrux 1.21 is the version. And yes, 0,0 should be at the front left corner. I have my first build which this is identical to also and works appropriately.

interwebsdesigner

@joergs5 good catch indeed. That was it. Silly mistake when going through the docs sent above. Everything is working as expected. Maybe by the 3rd one I won't have trouble Thanks guys.

JoergS5

@interwebsdesigner The mistake was not easy to detect, because the comment said XY.

Nice that so many people use CoreXY.

fcwilt

@interwebsdesigner said in 2nd Printer, same issue with steppers only going diagonal:

@joergs5 good catch indeed. That was it. Silly mistake when going through the docs sent above. Everything is working as expected. Maybe by the 3rd one I won't have trouble Thanks guys.

What was it?

I wasn't able to follow the back and forth.

Thanks.

Frederick

Phaedrux

@fcwilt it was set to core XZ mode instead of core XY

fcwilt

@phaedrux said in 2nd Printer, same issue with steppers only going diagonal:

@fcwilt it was set to core XZ mode instead of core XY

Thank you.

What is a Core XZ printer? I cannot visualize how that would work. Any videos or pictures of such a printer?

Frederick

Phaedrux

@fcwilt https://m.youtube.com/watch?v=aPxX8slszdE

https://reprap.org/forum/read.php?2,377858

Interesting machine

fcwilt

@phaedrux said in 2nd Printer, same issue with steppers only going diagonal:

@fcwilt https://m.youtube.com/watch?v=aPxX8slszdE

https://reprap.org/forum/read.php?2,377858

Interesting machine

Thanks very much.

Frederick