CoreXY configuration…

vbtalent

DC42,

What am I not seeing that is causing my Yaxis to move backwards on my CoreXY? Directionally everything was working fine yesterday in regards to movement as I posted the config.g file earlier in the thread, today it isn't???

[c]; Configuration file for Duet WiFi (firmware version 1.17 to 1.19)
; executed by the firmware on start-up
;

; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool on Tue Nov 14 2017 17:05:20 GMT-0500 (Eastern Standard Time)

; General preferences
M111 S0 ; Debugging off
G21 ; Work in millimetres
G90 ; Send absolute coordinates…
M83 ; ...but relative extruder moves
M555 P1 ; Set firmware compatibility to look like RepRapFirmare

M667 S1 ; Select CoreXY mode
M208 X0 Y0 Z0 S1 ; Set axis minima
M208 X300 Y300 Z320 S0 ; Set axis maxima

; Endstops
M574 X1 Y2 Z1 S0 ; Set active low endstops
M558 P0 X0 Y0 Z0 H5 F120 T6000 ; Set Z probe type to switch, the axes for which it is used and the dive height + speeds
;G31 P600 X0 Y0 Z2.5 ; Set Z probe trigger value, offset and trigger height
;M557 X15:285 Y15:310 S20 ; Define mesh grid

; Drives
M569 P0 S0 ; Drive 0 goes backwards
M569 P1 S0 ; Drive 1 goes backwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards

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 Y500 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

; Heaters
M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S280 ; Set temperature limit for heater 1 to 280C

; 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

; Network
M550 PDuetPrinter ; Set machine name
M552 S1 ; Enable network
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet

; Fans
M106 P0 S0.3 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P2 S1 I0 F500 H1 T45 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Custom settings are not configured

; Miscellaneous
T0 ; Select first tool[/c]

dc42

Have you upgraded the firmware between yesterday and today?

vbtalent

No, I had done that before I started with the configuration.

Does the movement of the axes get controlled from anywhere other than the config.g file, specifically the drive section?

[c]; Drives
M569 P0 S0 ; Drive 0 goes backwards
M569 P1 S0 ; Drive 1 goes backwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards[/c]

deckingman

If it moved correctly yesterday AND you haven't changed anything in config.g, then it would suggest a wiring issue - possible a bad connection or some such. With a CoreXY both motors contribute to X and Y movement so if one motor isn't working properly, you'll get strange results. Suggest you have a look at this and run through the checks https://www.duet3d.com/wiki/Configuring_RepRapFirmware_for_a_CoreXY_printer

vbtalent

So the strange thing is that the only changing things are the files on the micro… the wiring to the board hasn't changed. Maybe I wasn't paying close enough attention to the y axis the other day and to its movement as it seemed to home correctly (homeall.g)??

So, I switched XY servos on the board and now when manually moving the axis through the control panel they now appear to be correct.

vbtalent

Finally figured out that the problem I was having with the homing of the Xaxis was that the end stop switch had become bent and wasn't making contact, out of sight and fun to track down.

VB,