Large Core Homing issue

mpoly

Hello, I have this little issue.
I have set the homez.g and homeall.g files, for the head to probe the center of the bed for z homing (x250, y250).
It never does, it just goes to x250 y0 and probes there.
Can you please check and let me know what I have done wrong? That also affects the bed compensation i think, its never correct.

I have the files here for your consideration, thank you for all the help.

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v2.1.3 on Tue Dec 10 2019 00:14:51 GMT+0200 (Eastern European Standard Time)
G91 ; relative positioning
G1 H2 Z5 F12000 ; lift Z relative to current position
G1 H1 X-520 Y-520 F4800 ; move quickly to X or Y endstop and stop there (first pass)
G1 H1 X-520 ; home X axis
G1 H1 Y-520 ; home Y axis
G1 X5 Y5 F12000 ; go back a few mm
G1 H1 X-520 F480 ; move slowly to X axis endstop once more (second pass)
G1 H1 Y-520 ; then move slowly to Y axis endstop
G90 ; absolute positioning
G1 H2 X250 Y250 F6000 ; go to first bed probe point and home Z
G30 ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 S2 Z5 F200 ; lift Z relative to current position
;G90 ; absolute positioning

...............................................................................................................................

; homey.g
; called to home the Y axis
;
; generated by RepRapFirmware Configuration Tool v2.1.3 on Tue Dec 10 2019 00:14:51 GMT+0200 (Eastern European Standard Time)
G91 ; relative positioning
G1 H2 Z5 F12000 ; lift Z relative to current position
G1 H1 Y-520 F4800 ; move quickly to Y axis endstop and stop there (first pass)
G1 H2 Y5 F12000 ; go back a few mm
G1 H1 Y-520 F480 ; move slowly to Y axis endstop once more (second pass)
G1 H2 Z-5 F12000 ; lower Z again
G90 ; absolute positioning

..................................................................................................................................................................

; Configuration file for Duet WiFi (firmware version 2.03)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2.1.3 on Tue Dec 10 2019 00:14:51 GMT+0200 (Eastern European Standard Time)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"GIANTCORE" ; set printer name

M667 S1 ; select CoreXY mode

; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P1 S1 ; physical drive 1 goes forwards
M569 P0 S1 ; physical drive 0 goes forwards
M569 P2 S0 ; physical drive 2 goes backwards
M569 P3 S0 ; physical drive 3 goes forwards
M569 P4 S1 ; physical drive 4 goes forwards
M584 X1 Y0 Z2 E3:4 ; set drive mapping
M350 X16 Y16 Z16 E16:16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E100.65:100.65 ; set steps per mm
M566 X1500.00 Y1500.00 Z800.00 E10000.00:10000.00 ; set maximum instantaneous speed changes (mm/min)
M203 X48000.00 Y48000.00 Z3200.00 E18000.00:10000.00 ; set maximum speeds (mm/min)
M201 X3000.00 Y3000.00 Z500.00 E10000.00:10000.00 ; set accelerations (mm/s^2)
M204 P500 T4000
M906 X1900 Y1900 Z2000 E1800:1800 I20 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X-16 Y-37 Z0 S1 ; set axis minima
M208 X507 Y477 Z517 ; set axis maxima

; Endstops
M574 X1 Y1 S0 ; set active low and disabled endstops
M574 Z1 S2 ; set endstops controlled by probe

; Z-Probe
M307 H7 A-1 C-1 D-1 ; disable heater on PWM channel for BLTouch
M558 P9 H3 F240 T8000 X0 Y0 Z1 ; set Z probe type to bltouch and the dive height + speeds
G31 P25 X-46 Y-4.6 Z1.21 ; set Z probe trigger value, offset and trigger height
M557 X20:460 Y50:425 S30 ; define mesh grid

; Heaters
M140 H-1 ; disable heated bed
M305 P1 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 1
M143 H1 S280 ; set temperature limit for heater 1 to 280C
M307 H1 A250.9 C92.9 D10.4 V24 B0 S1 ; PID tuning parameters (gain, tc, dt, volt.PWm)

; Fans
; set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P2 S0 I0 F500 H-1

; Tools
M563 P0 S"E1" D0 H1 F0 ; 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
M563 P1 S"E2" D1 H1 F0 ; define tool 1
G10 P1 X0 Y0 Z0 ; set tool 1 axis offsets
G10 P1 R0 S0 ; set initial tool 1 active and standby temperatures to 0C

; Custom settings are not defined

; Miscellaneous
M501 ; load saved parameters from non-volatile memory
M911 S23.5 R24 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
T0 ; select first tool

droftarts

What firmware version are you actually running? Send M115 and post the response.

Your homeall.g looks very similar to that created by the configuration tool. However, I'm not sure that this move needs to be an H2 move:
G1 H2 X250 Y250 F6000
Try removing the H2.

Also, can your X and Y axis really do 48000mm/min (800mm/sec)?!
M203 X48000.00 Y48000.00 Z3200.00 E18000.00:10000.00 ; set maximum speeds (mm/min)

Ian

deckingman

@droftarts That's correct. On a CoreXY, an H2 move will normally only use one motor so H2 Xnn Ynn might do strange things. Once homed, any G1 move within axis limits should work so I agree that removing the H2 parameter ought to fix it.

droftarts

@deckingman looks like the configuration tool is wrong, then. I’ll report it to @chrishamm.

Ian

deckingman

@droftarts Not sure but I think G1 H2 Xnn will give +X +Y and G1 H2 Ynn will give +X -Y. So G1 H2 Xnn Ynn will give (+X+Y)+(+X-Y) = +X only (the +Y and -Y cancel each other out). Not 100% sure but I think that's what happens.

Veti

@droftarts
it was reported and fixed
https://github.com/chrishamm/configtool/issues/18

b0ssman created this issue in chrishamm/configtool

closed Incorrect Homing Scripts for CoreXY and Delta #18

droftarts

@Veti said in Large Core Homing issue:

@droftarts
it was reported and fixed
https://github.com/chrishamm/configtool/issues/18

Different issue. Tested on current RRF configuration tool 2.1.4, it puts in:

G90                     ; absolute positioning
G1 H2 X15 Y15 F6000     ; go to first bed probe point and home Z
G30                     ; home Z by probing the bed

Reported here: https://github.com/chrishamm/configtool/issues/19

Ian

droftarts created this issue in chrishamm/configtool

Large Core Homing issue

closed Incorrect Homing Scripts for CoreXY and Delta #18

closed Incorrect homing scripts: H2 X and Y move #19