Print not starting in center

dirtytwos

Hey guys,
I am using Duetwifi with a Hyper Cube. My printer is homing x,y,z successfully and the heaters heating up to the printing temp.
It shows that the printing is in progress, but when the print is about to start there is shake and pinch and the belt skips. After a fiew seconds it starts to print. But only at the left rear corner and not in the center. The left rear corner is my homing for X and Y. Endstops on top of the printer.My Z is on the right top.I did the Configuring RepRapFirmware for a CoreXY printer. Every thing was fine after that.The bed is 300 x 300 x 300

; Configuration file for Duet WiFi (firmware version 1.21)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2 on Fri Feb 08 2019 17:55:59 GMT+0100 (Mitteleuropäische Normalzeit)

; General preferences
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves

M667 S1 ; Select CoreXY mode

; Network
M550 P"HyperCubeHMS" ; Set machine name
M552 S1 ; Enable network
;*** Access point is configured manually via M587
M586 P0 S1 ; Enable HTTP
M586 P1 S1 ; Disable FTP
M586 P2 S0 ; Disable Telnet

; Drives
M569 P0 S1 ; Drive 0=X goes forwards
M569 P1 S0 ; Drive 1=Y goes forwards
M569 P2 S0 ; Drive 2=Z goes backwards
M569 P3 S1 ; Drive 3=Extruder goes forwards
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E420.00 ; Set steps per mm
M566 X900.00 Y900.00 Z12.00 E600.00 ; Set maximum instantaneous speed changes (mm/min)
M203 X9000.00 Y9000.00 Z600.00 E6000.00 ; Set maximum speeds (mm/min)
M201 X800.00 Y800.00 Z250.00 E800.00 ; Set accelerations (mm/s^2)
M906 X1000.00 Y1000.00 Z1000.00 E1000.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S120 ; Set idle timeout

; Axis Limits
M208 X-8 Y-28 Z0 S1 ; Set axis minima
M208 X300 Y300 Z300 S0 ; Set axis maxima

; Endstops
M574 X1 Y2 S0 ; Set active high endstops
M574 Z1 S0

; Z-Probe
;M558 P5 H5 F120 T6000 ; Set Z probe type to switch and the dive height + speeds
;G31 P500 X0 Y0 Z0 ; Set Z probe trigger value, offset and trigger height
;M557 X15:195 Y15:195 S20 ; Define mesh grid

; Heaters
M305 P0 T100000 B3950 R4700 ; Set thermistor + ADC parameters for heater 0 BED
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
;M307 H0 B0
M305 P1 T100000 B3950 R4700 ; Set thermistor + ADC parameters for heater 1 Nozzle
M143 H1 S260 ; Set temperature limit for heater 1 to 260C
M307 H1 A611.9 C99.9 D6.0 S0.5 B0

; 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

; 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 S22 R23 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

thanks in advance
Harry

aidar

Looks to me as slicer config problem, not duet config problem. What slicer are you using? Can you post beginning, lets say first 50 lines of sliced gcode file?

Phaedrux

How do you have your slicer configured for your bed?

Where is your 0,0 origin located? It should be the front left corner, regardless of where the print head homes to.

This may help:
https://drmrehorst.blogspot.com/2017/08/setting-up-3d-printers-origin.html

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

Stephen6309

@dirtytwos said in Print not starting in center:

It shows that the printing is in progress, but when the print is about to start there is shake and pinch and the belt skips. After a fiew seconds it starts to print. But only at the left rear corner and not in the center.

You may need to reduce your accelerations for X and Y. On my corexy using makerslide, I have them set to 500. Also, make sure your belts are evenly tensioned.