Strange x shifting
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Well it's a delta so no real x motor. And it started randomly after one print.
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A few things come to mind,
Does the shift line up with one of the towers? Maybe the motor or wiring is loose/bad on that tower?
Is there any way you added axis comp M556 somewhere in your config or gcode file?
https://duet3d.dozuki.com/Wiki/GCode#Section_M556_Axis_compensation
I'm not a Delta guy myself but it doesn't seem like the direction would be off only in one way if the Delta Calculation was incorrect?
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Have you tried other files? I print alot of the same parts and have separate print files ready for each quantity 1-20 and each file worked fine except the 18 parts file which did this, no idea why to this day but it was only this file.
Otherwise it could be a backlash setting in your config somehow. Or one of the axis is moving farther than the drive thinks it is which I would think with a delta would cause it so gradually drift to one side like that. Recalibrate the steps per mm?
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I agree with some of the other comments. Try rotating the model to see if the problem lines up with a particular axis. also worth checking that axis compensation is not on for some reason ...https://duet3d.dozuki.com/Wiki/Gcode#Section_M556_Axis_compensation
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All good suggestions I'll look into when I get a chance. It dose not align up.with a tower but it dose ling up with true x axis. I have sliced 2 files separate and has done this. I'll have to reprint a older file to.see if it dose it.
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heres my config.g sory i dont know how to put it in a little windown like the others are. i dont see a m556 any were in it
on a side note i printed a test cube that i had sliced before the problem aroused. the problem is still there.the cant is toward the left in the x axis it not angled toward any tower.
would updating the firmware erase my config and network informations?; Configuration file for Duet WiFi (firmware version 1.20 or newer)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool on Mon May 21 2018 14:48:27 GMT-0700 (Pacific Daylight Time); General preferences
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves;*** The homed height is deliberately set too high in the following - you will adjust it during calibration.
M665 R162.78 L400.21 B170 H530 ; Set delta radius, diagonal rod length, printable radius and homed height
M666 X0 Y0 Z0 ; Put your endstop adjustments here, or let auto calibration find them; Network
M550 PBigBen ; Set machine name
M552 S1 ; Enable network
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet; Drives
M569 P0 S1 ; Drive 0 goes forwards
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S0 ; Drive 3 goes forwards
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
M92 X80 Y80 Z80 E2571.42 ; Set steps per mm
M566 X1200 Y1200 Z1200 E40 ; Set maximum instantaneous speed changes (mm/min)
M203 X18000 Y18000 Z18000 E1200 ; Set maximum speeds (mm/min)
M201 X1000 Y1000 Z1000 E120 ; Set accelerations (mm/s^2)
M906 X1000 Y1000 Z1000 E800 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout; Axis Limits
M208 Z0 S1 ; Set minimum Z; Endstops
M574 X2 Y2 Z2 S1 ; Set active high endstops; Z-Probe
M558 P5 R0.4 H5 F1000 T6000 ; Set Z probe type to effector and the dive height + speeds
G31 P100 X0 Y0 Z-0.25 ; Set Z probe trigger value, offset and trigger height
M557 R165 S20 ; Define mesh grid; Heaters
M301 H0 S1.00 P10 I0.1 D200 T0.4 W180 B30 ; Use PID on bed heater (may require further tuning)
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 B4725 C7.06e-8 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S280 ; Set temperature limit for heater 1 to 280C; Fans
M106 P0 S0.0 I0 F2500 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 saving after power loss is not enabled
; Custom settings are not configured
; Miscellaneous
M501 ; Load saved parameters from non-volatile memory
T0 ; Select first tool -
so now im confused. you can see in the pics that the first part that had the problem was bigger then the test cube i just printed. it was a file i sliced a while ago while setting up the printer. the slot is supposed to be straight up not at the angle.
the test block was a file i sliced a while ago. it has the problem for the first half and then it straightens up. it seems to be most pronounced in x and only slightly in y
im confused now.
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definitely seems like a mechanical problem. Check for anything loose or shifted.
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@phaedrux said in Strange x shifting:
definitely seems like a mechanical problem. Check for anything loose or shifted.
+1
Check for a loose belt or pulley.
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It was I had checked it like 3 times but the 4th showed the y axis pulley was loose.
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@bendiesel really glad you found the issue!
