@Phaedrux
I think these like pretty good.

"What's the smallest Z step your printer can do?" To be honest I am not sure! they are just stock ender 3 stepper Moters. If it is something mechanical, I am not sure how it is consistent enough to travel up the side of the part like that.

@DIY-O-Sphere I did not even realize I had bang bang on the bed! That would fit with the idea that the layer time effects it. I printed that gear in vase mode, and it was very good. I also tried a Prusa slicer, no change.

@mikeabuilder
If forgot to say it only happens on larger models so I think the z axes can be ruled out.
I use cura so maybe i should try Prusa slicer. Thanks for your ideas!

@Phaedrux
It is a bmg with Bowden.

Do you guys have any idea what is causing theses lines. they seem to travel diagonal on the y axes and then leave a small level layer shift only on the x axes. It is on a modded ender 3 with duet 5 mini.
I am not sure whether to blame hardware or software.

; Configuration file for Duet 3 Mini 5+ (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.13 on Wed Oct 12 2022 17:23:19 GMT-0500 (Central Daylight Time)

; General preferences
G90                                                ; send absolute coordinates...
M83                                                ; ...but relative extruder moves
M550 P"Ender 3 Ultra"                              ; set printer name
M918 P1 E4 F2000000                                ; configure direct-connect display

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

; Drives
M569 P0.0 S1                                      ; physical drive 0.0 goes backwards
M569 P0.1 S0                                       ; physical drive 0.1 goes backwards
M569 P0.2 S0                                       ; physical drive 0.2 goes backwards
M569 P0.3 S0                                       ; physical drive 0.3 goes b
M569 P0.4 S0                                       ; physical drive 0.4 goes backwards
M671 X-50:270 Y0:0 S10                             ; define dual driven z-axis 
M584 X0.4 Y0.1 Z0.0:0.2 E0.3                           ; set drive mapping
M350 X16 Y16 Z16 E16 I1                            ; configure microstepping with interpolation
M92 X80.6755 Y80.00 Z400 E406.86275           ; set steps per mm
M566 X400 Y400 Z60.00 E300.00                ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z600.00 E3600.00            ; set maximum speeds (mm/min)
M201 X500 Y500 Z200.00 E500           ; set accelerations (mm/s^2)
M906 X1300 Y1400 Z700 E900 I30                      ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                            ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1                                   ; set axis minima
M208 X205 Y220 Z260 S0   ; set axis maxima
M206 X0 Y20 Z0
; Endstops
M574 X1 S1 P"io5.in"                               ; configure switch-type (e.g. microswitch) endstop for low end on X via pin io5.in
M574 Y1 S1 P"io6.in"                               ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin io6.in
M574 Z1 S2                                         ; configure Z-probe endstop for low end on Z

; Z-Probe
M950 S0 C"io3.out" ; create servo pin 0 for BLTouch
M558 P9 C"io3.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X0 Y-20.701 Z3.895 ; set Z probe trigger value, offset and trigger height
M556 S50 X0 Y0 Z0 ; set orthogonal axis compensation parameters
M557 X10:200 Y10:210 s60:60 ; define me

; Heaters
M308 S0 P"temp0" Y"thermistor" T100000 B4092       ; configure sensor 0 as thermistor on pin temp0
M950 H0 C"out0" T0                                 ; create bed heater output on out0 and map it to sensor 0
M307 H0 B1 S1.00                                   ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0                                            ; map heated bed to heater 0
M143 H0 S180                                       ; set temperature limit for heater 0 to 180C
M308 S1 P"temp1" Y"pt1000"                         ; configure sensor 1 as PT1000 on pin temp1
M950 H1 C"out1" T1                                 ; create nozzle heater output on out1 and map it to sensor 1
M307 H1 B0 S1.00                                   ; disable bang-bang mode for heater  and set PWM limit
M143 H1 S450                                       ; set temperature limit for heater 1 to 450C
M308 S2 P"temp2" Y"thermistor" T100000 B4092       ; configure sensor 2 as thermistor on pin temp2
M950 H2 C"out2" T2                                 ; create chamber heater output on out2 and map it to sensor 2
M307 H2 B1 S50                                   ; enable bang-bang mode for the chamber heater and set PWM limit
M141 H2                                            ; map chamber to heater 2
M143 H2 S100                                       ; set temperature limit for heater 2 to 100C

; Fans
M950 F0 C"out3" Q150                               ; create fan 0 on pin out3 and set its frequency
M106 P0 C"part fan " S0 H-1                        ; set fan 0 name and value. Thermostatic control is turned off
M950 F1 C"out4" Q500                               ; create fan 1 on pin out4 and set its frequency
M106 P1 C"hotend fan" S1 H1:2:0 T45                ; set fan 1 name and value. Thermostatic control is turned on
M950 F2 C"out5" Q500                               ; create fan 2 on pin out5 and set its frequency
M106 P2 C"mother bourd" S1 H1:2:0 T45              ; set fan 2 name and value. Thermostatic control is turned on

; Tools
M563 P0 S"Copperhead" 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

; Custom settings are not defined

; Miscellaneous
M501                                               ; load saved parameters from non-volatile memory
M911 S22 R23 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

M955 P0 C"spi.cs2+spi.cs1" ; all wires connected to temp DB connector, no temperature daughterboard
M572 D0 S.6

M556 S100 X-0.2 ;skew adjust
;M593 P"EI3" F40 ; use ZVD input shaping to cancel ringing at 40.5Hz
M376 H10
M304 P32.8 I.706 D111.9
M575 P1 S1 B57600;screen code

@T3P3Tony Ok, Thank you!

all right I did figure out this problem finally. the deploy probe file was messed up, I'm not sure how it slowly got worse and worse but is now working! I do have one more question however, I am geting this error and I do not know what's wrong does anyone here have answer?
thank you for your help!

@Phaedrux Yes I get 9.9 kΏ.

I don't know what that chip is though.
Does my config look fine?