3.4.0 b3 leaning prints

Adrian52

@t3p3tony have now tried the two cubes without infill, without input shaping, with z hop=0, and with pa=0, and the slope in the - y direction is the same.

jay_s_uk

@adrian52 so its not z hop.
that just adds to the complexity then

CabalSoul

Here is my config and the example gcode. All my prints were printed in vase mode, no Z hop configured for PETG.

AAP_ringing.gcode

AAP_Dynamic_Acceleration_Adjustment.gcode

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

; Delta Settings
 
M665 L440.000:440.000:440.000 R227.102 H449.038 B185.0 X-0.233 Y0.113 Z0.000			 
M666 X-0.220 Y0.388 Z-0.169 A0.00 B0.00	
 

; Network
M550 P"Apex Predator"                     		               	; Set machine name
M552 S1
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
M584 X0 Y1 Z2 E3                                                        ; set drive mapping


;Stepper Configuration
M350 X16   Y16   Z16    E16  I1								; Configure microstepping with interpolation  
M92  X160  Y160  Z160   E679								; Set steps per mm Orbiter greentec E689 @1mm 679 nonlinear
M906 X1800 Y1800 Z1800 E550 I11 							; Set motor currents (mA) and motor idle factor in per cent
M84 S30											; Set idle timeout


;Normal Speed										
M566 X900  Y900  Z900  E1200     	      	   		          		; Set JERK(mm/min)
M201 X6000  Y6000  Z6000  E3600 	   						; Set accelerations (mm/s^2)
M203 X30000 Y30000 Z30000 E15000							; Set maximum speeds (mm/min) 18k is 300mm/s
M204 P3000 T6000									; set Print accel and travel accel


; Axis Limits
M208 Z0 S1                                  				; Set minimum Z


; Endstops
M574 X2 S1 P"xstop"						; configure active-high endstop for high end on X via pin xstop
M574 Y2 S1 P"ystop"                                 		; configure active-high endstop for high end on Y via pin ystop
M574 Z2 S1 P"zstop"                                 		; configure active-high endstop for high end on Z via pin zstop

;Display
M575 P1 S0 B57600


; Z-Probe micro switch
M558 P5 C"^e0stop" H2 F460 T12000 A6                  	  	; Set Z probe type to switch and the dive height + speeds  3 Probe Iterations
G31  P500 X0 Y0 Z20.567		                 				; Set Z probe 
M557 R175 S30	                              				  ; Define mesh grid

;Super PINDA
;M558 P5 C"^exp.e2stop" H2 F460 T9000 A3
;G31  P500 X0 Y-32.750 Z1.775
;M557 R165 S30

;Dial Gauge
;M558 P0
;G31  P500 X0 Y0 Z15
;M557 R165 S30


;Filament Sensor
M591 D0 P2 C"e1_stop" S1														;activate Filament Sensor S0 for deactivating

								

; Bed Heater
M308 S0 A"Ultrabase Pro" P"bedtemp" Y"thermistor" T100000 B4300 C0 R4700		; Set thermistor + ADC parameters for heater 0
M950 H0 C"bedheat" Q250 T0                      			         			; create bed heater output on bedheat and map it to sensor 0
M307 H0 B0 R0.376 C428 D1.14 S1.00 V24.1										; Disable bang-bang mode for the bed heater and set PWM limit
M140 H0 P0																		; Create bed Heater
M143 H0 S125 A0 C0   

; Extruder Heater
M308 S1 A"Mosquito Hybrid" P"e0temp" Y"thermistor" T100000 B4725 C7.06e-8  H0 L0				; Temperature Sensor
;M308 S1 A"Mosquito Hybrid" P"e0temp" Y"thermistor" T4606017 B5848 C5.548428e-8 R4700 H0 L0	    ; blue sensor
M950 H1 C"e0heat" T1                                									    	; create nozzle heater output on e0heat and map it to sensor 1
M143 H1 S280 A0                               											    	; Set temperature limit for heater 1 to 280C
M307 H1 B0 R3.324 C137.4 D5.67 S1.00 V24.3           											; Disable bang-bang mode for the Hotend and set PWM limit
M570 H1 P15 T15 S120																			


;Additional Sensors
M308 S2 A"Chamber" P"e1temp" Y"thermistor" T100000 B4725 C7.06e-8						; define Chmaber temperature sensor
;M308 S10 P"spi.cs6" Y"dht22"       A"Filament Temperature" 					        ; define DHT22 temperature sensor DATA Pin on E3_Stop
;M308 S11 P"S10.1"   Y"dhthumidity" A"Filament Humidity[%]" 					    	; Attach DHT22 humidity sensor to secondary output of temperature sensor
M955 P0 S1000 C"spi.cs3+spi.cs4" 														; Accelerometer


; Hotend Fan
M950 F1 C"fan1" Q100                        	   			;HOTEND FAN create fan 1 on pin fan1 and set its frequency
M106 C"HotendFAN" P1 H1 L1 T45                            	; set fan 1 value. Thermostatic control is turned on

;Part Cooling Fan
M950 F0 C"!fan0+^exp.pb6" Q24000 							;CPAP create fan 0 on pin fan0 and set its frequency !fan2+exp.pb6 Q24000 
M106 C"CPAP" P0 S0 H-1        								; set fan 0 value. Thermostatic control is turned off L0.3 X1 


; Tools
M563 S"NF crazy" 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
T0															; select Tool 0


;Extrusion settings
M207 S2.5 F3600 R0 T2800 Z0 								       ;Retraction
M572 D0 S0.1													;Pressure Advance


;standard settings
M593 P"ei3"  F41.4											;F Resonance Frequency 
;M593 P"daa"  F41.5


M703														;Load filament config
M501														;load config-override

T3P3Tony

@cabalsoul thanks. so I have managed to get a lean on "simpler" boxes printed as @Adrian52 suggested, offset in the +/- Y direction. (using gyroid infil and el3 input shaping)

Has anyone observed sloping in any direction other than -Y ?

CabalSoul

@t3p3tony In my case always -Y.
If i rotate the object it doesn't change anything.

jay_s_uk

@t3p3tony in my case it is also always in -y and happens regardless of position on the build plate

Fred-Y

@t3p3tony It seems that I got one of my prints leaning on both -X and +Y

On this picture it is leaning on the left and also back.

I spent quite some time today trying to reproduce the issue on simple objects like basic cubes, calibration cubes, ringing test with and without infill (rectilinear, gyroid...) but all seems fine.
I guess I changed something on SuperSclicer ... I even checked I was still on the beta3.

T3P3Tony

@fred-y thanks for spending the time in testing this - it helps!

I will test to see if I can get a lean with the two box prints arranged in different orientations then looking for anything on +/-X

Adrian52

With a 20mm cube and a 20x20x10high cube offset in the y direction printed together, the 20mm cube (on the right) looks like this
undefined
The left cube for comparison printed with no y offset. You can see that the lean reduces after 10mm, but interestingly a smaller lean is still seen. Havent tried a 45deg rotated cube yet.

dc42

Thanks to everyone who has helped us to try to track this down. @chrishamm has managed to reduce one of your leaning prints to a pair of 2 moves that leaves one of the carriages 2 microsteps away from the correct position. I expect to be able to track down the problem now.

dc42

@Adrian52 @CabalSoul @DaveA @Fred-Y @jay_s_uk @SIam I have put new firmware builds with a fix for the issue I was eventually able to reproduce at https://www.dropbox.com/sh/kgah0ylh2zu2f7w/AAD2vQOiTQrFly1p22sob6c7a?dl=0. As with all unofficial builds, use them with care.

CabalSoul

@dc42 thank you exactly what I needed. I am going to test right away.
.
.
.

I've tested it and it seems to work. Thanks again.

jay_s_uk

@dc42 one print completed so far and no leaning!
What was it in the end?

Blacksheep99

@jay_s_uk said in 3.4.0 b3 leaning prints:

@dc42 one print completed so far and no leaning!
What was it in the end?

It was the Pisa effect apparently…….

dc42

@jay_s_uk said in 3.4.0 b3 leaning prints:

@dc42 one print completed so far and no leaning!
What was it in the end?

The new code didn't fully allow for the case of a move ending when a tower that had been moving up was on the point of reversing and moving down, but the required final position was one microstep higher than the theoretical highest point reached, because the stepper motor position had been rounded up to the next microstep to get closer to the commanded position for the end or the move.

jay_s_uk

@dc42 thank you!

DaveA

@dc42 Thanks for the fix. I tested with two of my leaning files and they now print correctly.

Fred-Y

@dc42 I just finished to print my test file and it looks good

I have another print to to today, hopefully it will be good as well.

dc42

All, we have identified that the leaning issue on deltas was not completely fixed by that internal build because there was another less common situation in which a step was taken in the wrong direction. I am currently testing a fix for that.