3.4.0 b3 leaning prints

[Fred-Y]

Just did a quick test, same piece printed at .3 and .15mm layer height.
The .15 is leaning more than the .3

It's more obvious than on the picture.

The 2 gcode files are in the zip file below
test-gcode.zip.txt

I hope that's useful to help with the troubleshooting.

[T3P3Tony]

@fred-y thanks. Can you also post your config and any other macros that are related.

[T3P3Tony]

@davea said in 3.4.0 b3 leaning prints:

I printed the same .stl on my old Folgertech cartesian with a Duet Maestro and 3.4 B3 and it printed just fine.

Please share the config.g for both those machines if you can. Trying to pinpoint what is different..

[Fred-Y]

@t3p3tony the config is in the zip file below
Pred-config.zip.txt
It should not have any macros.

Let me know if you would any testing done.

[T3P3Tony]

@fred-y can you try with a simple hollow cube and see if that is reproducible. The complex prints take ages to test.

[CabalSoul]

@t3p3tony

When I’m back home I’ll also post the gcode and configs.
But like Id like to emphasize again that the same gcode produces flawless prints on 3.3 and crooked ones on 3.4b3. And they were all „ hollow cubes“
I’ve even used Cura Arachne and Prusa slicer and I had the same issue with both.

[Adrian52]

@t3p3tony I think it might be related to y direction travel between objects. With two simple 20x20x20 cubes displaced 40mm in the y direction but aligned in the x direction, I get a pronounced (18deg) slope in the - y direction on both cubes . Printing the same two cubes aligned in y but displaced in x seems to give straight sides.

[T3P3Tony]

@cabalsoul yes I understand that. I don't think its the gcode itself that is the issue (or even your config). Just need to be able to replicate the issue in order to help @dc42 work out what's causing it!

[dc42]

@adrian52 the theory I am working on would make it sensitive to the start and end points of the move, the acceleration, the requested top speed, and the input shaping. A cube with infill has a variety of moves with different start and end points, so would make leaning more likely. A hollow cube does the same XY moves over and over again, so you would be less likely to hit a problematic move, but you might hit one if you shift the cube.

Unfortunately, the rod length, delta radius and steps/mm are also likely to affect whether a move is problematic or not.

If you have a simple print that reproduces the problem readily, it would be helpful to me if you can test which of the following changes makes the problem occur or go away:

• Changing acceleration
• Changing requested speed
• If you are using input shaping, turn it off or change the frequency.

[T3P3Tony]

@adrian52 ok thanks. I will try and do the same. are your test cubes hollow or with infil? are you using input shaping?

[Adrian52]

@t3p3tony I used 10% gyroid infill, and ei3 input shaping

[jay_s_uk]

@dc42 I have some more to add to the theory

Both cubes are printed with 3.4b3.
The right hollow cube is printed in vase mode.
The left hollow cube was printed as a single wall. This one had a z hop setting of 1mm
I am currently printing the same gcode with no z hop and it is not exhibiting the same leaning in Y.
here is my config

; Configuration file for Fly-E3-Pro (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.1-LPC+17 on Wed Jun 30 2021 09:24:28 GMT+0100 (British Summer Time)

; General preferences
G90                                            ; send absolute coordinates...
M83                                            ; ...but relative extruder moves
M550 P"Predator"                             ; set printer name
M665 R227 L450 B185 H400                       ; 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
M552 S1                                        ; enable network
M586 P0 S1                                     ; enable HTTP
M586 P1 S0                                     ; disable FTP
M586 P2 S0                                     ; disable Telnet

; Drives
M569 P0 S1                                    ; physical drive 0 goes forwards using TMC2209 driver timings
M569 P1 S1                                     ; physical drive 1 goes forwards using TMC2209 driver timings
M569 P2 S1                                     ; physical drive 2 goes forwards using TMC2209 driver timings
M569 P3 S1                                     ; physical drive 3 goes forwards using TMC2209 driver timings
M584 X0 Y1 Z2 E3                               ; set drive mapping
M350 X16 Y16 Z16 E16 I1                        ; configure microstepping with interpolation
M92 X160.00 Y160.00 Z160.00 E415.00               ; set steps per mm
M566 X500.00 Y500.00 Z500.00 E1000.00       ; set maximum instantaneous speed changes (mm/min) next try 3000
M203 X9000.00 Y9000.00 Z9000.00 E10000.00    ; set maximum speeds (mm/min)
M201 X1000.00 Y1000.00 Z1000.00 E3000.00       ; set accelerations (mm/s^2) next try 6000
M906 X1344 Y1344 Z1344 E560 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 S1 P"e1stop"                           ; configure active-high endstop for high end on X via pin e1stop
M574 Y2 S1 P"pson"                             ; configure active-high endstop for high end on Y via pin pson
M574 Z2 S1 P"e0stop"                           ; configure active-high endstop for high end on Z via pin e0stop

; Z-Probe
M558 P8 C"probe" H5 R0.4 F1200 T6000 A9                ; set Z probe type to switch and the dive height + speeds
G31 P100 X0 Y0 Z-0.1                           ; set Z probe trigger value, offset and trigger height
M557 R180 S20                                  ; define mesh grid

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4092 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"e1heat" T0                           ; create bed heater output on e1heat and map it to sensor 0
M307 H0 B0 S1.00                               ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0                                        ; map heated bed to heater 0
M143 H0 S120                                   ; set temperature limit for heater 0 to 120C
M143 H0 S120                                   ; set temperature limit for heater 0 to 120C
M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C7.060000e-8  ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1                           ; create nozzle heater output on e0heat and map it to sensor 1
M307 H1 B0 S1.00                               ; disable bang-bang mode for heater  and set PWM limit
M143 H1 S280                                   ; set temperature limit for heater 1 to 280C
M308 S2 P"boardtemp" Y"thermistor" T100000 B4092

; Fans
M950 F0 C"fan0" Q500                           ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1                                 ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"fan1" Q500                           ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H1 T45                              ; set fan 1 value. Thermostatic control is turned on

; Tools
M563 P0 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
M207 S4.0 F2400 Z1
M572 D0 S0.4
M955 P0 C"B.1+E.8" I50 

; Miscellaneous
M501
T0                                             ; select first tool

I should add that I am using no form of input shaping but I am using PA

[dc42]

@jay_s_uk that's interesting! Is the Z hop configured using M207 and firmware retraction, or in the slicer?

[jay_s_uk]

@dc42 using M207.
The gcode files are the same.
I changed it to 0 using M207 from the console and checked it to ensure it had changed

[dc42]

@jay_s_uk thanks. Please share the GCode, and I will try it on my delta with Z hop this afternoon.

[jay_s_uk]

@dc42 cube.gcode

[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 ?