Ender 3 RRF v1.1 setting up BLtouch

Gixxerfast

@re_tour No problems, happy to help out when I can

re_tour

@gixxerfast I'm bosting everythin here so that it won't get lost somehow and I can better check it tomorrow Maybe someone can find it helpful as well
homez.g:

; homez.g
; called to home the Z axis

; do nothing if XY is not homed yet
if !move.axes[0].homed || !move.axes[1].homed
    echo "XY are not homed yet. Aborting"
    abort
;end if

G91
G1 H2 Z5 F6000

G90
G1 X117.5 Y117.5 F6000

G30 K0 Z-99999						    ; Probe the Z pin at the back

G1 Z10 F9000

homex.g:

; homex.g
; called to home the X axis
;
G91

if !move.axes[1].homed
	; raise Z a bit
	G1 H2 Z5 

G1 H2 Z5 F6000    ; lift Z relative to current position
G1 H1 X-240 F3000 ; move quickly to X axis endstop and stop there (first pass)
G1 H2 X5 F6000    ; go back a few mm
G1 H1 X-240 F240  ; move slowly to X axis endstop once more (second pass)
G90               ; absolute positioning

homey.g:

; homey.g
; called to home the Y axis
;
G91
 
if !move.axes[0].homed
	; raise Z a bit
	G1 H2 Z5 
	
G1 H1 Y-240 F3000 ; move quickly to Y axis endstop and stop there (first pass)
G1 H2 Y5 F6000    ; go back a few mm
G1 H1 Y-240 F240  ; move slowly to Y axis endstop once more (second pass)
G90               ; absolute positioning

homeall.g:

; homeall.g
; called to home all axes
;
M98 P"/sys/homex.g"
M98 P"/sys/homey.g"
M98 P"/sys/homez.g"

config.g:

; Configuration file for SKR-RFF-E3-v1.1 (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.1-LPC-STM32+2 on Tue Dec 28 2021 01:07:55 GMT+0100 (közép-európai téli idő)

; General preferences
G90                                            ; send absolute coordinates...
M83                                            ; ...but relative extruder moves
M550 P"Ender3"                                 ; set printer name

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

; Drives
M569 P0 S0                                     ; physical drive 0 goes backwards using TMC2209 driver timings
M569 P1 S0                                     ; physical drive 1 goes backwards 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 X80.00 Y80.00 Z400.00 E93.00               ; set steps per mm
M566 X1200.00 Y1200.00 Z60.00 E360.00          ; set maximum instantaneous speed changes (mm/min)
M203 X9000.00 Y9000.00 Z1800.00 E6000.00       ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z100.00 E5000.00          ; set accelerations (mm/s^2)
M906 X1000 Y1000 Z1000 E1000 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 X235 Y235 Z260 S0                         ; set axis maxima

; Endstops
M574 X1 S1 P"xstop"                            ; configure switch-type (e.g. microswitch) endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop"                            ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop

; Z-Probe
M950 S0 C"servo0"                              ; create servo pin 0 for BLTouch
M558 P9 C"^probe" H5 F300:120 A3 T6000         ; set Z probe type to bltouch and the dive height + speeds,the F300:120 first speed 300 second 120
G31 P500 X-45 Y-7 Z3.55                      ; set Z probe trigger value, offset and trigger height
M557 X30:190 Y30:190 P5                       ; define mesh grid

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4092 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bed" T0                              ; create bed heater output on bed and map it to sensor 0
M307 H0 B0 R0.365 C296.6 D3.97 S1.00 V24.0                               ; 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 B4092  ; 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 R2.845 C121.4:119.4 D5.71 S1.00 V24.0                               ; disable bang-bang mode for heater  and set PWM limit
M143 H1 S245                                   ; set temperature limit for heater 1 to 245C

; Fans
M950 F0 C"fan0" Q500                           ; create fan 0 on pin fan0 and set its frequency
M106 P0 C"Part Cooling Fan" S0 H-1             ; set fan 0 name and value. Thermostatic control is turned off
M950 F1 C"fan1" Q500                           ; create fan 1 on pin fan1 and set its frequency
M106 P1 C"Hotend Fan" S0.01 H1 T45             ; set fan 1 name and 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

M918 P1 E4 E1000000

bed.g:

; bed.g
; called to perform automatic bed compensation via G32
;
; generated by RepRapFirmware Configuration Tool v3.3.1-LPC-STM32+2 on Tue Dec 28 2021 01:07:55 GMT+0100 (közép-európai téli idő)
M561 ; clear any bed transform
G29  ; probe the bed and enable compensation

mesh.g:

if !move.axes[0].homed || !move.axes[1].homed || !move.axes[2].homed
 G28
M290 R0 S0    ;  clear baby stepping

G29 S2
 
; move to the center of the mesh with the PROBE (mind affset in Y is 25 above noozle)
G90
var xoffset = -45
var yoffset = -7
var xpos = {117.5 - var.xoffset}
var ypos = {117.5 - var.yoffset}
 
G1 X{var.xpos} Y{var.ypos} Z15 F6000
 
echo "Setting Probe Offset now"
G30 K0
G1 Z15 F3000
G29 S0

re_tour

@gixxerfast Hey there! So today I've tried the mesh and it works! This is what I see after running it:
3dc79a59-05f3-40c1-8ebe-e15e64d77d03-kép.png
So now all is left is to slice the things I want in Cura and upload the gcode which I get?

re_tour

So I started the print, and the filament started to go in the opposite direction. I haven't the slightest clue why.

Gixxerfast

@re_tour Hi there, reverse the extruder motor

M569 P3 S0

re_tour

@gixxerfast said in Ender 3 RRF v1.1 setting up BLtouch:

M569 P3 S0

Thank you so much. Do I have to reverse it every time I turn the printer on or was it just an initial setting mistake I didn't pay attention to?

Gixxerfast

@re_tour No, just change it once in config.g and it wasn't a mistake. Really hard to know how the wires are supposed to be, just as long as the pairs are correct it's good. Many has to adjust that AFAIK.

re_tour

@gixxerfast Thank you very much!

re_tour

@gixxerfast So I didn't input that change into the config.g yet, but wrote it into the console. Printed 2 things, the strange thing is that at the end of each print the mechanism pulls the filament all the way out. Why could that be?

Gixxerfast

@re_tour You must have something wonky in your slicer. Check if there some custom end print gcode in Cura (it was Cura you were using, right?)

re_tour

@gixxerfast Yes sir, let me check.

re_tour

@gixxerfast This is the last few lines of the first gcode:

;TIME_ELAPSED:2311.874865
G1 F2700 E788.98313
M140 S0
M107
G91 ;Relative positioning
G1 E-2 F2700 ;Retract a bit
G1 E-2 Z0.2 F2400 ;Retract and raise Z
G1 X5 Y5 F3000 ;Wipe out
G1 Z10 ;Raise Z more
G90 ;Absolute positioning

G1 X0 Y235 ;Present print
M106 S0 ;Turn-off fan
M104 S0 ;Turn-off hotend
M140 S0 ;Turn-off bed

M84 X Y E ;Disable all steppers but Z

M82 ;absolute extrusion mode
M104 S0
;End of Gcode

and the end of the second gcode:

;TIME_ELAPSED:10192.122505
G1 F2700 E523.83295
M140 S0
M107
G91 ;Relative positioning
G1 E-2 F2700 ;Retract a bit
G1 E-2 Z0.2 F2400 ;Retract and raise Z
G1 X5 Y5 F3000 ;Wipe out
G1 Z10 ;Raise Z more
G90 ;Absolute positioning

G1 X0 Y235 ;Present print
M106 S0 ;Turn-off fan
M104 S0 ;Turn-off hotend
M140 S0 ;Turn-off bed

M84 X Y E ;Disable all steppers but Z

M82 ;absolute extrusion mode
M104 S0
;End of Gcode

Gixxerfast

@re_tour said in Ender 3 RRF v1.1 setting up BLtouch:

G1 E-2 F2700 ;Retract a bit G1 E-2 Z0.2 F2400 ;Retract and raise Z

I really don't have a clue. I'm just guessing but...

Try to find where these are inserted

And comment them out /remove them.

See if it makes any difference.

re_tour

@gixxerfast You were right, G1 E-2 F2700 pulls the filament nearly all the way out. Thank you (once again)

Gixxerfast

@re_tour That's great!
Happy printing!

I think you might have to revisit the offset configuration. The mesh looked a bit shifted. But that's for another day

and as long as it prints and you get the first layer right, it works