Pruset RevoBearmera MK3S+ - Specs and Configuration

Ofn13

Hello fellow 3D Printing friends,

I'm sharing with you my printer specs and configuration file.
My goal is to receive feedback on how to improve my settings and printer and at the same time to help others that may have a similar printer.

One year ago I decided to build my own printer based on Prusa MK3S and in the Bear Frame project by Grégoire Saunier.

Here is a picture of the Printer:

Here are the specs:

Bear Frame 2.1 by Grégoire Saunier - Kit by RatRig
Misumi Linear Bearings (8x LMU8)
Misumi PSFJ8 Rods for X (2x 370mm), Y (2x 330mm) and Z (2x 320mm)
Magnetic heatbed MK52 24V
Double-sized Pei Textured Powder Thekkiinngg v4
LDO 1.8º Hybrid Stepper Motor (42STH47-2504AC) for X and Y
LDO 1.8º Stepper motor with TR8 Leadscrews (2x 42STH34-1004L321E) for Z
PSU: Mean Well RSP-500-24
RevoHemera with Bear X (Bearmera by Grégoire Saunier)
SuperPINDA
Duet 3 Mini 5+ V1.0 WIFI - Standalone

Parts printed using FilamentPM PETG.

Here is the config.g:

; General preferences
G90                                         ; Send absolute coordinates...
M83                                         ; ...but relative extruder moves
 
; Network
M550 P"Pruset RevoBearmera MK3S+"                        ; Set machine name
M552 S1                                     ; Enable network
;M552 S2                                     ; Enable AP
;*** Access point is configured manually via M587
M586 P0 S1                                  ; Enable HTTP
M586 P1 S0                                  ; Disable FTP
M586 P2 S0                                  ; Disable Telnet
;M575 P1 S1 B57600							; Panel Due
 
; Drive Mappings
M569 P0.0 S1 D3 V20                              ; Drive 0 goes forwards: z Axis
M569 P0.1 S1 D3 V20                            ; Drive 1 goes backwards: z1 Axis
M569 P0.2 S0 D3 V20                            ; Drive 2 goes backwards: x Axis
M569 P0.3 S1 D3 V20                           ; Drive 3 goes forwards: y Axis
M569 P0.4 S1 D3 V20                          ; Drive 4 goes backwards: E Axis 

; Motor remapping for dual Z and axis Limits
M584 X0.2 Y0.3 Z0.1:0.0 E0.4  	; two Z motors connected to driver outputs Z and E1

 
; Micropstepping and Speed
M350 X16 Y16 Z16 E16 I1                     ; Configure microstepping with interpolation
M92 X100.00 Y100.00 Z400.00:400.00 E397.00         ; Set steps per mm
 
; Speeds, Acceleration and Jerk
;M566 X840.00 Y840.00 Z24.00:24.00 E120.00 P1      ;set maximum instantaneous speed changes (Jerk) (mm/min)
M566 X480.00 Y480.00 Z24.00:24.00 E300.00 P1      ;set maximum instantaneous speed changes (Jerk) (mm/min)
M203 X12000 Y12000 Z720:720 E1200           ; Set maximum speeds (mm/min)
M201 X2500 Y2500 Z200 E1500                 ; Set accelerations (mm/s^2)
M204 P1200.0 T1200.0   						 ; set print and travel accelerations (mm(s^2)
 
; Motor currents
M906 X1000.00 Y1000.00 Z500.00:500.00 E1000.00 I10    ; Set motor currents (mA) and motor idle factor in percent
M84 S30                                     ; Set idle timeout
 
; Printer geometry
M208 X-14:240 Y-6:210 Z-0.2:200  ; X carriage moves from 0 to 250, Y bed goes from 0 to 210
M564 H0							; allow unhomed movement
 
; Endstops for each Axis
M574 X1 S3								 ; Set endstops controlled by motor load detection
M574 Y1 S3                               ; Set endstops controlled by motor load detection
 
; Stallgaurd Sensitivy
M915 X S0 F0 H200 R0		                ; Set X axis Sensitivity
M915 Y S0 F0 H290 R0		                ; Set y axis Sensitivity
 
; Z-Probe Super PINDA
M574 Z1 S2 ; Set endstops controlled by probe
M558 P5 C"^io3.in" I1 H1 F120 T6000 A20 S0.005 ; PINDA
 
; Probing Mesh Grid and Sheets
M557 X22:240 Y14:210 P8                     ; Define mesh grid for probing
;G31 P1000 X23 Y5 Z1.570 	                 ; Textured
G31 P1000 X36 Y20 Z1.690 					; PEI

M671 X-14:240 Y105:105 S10			; leadscrews at left (connected to Z) and right (connected to E1) of X axis

; Heatbed Heaters and Thermistor Bed 
M308 S0 P"temp0" Y"thermistor" T100000 A"MK52" B4138 C7.060000e-8 ; Set thermistor + ADC parameters for heater 0 Bed
M950 H0 C"out0" Q25 T0						; Creates Bed Heater
M307 H0 R0.559 K0.349:0.000 D10.70 E1.35 S1.00 B0
;M301 H0 P21.42 I1.21 D251.89 T0
M140 H0										; Bed uses Heater 0
M143 H0 S120                                ; Set temperature limit for heater 0 to 120C Bed
 
 
; HotEnd Heaters and Thermistor HotEnd      
M308 S1 P"temp1" Y"thermistor" T100000  A"Hemera" B4725 C7.060000e-8  ;define E0 temperature sensor e3d
M950 H1 C"out1" T1					; Create HotEnd Heater
M307 H1 R4.505 K1.213:0.000 D1.69 E1.35 S1.00 B0 V24.4		; Hotend PID Calibration and PWM
M143 H1 S300                            ; Set temperature limit for heater 1 to 285C HotEnd
M302 S185 R185

 
 
; Fans
M950 F1 C"out5" Q250				; Creates HOTEND Fan
M106 P1 T45 S255 H1                 ; HOTEND Fan Settings
M950 F0 C"out6" Q250                         						; create fan 0 on pin out3 and set its frequency
M106 P0 S0 H-1  
 
; 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

;Pressure Advance
M572 D0.4 S0.05

Here is the homeall.g

; 0:/sys/homeall.g
; Home X, Y, and Z axis
M400
M913 X50 Y50 ; drop motor current to 70%
M400 G91; relative positioning

G91                                                        ; Set relative positioning.
G1 Z3 F800 H2                                              ; Lift the Z axis 3mm.

; HOME X
G1 H2 X5 F1000                                             ; Move slowly away. 
G1 H1 X-255 F6000                                          ; Move quickly to the X endstop. 
G1 H2 X5 F1000                                             ; Move slowly away. 
G1 H1 X-255 F3000                                          ; Move quickly to the X endstop, a second check. 
;G1 H2 X5 F1000                                             ; Move slowly away. 

; HOME Y
G1 H2 Y5 F1000                                             ; Move slowly away. 
G1 H1 Y-215 F6000                                          ; Move quickly to the Y endstop. 
G1 H2 Y5 F1000                                             ; Move slowly away. 
G1 H1 Y-215 F3000                                          ; Move quickly to the Y endstops, a second check.

; HOME Z
G1 H2 Z2 F1500                                             ; Raise the Z axis 2mm to ensure it is above the Z probe trigger height.
G90                                                        ; Set absolute positioning mode.
G1 X105 Y105 F1500                                         ; Go to the center of the bed for probe point.

M558 F1000 A1                                              ; Set the Z-probe to fast for the first pass.  
G30                                                        ; Perform Z probing.
G1 H0 Z2 F1000                                              ; Lift the Z axis to the 5mm position.

M558 F200 A3 S-1                                            ; Set the Z-probe to slow for the second pass, take 5 probes and yield the average.
G30                                                        ; Perform Z probing.
G1 H0 Z5 F400                                              ; Lift the Z axis to the 5mm position.

M558 F200 A1                                               ; Set the Z-probe to normal speed.  

M400
M913 X100 Y100 ; return current to 100%
M400

homex.g:

; homex.g
; called to home the X axis
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Mon Mar 15 2021 19:09:36 GMT+0100 (Mitteleuropäische Normalzeit)
M400
M913 X50 Y50 ; drop motor current to 50%
M400 G91; relative positioning

G1 H2 Z5 F1200    ; lift Z relative to current position
G1 H1 X-235 F6000 ; move quickly to X axis endstop and stop there (first pass)
G1 H2 X5 F6000    ; go back a few mm
G1 H1 X-235 F3000  ; move slowly to X axis endstop once more (second pass)
;G1 H2 X5 F6000    ; go back a few mm
G1 H2 Z-5 F1200    ; lower Z again
G90               ; absolute positioning
M400
M913 X100 Y100 ; return current to 100%
M400

homey:

; homey.g
; called to home the Y axis
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Mon Mar 15 2021 19:09:37 GMT+0100 (Mitteleuropäische Normalzeit)
M400
M913 X50 Y50 ; drop motor current to 50%
M400 G91; relative positioning

G1 H2 Z5 F6000    ; lift Z relative to current position
G1 H1 Y-215 F6000 ; move quickly to Y axis endstop and stop there (first pass)
G1 H2 Y5 F6000    ; go back a few mm
G1 H1 Y-215 F3000  ; move slowly to Y axis endstop once more (second pass)
G1 H2 Z-5 F6000   ; lower Z again
G90               ; absolute positioning

M400
M913 X100 Y100 ; return current to 100%
M400

homez.g:

; 0:/sys/homez.g
; Home the Z axis

;M98 P"current-sense-homing.g"                              ; Ensure the current and sensitivity is set for homing routines.

; !!! If using Pinda, comment-out the following two lines
;M280 P0 S160                                               ; BLTouch, alarm release.
;G4 P100                                                    ; BLTouch, delay for the release command.

G91                                                        ; Set relative positioning.
G1 H0 Z3 F6000                                             ; Lift Z axis 3mm.
G90                                                        ; Set absolute positioning.

G1 X105 Y105 F6000                                         ; Go to the center of the bed for probe point.

M558 F1000 A1                                              ; Set probing speed to fast for the first pass.  
G30                                                        ; Perform Z probing.
G1 H0 Z5 F400                                              ; Lift Z axis to the 5mm position.

M558 F50 A5 S-1                                            ; Set probing speed to slow for second pass, take 5 probes and yield the average.
G30                                                        ; Perform Z probing.
G1 H0 Z5 F400                                              ; Lift Z axis to the 5mm position.

M558 F200 A1                                               ; Set normal z-probe speed.

I only installed and configured the Duet 3 Mini 5+ a couple of weeks ago, so let me know how can improve my config for this printer.

By sharing this information I'm hoping that I'm also helping other friends.

Thank you all guys!

Ofn13

It's possible / allowed to share the PrusaSlicer and Simplify3D profiles?

oliof

@ofn13 why not? ideally you throw it all in a github repository to link to.

danielkrah

@Ofn13

I messured the resistance of the MK52 at 25°C,50°C and 100°C and calculated the values.
Which ended up in this configuration.

M308 S0 P"temp0" Y"thermistor" A"MK52" T93600 B6560 C3.865555e-7 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"out0" T0                                      ; create bed heater output on bedheat 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 S120                                               ; set temperature limit for heater 0 to 120C

apak

take a look at my settings....

https://github.com/macasero/Bear-mk3s-duet2

https://github.com/macasero/Bear-mk3s-duet3-mini