Prusa MK3S Duet 2 Wifi

tifrei

Hello everyone,

I tried using the provided guide (from rkolbi github) for setting up a configuration for my stock Prusa MK3S but i failed. ITs wired but i cant get it to home propperly.

Does somebody has a working config for a stock Prusa MK3S he can share?

this would be greatly appreciated!

ThanksS

Phaedrux

It's just a cartesian. How does it fail homing?

https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCartesianPrinter#Section_Homing_files

Kolbi

@tifrei Do remember, I am not using stock motors - see here.
https://github.com/rkolbi/RRF-machine-config-files/tree/master/Prusa MK3s

Another example you can use for a follow-along would be the Caribou github.
https://github.com/Caribou3d/CaribouDuet-Configuration-and-Macros

Also Argo's config files are here:
https://github.com/Argolein/RRF-machine-config-files/tree/master/Prusa MK3s

Also, my cofig.g (https://github.com/rkolbi/RRF-machine-config-files/blob/master/Prusa MK3s/sys/config.g) has comments for running on stock motors. Did you make changes to this file to match your setup?

tifrei

Thanks for the replies:

When i use caribou firmware without a change x and y home (just changing direction of y motor). I thought this wouldnt wor because caribou uses 0.9 motors and i have 1.8 standard?

When I use caribou firmware changed what you have in your config tho from:

; Motor Configuration
;
M584 X0 Y1 Z2:4 E3                                     ; set drive mapping
M671 X-36.5:293.5 Y0:0 S1.00                           ; leadscrews at left (connected to Z) and right (connected to E1) of X axis
;
; set Microsteps and steps / mm
;
M350 X16 Y16 Z16 E16 I1                                ; configure microstepping with interpolation
M92 X200.00 Y200.00 Z400.00 E830.00                    ; set steps per mm
;
; set motor currents
;
M906 X1250 Y1250 Z650 E900 I40                         ; set motor currents (mA) and motor idle factor in per cent
;
M84 S60                                                ; Set idle timeout
;
; set speeds
;
M201 X500.00 Y500.00 Z100.00 E500.00                   ; set accelerations (mm/s^2)
M203 X9000.00 Y9000.00 Z1000.00 E3600.00               ; set maximum speeds (mm/min)
M204 P500.0 T500.0                                     ; set print and travel accelerations (mm(s^2)
M566 X480.00 Y480.00 Z48.00 E300.00                    ; set maximum instantaneous speed changes (mm/min)
;
M564 H0

to:

; Motor Configuration
;
M584 X0 Y1 Z2:4 E3                                     ; set drive mapping
M671 X-36.5:293.5 Y0:0 S1.00                           ; leadscrews at left (connected to Z) and right (connected to E1) of X axis
;
; set Microsteps and steps / mm
;
M906 X620.00 Y620.00 Z560.00 E650.00 I10.                ; Set motor currents (mA) and motor idle factor in percent
M350 X16 Y16 Z16 I1                                      ; Set X, Y, and Z Microstepping with interpolation 
M350 E32 I0                                              ; Set Extruder Microstepping without interpolation 
M92 X100.00 Y100.00 Z400.00 E280.00                      ; Steps per mm
; !!! Also note that you should edit the current-sense-homing.g file and increase current to 50 on X and Y, 100 on Z.
; !!! M913 X20 Y20 Z60   --->   M913 X50 Y50 Z100
;
M566 X600.00 Y600.00 Z24.00 E300.00 P1                     ; Set maximum instantaneous speed changes (mm/min)
M203 X15000.00 Y15000.00 Z900.00 E2000.00                  ; Set maximum speeds (mm/min)
M201 X4000.00 Y4000.00 Z1000.00 E5000.00                   ; Set accelerations (mm/s^2)
M906 X1340.00 Y1600.00 Z550.00 E550.00 I50                 ; Set initial motor currents (mA) and motor idle factor in percent
M84 S1000                                      
;
M84 S60                                                ; Set idle timeout

Than homing doesnt work anymore... What am i missing?

Kolbi

For the motor config block, try:

; Motor Configuration !!! For stock motors

; !!! Also note that you should edit the current-sense-homing.g file and increase current to 50 on X and Y, 100 on Z.
; !!! M913 X20 Y20 Z60   --->   M913 X50 Y50 Z100
;
M350 X16 Y16 Z16 I1                                        ; Set X, Y, and Z microstepping with interpolation
M350 E32 I0                                                ; Set Extruder Microstepping without interpolation
M92 X100.00 Y100.00 Z400.00 E280.00                        ; Set steps per mm
M566 X600.00 Y600.00 Z24.00 E300.00 P1                     ; Set maximum instantaneous speed changes (mm/min)
M203 X15000.00 Y15000.00 Z900.00 E2000.00                  ; Set maximum speeds (mm/min)
M201 X4000.00 Y4000.00 Z1000.00 E5000.00                   ; Set accelerations (mm/s^2)
M906 X620.00 Y620.00 Z550.00 E550.00 I50                   ; Set initial motor currents (mA) and motor idle factor in percent
M84 S1000                                                  ; Set idle timeout before shifitng to idle-current  

; Motor remapping for dual Z and axis Limits
M584 X0 Y1 Z2:4 E3                                         ; Set two Z motors connected to driver outputs Z and E1
M671 X-37:287 Y0:0 S10                                     ; Leadscrew at left connected to Z, leadscrew at right connected to E1

and also current-sense-homing.g:

; 0:/sys/current-sense-homing.g
; Set the current and sensitivity for homing, non-printing, routines

M915 X S2 F0 H400 R0                                       ; Set the X axis sensitivity.
M915 Y S2 F0 H400 R0                                       ; Set the Y axis sensitivity.
M913 X50 Y50 Z100                                          ; Set the X, Y, and Z drivers current percentage for non-print moves, per config.g.

Let me know if that helps.