Rostock V3 Duet3d Wifi and FSR



  • Hey guys! I just transformed my rostock v3 to a duet, received my johnsl fsr probing kit and also my fsr plate from trick laser. I am having issues getting the auto calibration to work. It basically moves around in a circle and stops at points but it does not move down to probe the plate. I am getting console errors saying:

    6:09:53 PMError: Z probe already triggered at start of probing move
    6:09:52 PMError: Z probe already triggered at start of probing move
    6:09:51 PMError: Z probe already triggered at start of probing move
    6:09:51 PMError: Z probe already triggered at start of probing move
    6:09:50 PMError: Z probe already triggered at start of probing move
    6:09:49 PMError: Z probe already triggered at start of probing move
    6:09:48 PMError: Z probe already triggered at start of probing move
    6:09:47 PMError: Z probe already triggered at start of probing move
    6:09:46 PMError: Z probe already triggered at start of probing move
    6:09:44 PMError: Z probe already triggered at start of probing move
    6:09:43 PMError: Z probe already triggered at start of probing move
    6:09:41 PMError: Z probe already triggered at start of probing move
    6:09:40 PMG32
    Error: Z probe already triggered at start of probing move

    Here is my config.g code

    [[language]]; Configuration file for SeeMeCNC Rostock MAX V3
    
    ; Communication and general
    ;*** Wifi Networking
    M552 S1					; Enable WiFi
    
    M555 P2                           	; Set output to look like Marlin
    M575 P1 B57600 S1			; Comms parameters for PanelDue
    
    G21                                 	; Work in millimeters
    G90                                	; Send absolute coordinates...
    M83                                 	; ...but relative extruder moves
    
    ; Axis and motor configuration
    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
    M569 P4 S0				; Drive 4 goes forwards
    M574 X2 Y2 Z2 S1			; set endstop configuration (all endstops at high end, active high)
    ;*** The homed height is deliberately set too high in the following - you will adjust it during calibration
    M665 R144.158 L291.06 B120 H385 X0 Y0 Z0		; 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
    M350 X16 Y16 E16 I1    			; Set 16x microstepping with interpolation
    M92 X80 Y80 Z80				; Set axis steps/mm
    M906 X1000 Y1000 Z1000 E800 I60		; Set motor currents (mA) and increase idle current to 60%
    M201 X1000 Y1000 Z1000 E1000		; Accelerations (mm/s^2)
    M203 X20000 Y20000 Z20000 E3600		; Maximum speeds (mm/min)
    M566 X1200 Y1200 Z1200 E1200		; Maximum instant speed changes mm/minute
    
    ; Thermistors
    M305 P0 T100000 B3950 R4700 H30 L0	; Put your own H and/or L values here to set the bed thermistor ADC correction
    M305 P1 T100000 B3974 R4700 H30 L0	; Put your own H and/or L values here to set the first nozzle thermistor ADC correction
    ;M305 P2 T100000 B3974 R4700 H30 L0	; Put your own H and/or L values here to set the second nozzle thermistor ADC correction
    M570 S180				; Hot end may be a little slow to heat up so allow it 180 seconds
    
    ; Fans
    M106 P1 H-1 				; disable thermostatic mode for fan 1
    
    ; Tool definitions
    M563 P0 D0 H1                       	; Define tool 0
    G10 P0 S0 R0                        	; Set tool 0 operating and standby temperatures
    ;*** If you have a single-nozzle build, comment the next 2 lines
    ;M563 P1 D1 H2                      	; Define tool 1
    ;G10 P1 S0 R0                       	; Set tool 1 operating and standby temperatures
    M92 E92.4:92.4                       	; Set extruder steps per mm
    
    ; Z probe and compensation definition
    M558 P5 X0 Y0 Z0
    
    ; grid compensation
    M557 R110 S15
    
    G31 X0 Y0 Z-.05 p500			; Set the zprobe offset and threshold (determine your printer's Z offset value). For a delta, use zero X and Y offset.
    
    ;*** If you are using axis compensation, put the figures in the following command
    M556 S78 X0 Y0 Z0                   	; Axis compensation here
    
    T0						; select first hot end
    
    

    and bed.g file

    [[language]]
    ; Auto calibration routine for SeeMeCNC Rostock MAX V3
    ;
    ; About the G30 S parameter
    ; Used to specify what calibration computation to perform.
    ;
    ; S=-1 Don't adjust anything, just print the height error at each probe point
    ; S=0 Equivalent to S= <number_of_points_probed>; S=3 Adjust homing switch corrections only
    ; S=4 Adjust homing switch corrections and delta radius
    ; S=6 Adjust homing switch corrections, delta radius, and X and Y tower position offsets
    ; S=7 Adjust homing switch corrections, delta radius, X and Y tower position offsets, and diagonal rod length 
    
    M561					; clear any bed transform, otherwise homing may be at the wrong height
    G28					; home the printer
    
    G1 X0.00 Y135.00 Z10 F15000			; move to just above the first probe point (from the list below)
    
    ; bed.g file for RepRapFirmware, generated by Escher3D calculator
    ; 13 points, 6 factors, probing radius: 100, probe offset (0, 0)
    G30 P0 X0.00 Y135.00 Z-99999 H0
    G30 P1 X116.91 Y67.50 Z-99999 H0
    G30 P2 X116.91 Y-67.50 Z-99999 H0
    G30 P3 X0.00 Y-135.00 Z-99999 H0
    G30 P4 X-116.91 Y-67.50 Z-99999 H0
    G30 P5 X-116.91 Y67.50 Z-99999 H0
    G30 P6 X0.00 Y67.50 Z-99999 H0
    G30 P7 X58.46 Y33.75 Z-99999 H0
    G30 P8 X58.46 Y-33.75 Z-99999 H0
    G30 P9 X0.00 Y-67.50 Z-99999 H0
    G30 P10 X-58.46 Y-33.75 Z-99999 H0
    G30 P11 X-58.46 Y33.75 Z-99999 H0
    G30 P12 X0 Y0 Z-99999 S6
    
    G1 X0 Y0 Z150 F15000			; get the head out of the way of the bed</number_of_points_probed> 
    

    Can anyone please help. Thanks!



  • Never mind, found out what was wrong with it.



  • Might I trouble you for some hints on how you solved this? I underwent a Rostock Max V3 conversion Friday night from stock, to DuetWifi / PanelDue 7i / Ultibots FSR + JohnSL / TrickLaser bed. Stock firmware 1.21 (2018-03-21). Since late Friday night I have been chasing this exact problem with little success or change in behavior. Prior to the conversion the Rostock Max V3 was working pretty much as expected, with some expected variance in the calibration from the HE280 accelerometer (which lead me to the FSRs).

    Duet install went fine, (nearly) all seems to be working as expected. FSR install went smoothly, and both the three pads and the base triggers with a light touch, and the E0 LED on the Duet blinks as well as the Z probe value changes in the web UI. I installed the rostockmax3 settings zipfile I found online, and the values for the machine (delta radius, rod length, etc) look about right. G32 lowers the head then circles the bed without probing. If I increase the machine height, it digs into the bed and drags the nozzle until I kill it. If I do the auto mesh compensation in the web UI the head lowers towards X at a rapid pace then smashes into the bed until I kill it.

    I do notice this in the logs on occasion:

    Error: Z probe already triggered at start of probing move

    I've read the forum here, as well as the tuning blog posts from Sublime Layers and dc42, and am still struggling. I generated a custom bed probe from the Escher website.

    I feel like a n00b again, and I know the answer is staring me in the face and I am just too far into the weeds to see it after 40 hours.

    Thanks for any tips you can provide!



  • @cherringshaw Hey cherringshaw, in your config.g look for an m558 command. If there is not an "i" parameter in the string add i1 to the end of the line. That should invert the sensor so that it triggers properly.



  • @toddwagner That worked great; I know I tried that setting at least 3-4 other times during my hours of debugging, but I suspect the bed height was too far off combined with the H offset being wrong, so it either turned up short or smashed into the bed. The combination of getting those two close plus the inversion of the sensor worked well. Now it homes like a champ. THANK YOU.



  • @cherringshaw Excellent!


 

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