Need help with stopend switch.



  • Hi, I am new, have tried to fix endstops for my 3d with duet2wifi RepRapFirmware for Duet 2, 2.02 (RTOS) (2018-12-24b1) has built itself a BLV_mgn12. The problem is that can not understand how would microswitch work, have contacted switch to the outermost contacts on the switch NC and on duet2wifi on signal and ground, but without results. can any of you help me with that.
    Regards Christian



  • did you have this switch?
    endstop microswitch
    if yes on the thirt picture you see the cabel red is +3.3V black is gnd(-) and green is signal.





  • NC normaly means not conneted you have to use NO & C



  • Have followed this, do you know rotation on x y z stepper motor, maybe also my problem with switch.

    https://duet3d.dozuki.com/Wiki/Connecting_endstop_switches#3.3V-compatible_optical_endstop



  • @SIam said in Need help with stopend switch.:

    NC normaly means not conneted you have to use NO & C

    on a switch NC is normally normally closed, and its preferred for limit switches as it would prevent movement if the wire breaks.



  • @chris4 said in Need help with stopend switch.:

    can any of you help me with that.

    maybe post a picture of switch and duet connection?



  • some pictures , where it appears that the endstop LED is on, but Z Y X is not in the home position, if I press each switch, the endstop LED is off on duet2wifi.
    Should it be so?
    home position OFF, not home location ON!
    duet2wifi1).jpg duet2wifi(3).jpg duet2wifi(2).jpg duet2wifi (4).jpg



  • And the config.g

    code_text
    ; Configuration file for Duet WiFi (firmware version 2.03)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v2.1.8 on Mon Feb 17 2020 10:46:54 GMT+0100 (centraleuropeisk normaltid)

    ; General preferences
    G90 ; send absolute coordinates...
    M83 ; ...but relative extruder moves
    M550 P"Anet A8" ; 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 S1 ; physical drive 0 goes forwards
    M569 P1 S1 ; physical drive 1 goes forwards
    M569 P2 S0 ; physical drive 2 goes backwards
    M569 P3 S1 ; physical drive 3 goes forwards
    M584 X0 Y1 Z2 E3 ; set drive mapping
    M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
    M92 X100.00 Y100.00 Z400.00 E100.00 ; set steps per mm
    M566 X600.00 Y600.00 Z18.00 E300.00 ; set maximum instantaneous speed changes (mm/min)
    M203 X6000.00 Y6000.00 Z180.00 E6000.00 ; set maximum speeds (mm/min)
    M201 X1500.00 Y1500.00 Z100.00 E10000.00 ; set accelerations (mm/s^2)
    M906 X500 Y500 Z500 E800 I30 ; set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout

    ; Axis Limits
    M208 X-33 Y-10 Z0 S1 ; set axis minima
    M208 X220 Y220 Z240 S0 ; set axis maxima

    ; Endstops
    M574 X1 Y1 Z1 S0 ; set active low and disabled endstops

    ; Z-Probe
    M558 P0 H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed
    M557 X20:200 Y20:200 S40 ; define mesh grid

    ; Heaters
    M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
    M305 P0 T100000 B4725 C7.060000e-8 R4700 ; set thermistor + ADC parameters for heater 0
    M143 H0 S130 ; set temperature limit for heater 0 to 130C
    M305 P1 T100000 B4725 C7.060000e-8 R4700 ; set thermistor + ADC parameters for heater 1
    M143 H1 S275 ; set temperature limit for heater 1 to 275C

    ; Fans
    M106 P0 S0 I0 F500 H-1 ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
    M106 P1 S1 I0 F500 H1 T45 ; set fan 1 value, PWM signal inversion and frequency. 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

    ; Miscellaneous
    T0 ; select first tool



  • Homeall:

    ; homeall.g
    ; called to home all axes
    ;
    ; generated by RepRapFirmware Configuration Tool v2.1.8 on Mon Feb 17 2020 10:52:04 GMT+0100 (centraleuropeisk normaltid)
    G91                     ; relative positioning
    G1 H2 Z5 F6000          ; lift Z relative to current position
    G1 H1 X-258 Y-235 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
    G1 H2 X5 Y5 F6000       ; go back a few mm
    G1 H1 X-258 Y-235 F360  ; move slowly to X and Y axis endstops once more (second pass)
    G1 H1 Z-245 F360        ; move Z down stopping at the endstop
    G90                     ; absolute positioning
    G92 Z0                  ; set Z position to axis minimum (you may want to adjust this)
    
    ; Uncomment the following lines to lift Z after probing
    ;G91                    ; relative positioning
    ;G1 Z5 F100             ; lift Z relative to current position
    ;G90                    ; absolute positioning
    


  • ; homex.g
    ; called to home the X axis
    ;
    ; generated by RepRapFirmware Configuration Tool v2.1.8 on Mon Feb 17 2020 10:55:31 GMT+0100 (centraleuropeisk normaltid)
    G91               ; relative positioning
    G1 H2 Z5 F6000    ; lift Z relative to current position
    G1 H1 X-258 F1800 ; move quickly to X axis endstop and stop there (first pass)
    G1 H2 X5 F6000    ; go back a few mm
    G1 H1 X-258 F360  ; move slowly to X axis endstop once more (second pass)
    G1 H2 Z-5 F6000   ; lower Z again
    G90               ; absolute positioning
    


  • ; homey.g
    ; called to home the Y axis
    ;
    ; generated by RepRapFirmware Configuration Tool v2.1.8 on Mon Feb 17 2020 10:50:45 GMT+0100 (centraleuropeisk normaltid)
    G91               ; relative positioning
    G1 H2 Z5 F6000    ; lift Z relative to current position
    G1 H1 Y-235 F1800 ; move quickly to Y axis endstop and stop there (first pass)
    G1 H2 Y5 F6000    ; go back a few mm
    G1 H1 Y-235 F360  ; move slowly to Y axis endstop once more (second pass)
    G1 H2 Z-5 F6000   ; lower Z again
    G90               ; absolute positioning
    
    


  • ; homez.g
    ; called to home the Z axis
    ;
    ; generated by RepRapFirmware Configuration Tool v2.1.8 on Mon Feb 17 2020 11:09:06 GMT+0100 (centraleuropeisk normaltid)
    G91               ; relative positioning
    G1 H2 Z5 F6000    ; lift Z relative to current position
    G1 H1 Z-245 F1800 ; move Z down until the endstop is triggered
    G92 Z0            ; set Z position to axis minimum (you may want to adjust this)
    
    ; Uncomment the following lines to lift Z after probing
    ;G91              ; relative positioning
    ;G1 Z5 F100       ; lift Z relative to current position
    ;G90              ; absolute positioning
    

  • administrators

    I suggest you start by testing the endstop switch and wiring. See https://duet3d.dozuki.com/Wiki/Connecting_endstop_switches#Section_Test_endstop_switches.



  • Have fixed now, by changing the switch to NO and working now.
    Thanks for the help.

    But one more question, how can change the speed of Z axis on the way to endstop (low switch) to a slow speed last cm to endstop. The same speed, as on the x and y axis. I have this config.g

    ; Configuration file for Duet WiFi (firmware version 2.03)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v2.1.8 on Thu Feb 20 2020 13:12:07 GMT+0100 (centraleuropeisk normaltid)
    
    ; General preferences
    G90                                     ; send absolute coordinates...
    M83                                     ; ...but relative extruder moves
    M550 P"My Printer"                      ; 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 S1                              ; physical drive 0 goes forwards
    M569 P1 S1                              ; physical drive 1 goes forwards
    M569 P2 S0                              ; physical drive 2 goes backwards
    M569 P3 S0                              ; physical drive 3 goes forwards
    M584 X0 Y1 Z2 E3                        ; set drive mapping
    M350 X16 Y16 Z16 E16 I1                 ; configure microstepping with interpolation
    M92 X160.00 Y160.00 Z2560.00 E873.08    ; set steps per mm
    M566 X900.00 Y900.00 Z12.00 E120.00     ; set maximum instantaneous speed changes (mm/min)
    M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min)
    M201 X400.00 Y500.00 Z20.00 E250.00     ; set accelerations (mm/s^2)
    M906 X800 Y800 Z800 E800 I30            ; set motor currents (mA) and motor idle factor in per cent
    M84 S30                                 ; Set idle timeout
    
    ; Axis Limits
    M208 X-33 Y-10 Z0 S1                    ; set axis minima
    M208 X230 Y230 Z240 S0                  ; set axis maxima
    
    ; Endstops
    M574 X1 Y1 Z1 S0                        ; set active high endstops
    
    ; Z-Probe
    M558 P0 H5 F120 T6000                   ; disable Z probe but set dive height, probe speed and travel speed
    M557 X-18:215 Y5:195 S20                ; define mesh grid
    
    ; Heaters
    M305 P0 T100000 B4138 R4700             ; set thermistor + ADC parameters for heater 0
    M143 H0 S120                            ; set temperature limit for heater 0 to 120C
    M305 P1 T100000 B4138 R4700             ; set thermistor + ADC parameters for heater 1
    M143 H1 S280                            ; set temperature limit for heater 1 to 280C
    
    ; Fans
    M106 P0 S0 I0 F500 H-1                  ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
    M106 P1 S1 I0 F500 H1 T45               ; set fan 1 value, PWM signal inversion and frequency. 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
    T0
    ; Custom settings are not defined
    
    

    and the homez.g

     homez.g
    ; called to home the Z axis
    ;
    ; generated by RepRapFirmware Configuration Tool v2.1.8 on Fri Feb 21 2020 13:36:08 GMT+0100 (centraleuropeisk normaltid)
    G91               ; relative positioning
    G1 H2 Z5 F6000    ; lift Z relative to current position
    G1 H1 Z-245 F1800 ; move Z down until the endstop is triggered
    G92 Z0            ; set Z position to axis minimum (you may want to adjust this)
    
    ; Uncomment the following lines to lift Z after probing
    ;G91              ; relative positioning
    ;G1 Z5 F100       ; lift Z relative to current position
    ;G90              ; absolute positioning
    
    
    

    Thanks Christian


  • Moderator

    @chris4 said in Need help with stopend switch.:

    how can change the speed of Z axis on the way to endstop (low switch) to a slow speed last cm to endstop.

    It's not possible to slow down before the endstop, because it doesn't know where the endstop is before being homed. Typically homing would be done in two passes. A fast movement to the endstop, followed by a short movement back, and then a slower movement towards the endstop again for better accuracy.



  • @Phaedrux said in Need help with stopend switch.:

    It's not possible to slow down before the endstop, because it doesn't know where the endstop is before being homed. Typically homing would be done in two passes. A fast movement to the endstop, followed by a short movement back, and then a slower movement towards the endstop again for better accuracy.

    Thanks.