Z drive jumping layers help.



  • Z moving .15 - .20mm up on printing starts at .40 jumps to .50 then .70mm and so on iv used two different slicers and it dose not change.My x and y seem to run fine im lost. Im running 2.02 firmware on the ender 3

    ; Drives
    M569 P0 S0 ; Drive 0 goes backwards
    M569 P1 S0 ; Drive 1 goes backwards
    M569 P2 S1 ; Drive 2 goes backwards
    M569 P3 S0 ; Drive 3 goes backwards
    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
    M92 X80.00 Y80.00 Z4000.00 E420.00 ; Set steps per mm
    M566 X900.00 Y900.00 Z900.00 E120.00 ; Set maximum instantaneous speed changes (mm/min)
    M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; Set maximum speeds (mm/min)
    M201 X500.00 Y500.00 Z500.00 E250.00 ; Set accelerations (mm/s^2)
    M906 X800.00 Y800.00 Z800.00 E800.00 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 X220 Y220 Z250 S0 ; Set axis maxima

    ; Endstops
    M574 X1 Y1 Z0 S1 ; Set active high endstops

    ; Z-Probe
    ;M558 P9 F100 H5 R0.2 T6000 A5 B1 ; Set Z probe type to unmodulated and the dive height + speeds
    ;G31 P25 X10 Y10 Z2 ; Set Z probe trigger value, offset and trigger height
    ;M307 H3 A-1 C-1 D-1 ; Define mesh grid
    ;M557 X10 Y10 Z0

    ; Heaters
    M307 H0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
    M307 H1 A273.5 C93.8 D4.9 S1.00 V23.9 B0 ; set parameters for heater 1
    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 X150 T"K" ; set thermocouple parameters for heater 1 x150 is thr right channel (terminal block) on the daughterboard. x151 is the right channel.
    ;M305 P1 X201 ; Configure thermocouple for heater 1
    M143 H1 S325 ; Set temperature limit for heater 1 to 325C

    ; Fans
    M106 P0 S0.3 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
    M106 P1 S1 I0 F500 H-1 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off

    ; Tools
    M563 P0 D0 H1 ; 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

    ; Automatic saving after power loss is not enabled

    ; Custom settings are not configured



  • @waggonburner3 said in Z drive jumping layers help.:

    ; Endstops
    M574 X1 Y1 Z0 S1 ; Set active high endstops
    ; Z-Probe
    ;M558 P9 F100 H5 R0.2 T6000 A5 B1 ; Set Z probe type to unmodulated and the dive height + speeds
    ;G31 P25 X10 Y10 Z2 ; Set Z probe trigger value, offset and trigger height
    ;M307 H3 A-1 C-1 D-1 ; Define mesh grid
    ;M557 X10 Y10 Z0

    Your config.g says you have no z endstop (M574 ... Z0) but your z-probe lines are commented out, so how does your printer know how to home z?



  • @mudcruzr I'm not sure I had to play with this thing just to get it working and not crash on every drive. But everything homes great.



  • @waggonburner3 said in Z drive jumping layers help.:

    M92 X80.00 Y80.00 Z4000.00 E420.00 ; Set steps per mm

    How sure are you that your Z steps is 4000?



  • @phaedrux I'm not I new to the g coding I'm learning on the fly.



  • This will help you calculate the right steps per mm value.

    https://www.prusaprinters.org/calculator/#stepspermmlead

    I'm gonna guess that it's a 1.8 degree motor, 16 microsteps, and a TR8*8 lead screw that moves 8mm per rotation, which would make your z steps per mm 400 rather than 4000. That would explain why it's moving more than it should be.



  • @phaedrux that was a genarated number that came from the upload I will change and test and also read the article you sent.



  • @waggonburner3 The configurator also has a built in calculator, but you have to actually use it. 4000 is probably the default.



  • Thank you to everyone for the help I'm getting decent prints now I'll probably hooking up the bltouch in a day or so hope u can handle that by my self but I'm not holding my breath. Lol