Somehow prints are being stretched bigger vertically



  • i installed this duet a week ago and still cant get one right print, now parts are wrong size all along i found out. I use repetier slicer for both my 3d printers and only the duetwifi ones are wrong.

    ; Configuration file for Duet WiFi (firmware version 1.17)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool on Tue Aug 22 2017 21:23:05 GMT-0400 (Eastern Daylight Time)

    ; General preferences
    M111 S0 ; Debugging off
    G21 ; Work in millimetres
    G90 ; Send absolute coordinates…
    M83 ; ...but relative extruder moves
    M555 P1 ; Set firmware compatibility to look like RepRapFirmare
    M208 X0 Y0 Z0 S1 ; Set axis minima
    M208 X200 Y200 Z200 S0 ; Set axis maxima

    ; Endstops
    M574 X1 Y1 Z1 S0 ; Define active low and unused microswitches
    M558 P0 X0 Y0 Z0 H5 F120 T6000 ; Set Z probe type to switch, the axes for which it is used and the probe + travel speeds
    G31 P0 X0 Y0 Z0 ; Set Z probe trigger value, offset and trigger height
    M557 X15:185 Y15:185 S20 ; Define mesh grid

    ; Drives
    M569 P0 S1 ; Drive 0 goes forwards
    M569 P1 S1 ; Drive 1 goes forwards
    M569 P2 S1 ; Drive 2 goes forwards
    M569 P3 S1 ; Drive 3 goes forwards
    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
    M92 X87.489 Y87.489 Z4000 E420 ; Set steps per mm
    M566 X900 Y900 Z12 E120 ; Set maximum instantaneous speed changes (mm/min)
    M203 X18000 Y18000 Z180 E1200 ; Set maximum speeds (mm/min)
    M201 X700 Y100 Z250 E250 ; Set accelerations (mm/s^2)
    M906 X1400 Y1400 Z1400 E1400 I30 ; Set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout

    ; Heaters
    M143 S280 ; Set maximum heater temperature to 280C
    M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
    M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1

    ; 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

    ; Network
    M550 PTevo ; Set machine name
    M552 S1 ; Enable network
    M587 Schrisnet P"chrisnet" ; Configure access point. You can delete this line once connected
    M586 P0 S1 ; Enable HTTP
    M586 P1 S0 ; Disable FTP
    M586 P2 S0 ; Disable Telnet

    ; 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 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
    M106 P2 S1 I0 F500 H1 T45 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

    ; Custom settings are not configured



  • Repetier isn't a slicer. Which slicer in Repetier are you using? If I remember right, it has Cura, Slic3r and Skeinforge. Cura has issues that you have been told about in another thread you had going.



  • what size pullys do you have on that printer your steps/mm seem to be odd also is it GT2 belt or MXL.

    87.489 is a strange Steps/mm figure also what type of thread is on you Z Axis (Diam and Pitch plus thread type please).


  • administrators

    87.489 is correct for the MXL belts and pulleys on the Ormerod printer. I presume they are 18 tooth pulleys.

    However, most printers use GT2 belts and pulleys, not MXL.



  • stock cheep chineese tevo tarantula printer gt2 belt, and found in repatier were it was using cura as slicer i changed to slic3r prusia edition ,will try after work. and the printer settings are from the RRF configeration tool default settings for cartisian printer



  • stock cheep chineese tevo tarantula printer gt2 belt, and found in repatier were it was using cura as slicer i changed to slic3r prusia edition ,will try after work. and the printer settings are from the RRF configeration tool default settings for cartisian printer
    changed motors to these

    • Manufacturer Part Number: 17HS16-2004S
    • Motor Type: Bipolar Stepper
    • Step Angle: 1.8 deg.
    • Holding Torque: 45Ncm(63.7oz.in)
    • Rated Current/phase: 2A
    • Phase Resistance: 1.1ohms
    • Inductance: 2.6mH+/-20%(1KHz)
      duel z
      T82 lead screw 375 mm 8mm with brass copper
      upgradded pullys
      GT2 20Teeth 3mm Bore Aluminum Timing Belt Idler Pulley
      and upgradded to duel y with 10mm rods instead od 8mm
      and
      Corrosion-Resistant Ball Bearing Carriages and Guide Rails for x axis industrial grade not cheep amazon MGN12
      other than that stock

  • administrators

    For GT2 pulleys with 20 teeth, the X and Y steps/mm should be 80. For a leadscrew with 2mm lead driven direct from the motor with no reduction, the Z steps/mm should be 1600.



  • ok printing best prints ever finnally, was 1600mm steps for z and i opened my old merlin folder and just copied old settings and runs great now thank you.


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