Final Pre-Print Check - Recommendations

  • Am I missing anything before I start a test print?

    I've run autolevel G32, brought the bed and hot end to temperature, checked endstops, checked the extruder.

    I've autotuned the hot end and am about to auto tune the bed.

    Is there a way to set the max bed temperature?
    I used a 98C temperature fuse and wanted to lock it down just in case so no one ran it over 90C.

    Here are copies of my config and bed files and config-override with some autotune results (I still need to check the bed)

    I lowered (halved) some of the motor movements so the printer was not quite as loud (if anyone has recommendations for a good sound / speed balance please post them).


    ; Configuration file for Delta Print
    ; Max Metal Frame
    ; Ball Cup Trick laser carriages, effector, and 300.15mm arms
    ; FSR melamine plate
    ; JohnSL FSR sensors with silicone pads
    ; Onyx heat bed, aluminum plate, glass bed
    ; Bondtech Extruder 1.75mm

    ; Communication and general

    M111 S0 ; Debug off
    M552 S1 ; Turn on WiFi at boot
    M555 P2 ; Set output to look like Marlin
    G21 ; Work in millimetres
    G90 ; Send absolute coordinates…
    M83 ; ...but relative extruder moves
    M575 P1 B57600 S1 ; Set auxiliary serial port baud rate and require checksum (for PanelDue)

    ; 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 S1 ; Drive 3 (extruder) goes forwards
    M574 X2 Y2 Z2 S1 ; set endstop configuration (all endstops at high end, active high)
    M665 R141.833mm L300.15 B130 H361.918 X0.00 Y0.00 Z0.00 ; set delta radius, diagonal rod length, printable radius and homed height
    M666 X-0.506 Y0.379 Z0.000 ; put your endstop adjustments here, or let auto calibration find them
    M92 X80 Y80 Z80 ; 20 tooth pulleys with 1/16th microstepping and GT2 2mm belt
    M906 X1000 Y1000 Z1000 E500 ; Set motor currents (mA)
    M201 X500 Y500 Z500 E500 ; Accelerations (mm/s^2) default was 1000 for each
    M203 X10000 Y10000 Z10000 E1800 ; Maximum speeds (mm/min)
    M566 X600 Y600 Z600 E600 ; Maximum instant speed changes mm/minute

    ; PID ?
    M305 P0 T100000 B4388 R4700 H0 L475 ; Put your own H and/or L values here to set the bed thermistor ADC correction

    M305 P1 X200 ; PT100 Hotend, RTD1, channel 200

    ; Tool definitions
    M563 P0 D0 H1 ; Define tool 0
    G10 P0 S0 R0 ; Set tool 0 operating and standby temperatures

    M92 E490 ; Bondtech 1.75mm is listed as 490 steps per mm

    ; Z probe and compensation definition (P4 below is JohnSL?)

    M558 P4 X0 Y0 Z0 H3 ; Z probe is a switch and is not used for homing any axes (i.e. JohnSL is a three-pin connected to E0 Extruder 0 Endstop
    G31 X0 Y0 Z-0.05 P500 ; Set the zprobe height and threshold (put your own values here) - adjust P-value for more pressure (P500 default seems light)

    ;* If you are using axis compensation, put the figures in the following command
    M556 S78 X0 Y0 Z0 ; Axis compensation here
    M208 S1 Z-0.2 ; set minimum Z
    T0 ; select first hot end**


    ; Auto calibration routine for delta printers
    ; Before running this, you should have set up your zprobe Z offset to suit your build, in the G31 command in config.g.

    M561 ; clear any bed transform, otherwise homing may be at the wrong height
    G31 X0 Y0 ; don't want any probe offset for this
    G28 ; home the printer

    ; bed.g file for RepRapFirmware, generated by Escher3D calculator
    ; 4 points, 3 factors, probing radius: 100, probe offset (0, 0)
    ; Generate a new section at

    G30 P0 X0.00 Y100.00 Z-99999 H0

    G30 P1 X64.28 Y76.60 Z-99999 H0

    G30 P2 X98.48 Y17.36 Z-99999 H0

    G30 P3 X86.60 Y-50.00 Z-99999 H0

    G30 P4 X34.20 Y-93.97 Z-99999 H0

    G30 P5 X-34.20 Y-93.97 Z-99999 H0

    G30 P6 X-86.60 Y-50.00 Z-99999 H0

    G30 P7 X-98.48 Y17.36 Z-99999 H0

    G30 P8 X-64.28 Y76.60 Z-99999 H0

    G30 P9 X0.00 Y50.00 Z-99999 H0

    G30 P10 X43.30 Y-25.00 Z-99999 H0

    G30 P11 X-43.30 Y-25.00 Z-99999 H0

    G30 P12 X0 Y0 Z-99999 S6

    G1 X0 Y0 Z150 F10000 ; get the head out of the way of the bed


    ; This is a system-generated file - do not edit
    ; Delta parameters
    M665 L300.150 R142.028 H361.977 B130.0 X-0.453 Y0.410 Z0.000
    M666 X-0.042 Y0.130 Z-0.089 A0.00 B0.00
    ; Heater model parameters
    M307 H0 A90.0 C700.0 D10.0 S1.00 B1
    M307 H1 A466.6 C173.9 D3.5 S1.00 B0
    M307 H2 A340.0 C140.0 D5.5 S1.00 B0
    M307 H3 A340.0 C140.0 D5.5 S1.00 B0
    M307 H4 A340.0 C140.0 D5.5 S1.00 B0
    M307 H5 A340.0 C140.0 D5.5 S1.00 B0
    M307 H6 A340.0 C140.0 D5.5 S1.00 B0
    M307 H7 A340.0 C140.0 D5.5 S1.00 B0
    ; Z probe parameters
    G31 T1 P500 X0.0 Y0.0 Z0.70
    G31 T3 P500 X0.0 Y0.0 Z0.70
    G31 T4 P500 X0.0 Y0.0 Z-0.05

  • [c]M143 H0 S90[/c] should limit the bed temperature to 90 °C.

  • @tomasf:

    [c]M143 H0 S90[/c] should limit the bed temperature to 90 °C.


    I'm printing a Stanford Bunny right now.

    I've gone from a Mini-Rambo Rostock Max v2 to this Duet WiFi Max Metal, it is indeed much quieter and smoother - plus the auto-leveling is a time-saver once you get it running.

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