Homing failed, heating failed. Delta HC-250

  • administrators

    Also please post your homedelta.g file here as text, as you did with your config.g file.

  • administrators

    Thanks, I can see those images.

    1. Homing failed: I still need to see the contents of your homedelta.g file.

    2. Heating fault (temperature rising too slowly): see my reply yesterday, https://www.duet3d.com/forum/thread.php?pid=44742#p44742.

  • homing problem is solved the homing file had everything commented

  • The z probe always shows at min stop. The threshold value is shows 1000 and when triggered it shows 165 how to reverse this one ?

  • administrators


    The z probe always shows at min stop. The threshold value is shows 1000 and when triggered it shows 165 how to reverse this one ?

    Add parameter I1 in your M558 command. That's letter-i followed by digit-1. Better still, use the NC conrtacts of your switch instead of the NO contacts, which is safer if the switch becomes disconnected.

  • yes it solved the problem. Is it ok if we use 31865 board for PT 100 sensor with a reference resistance of 430ohms. I have read the instructions where it says use 400ohms Ref resister. we also have a Resister 391 ohms but have to replace that one on the board. we have also order the daughter board but it will take 2-3 week to reach our office. Is it possible to use 31865 board as we currently have in stock.

  • administrators

    To use a PT100 board with a 430 ohm reference resistor, use parameter R430 in the M305 command that configures the heater to use that PT100 channel.

  • this is the new config file
    ; Configuration file for testing Duet Ethernet and Wifi with V1.19.2 firmware

    FOR TESTING ONLY! USE https://configurator.reprapfirmware.org/ to generate configuration files for your printer!

    ; Communication and general
    M111 S0 ; Debug off
    M550 DELTAHC250 ; Machine name and Netbios name (can be anything you like)
    M551 Preprap ; Machine password (used for FTP)

    ;*** Networking
    M552 S1 ; Turn network on

    ;*** Ethernet networking: Adjust the IP address and gateway in the following 2 lines to suit your network
    M552 P192.168.1.14 ; (0 = DHCP)
    M554 P192.168.1.255 ; Gateway
    M553 P255.255.255.0 ; Netmask

    M555 P2 ; Set output to look like Marlin
    G21 ; Work in millimetres
    G90 ; Send absolute coordinates…
    M83 ; ...but relative extruder moves

    ; Disable Fan 1 thermostatic mode
    M106 P1 H-1

    ; Axis and motor configuration
    M569 P0 S1 ; Drive 0 goes forwards
    M569 P1 S0 ; Drive 1 goes forwards
    M569 P2 S0 ; Drive 2 goes forwards
    M569 P3 S1 ; Drive 3 goes forwards
    M569 P4 S1 ; Drive 4 goes forwards
    M574 X2 Y2 Z2 S1 ; set endstop configuration (all endstops at high end, active high)
    ;M574 E0 S1
    ;*** The homed height is deliberately set too high in the following - you will adjust it during calibration
    M665 R105.6 L215.0 B85 H322 ; 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 Z16 E16:16 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 X200 ; Put your own H and/or L values here to set first nozzle thermistor ADC correction
    M305 P1 X200 ; Put your own H and/or L values here to set 2nd nozzle thermistor ADC correction
    M305 P2 T100000 B3950 R4700 H30 L0
    ;heated chamber

    M141 H2 ; heater 3 is the chamber heater
    M301 H2 B1 ; use bang-bang control for the chamber heater

    ; Adjustments for Lite6 hotends used as dummy heaters on test rig
    M307 H0 A250 C140 D6.5 B1
    M307 H1 A250 C140 D6.5 B0
    M307 H2 A250 C140 D6.5 B1 S0.5
    M143 H0 S170
    M143 H1 S410
    M143 H2 S95

    ; Fans
    M106 P1 S-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 H1 ; Define tool 1
    G10 P1 S0 R0 ; Set tool 1 operating and standby temperatures
    M92 E663:663 ; Set extruder steps per mm

    ; Z probe and compensation definition
    ;*** If you have a switch instead of an IR probe, change P1 to P4 in the following M558 command
    M558 P4 X0 Y0 Z0 F100 I1 T2000 H15 ; Z probe is an IR probe and is not used for homing any axes
    G31 X0 Y18 Z2.80 P500 ; Set the zprobe height and threshold (put your own values here)

    ;*** 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

  • All the heaters are fluctuating more or less 5C even after auto tuning. The Chamber behaves a little wired sometime it gives the temperature rise error and some time it doesn't. please guide us through right procedure.

    Also during bed levelling, While clicking at the UI Autobedlevel button it will take all the points correctly , but if we give the g32 command the head will move outside the bed size to take the points.

  • bed.gcode

    ; Auto calibration routine for an example 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.
    ;you should use https://configurator.reprapfirmware.org/ to setup a correct bed.g file for your printer, what is below is just an example (and its commented out)

    M117 Use https://configurator.reprapfirmware.org/ to set up your printer config

    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

    ;*** Remove the following line if your Z probe does not need to be deployed
    ;M98 Pdeployprobe.g ; deploy the mechanical Z probe

    ; The first time the mechanical probe is used after deployment, it gives slightly different results.
    ; So do an extra dummy probe here. The value stored gets overwritten later. You can remove this if you use an IR probe.
    G30 P0 X0 Y0 Z-99999

    ;G1 Z30 F200

    G1 X-73.6 Y-42.5 F2000
    ; Probe the bed and do 6- or 7-factor auto calibration
    G30 P0 X-73.6 Y-42.5 Z-99999 F200 ; X tower
    ;G1 Z30 F200
    ;G1 X0 Y-85 F2000
    G30 P1 X0 Y-85 Z-99999 ; between X and Y towers
    ;G1 Z30 F200
    ;G1 X73.6 Y-42.5 F2000
    G30 P2 X73.6 Y-42.5 Z-99999 ; Y tower
    ;G1 Z30 F200
    ;G1 X73.6 Y20 F2000
    G30 P3 X73.6 Y20 Z-99999 ; between Y and Z towers
    ;G1 Z30 F200
    ;G1 X0 Y67 F2000
    G30 P4 X0 Y67 Z-99999 ; Z tower
    ;G1 Z30 F200
    ;G1 X-73.6 Y20 F2000
    G30 P5 X-73.6 Y20 Z-99999 ; between Z and X towers
    ;G1 Z30 F200
    ;G1 X-36.8 Y-21.25 F2000
    G30 P6 X-36.8 Y-21.25 Z-99999 ; half way to X tower
    ;G1 Z30 F200
    ;G1 X36.8 Y-21.25 F2000
    G30 P7 X36.8 Y-21.25 Z-99999 ; half way to Y tower
    ;G1 Z30 F200
    ;G1 X0 Y42.5 F2000
    G30 P8 X0 Y42.5 Z-99999 ; half way to Z tower
    ;G1 Z30 F200
    ;G1 X0 Y0 F2000
    G30 P9 X0 Y0 Z-99999 S6 ; centre, and auto-calibrate 6 factors

    ;*** Remove the following line if your Z probe does not need to be retracted
    ;M98 Pretractprobe.g ; retract the mechanical Z probe

    G1 X0 Y0 Z150 F2500 ; get the head out of the way of the bed

  • administrators

    Please use the configurator to generate a new bed.g file. Also if there are deployprobe.g and retractprobe.g files in /sys on the SD card that you didn't create yourself, delete them.

    The heaters shouldn't normally oscillate if you tuned them correctly and saved the M307 parameters to configure.g, however if the do then increasing the D parameter in the M307 command should cure that.


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