Pay for config / json files for my corexy printer build.



  • @stevo said in Pay for config / json files for my corexy printer build.:

    When looking down on the printer with the two steppers controlling x and y at the bottom the tool head travels in both negative's axis direction to the bottom left.

    Have you read the link deckingman has mentioned ? -> https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCoreXYPrinter

    Quote from the Movement Section: https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCoreXYPrinter#Section_Movement_section

    For a CoreXY or H-Bot machine, RepRapFirmware assumes that the motor connected to the X motor output moves the head in the +X and +Y directions when it runs forwards, and that the Y motor moves the head in +X and -Y directions when it runs forwards.

    Then test for the correct X motor movement by sending these commands from the console:

    G91
    G1 S2 X10 F3000

    If the head moves diagonally in the +X and +Y directions, all is well. If it moves in the -X and -Y directions, change the S parameter to S1 in the M569 P0 command. If it moves towards +X and -Y, or towards -X and +Y, turn the power off and swap the X and Y motor

    Read the whole section again and run each command to test if everything moves in the direction it should



  • it sound like you are still in cartesian mode rather than corexy mode.

    for bltouch see this guide
    https://betrue3d.dk/bltouch-on-duet-wifi-configuratio-and-usage/



  • I have followed Mark Rehorst's (thank you Mark) how to set up core xy origin and Endstops article origin is at Alpha motor all positive movement is in the direction of the top right pulley.
    The tool homes back to the Alpha motor.

    0_1562005273585_corexy example.jpg



  • @stevo Do you have a problem with the motion or not? - I'm a bit confused because it sounds like it's doing what it should do..

    To be clear, if you command an X positive move, the print head moves from left to right in your diagram and there is no movement in the Y direction. Yes or no? If no, what happens when you command an X only positive move?

    Conversely, if you command an X negative move, the head moves from right to left and there is no movement in the Y direction yes or no?

    And a Y positive move moves the head towards the back and there is no movement left or right. Yes?



  • @deckingman Yes it ticks all the boxes Veti mentioned in still appeared to be in cartesian mode guess its my poor description lol

    Thank you



  • please post your config.g so we can have a look at what you configured so far.



  • This is where I'm up to so far.
    Im in the process of adding the BLtouch wiring to the existing loom need to remove existing Z axis end stop.

    ; Configuration file for Duet WiFi (firmware version 1.21)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v2 on Sun Jun 30 2019 12:38:00 GMT+0100 (BST)

    ; General preferences
    G90 ; Send absolute coordinates...
    M83 ; ...but relative extruder moves

    M669 K1 ; Select CoreXY mode

    ; Network
    M550 P"WILE E COYOTE" ; Set machine name
    M552 S1 ; Enable network
    ;*** Access point is configured manually via M587
    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
    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
    M92 X80.00 Y80.00 Z1600.00 E420.00 ; Set steps per mm
    M566 X900.00 Y900.00 Z30.00 E3000.00 ; Set maximum instantaneous speed changes (mm/min)
    M203 X6000.00 Y6000.00 Z144.00 E1200.00 ; Set maximum speeds (mm/min)
    M201 X500.00 Y500.00 Z20.00 E250.00 ; Set accelerations (mm/s^2)
    M906 X800.00 Y800.00 Z2000.00 E800.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout

    ; Axis Limits
    M208 X-220 Y-220 Z0 S1 ; Set axis minima
    M208 X220 Y220 Z660 S0 ; Set axis maxima

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

    ; Z-Probe
    M307 H3 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch
    M558 P9 H15 F120 T6000 ; Set Z probe type to bltouch and the dive height + speeds
    G31 P500 X32 Y2 Z2.5 ; Set Z probe trigger value, offset and trigger height
    M557 X220:220 Y-220:220 S20 ; Define mesh grid

    ; Heaters
    M140 H-1 ; Disable heated bed
    M305 P1 T100000 B4725 C7.060000e-8 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 C"Part fan". ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
    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 ; 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

    ; Miscellaneous
    T0 ; Select first tool



  • just to double check you are running firmware version 2.03?



  • @veti Yes i am



  • @stevo said in Pay for config / json files for my corexy printer build.:

    M669

    whats is the output if you issue M669 in the console.



  • @stevo One thing about your config.g that looks odd to me is that the steps per mm for Z look right for a metric lead screw but looking at your machine name, I'd have thought that you would be using Acme threads ☺



  • 1600 is a lead screw 1 start 2mm lead.
    some people use them because it allows for 0.01mm layer height variation.



  • @veti said in Pay for config / json files for my corexy printer build.:

    1600 is a lead screw 1 start 2mm lead.
    some people use them because it allows for 0.01mm layer height variation.

    I know. I was making a joke when I saw the OP's machine name. You need to have watched the cartoons to know the significance of "Acme" though.......



  • Should probably switch joke supplier;)



  • @bearer said in Pay for config / json files for my corexy printer build.:

    Should probably switch joke supplier;)

    Yes, a joke never works when you have to explain it...........



  • that went straight over my head.



  • This be the "Road runner" lol

    Finished it last year enjoyed nearly every minute of the build lol

    0_1562185279505_IMG_0101.JPG



  • @veti as follows.....

    0_1562185760975_IMG_1670 copy 2.jpg



  • Evening,
    If I wanted to home y axis first prior to the x due to how i plan to locate the x and y endstops have I made suitable alterations to the home all file to do this ?
    Be gentle lol

    ; homeall.g
    ; called to home all axes
    ;
    ; generated by RepRapFirmware Configuration Tool v2 on Wed Jun 26 2019 19:39:28 GMT+0100 (BST)
    G91 ; relative positioning
    G1 Z15 F6000 S2 ; lift Z relative to current position
    G1 S1 Y445 F1800 ; move quickly to Y endstop and stop there (first pass)
    G1 S1 X445 F1800 ; move quickly to X endstop and stop there (first pass)
    G1 X-5 Y-5 F6000 ; go back a few mm
    G1 S1 X445 F360 ; move slowly to X axis endstop once more (second pass)
    G1 S1 Y445 ; then move slowly to Y axis endstop
    G90 ; absolute positioning
    G1 X188 Y-222 F6000 ; go to first bed probe point and home Z
    G30 ; home Z by probing the bed



  • Yes that looks correct.


 

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