Home› JGAurora A5 & A3S› Modifications & Upgrades
Please note: the forum is closed.
No new user registrations are accepted. For more info, please click here.

Z not working properly after 1.1.8c a3s update

SwarfingSwarfing Posts: 14Member
in Modifications & Upgrades
Just updated firmware to the above and it looks like the first few layers are just layering at the same level efore start moving?

Comments

  • Samuel PinchesSamuel Pinches Posts: 2,997Administrator
    Hi @Swarfing
    Would you mind posting a video? I'm not sure I understand what you're meaning. Do you happen to have mesh-bed-levelling turned on?

  • SwarfingSwarfing Posts: 14Member
    for the first few layers the z axis is not moving up. this is not due to being stuck or anything. it then continues on with the rest of the print as normal
  • SwarfingSwarfing Posts: 14Member
    I installed the firmware as per the readme within the zip without problem
  • SwarfingSwarfing Posts: 14Member
    ive noticed whilst manul move of z'd with 10mm the motors over run also with tons of noise which did not happen on original firmware
  • SwarfingSwarfing Posts: 14Member
    Can sombody tell me what the difference is between stock and these please.


    //=============================================================================
    //============================== Movement Settings ============================
    //=============

    /**
     * Default Settings
     *
     * These settings can be reset by M502
     *
     * Note that if EEPROM is enabled, saved values will override these.
     */

    /**
     * With this option each E stepper can have its own factors for the
     * following movement settings. If fewer factors are given than the
     * total number of extruders, the last value applies to the rest.
     */
    //#define DISTINCT_E_FACTORS

    /**
     * Default Axis Steps Per Unit (steps/mm)
     * Override with M92
     *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
     */
    #define DEFAULT_AXIS_STEPS_PER_UNIT   { 80, 80, 800, 100 }

    /**
     * Default Max Feed Rate (mm/s)
     * Override with M203
     *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
     */
    #define DEFAULT_MAX_FEEDRATE          { 500, 500, 15, 25 }

    /**
     * Default Max Acceleration (change/s) change = mm/s
     * (Maximum start speed for accelerated moves)
     * Override with M201
     *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
     */
    #define DEFAULT_MAX_ACCELERATION      { 1000, 500, 100, 5000 }

    /**
     * Default Acceleration (change/s) change = mm/s
     * Override with M204
     *
     *   M204 P    Acceleration
     *   M204 R    Retract Acceleration
     *   M204 T    Travel Acceleration
     */
    #define DEFAULT_ACCELERATION          800    // X, Y, Z and E acceleration for printing moves
    #define DEFAULT_RETRACT_ACCELERATION  800    // E acceleration for retracts
    #define DEFAULT_TRAVEL_ACCELERATION   1000    // X, Y, Z acceleration for travel (non printing) moves

    /**
     * Default Jerk (mm/s)
     * Override with M205 X Y Z E
     *
     * "Jerk" specifies the minimum speed change that requires acceleration.
     * When changing speed and direction, if the difference is less than the
     * value set here, it may happen instantaneously.
     */
    #define DEFAULT_XJERK                  8.0
    #define DEFAULT_YJERK                  3.0
    #define DEFAULT_ZJERK                  0.3
    #define DEFAULT_EJERK                  5.0

  • SwarfingSwarfing Posts: 14Member
    Found the info now. Observation on this I think default acceleration of 1000 compared to 300 is way to fast for these steppers. Samuael do you have an A3s with this config running at these speeds? Not sure i could tune standard drivers to run at this level.

  • Samuel PinchesSamuel Pinches Posts: 2,997Administrator
    @Swarfing  - no I do not have an A3S, but other people have tried it and told me it works. Don't be afraid to change it and make it work for you though.
  • SwarfingSwarfing Posts: 14Member
    thats travel acceleration

  • SwarfingSwarfing Posts: 14Member
    it would be good to know what they hve done to make it work
  • SwarfingSwarfing Posts: 14Member
    ok, i thought i woould take a step back and check things again with this printer. checked the vref of the steppers and all looked good? z'd on the other hand was reading smack on 0.7 so decided to push it up a bit. bingo all is good with the world and the new firmware works fine. Samuel i did have my doubts and i apologies if that came across. This is my first commercial printer and have always in the past built my own.
  • Samuel PinchesSamuel Pinches Posts: 2,997Administrator
    All good - checking the Vref would have been my next suggestions - the custom firmware is less aggressive than the stock firmware in most cases, that's part of what helps to improve the print quality. :smile:
  • SwarfingSwarfing Posts: 14Member
    I printed a money cat off last night and found print quality a lot worse. needed to turn print speed down to 85% just to get it to print. Using cura 3.6.0 with the site pla profile. Getting back into printing has been not so easy. Always used repetier before which i found easier to surf. This is making me feel like a real noob having to learn all over again.
    Can anybody else share any changes they have made please, settings etc
  • Samuel PinchesSamuel Pinches Posts: 2,997Administrator
    edited November 2018
    See here for a good starting point: https://jgmakerforum.com/discussion/comment/2433#Comment_2433
    Post edited by Samuel Pinches on
  • SwarfingSwarfing Posts: 14Member
    update

    after a good play over the last few days i've settled on these settings in marlin. Still need to play with a Cura a bit more but seems to print not too bad as long as i dont go above 40mm/sec at 210 for pla. I also tuned my steps in to get bang on the correct meassurement in X and Y. Anybody else run close to these settings?

    //=============================================================================
    //============================== Movement Settings ============================
    //=============

    /**
     * Default Settings
     *
     * These settings can be reset by M502
     *
     * Note that if EEPROM is enabled, saved values will override these.
     */

    /**
     * With this option each E stepper can have its own factors for the
     * following movement settings. If fewer factors are given than the
     * total number of extruders, the last value applies to the rest.
     */
    //#define DISTINCT_E_FACTORS

    /**
     * Default Axis Steps Per Unit (steps/mm)
     * Override with M92
     *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
     */
    #define DEFAULT_AXIS_STEPS_PER_UNIT   { 82.05128, 82.05128, 800, 100 }

    /**
     * Default Max Feed Rate (mm/s)
     * Override with M203
     *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
     */
    #define DEFAULT_MAX_FEEDRATE          { 400, 400, 15, 25 }

    /**
     * Default Max Acceleration (change/s) change = mm/s
     * (Maximum start speed for accelerated moves)
     * Override with M201
     *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
     */
    #define DEFAULT_MAX_ACCELERATION      { 600, 600, 100, 1000 }

    /**
     * Default Acceleration (change/s) change = mm/s
     * Override with M204
     *
     *   M204 P    Acceleration
     *   M204 R    Retract Acceleration
     *   M204 T    Travel Acceleration
     */
    #define DEFAULT_ACCELERATION          400    // X, Y, Z and E acceleration for printing moves
    #define DEFAULT_RETRACT_ACCELERATION  500    // E acceleration for retracts
    #define DEFAULT_TRAVEL_ACCELERATION   400    // X, Y, Z acceleration for travel (non printing) moves

    /**
     * Default Jerk (mm/s)
     * Override with M205 X Y Z E
     *
     * "Jerk" specifies the minimum speed change that requires acceleration.
     * When changing speed and direction, if the difference is less than the
     * value set here, it may happen instantaneously.
     */
    #define DEFAULT_XJERK                  8.0
    #define DEFAULT_YJERK                  3.0
    #define DEFAULT_ZJERK                  0.3
    #define DEFAULT_EJERK                  5.0

    Thanked by 1Samuel Pinches
  • SwarfingSwarfing Posts: 14Member
    Forgot to say I also had to ditch the crappy couplers for solid.
  • Samuel PinchesSamuel Pinches Posts: 2,997Administrator
    Thanks for sharing your settings! Please remember to check your x y steps both for 20mm cube and for 40mm cubes. You may find there is a constant offset and a length dependant scaling.
    Thanked by 1Swarfing
Sign In or Register to comment.