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Lasersaur upgrade

Discussion in 'Laser Cutters' started by namit, Jan 30, 2024.

  1. namit

    namit New
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  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    You wouldn't use the old software at all anymore.

    docs:software:overview [OpenBuilds Documentation]

    1) Stock BlackBox wired up as per docs.openbuilds.com/blackbox-x32
    2) Run OpenBuilds CONTROL OpenBuilds Software: OpenBuilds CONTROL and OpenBuilds CAM
    3) As the Lasersaur doesn't have a Z axis, set $44=1 and $45=2 in Grbl Settings to configure the X first, then Y homing sequence
    4) Set things like steps per mm, acceleration, max travel, etc based on values from toolsDocs/Laser/Lasersaur_gcode/technical_details.md at master · openfab-lab/toolsDocs - by going to CONTROL > Grbl Settings tab
    Avoid changing advanced values, LaserSaur configs tend to be a little over the top. Start with our CUSTOM profile, set Steps per mm, acceleration and Max Travel. Enable Homing and Hard Limits. Configure where the limit switches are in $23 Homing Dir. Set Laser Mode $32 to Enabled. Keep it simple initially, standard configs are close.

    Lightburn can connect to the BlackBox too: docs:software:lightburn [OpenBuilds Documentation]
     
  3. namit

    namit New
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    Thanks for help have stepper motors running and figuring out mapping

    $100 - #define DEFAULT_X_STEPS_PER_MM 71.030
    $101 - #define DEFAULT_Y_STEPS_PER_MM 72.720
    $102 - #define DEFAULT_Z_STEPS_PER_MM 250.0
    $110 - #define DEFAULT_X_MAX_RATE 5000.0 // mm/min
    $111 - #define DEFAULT_Y_MAX_RATE 5000.0 // mm/min
    $112 - #define DEFAULT_Z_MAX_RATE 5000.0 // mm/min
    $120 - #define DEFAULT_X_ACCELERATION (150.0*60*60) // 10*60*60 mm/min^2 = 10 mm/sec^2
    $121 - #define DEFAULT_Y_ACCELERATION (150.0*60*60) // 10*60*60 mm/min^2 = 10 mm/sec^2
    $122 - #define DEFAULT_Z_ACCELERATION (150.0*60*60) // 10*60*60 mm/min^2 = 10 mm/sec^2
    $130 - #define DEFAULT_X_MAX_TRAVEL 1220.0 // mm NOTE: Must be a positive value.
    $131 - #define DEFAULT_Y_MAX_TRAVEL 615.0 // mm NOTE: Must be a positive value.
    $132 - #define DEFAULT_Z_MAX_TRAVEL 200.0 // mm NOTE: Must be a positive value.
    $0 - #define DEFAULT_STEP_PULSE_MICROSECONDS 10
    $2 - #define DEFAULT_STEPPING_INVERT_MASK 0
    $20/$40 - #define DEFAULT_SOFT_LIMIT_ENABLE 0 // false
    $21 - #define DEFAULT_HARD_LIMIT_ENABLE 1 // true
    $22 - #define DEFAULT_HOMING_ENABLE 1 // true
    $23 - #define DEFAULT_HOMING_DIR_MASK 1 // homing towards left/rear
    $24 - #define DEFAULT_HOMING_FEED_RATE 100.0 // mm/min
    $25 - #define DEFAULT_HOMING_SEEK_RATE 3000.0 // mm/min
    $26 - #define DEFAULT_HOMING_DEBOUNCE_DELAY 250 // msec (0-65k)
    $27 - #define DEFAULT_HOMING_PULLOFF 4.0 // mm

    Few more to do just if anyone else looking for config:

    #define DEFAULT_SPINDLE_RPM_MAX 1000.0 // rpm
    #define DEFAULT_SPINDLE_RPM_MIN 0.0 // rpm
    #define DEFAULT_DIRECTION_INVERT_MASK 0
    #define DEFAULT_STEPPER_IDLE_LOCK_TIME 255 // msec (0-254, 255 keeps steppers enabled)
    #define DEFAULT_STATUS_REPORT_MASK 0 // WPos enabled (Lightburn needs $10=0)
    #define DEFAULT_JUNCTION_DEVIATION 0.02 // mm
    #define DEFAULT_ARC_TOLERANCE 0.002 // mm
    #define DEFAULT_REPORT_INCHES 0 // false
    #define DEFAULT_INVERT_ST_ENABLE 1 // true
    #define DEFAULT_INVERT_LIMIT_PINS 0 // false
    #define DEFAULT_INVERT_PROBE_PIN 0 // false
    #define DEFAULT_LASER_MODE 1 // true
     
  4. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

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    That would be

    You do it from scratch (as its a different controller) but can borrow inspiration from the old values. Will need tweaking either way as its a different controller

    Reading the Grbl Wiki is also a good idea
     

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