Anycubic Mega Zero Allen Key Probe

thingiverse

Credit for this inspiration goes to Derokero, https://www.thingiverse.com/thing:4111545 This is implemented on an AnyCubic Mega Zero printer using the supplied 2.4mm Allen-key on a SKR 1.4 Turbo board. Microswitch is wired to the servo probe port. It should work on the stock controller board but you will need the configuration to get the required memory space. Deviation test gave 0.001739. Not too shabby for a 20c microswitch. Marlin Configuration.h settings: #DEFINE AUTO_BED_LEVELING_BILINEAR #DEFINE FIX_MOUNTED_PROBE - To automatically reload bed mesh data is reloaded after G28 define RESTORE_LEVELING_AFTER_G28 define LCD_BED_LEVELING // Useful to do an initial bed level define LEVEL_BED_CORNERS if ENABLED(LEVEL_BED_CORNERS) define LEVEL_CORNERS_INSET 15 // (mm) An inset for corner leveling define LEVEL_CORNERS_Z_HOP 5.0 // (mm) Move nozzle up between corners define LEVEL_CORNERS_HEIGHT 0.0 // (mm) Z height of nozzle at leveling points define LEVEL_CENTER_TOO // Move to the center after the last corner - optional endif // 5x5 points, 4x4 or 3x3 works, use higher if bed is uneven define GRID_MAX_POINTS_X 5 Disable this if you use the dedicated PROBE connection define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN If you don't have a dedicated PROBE port. You can either wire the switch (use Normally Closed NC connection) in series with the Z Limit switch. For this config, enable this. define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN //These are for my printer, you will need to measure this on your printer define NOZZLE_TO_PROBE_OFFSET { -38, 0.5, -1.5 } Change as preferred. define MIN_PROBE_EDGE 5 // Optional, increases accuracy. define MULTIPLE_PROBING 2 // These work on my printer using the supplied 2.4mm allen key. Will be different if your allen key differs. define Z_CLEARANCE_DEPLOY_PROBE 10 // Z Clearance for Deploy/Stow define Z_CLEARANCE_BETWEEN_PROBES 3 // Z Clearance between probe points define Z_CLEARANCE_MULTI_PROBE 2 // Z Clearance between multiple probes define Z_AFTER_PROBING 5 // Z position after probing is done // For M851 give a range for adjusting the Z probe offset define Z_PROBE_OFFSET_RANGE_MIN -20 define Z_PROBE_OFFSET_RANGE_MAX 20 // Before deploy/stow pause for user confirmation. Pauses for you to deploy/stow the allen key. DO NOT OMIT this. define PAUSE_BEFORE_DEPLOY_STOW Marline configuration_adv.h settings: // Useful to adjust the Z for the first layer. Note that this feature is not available on A4988 drivers. define BABYSTEPPING define BABYSTEP_ZPROBE_OFFSET Add this line to your slicer to load the leveling mesh before start of print. M420 S1