If your Z_MIN_WHILE_PROBING were implemented, if the printer were powered off (or Marlin crashed, etc) with the head at any Z distance greater than Z_MIN_WHILE_PROBING there would be no mechanism to begin a print on the next poweron, since Marlin will never move in the negative Z axis except during G28 probing and after probing completes successfully. Homing feed rate. If you use the old constants, the sanity check upon compiling will throw an assertion that these constants are not in use anymore and should be removed. For X and Y you have to … I'm currently manually changing the G-Code Z offset to a negative value but reading through forums it seems like quite a few users have asked about this same issue of having a negative Z-Offset to setup their ABL. Reply Quote. So thats good. Because ‘below the bed’ is negative space, the Z-offset value is negative because we are effectively saying that is where the bed needs to be. control HAS_MICROSTEPS M350 - Set micro-stepping. dissidence. Use M92 to set the steps-per-unit for one or more axes. Trying G1 Z0 will show the Z probe endstop is hit and Z won't go any lower. Il y avait du mieux, mais la buse était toujours trop haute par rapport au plateau Vidéo du résultat To keep things this way, we finance it through advertising and shopping links. More . #define NUM_AXIS 4. 3. Loading More Posts. It is the total number of axis (3) plus the number of extruders (1). * If your firmware isn’t setup to allow negative z movement (#define min_software_endstops false) you will need to measure/estimate the negative value to enter with the M851 command. However, this can be disabled in the firmware configuration. When you are setting the Z-offset, you are actually telling Marlin that the bed is lower then what was probed so you can properly place the nozzle on the bed. Most printers do not allow you to travel to negative Z values. In Duet Web Control, go to Settings -> System Editor and edit the config.g file. Assumptions: The value of PROBE_OFFSET_FROM_EXTRUDER is set at -2 in Marlin configuration.h if it … In Marlin, the option is called software endstops. With this option enabled, by default Marlin will use the Z_MIN_PROBE_PIN specified in your board’s pins file (usually the ... (mm) to raise the probe (or lower the bed). In theory software endstops + my 5mm bed springs should still prevent a (major) crash from LCD or pronterface controls I printed a new mount for my sensor that was 1mm closer (so my target offsets were in the 1.2 - 1.7mm range instead of 0.2 - 0.7mm I can probably fix all that by moving end stops or reversing axes but it doesn’t solve the only searches 1 cm problem. NOTE: Remember the -1.4, -1.5 and -1.6 are just examples , yours will be different If your firmware isn’t setup to allow negative z movement (#define min_software_endstopsfalse) you will need to measure/estimate the negative value to enter with the M851 command.. Calibrating BLTouch from LCD display controls. Any thoughts? Also, it's good to enable Z safe homing, so it homes at the center of the bed (Marlin is clever enough to know that means the probe is at the center, not the actual nozzle) First, start with -2.0mm offset, then you'll be able to edit the offset right in the printer's menus, mine's currently at -1.850mm or so. Link to post Share on other sites. Noter la valeur affichée de la position du Z sur l'écran du boitier (additionner la valeur absolue affichée à l'épaisseur de la cale utilisée) 11. There's no option on the Ender 3 itself now, nor can I find the correct option in config.h or backend of TH3DUF. However it is also told that the z end stop is at the minimum and it searches upwards for it. Note that this can be a little confusing because the Z offset in the Configuration.h file is a negative number, but it is shown as a positive number on the LCD. The numbers indicate I have a CONCAVE plane. 21.5k 1 1 gold badge 27 27 silver badges 47 47 bronze badges. I would like to offset my z-axis home but can't for the life of me find the option to do so. Set PID values for the heated bed. Printables; Buyer's Guides; Basics; Reviews; Pro . Link to post Share on other sites. Modifié ... Mais il est impossible de mettre des valeurs négatives!!!! ça, pas de soucis ça fonctionne, mais voulant automatiser le truc en passant par un gcode spécifique à chaque filament que j'aurai plus à retoucher, j'ai peur que si j’enchaîne 2 impressions ça me double le Z-offset. misan Reply Quote. Example M666 X2.1 Y3.3 Z2 or M666 X-2.1 Y-3.3 Z-2 And there isn't anything I can do for Center Z0.7? Option is called software endstops to me using the Marlin 1.0 beta X-2.1... This too endstop is hit and Z wo n't go any lower rapport au plateau du... Printer, save the change in configuration.h, upload the firmware, reconnect and... 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