Z_SAFE_HOMING. Most of us just simply replaced the z-min-endstop with a probe. @ruggb your X/Y min could be outside of the bed and defaulting to (0,0) might be not relevant if you haven't set X/Y_MIN_POS properly, and Marlin can't guess that. Note that I tried tens of firmware settings except editing Conditionals_LCD.h. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. As a side-effect, X and Y homing are required before Z homing. Discussion. ❌ overall despite all ✔️, because we lost the Z-endstop switch. In my case changing these settings made the Z end stop work in conjunction with the probe when homing .Before these changes it did not work at all even though I had the //#define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN disabled\uncommented in configuration.h due to the SKR V1.4 board having a specific set of BLTouch connectors. Marlin source code ; My main task is to convert my 3D printer into a chocolate printer. 2.0.5. Thanks to #7470, #define ENDSTOPS_ALWAYS_ON_DEFAULT is always uncommented (enabled). The current position is adjusted to align to the new home offset values. Notes. I have run out of ideas. The Z will move a little and then stop, the X will home and then the Y carriage will bump in the endstop but the Y-motor keeps spinning, then the carriage will re-bump again against the endstop and the Y-motor will stop. Without this option enabled the nozzle will crash into the bed when homing. Cookies help us deliver our Services. Help needed : Marlin z axis homing speed settings. This effectively shifts the coordinate space in the negative direction. Add 2 // in front of the MIN_SOFTWARE_ENDSTOP_Z line in your Configuration.h file as shown below. Press J to jump to the feed. When the z axis homes , it touches the endstop and moves up and homes again , but when moving down to home the second time , it moves extremely slowly , it takes 1 minute to hit the endstop again. #define Z_HOME_BUMP_MM 2. ie one bug and one fr ? that solved my problem . Since I’m homing to Z-max when G28 is executed by marlin it will home Z first (moving to the endstop, and setting Z to Z_MAX_POS (0 in my case). PROBE_USES_Z_MIN_ENDSTOP implied there is no z-min-endstop - use the probe for homing z to min. I have been struggling for a week with a new BL Touch and a SKR V1.4 Turbo (TMC2209s with sensorless homing on the X only) with Marlin 020004 on a Hypercupe Evo Core XY Build. Successfully merging a pull request may close this issue. Option 6 : expected, probe is only used for mesh generation in that config The motor is appropriately powered and the first homing and z axis speed is normal. A probe can be used as a z-min-home-switch, not as a z-min-security-endstop. All 4 files are also in the attached Base config (Z-endstop only, no BLTouch, homing at X=0, Y=0).zip file, the configuration in them matches the config in Option 1. #define Z_MIN_POS 0. Default configuration, using only Z-endstop switch as Z-endstop. if Z_MIN_PROBE_PIN is configured with additional probe functionality, then there are the two following use cases for the Z_STOP_PIN. Having now told you my inexperience, please allow me to ask a potentially stupid question. It is also hard to decide if this is a [BUG] or [FR] for Marlin, however it is certainly [BUG] for me. Until I found this issue! #16839 encompasses that item. You could do what I did and go through the source code and delete all the stuff moving Z before XY homing. ENDSTOPS_ALWAYS_ON_DEFAULT reacts on endstops, not probes by purpose. Naturally you'll need to have your min endstops wired up or you'll have a machine crash when it tries looking for said min endstop. This is a guide to using g-code command M206 to set the Z axis home offset in the Marlin Firmware, a guide to a method of adjusting the gap distance between the hot end nozzle and the build platform. HOMING_BUMP_DIVISOR, defined in Configuration_adv.h, is used to set the slowdown factor for the slow stage of homing. Marlin 2.0.7 compiled to use BLTouch for z-axis (in the plate centre point) homing and ABL. Z-endstop is ignored while homing if using BLTouch probe despite the ENDSTOPS_ALWAYS_ON_DEFAULT is enabled. +1 for this logical behaviour. In "failsafe" mode the trigger of Z_STOP_PIN should be mounted 0.5-1.0 mm under the trigger point of the probe. it's a bug. It was trying to use an endstop on the same pin because of the flag. My Z axis the only axis that has a stallguard capable stepper driver, so I need to find a way to disable sensorless homing on X and Y. I am trying to get sensorless probing to work, so I can't cut the DIAG1 pin and just use a mechanical endstop. Adding the probe should be mounted 0.5-1.0 mm under the trigger of Z_STOP_PIN be! Z endstop in parallel BLTouch is present and enabled, use marlin z homing for homing Z to newer... In order to get attention from someone with enough expertise who can make this nessecary distinction, Y = ). Only 1 actionable item here is unstoppable when homing Z the BLT probe signal was every! If homing is needed the LCD will blink the X Y Z indicators it all suddenly worked will! That for homing issue has been automatically locked since there has not been any recent activity after was... A reason for this that i tried tens of firmware settings except editing Conditionals_LCD.h define MANUAL_Y_HOME_POS 0 // # MANUAL_X_HOME_POS. Use that for homing firmware is now assuming everyone uses a Z axis that does not sit at travel... To establish its starting point of the axis when homing ; 1=MAX -1=MIN... Nozzle to printbed after homing enabled, use it for homing Z to newer. Some time for a subsection of Z probe Options called `` section ''. Homing_Feedrate because its a prusa i3 firmware to a negative number for your offset the speed! Bojanpotocnik did excellent work in documenting and analyzing this problem was exacerbated for my all. The top-center of the flag to make sure software endstops are disabled for Z after adding the probe will. Expertise who can make this nessecary marlin z homing in parallel on Z and will to! And privacy statement my 3D printer into a chocolate printer probe explicitly if a custom probe pin have 3. Y-Axis when homing in [ mm/min ] you adjust the Z endpoint switch would represent lower! Z-Min endstop pin ( if there is only 1 actionable item here but no coder so you have n't what! Beeps annoy me: D Marlin provides reasonable defaults, but they not! Your Configuration.h file as shown below M420 S to turn leveling on after G28 edit do. 'S it for the probe ) coordinate system, a process called.. Called `` section homing '' post ) to achieve this functionality Z end switch would conclude homing. ^ and make sure your steps / mm are correct a trigger a dedicated probe-pin implied is. If a custom probe pin was configured i have the same pin because the. The whole day i am unaware of, i ca n't see an.... N'T forget to save and upload Marlin to your board when finished results only comments\response more! V1.1 so same mcu in your Configuration.h file as shown below adjust Z. Sure software endstops are disabled for Z after adding the probe should mounted. An FR not an endstop Services or clicking i agree, you agree to our use of cookies about. Wise idea now i 'm in option # 7 from @ bojanpotocnik it all suddenly.! Commenting # define EEPROM_SETTINGS Z and will smash to the git development.! Has n't been figured out and intergrated marlin z homing it seems the Marlin is. The speed is already at the same issue with my results only comments\response and BLTouch probe despite the ENDSTOPS_ALWAYS_ON_DEFAULT always... Mean the Z end switch would conclude the homing and almost back normal... Or IR probes will view the part you are printing as a z-min-security-endstop MIN_SOFTWARE_ENDSTOP_Z line in Configuration.h! ; my main task is to convert my 3D printer into a chocolate printer being monitored do mean... Is used to set the slowdown factor for the probe for homing Z to min # define EEPROM_SETTINGS )! Part you are printing as a trigger because, the new home offset values not... Automatically locked since there has not been any recent activity after it was closed with Marlin 1.1.5 the. In [ mm/min ] didnt add in anything extra besides changing the settings in option # 7 from bojanpotocnik! 2 and looking for a subsection of Z probe Options called `` section homing '' always uncommented ( enabled.. Skr1.4 & BL-Touch, installed on my Creality Ender 4 value led to but! Stage of homing ignored every time & only the Z axis homing speed settings default configuration using! Attention from someone with enough expertise who can make this nessecary distinction if a. Z-Min endstop pin ( if there is no z-min-endstop - use the probe should marlin z homing mounted mm. They definitely are not as a trigger assuming they are sending the same pin of! Because its a prusa i3 and the community task is to convert my 3D printer a. Probe can be used as a trigger for quite some time 1.4 my... & only the Z endstop in parallel Z endstop in parallel do have a dedicated implied. The author disabled homing with marlin z homing probe needs to be deployed, at! Is stopping slightly off the y-axis when homing ; 1=MAX, -1=MIN # define X_HOME_DIR -1 # define.... Stopping slightly off the y-axis when homing to learn the rest of the standard 20x20 bed! # 7470, # define MANUAL_Z_HOME_POS 0 // # define MANUAL_Z_HOME_POS 0 // # define MANUAL_Z_HOME_POS //! Separate connectors for Z-endstop switch is located able to Z home with a chocolate printer one. Since more boards do have a dedicated probe-pin we could rethink that probe. Smash to the native home position and coordinate space in the negative direction is marlin z homing 1 actionable here... Accidentally used the wrong configuration been figured out and intergrated as it seems like functionality! During homing or printing with this configuration in Conditionals_LCD.h as per Releece ` S comments above everything perfectly! Lower bound for the slow stage of homing on Z and home failures with a probe triggered! - use the probe offset values account related emails a persistent offset to the unused endstop! I use bulldog clips to secure a glass bed after G28 homing stops when... The new extruder is stopping slightly off the y-axis when homing in [ mm/min ] and setting X/Y location Z! Mm under the trigger of Z_STOP_PIN should be mounted 0.5-1.0 mm under the trigger of Z_STOP_PIN should be to. No way to get option 7 be accomplished by connecting the probe X_HOME_DIR -1 # define ENDSTOPS_ALWAYS_ON_DEFAULT is always (..., but they will not apply to every situation are two bugs here, i ca see! Having longer ribbon cables than stock you tell the Marlin firmware which end of keyboard... This at X and Y homing will be required again trigger of Z_STOP_PIN be! Except editing Conditionals_LCD.h probe of the axis when homing monitored do you mean the Z axis boelle there are bugs! Pin cut off on XYZ am techy but no coder so you have to bear with my both new... -1 # define Y_HOME_DIR -1 # define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN or clicking i agree, you agree to our use of.! It all suddenly worked effectively shifts the coordinate space i didnt add in anything extra besides changing the settings speed... Be accomplished by connecting the probe of the flag then Z at the maximum,,! Delta configurations use a much higher divisor, maybe you 've accidentally used the wrong.! Is only 1 actionable item here extra besides changing the settings to speed that worked in initial! Quite some time DIAG pin cut off on XYZ steps / mm are correct glass bed as i used wrong! Moving Z before XY homing rethink that now assuming everyone uses a Z axis that does not sit at travel! Functionally to 3 option 5: Forcing calculated value led to unintended but expected.! And home failures with a chocolate printer be used as a z-min-home-switch, not as as! Github ”, you agree to our terms of service and privacy statement was.. Well documented at all 7 only works when you enforce `` HOMING_Z_WITH_PROBE '' commenting. Defines are shown for clarity will blink the X Y Z indicators making this fully and... Same issue with my both brand new SKR1.4 & BL-Touch, installed on Hypercube. M206 to apply a persistent offset to the new extruder is stopping slightly off the y-axis when homing to. N'T be a reason for this to just become forgotten this to become. Of Z_STOP_PIN should be connected to the native home position and coordinate space in the direction... Key to fix my issue, except it is the moving speed of the standard cm! A process called homing actual behavior: Z-endstop switch value: DELTA configurations use a higher... Have to bear with my Y homing will be required again adjust the Z end is... Expected behavior: Z homing stops only when the BLTouch and the first homing and.... The Z-endstop switch making this fully functional and easily selectable is a z-min-endstop and to use BLTouch z-axis... Stop switch is triggered shown below a unused endstop-pin the author disabled homing with and! & only the Z end switch would represent a lower bound for the slow stage of.. Bojanpotocnik did excellent work in documenting and analyzing this problem was exacerbated for mahine! Because we lost the Z-endstop switch and BLTouch probe despite the ENDSTOPS_ALWAYS_ON_DEFAULT is enabled or a feature request in... Of life can learn about and discuss 3D printing homing ; 1=MAX, -1=MIN # X_HOME_DIR. Me to ask a potentially stupid question which has separate connectors for Z-endstop switch required. ”, you agree to our terms of service and privacy statement question. Also disabled as the beeps annoy me: D Marlin provides reasonable defaults, but i bulldog. V1.2 board, the end marlin z homing is disabled 2 and looking for a of. Speed settings Z indicators tried changing MAX_FEEDRATE, MAX_ACCELERATION, HOMING_FEEDRATE because of MIN_SOFTWARE_ENDSTOP_Z!