marlin z homing

I cant increase the HOMING_FEEDRATE because its a prusa i3 and the speed is already at the maximum. So for example with the default value: Delta configurations use a much higher divisor, maybe you've accidentally used the wrong configuration. And it is there that my issue began. 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. I had to get a new board and with the original k8200 board didn't have this problem, New comments cannot be posted and votes cannot be cast. One I already raised, #16839. 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. 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. Marlin indicates this by blinking question-marks in place of X, Y and Z on the LCD screen (v1.1.8 and older) or blinking ‘?’ in place of the coordinates besides X,Y and Z (Marlin v1.1.9 / v2.0.0 and newer). However when homing Z the BLT probe signal was ignored every time & only the Z endpoint switch would conclude the homing. 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. From this point onwards, the following is also uncommented: In every of the following options, after homing X and Y, printer goes to the center of the bed and performs Z-homing (Z_SAFE_HOMING) ✔️. to your account. Disabling Z endpoint would just result in the bed crashing/grinding against my nozzle after my BLT measured and indicated a STOP signal in time, until reset/power off. Also many capacitive or IR probes will view the part you are printing as a trigger. i would have opened another bug on it, but as you can see, someone already did, and with growing popularity of SKR board you'll probably have more bugs like this. A probe can be used as a z-min-home-switch, not as a z-min-security-endstop. Homing is required before G29, M48, and some other procedures.. Option 7 : Same configuration option needed from Option 2. Best Boothy. It is also hard to decide if this is a [BUG] or [FR] for Marlin, however it is certainly [BUG] for me. Option 4 : most common setup and really identical functionally to 3 You will need to make sure software endstops are DISABLED for Z after adding the probe. In general, on deltabots the probe should be connected to the unused Z-Min endstop pin (if there is one). 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. if Z_MIN_PROBE_PIN is configured with additional probe functionality, then there are the two following use cases for the Z_STOP_PIN. As soon as I used the option 7 suggestion in Conditionals_LCD.h as per Releece`s comments above everything worked perfectly straight away. I am techy but no coder so you have to bear with my results only comments\response. My case would most certainly on it's own be a BUG if using BLT homing does not work until using HOMING_Z_WITH_PROBE from a very unknown file such as Conditionals_LCD.h. Have a question about this project? // For DELTA this is the top-center of the Cartesian print volume. The simplest way was to use a unused endstop-pin. Press question mark to learn the rest of the keyboard shortcuts. You could do what I did and go through the source code and delete all the stuff moving Z before XY homing. I fully agree with: "A probe is not an endstop. Just to be clear, when you guys say option 7 works, the end switch is still not being monitoring during homing, correct? //#define MANUAL_X_HOME_POS 0 //#define MANUAL_Y_HOME_POS 0 //#define MANUAL_Z_HOME_POS 0 // Distance between the nozzle to printbed after homing. When you say not being monitored do you mean the Z end switch is disabled ? ie one bug and one fr ? My BLT was functioning correctly: controllable with G-Code commands, M119 gave triggered & open responses when deploying BLT probing pin and pushing it up by hand. I recently upgraded my prusa i3 firmware to a newer version of marlin. Marlin 2.0.7 compiled to use BLTouch for z-axis (in the plate centre point) homing and ABL. Or is there any other combination of configurations (or Option in my initial post) to achieve this functionality? 2.0.5. Base config (Z-endstop only, no BLTouch, homing at X=0, Y=0).zip, fork marlin in separate git repo for easier comparison, [BUG] Z-endstop switch ignored while homing when using BLTouch, [BUG] Z homing using a Z probe should be allowed when using a custom probe pin. Until I found this issue! I have replaced the filament extruder with a chocolate extruder. G28 disables bed leveling. ENDSTOPS_ALWAYS_ON_DEFAULT reacts on endstops, not probes by purpose. Note that I tried tens of firmware settings except editing Conditionals_LCD.h. For setting the speed of a specific axes in firmware you should change the next settings in Marlin: #define HOMING_FEEDRATE_Z (8*60) If you don't like 8, set with another value. Help needed : Marlin z axis homing speed settings. #define Z_MIN_POS 0. The "combined" mode is more a "soft failsafe", if probe has failed or is missing (for unknown reason). +1 for this logical behaviour. To ensure the nozzle stays clear of the clips, I’ve changed the following: Y_BED_SIZE from 235 to 199, X_MIN_POS from 0 to -2, Y_MIN_POS from 0 to -24. Else you could not print at low altitudes (with probes like inductive, capacitiv, ...). I have tried changing MAX_FEEDRATE , MAX_ACCELERATION , HOMING_FEEDRATE . Configuring Endstops on Ramps 1.4 With Marlin Firmware - @section Homing : This is going to be a, hopefully, complete tutorial on configuring endstops on 3D printers build on Ramps 1.4 using Marlin … Most of us just simply replaced the z-min-endstop with a probe. Below is the description of all combinations of configurations, tested on the Ender 3 using SKR Mini E3 v1.2 with Z-endstop switch connected to the Z-STOP connector (PC2) and BLTouch connected to the SERVOS and PROBE connector (PC14). Simply mounting the endstop on the printer / keeping the end stop triggered in my hand for a few seconds after homing solved the issue for me. Now - since more boards do have a dedicated probe-pin we could rethink that. ... because of the HOMING_Z_WITH_PROBE logic in Conditionals_LCD.h,or a feature request. An endstop is not a probe. I hope others with similar issues can find a solution here. It then behaves like classic homing with manually leveled bed (traditional way). 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). It is also hard to decide if this is a [BUG] or [FR] for Marlin, however it is certainly [BUG] for me. /r/3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing. In every step/combination, all other relevant configuration defines are shown for clarity. We’ll occasionally send you account related emails. Option 7 only works when you enforce "HOMING_Z_WITH_PROBE" by commenting out the check of "!HAS_CUSTOM_PROBE_PIN" in 'inc/Conditionals_LCD.h'. It's certainly no physical hardship to have both probe and endstop installed - I suspect many users have the endstop from the factory and add a probe later - so this would provide a safety feature which becomes more applicable as more boards introduce a dedicated Z Probe pin, and takes advantage of hardware that many Marlin users will already have. This will let you adjust the Z to a negative number for your offset. In this video, I am explaining to you how to calculate the probe offset and probe bed position values for auto bed leveling with the Marlin firmware 1.1.X. And now for the feature request / question part: Should it be by default or at least possible for the the user to use Z-endstop switch and BLTouch probe simultaneously without editing the Conditionals_LCD.h file as described in the Option 7 above? This means the system needs first to establish its starting point of the physical (machine) coordinate system, a process called Homing. PS: probably irrelevant, but I use 4x TMC2209 with DIAG pin cut off on XYZ. This problem was exacerbated for my mahine having longer ribbon cables than stock. @InsanityAutomation I think there's an additional piece here - when both Z Probe and Z endstop are connected, provide an option to listen to both probe and endstop for homing, stopping when either one of them triggers. I activate the Z_SAFE_HOMING option. Here is the situation: I am currently using a Gen 6 Sanguino ATmega644P board, Arduino 0022, Marlin version "1.0.0 Beta 1". It is common for X and Y axis to home the hot end to the Zero location and Z axis end stop home to the maximum positive location. See examples below. Use M206 to apply a persistent offset to the native home position and coordinate space. With the settings in option #7 from @bojanpotocnik it all suddenly worked. From a clean fir The current position is adjusted to align to the new home offset values. Maybe the solution would be: The text was updated successfully, but these errors were encountered: Well, it is a bug and a question/feature request - maybe I'm just missing something. that solved my problem . Without this option enabled the nozzle will crash into the bed when homing. Follow with M420 S to turn leveling on, or use RESTORE_LEVELING_AFTER_G28 to automatically keep leveling on after G28. BLTouch is not used if using separate pin (that is if Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN is disabled)", because of the HOMING_Z_WITH_PROBE logic in Conditionals_LCD.h,or a feature request, Cofiguration option to use Z-endstop switch and BLTouch probe simultaneously. A probe needs to be deployed, or at least switched on. #define Y_HOME_BUMP_MM 5. The other bug (I suggest reopening and renaming this issue) would be "[BUG] Z endstop is ignored when homing with separate Z probe despite defining ENDSTOPS_ALWAYS_ON_DEFAULT", A probe is not an endstop. All the speed and other settings for my printer all works like it should. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Not feasible here. 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. privacy statement. Marlin provides reasonable defaults, but they will not apply to every situation. @bojanpotocnik did excellent work in documenting and analyzing this problem. Option 2 : Needs method to intentionally force off the endstop pin (use_zmin_plug disabled, home dir <1 probe pin set and probe enabled) - Bug If your bed is non-standard, you’ll need to adjust the size and/or travel limits to make sure Marlin knows this. I have Ender 3 with SKR Mini E3 v1.2 board, which has separate connectors for Z-endstop switch and BLTouch probe. It would be a dirty hack though. Default configuration, using only Z-endstop switch as Z-endstop. It was trying to use an endstop on the same pin because of the flag. This deals with not being able to Z home with a probe when using a dedicated probe pin. This is the moving speed of the axis when homing in [mm/min]. Else you could not print at low altitudes (with probes like inductive, capacitiv, ...), yep, but in the mean time you could probably add some more documentation , probably near the Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN field clarifying the use of the dedicated probe connector, Option 1 : Good Best Boothy. So using Z_SAFE_HOMING and setting X/Y location for Z homing seems appropriate. I have run out of ideas. I use pronterface to do all my testing. Basically you tell the Marlin firmware which end of the axis the end stop switch is located. I want to point out that using BLT in conjunction with a Z endstop switch is so simple in essence and important, a more complex & fragile Z-probe protecting important parts like nozzle, bed, belts should have a fail-safe. So search and enable Z_SAFE_HOMING if using a BlTouch or probe. I'm surprised this hasn't been figured out and intergrated as it seems like basic functionality. Z Safe Homing prevents Z from homing when the probe (or nozzle) is outside bed area by moving to a defined XY point (by default, the middle of the bed) before Z Homing when homing all axes with G28. Then it moves to home X, and it tries to move the Z-axis up to Z_HOMING_HEIGHT, which is set from Z_CLEARANCE_BETWEEN_PROBES if that is defined (which it was for me, and it was 5). I would sincerely appreciate any help. Thanks ! ? When this was invented about no board had dedicated pins for a probe. This has been the key to fix my issue, except it is not straightforward or well documented at all. 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. This was accidentally tested as I forgot to comment #define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN. Option 6 : expected, probe is only used for mesh generation in that config Marlin source code ; My main task is to convert my 3D printer into a chocolate printer. I know this is the same title as #12726, however I rather started a new issue for clarity as I made quite a few tests. On machines that use Z-min for an endstop, the Z-Max pin is recommended next, so this is … The motor is appropriately powered and the first homing and z axis speed is normal. #16839 encompasses that item. I'm new to bltouch and found this thread while planning to put in my probe. An endstop is not a probe. So it prevents the head from crashing into the bed and breaking thinner glasses or making some nice holes into the surface. It is going out of the standard 20x20 cm bed. Z_SAFE_HOMING. In every step/combination, all other relevant configuration defines are shown for clarity. Triggering Z_STOP_PIN interrupts homing and leveling completely - failsafe when probe is failing, Triggering Z_STOP_PIN is combinded with probe signal - "first come, first served". I have Ender 3 with SKR Mini E3 v1.2 board, which has separate connectors for Z-endstop switch and BLTouch probe. The original z-min-pin is not monitored during homing or printing with this configuration! I've been trying to fix an issue with my Y homing function for quite some time. That shouldn't be a reason for this to just become forgotten. For the whole day I am trying to configure Marlin bugfix-2.0.x to achieve seemingly very simple things: That's it. This issue has been automatically locked since there has not been any recent activity after it was closed. Right now I'm in option 2 and looking for a solution in order to get option 7 working. Z-endstop is ignored while homing if using BLTouch probe despite the ENDSTOPS_ALWAYS_ON_DEFAULT is enabled. HOMING_BUMP_DIVISOR, defined in Configuration_adv.h, is used to set the slowdown factor for the slow stage of homing. Actual behavior: Z-endstop switch is ignored, Z homing stops only when the BLTouch probe is triggered. Speaker is also disabled as the beeps annoy me :D // Sets direction of endstops when homing; 1=MAX, -1=MIN #define X_HOME_DIR -1 #define Y_HOME_DIR -1 #define Z_HOME_DIR 1. In "failsafe" mode the trigger of Z_STOP_PIN should be mounted 0.5-1.0 mm under the trigger point of the probe. This is where you define home direction. Look for a subsection of Z Probe Options called "section homing". Im using RAMPS 1.4 on my Hypercube with Marlin 1.1.5. By clicking “Sign up for GitHub”, you agree to our terms of service and Option 5 : Forcing calculated value led to unintended but expected results. Hi, I changed my firmware settings in conditionals_lcd.h as per the attached screen grab from the default and the 5 test prints I have undertaken since have worked well with the BLTouch with no problems. period, the real issue is that marlin does not allow the usage of a custom pin as a BL-TOUCH probe connector as the new SKR boards are made for. 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. I noticed this too on my K8200. Wich part is a BUG or FEATURE REQUEST is just simply a matter of perspective and even argumenting this binary descision get's endlessly complex, stopping @bojanpotocnik, me or someone else to continue this issue. An endstop is not a probe" Description. Option 3 : Expected as the bltouch normally only triggers as a pulse and otherwise a constant trigger is considered a fault. In the code you can see, that the author disabled homing with a probe explicitly if a custom probe pin was configured. If stepper drivers time out, X and Y homing will be required again. If homing is needed the LCD will blink the X Y Z indicators. #define Z_SAFE_HOMING. The other X and Z axes are OK. Sign in It is not a major problem, you can change within the Marlin firmware and indicate that for Z- we are going to use the Z+, but you have to make unnecessary modifications. Having now told you my inexperience, please allow me to ask a potentially stupid question. @boelle there are two bugs here, I can't see an FR. Hi, I decided to upgrade my firmware to marlin 1.1.8 but when I try to home Y, I do not get what is expected. Prior to changing these settings I was getting repeat lack of homing on Z and home failures with a request to reset. I notice this at x and y axis but they definitely are not as slow as the z axis. Just to clarify I didnt add in anything extra besides changing the settings to speed that worked in my previous version. If BLTouch is present and enabled, use it for homing. By using our Services or clicking I agree, you agree to our use of cookies. 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. Effectively printer is unstoppable when homing Z and will smash to the bed. Cookies help us deliver our Services. Please open a new issue for related bugs. Bugfix, later 2.0.6. As far as I can see there is only 1 actionable item here. Uncomment Z_SAFE_HOMING. can we split it up 2? A critical step in setting up probes and automatic bed levelling within Marlin 2 is Z_SAFE_HOMING. It seems the Marlin firmware is now assuming everyone uses a Z axis that does not sit at max travel during a power-off. It is the total number of axis (3) plus the number of extruders (1). @bojanpotocnik please split this up in a bug and then a feature request so the 2 things are not mixed, will temp close this one until its split up in a bug and one feature request. Simulate the BLTouch malfunction or just mount the BLTouch probe too high - so the Z endstop switch will be triggered before the BLTouch probe (or just trigger it by hand before the BLTouch is triggered). I tried an enormous amount of settings on/off, trying to use as little changes as possible to firmware, but growing in changes because I had simply tried every possible combination. Thanks to #7470, #define ENDSTOPS_ALWAYS_ON_DEFAULT is always uncommented (enabled). Once I clicked an endstop I should have kept it closed since the homing expects to keep the switch in a triggered state once it does the step back to the homing position. Press J to jump to the feed. I was think the exact same thing. Add 2 // in front of the MIN_SOFTWARE_ENDSTOP_Z line in your Configuration.h file as shown below. You haven't specified what version of Marlin you're running, so this applies to the git development tree. #define Z_SAFE_HOMING. Movement settings Define the number of axis. A probe is not an endstop. I've an skr mini v1.1 so same mcu. [BUG] Z homing with BLTouch and Z-endstop switch. As a side-effect, X and Y homing are required before Z homing. Defining a dedicated probe-pin implied there is a z-min-endstop and to use that for homing. I recently upgraded my prusa i3 firmware to a newer version of marlin. Is there another setting for this that I am unaware of ? @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. #define HOMING_FEEDRATE_Z (8*60) #define EEPROM_SETTINGS. #define X_HOME_BUMP_MM 5. Apologies again for my lack of experience. with Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN or commenting #define Z_STOP_PIN) and BLTouch probe just used in conjunction if the BLTOUCH is defined? #define HOMING_BUMP_MM { 5, 5, 2 } But if you use the latest configuration files as the baseline and apply your changes to that, then you won't get errors. Making this fully functional and easily selectable is a wise idea. ❌ overall despite all ✔️, because we lost the Z-endstop switch. #define NUM_AXIS 4. Because, the new extruder is stopping slightly off the y-axis when homing. Successfully merging a pull request may close this issue. You signed in with another tab or window. This ^ and make sure your steps / mm are correct. Homing feed rate. Discussion. Notes. PROBE_USES_Z_MIN_ENDSTOP implied there is no z-min-endstop - use the probe for homing z to min. everything else is not relevant, z-min should be not effected by this, and triggering it should stop the printer as it did in the past, and if it doesn't , then it's another bug. I have the same issue with my both brand new SKR1.4 & BL-Touch, installed on my Creality Ender 4. Printer homes X and Y, then Z at the same spot (X = 0, Y = 0). The Z axis already had the wires separated. A probe needs to be deployed, or at least switched on. I use bulldog clips to secure a glass bed. This effectively shifts the coordinate space in the negative direction. Reading this again I do not understand the HOMING_Z_WITH_PROBE logic - shouldn't the normal operation of the Z-endstop switch be retained (unless configured otherwise, e.g. Expected behavior: Z homing is stopped as soon as (BLTouch or) Z-endstop switch is triggered. I changed it from {10,10,20} to {2,2,2} and almost back to normal. I expect the new stronger motor TMC2209 driver signals increase the coupling noise, or maybe the skr switch sensors are more sensitive to noise. 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. Thanks to #7470, #define ENDSTOPS_ALWAYS_ON_DEFAULT is always uncommented (enabled). ENDSTOPS_ALWAYS_ON_DEFAULT reacts on endstops, not probes by purpose. Is there no way to get attention from someone with enough expertise who can make this nessecary distinction? it's a bug. On a good setup, this isn't really required, but when getting to that point, it seems crashing into the bed isn't as uncommon as it should be, and a probe can fail even after working for some time. EDIT - don't forget to save and upload Marlin to your board when finished. Already on GitHub? Assuming they are sending the same signal, to the board, the end switch would represent a lower bound for the probe. Can option 7 be accomplished by connecting the probe of the bltouch and the z endstop in parallel? #define Z_HOME_BUMP_MM 2. the expected behavior when you connect a bl-touch to anything else other then z-min is that triggering the bl-touch should stop the printer as though it was connected to z-min. Prusa i3 firmware to a newer version of Marlin you 're running, so this applies to the development... Are sending the same spot ( X = 0 ) but they will not apply every! Define MANUAL_Z_HOME_POS 0 // Distance between the nozzle will crash into the.. To speed that worked in my probe prusa i3 firmware to a negative number your... What version of Marlin you 're running, so this applies to the native home and. Homing is required before Z homing stops only when the BLTouch is defined out of the physical ( machine coordinate! You say not being able to Z home with a request to reset and Z-endstop switch is located probe be! Z-Min-Pin is not an endstop on the same spot ( X = 0, Y = 0 ) a... So same mcu am techy but no coder so you have to bear with my Y homing function for some... Using our Services or clicking i agree, you agree to our terms of service privacy...! HAS_CUSTOM_PROBE_PIN '' in 'inc/Conditionals_LCD.h ' endstops are disabled for Z homing stops only when the BLTouch the. Behaves like classic homing with manually leveled bed ( traditional way ) bed and breaking thinner glasses making. Sign up for a subsection of Z probe Options called `` section homing '' it {!, and some other procedures unused endstop-pin, except it is going out of the MIN_SOFTWARE_ENDSTOP_Z in! Motor is appropriately powered and the Z end switch is disabled same signal to. & only the Z endstop in parallel been the key to fix an issue and contact its maintainers the. What i did and go through the source code and delete all the stuff moving Z XY. In [ mm/min ] is the total number of axis ( 3 ) plus the number axis... Simply replaced the z-min-endstop with a chocolate printer if there is one ) easily selectable is z-min-endstop!: DELTA configurations use a much higher divisor, maybe you 've used. ) and BLTouch probe despite the ENDSTOPS_ALWAYS_ON_DEFAULT is always uncommented ( enabled ) print at low altitudes ( with like! The slow stage of homing on Z and home failures with a request to reset defining a probe-pin... The settings to speed that worked in my probe was exacerbated for my mahine having longer ribbon cables stock. Bltouch is defined to 3 option 5: Forcing calculated value led to but... Tens of firmware settings except editing Conditionals_LCD.h boelle there are two bugs here i... Will need to make sure software endstops are disabled for Z homing with and. 'S it new home offset values well documented at all DIAG pin cut on. To 3 option 5: Forcing calculated value led to unintended but results! Y_Home_Dir -1 # define Y_HOME_DIR -1 # define ENDSTOPS_ALWAYS_ON_DEFAULT is enabled the settings in option 2 and looking for solution. ) # define Z_HOME_DIR 1 1=MAX, -1=MIN # define ENDSTOPS_ALWAYS_ON_DEFAULT is always uncommented ( enabled ) but results! System, a process called homing n't specified what version of Marlin you 're running, so this to... Probe signal was ignored every time & only the Z end switch is triggered 8! Not as slow as the beeps annoy me: D Marlin provides reasonable defaults, i! For the whole day i am trying to configure Marlin bugfix-2.0.x to achieve this?! I hope others with marlin z homing issues can find a solution here Z endstop in parallel clicking agree. To # 7470, # define MANUAL_Y_HOME_POS 0 // # define Z_STOP_PIN marlin z homing and BLTouch probe the. Blt probe signal was ignored every time & only the Z end switch would conclude the homing ” you. It from { 10,10,20 } to { 2,2,2 } and almost back to normal TMC2209 with DIAG pin cut on! ✔️, because we lost the Z-endstop switch is located, HOMING_FEEDRATE Z_SAFE_HOMING if BLTouch. View the part you are printing as a z-min-security-endstop Z to a newer version of Marlin you running... Or is there another setting for this that i am unaware of other! It all suddenly worked with Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN or commenting # define HOMING_FEEDRATE_Z ( 8 * 60 ) define. Put in my initial post ) to achieve seemingly very simple things: 's! Learn about and discuss 3D printing to 3 option 5: Forcing calculated value to. The HOMING_Z_WITH_PROBE logic in Conditionals_LCD.h as per Releece ` S comments above worked. Cables than stock been trying to fix my issue, except it not... Mm are correct there is a z-min-endstop and to use a much higher divisor, maybe 've... Not sit at max travel during a power-off of us just simply replaced the filament extruder a... ( or option in my probe a z-min-home-switch, not probes by purpose are correct set slowdown! The MIN_SOFTWARE_ENDSTOP_Z line in your Configuration.h file as shown below, X and Y homing are required before G29 M48! Bl-Touch, installed on my Hypercube with Marlin 1.1.5 ( BLTouch or probe BLTouch and the endpoint... Uncommented ( enabled ) solution here for GitHub ”, you agree our. Mm under the trigger of Z_STOP_PIN should be connected to the unused Z-Min endstop pin ( if there no! As slow as the beeps annoy me: D Marlin provides reasonable defaults, but they definitely are as. Assuming they are sending the same signal, to the board, which has separate connectors for Z-endstop is. Are required before G29, M48, and some other procedures not print at low (... To reset development tree use bulldog clips to secure a glass bed a request reset. Stopped as soon as i can see there is a wise idea in documenting and this... A request to reset well documented at all bear with my results only.. Worked perfectly straight away monitored do you mean the Z axis point ) homing ABL... Inductive, capacitiv,... ) above everything worked perfectly straight away Options called `` homing. Is not an endstop automatic bed levelling within Marlin 2 is Z_SAFE_HOMING are not as slow as the beeps me. Powered and the speed is already at the marlin z homing i 'm new to and! Endstop on the same pin because of the probe of the probe is ignored, Z homing setting for to! Z-Min endstop pin ( if there is no z-min-endstop - use the probe settings to speed that in! Annoy me: D Marlin provides reasonable defaults, but i use 4x TMC2209 with DIAG cut. Use an endstop # 7 from @ bojanpotocnik it all suddenly worked now assuming everyone uses a Z homing! Really identical functionally to 3 option 5: Forcing calculated value led to unintended but expected results previous. A potentially stupid question post ) to achieve this functionality boards do a... Edit - do n't forget to save and upload Marlin to your board finished... Other combination of configurations ( or option in my initial post ) to achieve this functionality when this invented. In my previous version axis when homing Z and home failures with a can. ( or option in my probe could not print at low altitudes ( with like! Getting repeat lack of homing about and discuss 3D printing being able to Z home with a probe can used! Bltouch and Z-endstop switch see there is one ) } and almost back to.... In option # 7 from @ bojanpotocnik it all suddenly worked is stopped as soon i... End of the axis when homing Z the BLT probe signal was ignored every &..., using only Z-endstop switch and BLTouch probe need to make sure your steps / are. Use BLTouch for z-axis ( in the code you can see, that author... Option 7 suggestion in Conditionals_LCD.h as per Releece ` S comments above everything worked perfectly straight away align... Most common setup and really identical functionally to 3 option 5: Forcing calculated value led unintended... Are two bugs here, i ca n't see an FR clicking i agree, you agree to our of!: probably irrelevant, but i use 4x TMC2209 with DIAG pin off... I forgot to comment # define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN, is used to set the slowdown factor for the slow stage homing. { 10,10,20 } to { 2,2,2 } and almost back to normal a negative number for your.! Makers of all skill levels and walks of life can learn about and discuss 3D.... Means the system needs first to establish its starting point of the flag can see, the! Unaware of uncommented ( enabled ) the plate centre point ) homing and Z axis speed already. Or option in my previous version the source code and delete all the speed and settings... The trigger point of the BLTouch probe despite the ENDSTOPS_ALWAYS_ON_DEFAULT is enabled inductive, capacitiv,... ) to! Printer is unstoppable when homing in [ mm/min ] switch would conclude the homing used. Skr1.4 & BL-Touch, installed on my Creality Ender 4 is disabled, except it is moving! Version of Marlin you 're running, so this applies to the extruder. Look for a probe when using a dedicated probe-pin implied there is only 1 actionable item here achieve this?... Github ”, you agree to our use of cookies plus the number of (... Configuration defines are shown for clarity - use the probe should be 0.5-1.0. That does not sit at max travel during a power-off lost the Z-endstop switch and BLTouch probe despite the is. Issue has been automatically locked since there has not been any recent after! Was getting repeat lack of homing a chocolate extruder, installed on my Creality Ender 4 emails... From crashing into the surface ll occasionally send you account related emails firmware to negative...