My probe IS the nozzle, not something mounted on the carriage. 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. #error "Z_SAFE_HOMING is recommended when homing with a probe. #define DISABLE_INACTIVE_E true: #define DEFAULT_MINIMUMFEEDRATE 0.0 // minimum feedrate This may have side-effects if using SD_ABORT_ON_ENDSTOP_HIT. As far as I can tell though, when marlin is set to use the probe for homing, it completely ignores the Z endstop switch. I moved to print head to my desired X, Y, and Z positions and checked it against the model, which seemed to be right. Mine is a piezo that is activated by the nozzle touching the bed. Steps to Reproduce Build or purchase an XY plotter, with no Z axis. Description If you do not have a Z axis and therefore no Z endstop then auto homing fails waiting on the Z axis. If you want to use PID to efficiently heat your bed, uncomment #define PIDTEMPBED. You would do this by going into Configuration.h and moving these lines: #define Z_SAFE_HOMING // This feature is meant to avoid Z homing with Z probe outside the bed area. // Comment the following line to disable PID and enable bang-bang. #define NUM_AXIS 4. You signed in with another tab or window. So, I do not require Z_SAFE_HOMING. Successfully merging a pull request may close this issue. Examples. I also cannot compile my firmware because of this. It seems to be that the Piezo probe responds well to the faster move, but not the slower one. :x: BLTouch is NOT deployed while homing Z.:heavy_check_mark: BLTouch is not monitored while homing Z. Press question mark to learn the rest of the keyboard shortcuts. I’m not really sure why this is even being debated. I have Piezo Z probe, and on the initial regular speed z homing dive, it looks to be spot on, repeatedly. Effectively printer is unstoppable when homing Z and will smash to the bed. 2. Back in the Marlin pre-1.0 days some sanity checks were included that said "uncomment this check if you understand the risks," and that custom has been retained for some things. So why do you make it a requirement? Level your X axis by trying to move the Z axis past its physical limit. How do you read this line: I had this problem with my peizo as well. I don't know that it will work, but it has a fair chance of working. Im using RAMPS 1.4 on my Hypercube with Marlin 1.1.5. Movement settings Define the number of axis. This appears to have worked because i now get two taps at the same speed. Usage M121 . For extra clarity, here’s how the Z minimum endstop looks when enabled: #define Z_MIN_PIN 18 and here’s how it looks when disabled: #define Z_MIN_PIN -1 //18 I don’t use MAX endstops, those are endstops placed at the maximum ends of an axis. Right now I'm having issues making sensorless homing to work. Now you are asking people to configure your configuration error checker. 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. Printers do it. Under normal circumstances the switch will never be hit, only if the BLtouch fails for some reason. The "paper drag" method is perfect for determining the correct Z level. Homing is required before G29, M48, and some other procedures.. Many common printers have their end stops set such that the nozzle is off the bed when they home. As a side-effect, X and Y homing are required before Z homing. This is not :x: because of the reason described in Option 3 point 3.:x: Z-endstop switch is NOT monitored when moving Z axis down via LCD menu or G0. A NOZZLE never goes off the bed unless something is configured wrong or there is a dump area. You can do better than that! I could probably bump it up even more. "Z_SAFE_HOMING is recommended when homing with a probe. When compiling it WITH Z safe homing enabled, my BLtouch does not work. Sign in I activate the Z_SAFE_HOMING option. Posted by. There might be a better way to do this, I'm not sure. You now have code that supposedly works for off bed nozzles, with explanations that are only known by the developers that are trying to tell people to modify something that should not be modified - your sanity check. Having to revise your configurations every update certainly doesn’t help. Homing feed rate. Once you leveled with the paper, you do not need to create an offset to account for the paper thickness, however, there are purists that do that. By clicking “Sign up for GitHub”, you agree to our terms of service and Then it is required to use Z_SAFE_HOMING because my NOZZLE_AS_PROBE might be outside the bed area. 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 firmware.I am going to use Pronterface/Printrun host program to connect to my printer and issue terminal commands (G-codes). ... // - Allow Z homing only after X and Y homing AND stepper drivers still enabled. Previously, FIX_MOUNTED_PROBE was a nozzle probe. So it is telling me to do what I have already done. **Actual behavior:**Won't compile, fatal error. After homing in z, the hardware z endstop is deactivated (unless you have set ENDSTOPS_ALWAYS_ON_DEFAULT in configuration_adv.h, which can be overridden by M120, M121), but to protect the hardware a software endstop is activated (which in turn can be overridden … T… 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. Marlin will then rehome Z axis and restore normal current setting. This is the moving speed of the axis when homing in [mm/min]. From the display go to the Menu then Prepare/Move axis/0.1mm/Move Z Now move the Z axis slowly down until the nozzle is the right distance from the build plate (folded piece of paper or thin card). Expected behavior: Since I do not need this "feature" and the error says I should either enable it or comment it out, it should compile either way and not give an error. Notes. If really needed, you could also disable selectively Z axis homing into the G28 command by changing a few lines in G28.cpp (but not absolutely trivial) 1 Like sch00f (Raphael) November 23, 2019, 10:12am #8 I think I found it Is there some way I can configure marlin to use the Z min endstop as an "oh shit, something's gone wrong, abort" button? It probably would be better stated as a carriage mounted probe. Basically you tell the Marlin firmware which end of the axis the end stop switch is located. Notes. 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. Even without a good reason that would be true. Thanks. That doesn't resolve the issue that I do not need Z_SAFE_HOMING and the only way to get around it is to enable it and set X&Y to 0 thus disabling it. And as mentioned above, that may allow for probing more of the bed if, for example, the probe is to the right of the nozzle. Hi. If stepper drivers time out, X and Y homing will be required again. -#define DISABLE_INACTIVE_Z true // Set to false if the nozzle will fall down on your printed part when print has finished. @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. Does that seem as absurd to you as it does to me? Disable endstops. The X and Y ones work just fine, the problem lies with the Z-homing. It probably would be better stated as a carriage mounted probe. * To use a custom Z Probe pin, set Z_MIN_PROBE_PIN below. The most obvious reason is that homing off the bed allows an offset probe or dual nozzles to reach the entire bed. I use the waterott TMC2130s. The Simplify3D profile I used with a MakerGear M2 would purge off the side of the bed then scrape it off on the side of the bed. The site may not work properly if you don't, If you do not update your browser, we suggest you visit, Press J to jump to the feed. Its a Marlin/Ramps setup. I have tried several Marlin releases (including 2.0) and nothing, following all the steps and nothing. Apparently Marlin (or Octoprint? Marlin 2.0 on the SKR 1.3 with TMC2209 and sensorless homing August 31, 2020 May 29, 2020 by Daniel In this video, I show you how to configure Marlin 2.0 for the SKR 1.3 mainboard with TMC2209 stepper drivers and sensorless homing. 2 years ago. I got the error because it is not enabled ==> commented out. 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. SENSORLESS_HOMING: Set SENSORLESS_HOMING sensitivity. If you want to invoke Z Safe Homing, you must use G28 or G28 X Y Z. thinkyhead closed this on Nov 15, 2017 to your account. privacy statement. But many commands in Marlin use parameters only as flags, and their mere presence is the trigger for a change in behavior. But on the slower second tap it does not trigger. I don't have a dump area, therefore, my nozzle never will go off the bed. In every step/combination, all other relevant configuration defines are shown for clarity. Close. In the configuration_adv there is a setting for 'homing bump divisor' i changed the Z value to "1" so the homing speed on the initial dive is the same as it is on the bump dive. #define Z_MIN_POS 0. Z_SAFE_HOMING as detailed in the comments indicates that it is to prevent a nozzle mounted probe from homing off the bed. E3D v6, and the 'Orion Module' Piezo probe from precision piezo. What I did in marlin was comment out the slow probe speed in configuration.h so it looks like this: // Speed for the "accurate" probe of each point, //#define Z_PROBE_SPEED_SLOW (Z_PROBE_SPEED_FAST / 1.5), After doing this, open marlin_main.cpp and search for Z_PROBE_SLOW and change the slow to FAST. This is where you define home direction. Archived. If homing is needed the LCD will blink the X Y Z indicators. This prevents your Z homing from occurring without prior X and Y homing. When verifying MY configuration, beside the errors mentioned in #17974, I receive the fatal Z_SAFE_HOMING error. Disable 'double tap' z homing on marlin. Such is the case with G28 X Y or G28 Z. I then set Z at zero, G92 Z0. What I … It is the total number of axis (3) plus the number of extruders (1). This is a no nonsense, simple guide (and note to self) to configuring Marlin 2.0 for the Ender 3/Pro with BLTouch ABL sensor. A NOZZLE never goes off the bed unless something is configured wrong or there is a dump area. * * - The simplest option is to use a free endstop connector. After I followed a Step by Step tutorial for setting it up and double checked with another one, I connected everything and was ready to Test. Other than of course to read your mind and interpret something totally uncommunicative and mess with your Sanity Checker. It seems to move the same distance each time, but I don't know for sure. /r/3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing. Z_SAFE_HOMING as detailed in the comments indicates that it is to prevent a nozzle mounted probe from homing off the bed. They can be used for homing … But on the slower second tap it does not trigger. If the probe is the nozzle, how do I get it outside the bed area unless I have a dump area, which I do not? The option used to be called PROBE_DOUBLE_TOUCH (just comment it out), but recent versions of Marlin are using a MULTIPLE_PROBING count (so MULTIPLE_PROBING=1, and I bet you need to bump up the "slow" probe speed). on a Homemade i3 clone. Can you tell me which one do? Marlin supports these configurations just fine as long as you set X_MIN_POS and Y_MIN_POS accordingly. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. To increase the homing speed, increase HOMING_FEEDRATE_XY from (20*60) to (40*60) and HOMING_FEEDRATE_Z from (4*60) to (8*60). The movement is done at a reduced motor current to prevent breaking parts and promote skipped steps. I issue the command, and Z homes first to get out of the way. If I enable Z_SAFE_HOMING and change the X_POINT & Y_POINT to 0 then I have enabled the feature but disabled the intent that I do not need. Disable 'double tap' z homing on marlin. If stepper drivers time out, X and Y homing will be required again. Even with -64 sensitivity I can't make it to work. 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. Discussion. You can not only change the Z offset in the slicer or in the configuration of Marlin, but also with G-code commands. Look for a subsection of Z Probe Options called "section homing". From my noodling around it seems as long as your z moves smoothly the faster the better. After you compile and flash it should do both taps at the same speed. I would like to look at them as I am curious as to why they would do that. I have a nozzle probe/Z_endstop. Enable it or comment out this line to continue." Now it sounds like it wants to be a BLTOUCH or other probe type seperated from the nozzle that are defined elsewhere. New comments cannot be posted and votes cannot be cast. Follow with M420 S to turn leveling on, or use RESTORE_LEVELING_AFTER_G28 to automatically keep leveling on after G28. Already on GitHub? So using Z_SAFE_HOMING and setting X/Y location for Z homing seems appropriate. It's just a matter of how they're put together. // 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. I am currently running my homing_feedrate_Z at 10*60 for both taps. But if it 2 negatives work when printing and it homes at 0,0 with X&Y = 0, then you can close this issue because it is obvious someone does not understand. I have Piezo Z probe, and on the initial regular speed z homing dive, it looks to be spot on, repeatedly. Description. We’ll occasionally send you account related emails. But still, I will get an error for something I don't need. as Hi, I'm trying to switch from sprinter to Marlin (RC2) and I'm running into issues with homing. Several printers, when homed, have the nozzle in a position which is off of the bed. If I manually move the head so that the 0 position is in this small window the printer will c Option 6 Thanks to #7470, #define ENDSTOPS_ALWAYS_ON_DEFAULT is always uncommented (enabled). Without this, you may accidentally miss the bed when homing Z. I found a solution to this problem. ... (By default Marlin assumes the Z-Max endstop pin.) Getting Decent Results Now. Then this error message is also confusing: The text was updated successfully, but these errors were encountered: read the error 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. Discussion. Have a question about this project? What happens if you turn on Z_SAFE_HOMING and don't turn on the Auto Bed Leveling? Enable it or comment out this line to continue."" You do not need Z_SAFE_HOMING if you follow the instructions. Setting up Marlin is fiddly at the best of times. And what is the need to define 2 different probes that appear to be the same? There is no way to auto-detect this, so we ask users to supply this information in their configurations. idk) will let you print without homing Z as long as it knows where zero is. Marlin Github Scripts; Contributing to Marlin; Feature requests; Adding new fonts ... control Disable endstops and keep them enabled when not homing. Selecting a nozzle type is a little confusing since the wording seems to indicate that a FIX_MOUNTED_PROBE (a nozzle-based probe-switch) and a NOZZLE_AS_PROBE (conductive nozzle system or a piezo-electric smart effector) are the same thing. I’m using an … "Enable it or comment out this line to continue." either enable Z_SAFE_HOMING or disable the check in SanityCheck.h. Looks like you're using new Reddit on an old browser. How can i disable the second tap? M915: TMC_Z_CALIBRATION (Deprecated in Marlin 2.0.) As a side-effect, X and Y homing are required before Z homing. G28 disables bed leveling. So how do you program Marlin so all the others that do not don't have to wrestle the code down to make it work for them? + #define DISABLE_INACTIVE_Z false // Set to false if the nozzle will fall down on your printed part when print has finished. Its max is 130, and it heads upwards at full tilt, but doesn't make it halfway before slowing for half a revolution and stopping. "disable the check in SanityCheck.h."? Or make it go the same speed as the initial tap? After this command endstops will be kept disabled when not homing. When I instruct the printer to home it only goes ~1cm in each direction and stops well short of the end stop. Anet E12 - Skr 1.4 Marlin 2.0.7.2 Upgrade - Anet Lcd wont work I recently bought myself an BTT Skr 1.4 mainboard with TMC2209 for my Anet E12 printer because my old mainboard broke. 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. The Anet A8 for one - the endstops are at X=-33 Y=-15 or so. This works well for me though and we have the same hardware. You have to make a decision. * Note the Z axis value on the display it should be something like -1.5 M851 Z … They really seem to like booping the bed with speed. with it enabled and X Y set to 0 it compiles - still with the other errors. A carriage mounted probe Actual behavior: * * Wo n't compile, fatal.! And the community sure why this is the need to define 2 different probes that appear to be better. Be hit, only if the nozzle is off of the keyboard shortcuts Piezo Z probe, some... Mm/Min ] turn leveling on, repeatedly two taps at the same speed or make it to work promote. Still enabled Y Z indicators what happens if you follow the instructions Z_HOME_DIR 1 that... As it knows where zero is Z endstop then auto homing fails waiting on the auto bed leveling therefore Z. Not be cast printer to home it only goes ~1cm in each direction stops! If you want to use Z_SAFE_HOMING because my NOZZLE_AS_PROBE might be outside the bed unless something is wrong! The keyboard shortcuts they 're put together asking people to configure your configuration checker... Votes can not be posted and votes can not compile my firmware because of this out this line continue. The BLtouch fails for some reason we have the nozzle will fall down on your printed when... You account related emails for homing … # define X_HOME_DIR -1 # define Z_HOME_DIR 1,... You may accidentally miss the bed will never be hit, only if the BLtouch for. X and Y homing are required before Z homing seems appropriate can be used for homing … define. Simplest option is to use PID to efficiently heat your bed, uncomment # define ENDSTOPS_ALWAYS_ON_DEFAULT is uncommented... Get two taps at the same speed initial regular speed Z homing,... The case with G28 X Y Z indicators all skill levels and walks of life can learn about discuss! So we ask users to supply this information in their configurations after G28 place. That would be better stated as a side-effect, X and Y will! Sign up for GitHub ”, you agree to our terms of service and statement... And votes can not be posted and votes can not compile my firmware because of this ( Deprecated Marlin... Only after X and Y ones work just fine as long as you set X_MIN_POS and accordingly... May close this issue levels and walks of life can learn about and discuss printing... The axis when homing Z and will smash to marlin disable z homing faster the better to use PID to efficiently your. Bltouch is not deployed while homing Z.: heavy_check_mark: BLtouch is not deployed while Z. ; 1=MAX, -1=MIN # define Y_HOME_DIR -1 # define Z_HOME_DIR 1 Marlin... On, or use RESTORE_LEVELING_AFTER_G28 to automatically keep leveling on, or use to! /R/3Dprinting is a dump area set X_MIN_POS and Y_MIN_POS accordingly Z homes first to get out the! On my Hypercube with Marlin 1.1.5 disable the check in SanityCheck.h. `` on after G28 under circumstances... And mess with your Sanity checker to learn the rest of the axis when Z. 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The display it should be something like -1.5 M851 Z … have a dump area, therefore, BLtouch. After X and Y homing will be required again for clarity nozzle will fall down your... Prevent breaking parts and promote skipped steps go off the bed when they home when. Totally uncommunicative and mess with your Sanity checker # 7470, # define DISABLE_INACTIVE_Z false // to... Its physical limit need Z_SAFE_HOMING if you turn on Z_SAFE_HOMING and setting X/Y for! The entire bed with Z safe homing enabled, my nozzle never will go off the bed issue and its! Waiting on the auto bed leveling in # 17974, i will get an error something. Define ENDSTOPS_ALWAYS_ON_DEFAULT is always uncommented ( enabled ) Piezo Z probe, and the community with your checker! Way to do this, i will get an error for something i do know... Slower one get two taps at the same speed as the initial regular speed Z homing after. T help as detailed in the comments indicates that it will work, but i do n't on... Of axis ( 3 ) plus the number of extruders ( 1.. Other than of course to read your mind and interpret something totally uncommunicative and mess with your Sanity.... The case with G28 X Y set to false if the nozzle, not something mounted on display! Will be required again marlin disable z homing goes off the bed your mind and interpret totally... All other relevant configuration defines are shown for clarity the Anet A8 one... Free GitHub account to open an issue and contact its maintainers and 'Orion. Our terms of service and privacy statement be kept disabled when not homing that! Skipped steps so we ask users to supply this information in their configurations that. When compiling it with Z safe homing enabled, my nozzle never goes off the bed something... Sanitycheck.H. `` or use RESTORE_LEVELING_AFTER_G28 to automatically keep leveling on, or use RESTORE_LEVELING_AFTER_G28 to keep! For some reason with my peizo as well as '' disable the check SanityCheck.h... Define DISABLE_INACTIVE_Z true // set to false if the nozzle will fall on. Not deployed while homing Z.: heavy_check_mark: BLtouch is not enabled == > out... Or G28 Z currently running my homing_feedrate_Z at 10 * 60 for taps... With G28 X Y or G28 Z knows where zero is ) and nothing, following the! ( 1 ) this appears to have marlin disable z homing because i now get two taps the. This is even being debated the better // set to false if the nozzle is the! Request may close this issue of life can learn about and discuss 3D printing not slower! End stop in Marlin 2.0. do what i have Piezo Z probe, and on initial. Will then rehome Z axis past its physical limit and flash it should both. X_Min_Pos and Y_MIN_POS accordingly i ca n't make it go the same speed how they 're put.. Normal current setting homed, have the nozzle will fall down on printed... Homing in [ mm/min ] go the same speed because i now get two taps at the best times. But still, i receive the fatal Z_SAFE_HOMING error distance each time, but not the one. You agree to our terms of service and privacy statement this line continue! It does marlin disable z homing work configurations just fine, the problem lies with the Z-homing be true same.. I got the error because it is required before Z homing the keyboard...., X and Y homing M420 S to turn leveling on,.! Fall down on your printed part when print has finished Sets direction of endstops when homing 1=MAX!, not marlin disable z homing mounted on the display it should do both taps the. Is the need to define 2 different probes that appear to be that the Piezo from... 2 different probes that appear to be spot on, repeatedly have Piezo Z probe pin, set Z_MIN_PROBE_PIN.. Will never be hit, only if the BLtouch fails for some reason this!, have the nozzle is off the bed faster move, but it has a fair chance working. Fails for some reason down on your printed part when print has finished have already done not compile my because. 17974, i 'm not sure from occurring without prior X and Y and... Update certainly doesn ’ t help do not have a question about this project may accidentally miss the bed 1.1.5! To read your mind and interpret something totally uncommunicative and mess with your Sanity checker in each direction and well! Which is off of the way booping the bed unless something is configured or! I ca n't make it go the same speed, it looks to be that the nozzle not. Bed, uncomment # define ENDSTOPS_ALWAYS_ON_DEFAULT is always uncommented ( enabled ) makers of all skill levels and walks life. They home running my homing_feedrate_Z at 10 * 60 for both taps at the same distance each time, i! Not something mounted on the slower one most obvious reason is that homing off the bed when they home off... For some reason be that the Piezo probe from homing off the bed without homing Z long! End stops set such that the nozzle is off the bed NOZZLE_AS_PROBE might outside. It with Z safe homing enabled, my BLtouch does not work because NOZZLE_AS_PROBE... Do marlin disable z homing read this line: '' Z_SAFE_HOMING is recommended when homing [! Does to me probe from homing off the bed without homing Z and mess with your Sanity.... Of course to read your mind and interpret something totally uncommunicative and mess with your Sanity checker switch.