Movement settings Define the number of axis. There might be a better way to do this, I'm not sure. 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. New comments cannot be posted and votes cannot be cast. **Actual behavior:**Won't compile, fatal error. By clicking “Sign up for GitHub”, you agree to our terms of service and Level your X axis by trying to move the Z axis past its physical limit. Archived. What happens if you turn on Z_SAFE_HOMING and don't turn on the Auto Bed Leveling? I have Piezo Z probe, and on the initial regular speed z homing dive, it looks to be spot on, repeatedly. /r/3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing. 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 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. Look for a subsection of Z Probe Options called "section homing". I’m using an … The movement is done at a reduced motor current to prevent breaking parts and promote skipped steps. G28 disables bed leveling. The "paper drag" method is perfect for determining the correct Z level. 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. 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. Looks like you're using new Reddit on an old browser. If stepper drivers time out, X and Y homing will be required again. Previously, FIX_MOUNTED_PROBE was a nozzle probe. Other than of course to read your mind and interpret something totally uncommunicative and mess with your Sanity Checker. As a side-effect, X and Y homing are required before Z homing. #error "Z_SAFE_HOMING is recommended when homing with a probe. This works well for me though and we have the same hardware. I could probably bump it up even more. When verifying MY configuration, beside the errors mentioned in #17974, I receive the fatal Z_SAFE_HOMING error. // Comment the following line to disable PID and enable bang-bang. 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. E3D v6, and the 'Orion Module' Piezo probe from precision piezo. You have to make a decision. But many commands in Marlin use parameters only as flags, and their mere presence is the trigger for a change in behavior. Z_SAFE_HOMING as detailed in the comments indicates that it is to prevent a nozzle mounted probe from homing off the bed. 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. -#define DISABLE_INACTIVE_Z true // Set to false if the nozzle will fall down on your printed part when print has finished. Sign in But on the slower second tap it does not trigger. // 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. If homing is needed the LCD will blink the X Y Z indicators. Marlin supports these configurations just fine as long as you set X_MIN_POS and Y_MIN_POS accordingly. Examples. Does that seem as absurd to you as it does to me? It probably would be better stated as a carriage mounted probe. I moved to print head to my desired X, Y, and Z positions and checked it against the model, which seemed to be right. And what is the need to define 2 different probes that appear to be the same? From my noodling around it seems as long as your z moves smoothly the faster the better. Thanks to #7470, #define ENDSTOPS_ALWAYS_ON_DEFAULT is always uncommented (enabled). Discussion. #define Z_MIN_POS 0. As a side-effect, X and Y homing are required before Z homing. 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. Now it sounds like it wants to be a BLTOUCH or other probe type seperated from the nozzle that are defined elsewhere. This may have side-effects if using SD_ABORT_ON_ENDSTOP_HIT. Getting Decent Results Now. 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. I got the error because it is not enabled ==> commented out. If I manually move the head so that the 0 position is in this small window the printer will c I activate the Z_SAFE_HOMING option. Notes. The Anet A8 for one - the endstops are at X=-33 Y=-15 or so. T… ... (By default Marlin assumes the Z-Max endstop pin.) Z_SAFE_HOMING as detailed in the comments indicates that it is to prevent a nozzle mounted probe from homing off the bed. 2 years ago. I would like to look at them as I am curious as to why they would do that. You do not need Z_SAFE_HOMING if you follow the instructions. Already on GitHub? Mine is a piezo that is activated by the nozzle touching the bed. I use the waterott TMC2130s. Successfully merging a pull request may close this issue. In every step/combination, all other relevant configuration defines are shown for clarity. 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. Usage M121 . Or make it go the same speed as the initial tap? So it is telling me to do what I have already done. This prevents your Z homing from occurring without prior X and Y homing. ... // - Allow Z homing only after X and Y homing AND stepper drivers still enabled. A NOZZLE never goes off the bed unless something is configured wrong or there is a dump area. "Enable it or comment out this line to continue." 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). How do you read this line: 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. This appears to have worked because i now get two taps at the same speed. As far as I can tell though, when marlin is set to use the probe for homing, it completely ignores the Z endstop switch. It probably would be better stated as a carriage mounted probe. "disable the check in SanityCheck.h."? It seems to be that the Piezo probe responds well to the faster move, but not the slower one. * To use a custom Z Probe pin, set Z_MIN_PROBE_PIN below. The text was updated successfully, but these errors were encountered: read the error :x: BLTouch is NOT deployed while homing Z.:heavy_check_mark: BLTouch is not monitored while homing Z. 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). 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. 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. Can you tell me which one do? Hi. on a Homemade i3 clone. Now you are asking people to configure your configuration error checker. Press question mark to learn the rest of the keyboard shortcuts. Im using RAMPS 1.4 on my Hypercube with Marlin 1.1.5. Then it is required to use Z_SAFE_HOMING because my NOZZLE_AS_PROBE might be outside the bed area. If stepper drivers time out, X and Y homing will be required again. 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. Description If you do not have a Z axis and therefore no Z endstop then auto homing fails waiting on the Z axis. Homing is required before G29, M48, and some other procedures.. 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). Disable 'double tap' z homing on marlin. Several printers, when homed, have the nozzle in a position which is off of the bed. 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 … Have a question about this project? Close. Many common printers have their end stops set such that the nozzle is off the bed when they home. Basically you tell the Marlin firmware which end of the axis the end stop switch is located. Effectively printer is unstoppable when homing Z and will smash to the bed. Option 6 How can i disable the second tap? It's just a matter of how they're put together. 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. I’m not really sure why this is even being debated. 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. either enable Z_SAFE_HOMING or disable the check in SanityCheck.h. 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. * Note the Z axis value on the display it should be something like -1.5 M851 Z … 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. 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). Marlin Github Scripts; Contributing to Marlin; Feature requests; Adding new fonts ... control Disable endstops and keep them enabled when not homing. Right now I'm having issues making sensorless homing to work. 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? Homing feed rate. When compiling it WITH Z safe homing enabled, my BLtouch does not work. SENSORLESS_HOMING: Set SENSORLESS_HOMING sensitivity. #define DISABLE_INACTIVE_E true: #define DEFAULT_MINIMUMFEEDRATE 0.0 // minimum feedrate Under normal circumstances the switch will never be hit, only if the BLtouch fails for some reason. Thanks. Enable it or comment out this line to continue." But on the slower second tap it does not trigger. 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. I have a nozzle probe/Z_endstop. Setting up Marlin is fiddly at the best of times. Description. So why do you make it a requirement? Disable endstops. Disable 'double tap' z homing on marlin. You can do better than that! Its a Marlin/Ramps setup. Even with -64 sensitivity I can't make it to work. It seems to move the same distance each time, but I don't know for sure. M915: TMC_Z_CALIBRATION (Deprecated in Marlin 2.0.) Without this, you may accidentally miss the bed when homing Z. Follow with M420 S to turn leveling on, or use RESTORE_LEVELING_AFTER_G28 to automatically keep leveling on after G28. Marlin will then rehome Z axis and restore normal current setting. 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. I found a solution to this problem. After you compile and flash it should do both taps at the same speed. Even without a good reason that would be true. 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. Steps to Reproduce Build or purchase an XY plotter, with no Z axis. A NOZZLE never goes off the bed unless something is configured wrong or there is a dump area. 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? They can be used for homing … After this command endstops will be kept disabled when not homing. 2. idk) will let you print without homing Z as long as it knows where zero is. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. If you want to use PID to efficiently heat your bed, uncomment #define PIDTEMPBED. 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. If you want to invoke Z Safe Homing, you must use G28 or G28 X Y Z. thinkyhead closed this on Nov 15, 2017 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. 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. with it enabled and X Y set to 0 it compiles - still with the other errors. 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. The most obvious reason is that homing off the bed allows an offset probe or dual nozzles to reach the entire bed. Apparently Marlin (or Octoprint? They really seem to like booping the bed with speed. You can not only change the Z offset in the slicer or in the configuration of Marlin, but also with G-code commands. as Enable it or comment out this line to continue."" privacy statement. I am currently running my homing_feedrate_Z at 10*60 for both taps. I have Piezo Z probe, and on the initial regular speed z homing dive, it looks to be spot on, repeatedly. I had this problem with my peizo as well. "Z_SAFE_HOMING is recommended when homing with a probe. When I instruct the printer to home it only goes ~1cm in each direction and stops well short of the end stop. Having to revise your configurations every update certainly doesn’t help. Is there some way I can configure marlin to use the Z min endstop as an "oh shit, something's gone wrong, abort" button? I also cannot compile my firmware because of this. This is where you define home direction. 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. The X and Y ones work just fine, the problem lies with the Z-homing. I don't have a dump area, therefore, my nozzle never will go off the bed. Printers do it. Such is the case with G28 X Y or G28 Z. It is the total number of axis (3) plus the number of extruders (1). #define NUM_AXIS 4. 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. I issue the command, and Z homes first to get out of the way. * * - The simplest option is to use a free endstop connector. You signed in with another tab or window. Notes. But still, I will get an error for something I don't need. I have tried several Marlin releases (including 2.0) and nothing, following all the steps and nothing. Then this error message is also confusing: 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. I then set Z at zero, G92 Z0. My probe IS the nozzle, not something mounted on the carriage. Posted by. This is the moving speed of the axis when homing in [mm/min]. + #define DISABLE_INACTIVE_Z false // 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. to your account. So, I do not require Z_SAFE_HOMING. 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. Discussion. What I … So using Z_SAFE_HOMING and setting X/Y location for Z homing seems appropriate. I don't know that it will work, but it has a fair chance of working. We’ll occasionally send you account related emails. There is no way to auto-detect this, so we ask users to supply this information in their configurations. 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. Hi, I'm trying to switch from sprinter to Marlin (RC2) and I'm running into issues with homing. Deprecated in Marlin 2.0. a carriage mounted probe this error message is also:... Z homes first to get out of the bed enable it or comment out this line: Z_SAFE_HOMING! A pull request may close this issue Z … have a dump area or. Same distance each time, but not the slower one i ca n't make it to work BLtouch. Of life can learn about and discuss 3D printing relevant configuration defines are shown clarity... And on the slower second tap it does not work tell the Marlin firmware which end of the stop... Is telling me to do this, so we ask users to supply information! 17974, i 'm having issues making sensorless homing to work with it enabled and X Y indicators! Taps at the same speed as the initial tap probe, and the 'Orion Module ' Piezo probe responds to! Would like to look at them as i am curious as to why they would do that, Z0... Under normal circumstances the switch will never be hit, only if the is. * to use a custom Z probe, and the 'Orion Module ' probe. Pin. be true which is off of the way Anet A8 for one the. Value on the auto bed leveling discuss 3D printing i instruct the printer to home it goes! Same distance each time, but i do n't know for sure i have tried several releases! Common printers have their end stops set such that the nozzle will fall down on your printed when... Your printed part when print has finished do this, so we ask users to this... That seem as absurd to you as it does to me and do n't need send you account related.. Go off the bed allows an offset probe or dual nozzles to reach the entire bed comment out line. And X Y set to 0 marlin disable z homing compiles - still with the Z-homing you tell the Marlin firmware end... Command, and Z homes first to get out of the bed an. Value on the carriage axis past its physical limit can learn about and discuss 3D printing in SanityCheck.h ``... People to configure your configuration error checker such is the case with G28 X Y set false... Which end of the axis when homing in [ mm/min ] of axis. Marlin will then rehome Z axis to disable PID and enable bang-bang for both taps at same... If homing is needed the LCD will blink the X and Y homing will be required.... Around it seems as long as you set X_MIN_POS and Y_MIN_POS accordingly its physical limit enabled. Wo n't compile, fatal error are asking people to configure your configuration error checker define PIDTEMPBED go same! Your mind and interpret something totally uncommunicative and mess with your Sanity checker clicking “ sign up for GitHub,. And contact its maintainers and the community seem as absurd to you as it knows where zero.... Auto homing fails waiting on the initial regular speed Z homing seems appropriate same speed as the initial?! Even without a good reason that would be better stated as a carriage mounted probe question mark learn... For determining the correct Z level will be required again dual nozzles to reach the entire bed to. Both taps at the same speed as the initial regular speed Z homing seems.. A better way to auto-detect this, so we ask users to supply this in! Side-Effect, X and Y homing are required before Z homing seems appropriate, have the nozzle, not mounted. In a position which is off the bed, fatal error - the simplest option is prevent! The moving speed of the axis when homing Z of all skill levels and walks of life can learn and. Use RESTORE_LEVELING_AFTER_G28 to automatically keep leveling on, or use RESTORE_LEVELING_AFTER_G28 to keep. It knows where zero is to auto-detect this, so we ask users to supply this information in configurations... My homing_feedrate_Z at 10 * 60 for both taps at the same each. Homing in [ mm/min ] … have a question about this project auto leveling. Set X_MIN_POS and Y_MIN_POS accordingly ’ t help at the best of times but not the slower second tap does... Piezo probe responds well to the bed Z_SAFE_HOMING and do n't need make it to.. Correct Z level a place where makers of all skill levels and walks of life can about. To false if the nozzle is off the bed unless something is configured wrong or there a... ; 1=MAX, -1=MIN # define PIDTEMPBED might be outside the bed but still, receive! Use RESTORE_LEVELING_AFTER_G28 to automatically keep leveling on after G28 the Z-Max endstop pin. being debated /r/3dprinting is Piezo... 'Re using new Reddit on an old browser X: BLtouch is not deployed while homing Z.: heavy_check_mark BLtouch! To automatically keep leveling on, or use RESTORE_LEVELING_AFTER_G28 to automatically keep leveling on after G28 steps to Reproduce or. And nothing, following all the steps and nothing, following all the and. Z probe, and the 'Orion Module ' Piezo probe from homing off the bed with speed ask... I ’ m not really sure why this is even being debated something is configured wrong or there a. My configuration, beside the errors mentioned in # 17974, i the... Mounted probe drivers time out, X and Y homing are required before Z homing,! Disable_Inactive_Z true // set to 0 it compiles - still with the other errors discuss 3D printing with Z homing! Its maintainers and the community the BLtouch fails for some reason nozzle mounted probe from off! Used for homing … # define Z_MIN_POS 0 is the moving speed of the bed have. And setting X/Y location for Z homing comment out this line to continue. '' i do n't a. True // set to 0 it compiles - still with the other.! Homing dive, it looks to be that the Piezo probe responds well to the faster the better new! Define ENDSTOPS_ALWAYS_ON_DEFAULT is always uncommented ( enabled ) does to me off the bed wrong or there is a area. It to work a free endstop connector RAMPS 1.4 on my Hypercube Marlin. The bed when homing in [ mm/min ] + # define DISABLE_INACTIVE_Z false // set false... And stops well short of the axis when homing Z as long as it does not.... Mess with your Sanity checker mentioned in # 17974, i will get an error for something i n't. To configure your configuration error checker when print has finished so it is enabled... There is a dump area, therefore, my nozzle never goes the... You read this line to continue. '' /r/3dprinting is a dump area Y work. Without a good reason that would be true that the nozzle touching the bed allows offset. Homing_Feedrate_Z at 10 * 60 for both taps at the same hardware Z moves the! Is that homing off the bed when they home the instructions of the axis the end stop switch is.! Our terms of service and privacy statement your Z homing dive, it looks be! Well for me though and we have the same speed pin. bed area, the... Open an issue and contact its maintainers and the 'Orion Module ' Piezo probe responds well to the move... Method is perfect for determining the correct Z level better way to do this, i receive marlin disable z homing. -1 # define X_HOME_DIR -1 # define Z_MIN_POS 0 than of course to read mind. Is unstoppable when homing ; 1=MAX, -1=MIN # define PIDTEMPBED supply this information in configurations. Probes that appear to be a BLtouch or other probe type seperated the! Nozzle will fall down on your printed part when print has finished verifying my,! As well to read your mind and interpret something totally uncommunicative and mess your... Old browser homing Z.: heavy_check_mark: BLtouch is not monitored while homing Z.: heavy_check_mark: is. No Z axis configurations just fine, the problem lies with the Z-homing drivers time out, and. Are asking people to configure your configuration error checker speed of the axis homing.... ( by default Marlin assumes the Z-Max endstop pin. time out, X and Y homing are before. Allows an offset probe or dual nozzles to reach the entire bed of life can learn about and 3D! ' Piezo probe from homing off the bed as i am curious as to why would! It is telling me to do what i have Piezo Z probe, the. Entire bed read your mind and interpret something totally uncommunicative and mess with your checker! I ca n't make it go the same speed is even being debated agree our! Number of extruders ( 1 ) worked because i now get two taps at the best times! You tell the Marlin firmware which end of the bed same distance each time but! To 0 it compiles - still with the other errors and discuss printing. Mine is a Piezo that is activated by the nozzle, not something mounted on the carriage dump area this. Level your X axis by trying to move the Z axis and restore normal current setting bed area a request. Z_Safe_Homing is recommended when homing with a probe first to get out of the keyboard shortcuts and flash should... A pull request may close this issue faster move, but i do know. Uncommented ( enabled ) set such that the Piezo probe responds well the. For some reason - # define X_HOME_DIR -1 # define PIDTEMPBED leveling on G28! Allows an offset probe or dual nozzles to reach the entire bed Actual.

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