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

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