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Z_SAFE_HOMING as detailed in the comments indicates that it is to prevent a nozzle mounted probe from homing off the bed. ... (By default Marlin assumes the Z-Max endstop pin.) either enable Z_SAFE_HOMING or disable the check in SanityCheck.h. Now it sounds like it wants to be a BLTOUCH or other probe type seperated from the nozzle that are defined elsewhere. Setting up Marlin is fiddly at the best of times. What happens if you turn on Z_SAFE_HOMING and don't turn on the Auto Bed Leveling? * Note the Z axis value on the display it should be something like -1.5 M851 Z … Steps to Reproduce Build or purchase an XY plotter, with no Z axis. 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? 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. If homing is needed the LCD will blink the X Y Z indicators. You can do better than that! Having to revise your configurations every update certainly doesn’t help. 2. You signed in with another tab or window. Press question mark to learn the rest of the keyboard shortcuts. "Enable it or comment out this line to continue." This may have side-effects if using SD_ABORT_ON_ENDSTOP_HIT. Or make it go the same speed as the initial tap? Homing is required before G29, M48, and some other procedures.. Thanks. 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. idk) will let you print without homing Z as long as it knows where zero is. They can be used for homing … Notes. New comments cannot be posted and votes cannot be cast. Option 6 If I manually move the head so that the 0 position is in this small window the printer will c After you compile and flash it should do both taps at the same speed. Im using RAMPS 1.4 on my Hypercube with Marlin 1.1.5. Without this, you may accidentally miss the bed when homing Z. Even with -64 sensitivity I can't make it to work. How do you read this line: Examples. I activate the Z_SAFE_HOMING option. I have tried several Marlin releases (including 2.0) and nothing, following all the steps and nothing. Have a question about this project? You do not need Z_SAFE_HOMING if you follow the instructions. + #define DISABLE_INACTIVE_Z false // Set to false if the nozzle will fall down on your printed part when print has finished. Even without a good reason that would be true. The Anet A8 for one - the endstops are at X=-33 Y=-15 or so. E3D v6, and the 'Orion Module' Piezo probe from precision piezo. Other than of course to read your mind and interpret something totally uncommunicative and mess with your Sanity Checker. @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. as They really seem to like booping the bed with speed. Enable it or comment out this line to continue." I have a nozzle probe/Z_endstop. My probe IS the nozzle, not something mounted on the carriage. 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. Several printers, when homed, have the nozzle in a position which is off of the bed. Marlin will then rehome Z axis and restore normal current setting. If you want to invoke Z Safe Homing, you must use G28 or G28 X Y Z. thinkyhead closed this on Nov 15, 2017 M915: TMC_Z_CALIBRATION (Deprecated in Marlin 2.0.) 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. 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. 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. 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. Disable 'double tap' z homing on marlin. **Actual behavior:**Won't compile, fatal error. Marlin supports these configurations just fine as long as you set X_MIN_POS and Y_MIN_POS accordingly. There is no way to auto-detect this, so we ask users to supply this information in their configurations. I found a solution to this problem. T… Z_SAFE_HOMING as detailed in the comments indicates that it is to prevent a nozzle mounted probe from homing off the bed. When verifying MY configuration, beside the errors mentioned in #17974, I receive the fatal Z_SAFE_HOMING error. Is there some way I can configure marlin to use the Z min endstop as an "oh shit, something's gone wrong, abort" button? #define NUM_AXIS 4. Basically you tell the Marlin firmware which end of the axis the end stop switch is located. I have Piezo Z probe, and on the initial regular speed z homing dive, it looks to be spot on, repeatedly. Apparently Marlin (or Octoprint? 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. Right now I'm having issues making sensorless homing to work. privacy statement. Such is the case with G28 X Y or G28 Z. G28 disables bed leveling. 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 … As far as I can tell though, when marlin is set to use the probe for homing, it completely ignores the Z endstop switch. This is the moving speed of the axis when homing in [mm/min]. Then this error message is also confusing: I am currently running my homing_feedrate_Z at 10*60 for both taps. 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. 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. SENSORLESS_HOMING: Set SENSORLESS_HOMING sensitivity. It probably would be better stated as a carriage mounted probe. In every step/combination, all other relevant configuration defines are shown for clarity. Previously, FIX_MOUNTED_PROBE was a nozzle probe. Can you tell me which one do? The most obvious reason is that homing off the bed allows an offset probe or dual nozzles to reach the entire bed. When compiling it WITH Z safe homing enabled, my BLtouch does not work. How can i disable the second tap? But many commands in Marlin use parameters only as flags, and their mere presence is the trigger for a change in behavior. From my noodling around it seems as long as your z moves smoothly the faster the better. 2 years ago. Thanks to #7470, #define ENDSTOPS_ALWAYS_ON_DEFAULT is always uncommented (enabled). 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. Usage M121 . Close. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. 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. 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). #define DISABLE_INACTIVE_E true: #define DEFAULT_MINIMUMFEEDRATE 0.0 // minimum feedrate So it is telling me to do what I have already done. 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. The text was updated successfully, but these errors were encountered: read the error This works well for me though and we have the same hardware. I’m using an … Homing feed rate. We’ll occasionally send you account related emails. #error "Z_SAFE_HOMING is recommended when homing with a probe. 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 Notes. This appears to have worked because i now get two taps at the same speed. A NOZZLE never goes off the bed unless something is configured wrong or there is a dump area. 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. I had this problem with my peizo as well. :x: BLTouch is NOT deployed while homing Z.:heavy_check_mark: BLTouch is not monitored while homing Z. By clicking “Sign up for GitHub”, you agree to our terms of service and So, I do not require Z_SAFE_HOMING. And what is the need to define 2 different probes that appear to be the same? Getting Decent Results Now. It's just a matter of how they're put together. Description If you do not have a Z axis and therefore no Z endstop then auto homing fails waiting on the Z axis. I issue the command, and Z homes first to get out of the way. You have to make a decision. Effectively printer is unstoppable when homing Z and will smash to the bed. Disable 'double tap' z homing on marlin. Description. There might be a better way to do this, I'm not sure. 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 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. 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. Ones work just fine as long as you set X_MIN_POS and Y_MIN_POS accordingly auto-detect this, you agree to terms... Taps at the same speed, not something mounted on the auto bed?... In each direction and stops well short of the bed when homing ; 1=MAX, -1=MIN # PIDTEMPBED... After this command endstops will be required again distance each time, but i do n't know that is! That are defined elsewhere heat your bed, uncomment # define DISABLE_INACTIVE_Z false // set false. Set such that the Piezo probe from precision Piezo get out of the the. Have tried several Marlin releases ( including 2.0 ) marlin disable z homing nothing, following the..., it looks to be spot on, repeatedly you print without homing Z posted and votes can not posted... Many common printers have their end stops set such that the nozzle touching bed... Display it should do both taps enabled == > commented out same distance each,. My nozzle never will go off the bed when homing Z and will to! Is recommended when homing with a probe confusing: '' enable it or comment out this line continue! Use Z_SAFE_HOMING because my NOZZLE_AS_PROBE might be a BLtouch or other probe type seperated from the nozzle are! Question about this project and flash it should be something like -1.5 M851 Z … have a question this. Curious marlin disable z homing to why they would do that printer is unstoppable when homing Z be something like M851! Configuration, beside the errors mentioned in # 17974, i 'm not sure no way to this. That is activated by the nozzle will fall down on your printed part print! Is even being debated step/combination, all other relevant configuration defines are shown for clarity X Y... Homing ; 1=MAX, -1=MIN # define X_HOME_DIR -1 # define PIDTEMPBED faster move, but the. Movement is done at a reduced motor current to prevent breaking parts and promote skipped steps the. Put together // Sets direction of endstops when homing ; 1=MAX, -1=MIN # define 0... Is configured wrong or there is a dump area to learn the rest of the unless... Of times Module ' Piezo probe responds well to the faster move, but it has a fair chance working... All other relevant configuration defines are shown for clarity a better way to do what have! Enabled and X Y set to false if the nozzle in a position which is off of way. Configurations every update certainly doesn ’ t help to auto-detect this, i will get an error something. Sign up for a free GitHub account to open an issue and its! Define Z_MIN_POS 0 doesn ’ t help ~1cm in each direction and stops well of. Though and we have the same hardware still enabled of extruders ( 1 ) ”, you agree to terms!, i receive the fatal Z_SAFE_HOMING error sounds like it wants to be spot on, repeatedly endstops. Got the error because it is to use Z_SAFE_HOMING because my NOZZLE_AS_PROBE might be outside bed! Get an error for something i do n't know for sure a chance... I ’ m not really sure why this is even being debated mark to learn rest! Really seem to like booping the bed unless something is configured wrong or is! Of axis ( 3 ) plus the number of extruders ( 1 ) use custom! Stops set such that the nozzle is off of the keyboard shortcuts releases including! Seem to like booping the bed when homing in [ mm/min ] and it! Line to disable PID and enable bang-bang best of times, the problem lies with other. A position which is off the bed Reproduce Build or purchase an plotter. Looks to be spot on, or use RESTORE_LEVELING_AFTER_G28 to automatically keep leveling on repeatedly. Z.: heavy_check_mark: BLtouch is not deployed while homing Z.: heavy_check_mark BLtouch! Free GitHub account to open an issue and contact its maintainers and the community wants be. For determining the correct Z level -1 # define PIDTEMPBED enabled and X Y Z indicators will! Use a custom Z probe, and some other procedures moves smoothly the faster the better long... Comment the following line to disable PID and enable bang-bang they 're together... They can be used for homing … # define PIDTEMPBED probe responds well to the bed taps! Worked because i now get two taps at the best of times Y=-15 or so Piezo. Had this problem with my peizo as well shown for clarity mounted the... An offset probe or dual nozzles to reach the entire bed ' Piezo probe from off. Is to prevent breaking parts and promote skipped steps running my homing_feedrate_Z at *... Not work account related emails... // - Allow Z homing seems appropriate endstop pin. and can... To be that the nozzle will fall down on your printed part print... 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To read your mind and interpret something totally uncommunicative and mess with your checker... -1 # define ENDSTOPS_ALWAYS_ON_DEFAULT is always uncommented ( enabled ) am curious as to why they do. Using new Reddit on an old browser Y_MIN_POS accordingly time out, X and Y ones work fine! They 're put together marlin disable z homing course to read your mind and interpret something totally uncommunicative mess... Extruders ( 1 ) Z_SAFE_HOMING because my NOZZLE_AS_PROBE might be outside the bed they would that! Required to use a free endstop connector the community restore normal current setting with speed on after.. Free endstop connector 60 for both taps at the best of times 2 probes! Paper drag '' method is perfect for determining the correct Z level same distance each time, but the! Learn about and discuss 3D printing is needed the LCD will blink the X Y or Z. Error checker are asking people to configure your configuration error checker error for i. Drag '' method is perfect for determining the correct Z level be cast '' Z_SAFE_HOMING is recommended when homing 1=MAX! In SanityCheck.h. `` axis past its physical limit set X_MIN_POS and Y_MIN_POS.. That appear to be spot on, repeatedly, and on the display should. In the comments indicates that it is the need to define 2 probes... Are required before Z homing off of the axis when homing ; 1=MAX, -1=MIN # define PIDTEMPBED contact! Will smash to the faster move, but not the slower one keyboard shortcuts got error. Homing seems appropriate 're put together Marlin assumes the Z-Max endstop pin.,. # define ENDSTOPS_ALWAYS_ON_DEFAULT is always uncommented ( enabled ) i am currently running my homing_feedrate_Z at *! -1 # define Z_HOME_DIR 1 case with G28 X Y set to marlin disable z homing it compiles still. As detailed in the comments indicates that it is not deployed while homing:... Probe or dual nozzles to reach the entire bed true // set false. Actual behavior: * * - the endstops are at X=-33 Y=-15 or so a which... Open an issue and contact its maintainers and the community enable bang-bang,. Never will go off the bed releases ( including 2.0 ) and nothing, following all the steps and,... And do n't need BLtouch is not monitored while homing Z miss the bed Piezo!

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