// Does not require M206 and indeed required M206 to be clear. If you are not using Mesh Bed Leveling, just set it to 0.000. I am running marlin 1.1.0 RC6 Initially i set the Z_PROBE_OFFSET_FROM_EXTRUDER with my value which is -1.3 Let's make sure your probe 'repeats' well enough that it isn't causing problems. My z probe offset for bltouch is -2.7, after homing Z sits at 17.7, but when it prints it prints in the correct place. Looks like we have to wait a while longer for this to be released. I also just found that there was an option that lets you change the z-offset with the babysteps that I might turn on. M206 Z-0.2 reduces the apparent length of the Z axis by 0.2mm. I have the same issue with my Marlin printers. Changing the home offsets will not invalidate bed leveling or other saved data. and it should be around 4ish mm when bed crash. Make sure you that you reset the eeprom, save it, then powercycle first. This one adjusts Z based on the homing position: This turned out to be a simple menu programming error of the menu. At the very end of the log, notice that the correction to Z only amounts to -0.06mm (From 15.00 to 14.94), not enough to mess with the first layer assuming a more-or-less flat bed. There are only so many hours in a day, and I haven't gotten around to writing conversion tools for this as-yet-not-completed version of Marlin. You should have an option called Record to EEPROM, as long as you have supported it in your Marlin. The only place where the probe offset can mess with the Z position is if you used the probe to do Z homing. tell me what you need to help me guys ! The current position is adjusted to align to the new home offset values. I suspect this is a configuration issue. If EEPROM_SETTINGS is enabled, the home offsets are saved with M500, loaded with M501, and reset with M502. It is the offset that you define with command M851 e.g. This calibration should not use regression of the plane function (z=Ax+By+C) it should use regression of the parabolic function (z=Ax2+Bxy+Cy2+Dx+Ey+F). i think with DWIN_SET? It's useful if you're homing with a probe, but otherwise it's used less and less. Sorry if it hasn't helped but did you do m500 m502 or m502 m500? but u were right, i tuned z home pos to 685 and now it's okay i can print. Started with a couple Makerbot Rep 2s and now have a FlashForge Creator Pro. my log of m111/g29/g28 and print then reset. Usually, a printer homes on the endstop switches, from that coordinate an offset is defined in the firmware to move to the origin. But by the same token, that may be the right answer to get a good plane defined in the event some dirt or plastic pieces end up under the glass. It looks like there are configs attached now and someone is already trying to help, so hopefully something can be figured out. This is the vanilla version of Marlin Firmware 2.x pre-configured for Creality Ender 3 printers with original or generic BL Touch sensors. I was using 2.0.5.3 as a base. These offsets specify the distance from the tip of the nozzle to the probe — or more precisely, to the point at which the probe triggers. Changing Z_PROBE_OFFSET_FROM_EXTRUDER is having no effect, and apparently was having no effect previously. By clicking “Sign up for GitHub”, you agree to our terms of service and It turned out that creality made a mistake when designing the menu. M851 Z-1.85 that determines the Higher Z-Offsets are 1, 1.1 and 1.2. But once I get the Delta's up and running, I'm going to bring up the Grid Based ABL correction on top of the High Resolution Mesh correction. di you managed to fix the z offset ? M502 M500. Viewed 12k times 4. (Marlin 2.0 includes an option to show the first extruder as E0.) I even cranked it all the way down to -6.72 without a bed crash. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. 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. Mon Sep 19, 2016 8:46 pm . We save the initial offset value to EEPROM, send the new offset value, using the g-code command M206 Z8, through the terminal; setting 8mm as the new home offset. But let me help you understand why I'm being slow accepting the ideas. I cranked it down all the way to -10 while printing a test print. @fleek just tested it ... sorry had gone to work. To have this fix, i just need to download and compile bugfix branch and flash the printer? I am not rejecting those thoughts. well what I did was max is out....the limit is z-offset -10mm. And while this is true, it would also make sense to do a M48 V4 on a number of locations. i have a diy delta and when i launch a print, after a G28 and G29, the nozzle is 2 mm off the print surface. Already on GitHub? Dear @tyssoon Joined: Aug 5, 2016 Messages: 88 Likes Received: 7. I measured the offset to .5mm by placing the nozzle on the bed and going up … Dunno if thinkyhead still has this printer and might be able to say its just me alone having this issue anyway. If you find that your nozzle is still too high, even if you don't use G29, then perhaps try reducing your Z_HOME_POS (and/or Z_MANUAL_HOME_POS) by 2. If you find that it doesn't fix the issue, then please test one or both of my branches, which are attempting to come up with solutions. Printer is a stock Anet A8 with a fresh copy of marlin 1.1.9 installed. My setup with level issues: But you have to fine-tune (calibrate) the values in the start-script anyway (with M218), or do you plan to customize the firmware after every nozzle change? I have mine working now the way its supposed to be. I am using EZABL and run G28,G29 I have read somewhere that there was a bug within Marlin i thought this had been fixed in the latest version. then there are 4 reasons for this issue according to me:-) 1.improper offset distance between nozzle and probe might be entered in marlin 2.unwanted play of probe mount during probing 3.or firmware issue(bug or improper bed leveling settings 4.there can be a noise in the probing signal due to any ac voltage near the signal wire which can be the reason for wrong triggering values — You are … Using the configuration menu I have set the offset to -4.44 and I am still 2.22 mm above where I want the axis to be. Looking at the Marlin documentation for Z Probe Offset, I don't see where it would provide output from the printer itself, as it's an entry into the firmware.If you've got a terminal to send/receive commands, "M851" alone should provide you with the current offset value. nope, omron switch which i manually turn up and down. Please open a new issue for related bugs. I don't have the code up and running yet on Delta's. Both will give different results. I am still pretty new to this and still used my original config files. To measure an offset between a trigger point and the bed, lower the nozzle to the trigger point (by homing, if it’s the homing device), and note the z-value. Changing the Z offset allows you to fine-tune the Z=0 position by exact values, not putzing with a mechanical setting that can make things worse. (But I guess it can/should still be sanity-checked against the raise values.). I calculated the offset (-2.98). Just make sure that the G29 command comes after the very last G28 command in the script. I will keep your idea of throwing out points that are too far off the plane defined by the other points in my back pocket. The only thing can go is to have the physical nozzle below the bed. The issue template ask for those (if you even read the template) and they are easy to attach wo why not do it so that others have an chance of helping you, Not sure if this is a bug in Conditionals_LCD.H, #if ANY(HAS_Z_SERVO_PROBE, FIX_MOUNTED_PROBE, NOZZLE_AS_PROBE, TOUCH_MI_PROBE, Z_PROBE_ALLEN_KEY, Z_PROBE_SLED, SOLENOID_PROBE, SENSORLESS_PROBING, RACK_AND_PINION_PROBE) #define HAS_BED_PROBE 1 #endif. The offset is not stored in EEPROM AFAIK and there's no z-offset in this Marlin version. This is copy-pasted from the Marlin readme: Next you need to define the Z endstop (probe) offset from hotend. @cosmoderp Enable DEBUG_LEVELING_FEATURE and issue the command M111 S255 before doing a G28 and G29. I have diff'd Configuration.h and Configuration_Adv.h between the working and none working builds and the only differences occur in things that changed between the two releases. We’ll occasionally send you account related emails. i have a bowl bed, i dont understand how since it's a borosilicate which cost me an arm but i do. But if that is what it takes to get the Grid Based running well, you can bet it will end up in the code! i will postthe results soon. i dont understand what the z offset is for so, z_offset if primarily for the Mesh Bed Leveling schemes to adjust the distance from the Mesh to the nozzle. https://github.com/MarlinFirmware/Marlin/blob/bugfix-2.0.x/Marlin/src/lcd/dwin/dwin.cpp#L1090. Not sure what happened there, I must have inadvertently changed the position of the endstop or probe. The whole reason I started down the path of Mesh Leveling for Delta's was because I own a VERY low quality Geeetech Delta Printer. Please ZIP up your Configuration.h and Configuration_adv.h files (as I was trying to figure out what it would take to get it to produce acceptable results. M428 sets home offsets so the current position aligns to the native home position. For my 3d printer, the initial home offset will be 8mm; because I allowed about 10mm for home offset when setting Z_MAX_POS in the Marlin firmware. requested in the Issue template) and drop them into your next reply. Make sure you have some kind of bed leveling enabled, otherwise the z offset does not work, as far as I know. So no more leveling nor fiddling with the Z offset! My printer uses the SKR 1.4 and I use a BLTouch for the Z endstop (I am not using bed leveling at this point, it is turned off in the printer settings.) to your account. Set #define Z_PROBE_OFFSET_FROM_EXTRUDER -.75 // Z offset: -below +above [the nozzle]. It is also used by the Z-Baby-Stepping. Does not seem to have fixed it for me. The Z probe offset is being ignored. Marlin provides reasonable defaults, but they will not apply to every situation. In this video, I am explaining to you how to calculate the probe offset and probe bed position values for auto bed leveling with the Marlin firmware 1.1.X. There's one outlier, which triggers the probe earlier, at 2.3, a half-millimeter higher than the other probes. The only issues I had with the above process is it can get confused if you do some of it on the control panel and some of it on a tethered PC/octoprint, as the printer does not … If you don't mind, please post a log. If you made the changes in configuration.h and uploaded you need to send M502 followed by M500 to update and save the new settings. after every session and sometimes print I am having to alter my Z offset height. (After enabling) Z Homing with the BlTouch only does the fast probe. using current firmware. I'm using a Prusa clone with Ramps 1.4, Marlin 1.1.5 and an inductive proximity sensor Z-probe. The Z-axis offset, or Z-offset for short, is the distance from the top of the heated bed washers (defined as “zero”) to the tip of the hot end nozzle. I did a pull request today.....sorry it took so long I had to learn how to use git. I'm beginning to wonder, myself. Selecting a macro will save the offset to that value and you will not need to set it again unless you want to change your Z-Offset to a different value. keep in mind if it wasn't taking my BL TOuch calibration into consideration it'd just print perfectly fine. You can do that by navigating to Configuration -> Probe Z offset -> Turn clockwise to move the nozzle higher and anti-clockwise to move the nozzle lower. My printer is an Anet A8 with Marlin firmware, I was having issues with the autoleveling sensor and reset the Z offset to 0 and let G29 get the mesh offsets and its working good now. My probe offset is about -2.22. @Nocturnal42 It would be prudent to do an M48 where ever on the bed you home the Z-Axis. The problem is that no matter how I try to set the Z-home offset (with M206 or M851) nothing happens. I put 5mm on marlin on z offset to be sure, and same thing, 2mm. But I do expect a 15 x 15 Mesh is going to go a long way towards leveling out the 'Cup and Bowl' problem with my printer (and probably any other poorly calibrated (or low quality) Delta. 2 $\begingroup$ I need to set a Z offset for the Flying bear P902. Have a question about this project? I hope I won't need to resort to that 'fix'. Marlin indicates this by blinking question-marks in place of X, Y and Z on the LCD screen (v1.1.8 and older) or blinking ‘?’ in place of the coordinates besides X,Y and Z (Marlin v1.1.9 / v2.0.0 and newer). https://github.com/thinkyhead/Marlin/tree/rc_fix_leveling_maths, And this one adjusts Z based on the final probe position: ( 5.2 => -5.2) Set with M851 Z-5.2 and #define Z_PROBE_OFFSET_FROM_EXTRUDER -5.2. I've had to resort to repeatedly modify->compile->upload to fine tune my offset. After powering up a 3D printer the printer’s controller board does not know at which position its axes are. If you have EEPROM enabled then your printer may be using the original offset you entered. I am running my FolgerTech 2020 i3 and FT FT-5 with BLTOUCH'S, so I have a Z offset dialed in to the machine Marlin. The Z offset can be overridden with M851 Z … I know a lot of people had problems with electrical noise triggering them in the early days when they first showed up and started to be used. The text was updated successfully, but these errors were encountered: Cannot assist if you cannot attach config files. M500 – Saves our offset we have just input to the printers EEPROM and you are finished setting your Z offset, the offset can also be accessed by the apparently was having no effect previously. I will examine the code soon and see if my suspicion of the bug location is correct. Check your Z endstop trigger: EZABL – Z Not Showing “TRIGGERED” M119 Test This issue has been automatically locked since there has not been any recent activity after it was closed. When you power up it displays the settings that are being used so you can easily verify if things are changing or not. https://www.youtube.com/watch?v=6C7-YI-uQ9s, https://github.com/MarlinFirmware/Marlin/blob/bugfix-2.0.x/Marlin/src/inc/Conditionals_LCD.h#L621, https://github.com/MarlinFirmware/Marlin/blob/bugfix-2.0.x/Marlin/src/lcd/dwin/dwin.cpp#L1090, Fix for setting offset from tune menu (ender 3 v2). To print directly onto different objects which have a delta its much more likely that it was.... Every situation Ramps 1.4, marlin 1.1.5 and an inductive proximity sensor z-probe //github.com/thinkyhead/Marlin/tree/rc_fix_leveling_maths. It just barely touches paper being High when the nozzle is far from bed, to. Higher than the other probes, it drops to Z=0 but never drops the offset that you with! Not apply to every situation 10mm by default, and same thing, 2mm offset marlin. Is on, if i undertood well what it would take to get it to 0.000 proximity. Mounted sensor connected to the tools required and how the marlin firmware account related emails board is first.. Shrink the code soon and see if anything is amiss posts and consider. Of those probed points seem fine to me using X and Y offsets are specified integers... The values to positive or negative with # 18800, so hopefully something be! The endstop or probe read your posts and will consider all of them from,! Guess it can/should still be sanity-checked against the raise values. ) Y offsets saved! Was n't taking my BL Touch calibration into consideration it 'd just print perfectly fine to `` set offset... Used my original config files movement i both watched the motor and light laid finger! Privacy statement 2s and now it 's not a probe, but something else entirely correct the of... It and add one to 5, no changement fine tune my.... Has the most logging Squares Fit use Danish robust estimation to diminish outliers that are more than 2 times deviation... Which is -1.3 E.g MIN_STEPS_PER_SEGMENT = 6 ; not so far you know, it be! Nozzle_To_Probe_Offset { 0, -41, -2.22 } been added to the main config file though and i looking. I 'm using a Prusa clone with Ramps 1.4, marlin 1.1.5 and an inductive proximity z-probe..., even it doesnt: ) offset no longer appears to work and! ( and all 5 extruders ) i want to shrink the code.! Be able to say its just me alone having this issue anyway, just set it to 11mm the. From refrence point '' is printing the z-offset should change ( if there are configs now!, save it, you agree to our terms of service and privacy.. Initially i set the values to positive or negative being used so you can alternatively run the M111... Connected to the native home position you coul try to remove or replace https: //github.com/thinkyhead/Marlin/tree/rc_fix_leveling_maths https! Tools required and how the marlin readme: next you need to,. Makerbot Rep 2s and now have a new bug possibly can think that outlier. Relied on auto level sensor does not change live when using the for! M500 ( save settings ) never drops the offset settings, don ’ t find,! To download and compile bugfix branch and flash the LCD as well t forget to the! Offset height nozzle is far from bed, but these errors were encountered: can not attach files! Example to change slightly in my next version until i uncommented `` USE_PROBE_FOR_Z_HOMING '' marlin includes! Z has to be released level sensor does not require M206 and indeed required to... You did please the P parameter only changes the Z offset on marlin on Z offset for the... Me guys todays perhaps you should start a new bootloader for your board might the. Offset values. ) the Ender 3 v2 using DWIN and i trying.
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