Bltouch z offset keeps changing. 0 to "somewhat move the paper" .

Bltouch z offset keeps changing I paired this with a TFT35 V3. @fcwilt when I use g30, the bltouch triggers and stops the bed. I recently purchased a CR touch and I've been having weird issues with my Z offset, mainly that it is incredibly inconsistent. Neptune 4 Max z Offest Keeps Changing Semi-NEWB BLtouch HELP: Z-axis too high after Level and AutoHome upvote r/makerbot. Offset = 0. After I auto home then adjust the Z position with the paper thing, then I put the same value under Probe Z offset and it always I set the z-offset and then store settings. You have the step_distance fixed and a value under z_offset, Z offset keeps getting higher and higher during prints . BLtouch and nozzle do not wobble. 68, I tried just setting that value in z_offset: in the [bltouch] section but klipper complains if that value is lower than 0. There's two real reasons for that. - - - If you I have a question. I have gotten one successful print after manually calibrating the Z height when the print started. Before my Bltouch, I had a bed that was too high. cshotton Z offset keeps changing Unlike Marlin, the Z-offset you set in the firmware for the BLTouch is hard coded. Everytime it starts I have to adjust the print bed to the point that the screws are so loose it's almost not attached. it seems my Z-Offset keeps changing. Reply reply Only time I've changed it is via a gcode command at the start of my PETG filament profile, since that seems to like being printed a bit higher. whether it will allow that One of the issues that I have noticed is that my printer extruder / bed seems to change it's positioning to the point that I need to adjust the z-offset each print. 3, back to 0), but everything feels tight. 11. I've been printing perfectly fine the past few weeks and switched to a glass bed since my bed is warped so I had to adjust my z end stop. 0 to "somewhat move the paper" . I have tried using jyers marlin fork with 5x5 and 10x10 UBL versions. Prints were coming out perfectly level. It changed my z offset constantly. it prints partially in the air. When you have a BLtouch the Z offset IS the distance between the end of the probe and the nozzle. Ender 3 v2 bltouch and z offset constantly changing issues (discussion) The z-offset seems to change after every Forums. Store settings. Tried several times and it just keeps happening. x and 2. Then I test print and have to adjust a little bit on the fly, then I save it. Mine ended up being 3. Ever since that I've been having issues where my z offset changes every print. 9. Z-offset is constantly changing / Stock Ender 5 Plus + BLTouch upvotes I recently upgraded my firmware and installed the BLTouch device, but after auto-homing and auto leveling the nozzle won't get close to the glass. Then I just went and paid the couple $ for https://marlin. The first being, there's a setting called z offset that's meant to adjust the distance between the The z-offset seems to change after every Forums. 3 mm Z height is mostly likely the result of my over compensation of the Z offset. Now all of a sudden the Z axis will not respond to Z-Offset commands. Changing the z offset only helps one side of the bed. Whenever I select auto-home, the z-axis is always too high. I recently upgraded my Ender 3 with a BLTouch and it was doing this aswell as ignoring the bltouch and just crashing into the bed. You also have to make sure your bltouch is mounted at an acceptable height tolerances relative to your nozzle but if your g29 completes this shouldn't be an issue. Now i try to print again, and it still won’t print. 15mm each time. Then I shut off the printer and turn it on agai, try the same point, at the same temperature (60 celsius), and then i have to make the z-axis to 0. Edit the klipper config file from octoprint, Save, Close, Restart Klipper Home your printer Move Z to 0 If set correctly, Z should be barely touching build plate. To calibrate the BLTouch Z offset value with the probe offset wizard, go to the Z Probe Wizard by navigating to the Probe Offsets menu under the Advanced Settings section. Here is the issue. If it’s commented out that means the value is now located at the very bottom of The movement was 148. If the difference between the minimum reported z_offset and the maximum reported z_offset is Now the BLTouch will 90% of the time home fine, but occasionally it crashes the nozzle on the second slow probe. There's a reason that in klipper the Z_Offset property is in the [bltouch] section, and not the [extruder] or [heater_bed] sections of the configuration file. 9. I had no issues with the bltouch and setting the z offset. cfg Potential solutions Revert the when I change the z-offset by 0. 5 and get it mostly working This is progress. This process will bring the printhead back to the home position and bring up a screen where you can move the printhead in increments of 1 mm, 0. The problem is that there is a valid mesh and probing works fine but when it comes to printing z axis movement is not compensating for the mesh. First method: Home all axis and change the Z-offset so the nozzle touches the paper. Bltouch MS direct drive. Save the file, run the probe calibration on the sonic pad. I have tightened and loosened the rollers and it at least feels like it is running smoothly. If your nozzle hits the bed when you start to print, one of two things is likely the issue: 1) your z offset is too big a negative value or 2) you're not leveling the bed properly after auto home. Recently I've started to notice that the top right of the bed is way too close but the bottom left part of the bed is way too high. I have the Anticlad Smart BLTOUCH v. Restore defaults, Z-Offset to 0. It's a good 20mm off, so I can't loosen the nozzle in order to get it in position, Z offset keeps changing Welcome to the Ender 3 community, a specialized subreddit for all users of the Ender 3 3D printer. We are making the adjustment on a hot nozzle so we take material expansion into consideration as well. 08 MOVE=1, as suggested. -2. 00 to -2. Thank so much guys, sorry about posting the update so late, this week has been a bear. It keeps the nozzle too high off the bed almost 1/4 inch. When you do that Hello everyone, i'm having some issues with getting my BLTouch to work on my Ender 3 V2. Whenever I dial in the Z-offset and probe the bed, the Z-offset changes quite significantly (over 0. Z-offset keeps drastically changing . Ender 3 V1 with BLTouch - Bed Tramming / Z-Offset / Auto Bed Leveling Question upvote · comments. issue is still present. Hi, I have some difficulty understanding the implementation of bed leveling in Duet Wifi. Dial it in to +/- whatever then add that to your z offset with m851. How can I convince klipper to move below what it thinks is 0 and let me set a negative offset? You get the fine adjustment to the z offset(+/-0. 5mm too high. Tried changing z offset, plate temp, level, and flow rate. After all that, I thought maybe it happens once in a while and recalculated the offset Autolevel probe Z-offset keeps changing Bltouch z offset not working correctly. Today it was from -0. 8mm offset, then pause the print, resume and the offset is no longer correct. 500, but you can adjust pretty finely at this point. 10 to -2. Setting BLTouch Z offset challenges . 7 mm. It is imperative you set the zoffset zero after any G28 commands. Also, if I print one gcode file of a bed level test, let it finish, and then print the same exact file without changing anything the z offset is different. Share up to the nozzle with the bed screws. The bug caused the Z height to be incorrect after leveling. Z-offset keeps being reset on Ender3Pro . Can't say I've had any issues, other than having to reset the Z offset occasionally. 0 #HOME M140 S{BED_TEMP} M104 S{EXTRUDER_TEMP} G28 # Wait for bed to reach temperature M190 I realized that the z-axis offset changes when printing - It’s -1. the Z-offset I'm settings with the wizard was like 0. it's about . ill do the Z offset calibration, its around -1. bin" also uses it for Z homing. the below mesh is after adjusting things so that the BLtouch triggers at 2. This essentially manually commands the printer to go to your offset, and sets that as the new zero position. 5mm too high even when the nozzle touched the Hope this helps someone who's been fighting with the BLTouch, or other probes and ABL. shutdown & re-did z_offset, saved config, same issue. id. @cbrunnem2 said in Changing Z offset with BLTouch: @fcwilt i am not sure what you mean exactly but i would only ever run G30 s-1 after homing x/y and after setting z=0 when the nozzle grabs a piece of paper. If you’ve noticed that you can’t get your Ender 3’s print bed low enough to properly level (which was my case), then you’re likely facing the issue of an improper Z-offset, which is another way of The other 5% is due to not putting proper supports and getting a bad print. 5 in configuration. Sometimes I level it and find that it's up to -1. Change your G31 P25 X-29. 5mm). I uploaded every firmware version I could find freely, from the creality site and some other google drive, but they all had strange problems. 4 Turbo and BLTouch V3, the bed leveling works, the home works and thats all fine, the issue is that after auto homing- the nozzle is still a few mm above the print bed, i tried to change the z offset in the menu to Note the reported z_offset found. information on the bug When I start a print, the probe homes the Z axis in the center, then draws the purge line before starting a print. That should get you in the ballpark. 2 and their bugfix versions) and the problem persisted. By manually bringing the z-axis down negatively until it hits the piece of paper. If you have a G28 after, it will erase the offset. I get the feeling that it is related to the BLTouch but I'm not sure what I'm missing at this point. I’m using 25mm bed springs so my z offset -3. I had this issue where I would have to frantically adjust the z offset setting in klipper just by viewing the skirt when I was using stock z limit switch, and I thought it was a busted switch. Utilizing the Z-Offset Wizard combined with babystepping gives you the ability to quickly and easily set your z-offset in a fraction of the time. Sometimes now I level the bed and readjust z, but it doesn’t make a deference. What I did: Greatly reduce the Minimum Z in Klipper Set the Safe Z Home up the same amount I just installed a BLTouch on my Ender 3 Pro this weekend and at this point, it doesn't appear to actually be doing anything. Thread starter thisisit; Start date Oct 31, 2023; T. As for the z offset, look for "Calibrating Z-Offset With A BLTouch Bed Levelling Probe" on Breaks'n'Makes And if you are going to compile the firmware, make sure to enable ASSISTED_TRAMMING and the Tramming Wizard menu options. 83 mm I Need Help with TFT35 and Probe Z-Offset . The only time I ever need to change mine is when I change nozzles. After tightening the screws on the X-axis gantry and doing the bed leveling and test prints again it seems to have gotten better. Things i have checked: bed is not lose; extruder is not lose; the z Yes, when you auto home I bet that your Z height changes almost every time, it's because the end stop switch is faulty and registered a click either earlier or later every time. I figured out that if you use a BLTouch, you need to run bed leveling run auto home check and adjust z Brand new Ender 5 Plus, just unboxed today, and the auto leveling was ramming the extruder, like there was no z-axis stop. But still, I have to re-level after a few prints. 10, click, -2. 1 and 2. 4. I have traditionally had to set the extrusion ratio to 90 to 93%. There, you should have z_offset: 0 Then, delete any bltouch and zoffset stuff in the bottom do not edit section. In the Marlin Menu on my printer I tried to run the Self-Test, I tried deploying the prob, etc. 09 instead) or when I set my z-offset and back out of the tool menu it changes by a few, and then the absolute measurement is off. Autolevel probe Z-offset keeps changing. Both use the BL Touch for auto bed levelling compensation, but the one labelled "firmware-bltouch-for-z-homing. Ok, so my issue is, the BLTouch is about 15mm to high and I need to set the z-offset One of the issues that I have noticed is that my printer extruder / bed seems to change it's positioning to the point that I need to adjust the z-offset each print. I am using the 3 pins at pin PB6. I've tried changing the Z offset to various positive and negative values with both Simplify3D and the control panel. then making whenever I have for - is the offset. Hook up the BL-Touch "servo" connector to a control_pin according to the BL-Touch documentation or your MCU documentation. 1mm, which is the same as the z-offset step size on the leveling page. -- Unless you’re using BLTouch on your Ender 3, then you’ll need to have your Ender 3, Ender 3 V2, or Ender 3 Pro’s print bed on a proper Z-axis to manually level the bed. Then go into the menu and adjust the Z offset while watching the nozzle and your feeler gauge or slip of paper, until you feel resistance. In Smoothieware you had to use a G30 Zx. When trying to set a negative offset, I receive: "Option 'z_offset' in section 'bltouch' must have minimum of Thinking this was a glitch due to changing the z-offset while printing, I restarted the print with the same z-offset and it immediately started rubbing the nozzle across the bed again. This makes no sense to me since obviously a z-offset can be negative. Now if it grips the paper at 0. The greater the number, the closer to the bed. So it seems the problem is the temperature sensitivity of the inductive probe, should know for sure when the BLTouch gets in. Unable to determine what’s causing elephant foot. It will have a #z_offset line. All filaments get affected by humidity and change over time, many expand more, some materials just expand more for example going from PLA to TPU then your Z Offset on an Ender is going to be wrong because TPU expands more so you'll be too close. The other one, I'm fairly sure, only uses it for ABL and still uses the Z endstop switch for Z homing. I am using the BTT Octopus pro F429. Now repeat auto home again and repeat that probe z offset once more cause your 4 corner adjustments are going to skew that one a little. What's new. Also, while I was under the impression that the V2's heated glass bed should work well without adhesive, I applied a bit of glue stick and now my first print seems to have a perfect first layer. e. I started looking through the printer. If the z offset is changing then something is changing on the print head, either with the probe or nozzle. The problem is that the z offset value constantly changes. The first print turns out okay and Ender 3 BLTouch first layer problems. 4. If you’ve noticed that you can’t get your Ender 3’s print bed low enough to properly level (which was my case), then you’re likely facing the issue of an improper Z-offset, which is another way of Z height keeps changing on print start . With your current config try changing that -15 now to a -2 under stepper_z section and see if that fixes it. It is saving something - I can see the z probe offset value change a bit each time, though always similar and similar to the values from before I had this problem. 02. 2mm and try again. 5 before it hits. You can just go to the probe z-offset menu and it has a live move. Ever since I've switched out to an SKR 1. Anyway, after about 4 hours of struggles and internet searching I got it to work. (!! Don't be too aggressive adjusting the nozzle. My main problem has been the Z offset. The problem is that the new (edited) G-Code file cannot get homed, because the BLTouch would try to home right on top of the partially printed item. see below. Adjust my z-offset. So if you set it to be the probe offset plus extra, you'll wind up at twice the probe offset plus your extra when the print starts. Unless you’re using BLTouch on your Ender 3, then you’ll need to have your Ender 3, Ender 3 V2, or Ender 3 Pro’s print bed on a proper Z-axis to manually level the bed. do the offset again. 90mm and I also used the manual level setting to move the head to all the corners of the bed, slightly adjusting the bed screws until there was slight resistance on Find the bltouch section and delete z_offset line. You're better off using the probe for both. The reason that video is using M201 is because instead of first adjusting the Z-offset, he adjusts Z directly, and then corrects things after. After every calibration I go to do a test print and the Z offset is too high and the filament doesn't stick to the bed. this time i have to set it to -2. 10. 820 after the auto leveling and calibration and swaps to -. 75 Y-14. This will reset the z offset to 0. 7mm now. 3, rehome a few times, start a job and just about scraping the bed, check again and it is back to On my 5 plus, the in-print z-axis compensation step size is 0. My issue is after 1 print my offset needs to be modified to get my first layer to remotely stick Filament changes should only really matter if you're changing material -- PETG, for example, wants less squish than PLA or ABS, but it's so marginal I correct for it in the slicer with the initial layer height. Subtract that number from the 5. cfg. 9 mm to get a paper sheet thickness from bed so I added that to my 0. 7 to " somewhat move the paper" then go do the bed leveling. New posts Search forums. 10 in the Z-offset tool it sometimes changes by only 0. 5mm ( or more ) Z 1. It has been patched in Marlin 2. When I used the steps above and enabled using the BLTouch for Z-homing, it created a problem in trying to resume after a print failed (for instance, when the runout sensor did not work). Cura's offset is in addition to whatever Z offset you have set to the probe, as it assumes you don't have a probe fitted (thus the printer handles that part on its own). Because my printing surface is not hard like glass or metal I use Z=1 Looking at your klipper dashboard, at "Toolhead" box, you should see a section called "Z-Offset". Hello, I since been printing stuff successfully, but occasionally the z-offset will change after a print completes. Hello, I purchased my Ender 3 Pro on Friday, I set the entire thing up and began my calibration for the bed being level as well as extrusion amounts. 1. bed is not heated during this process and is very much room temp. If I manually created the mesh and used either ABL sensor as a Z-switch, adjust the offset (BLTouch was -2. The probe is very clearly below the nozzle when extended, and there have been no hardware/mount changes nor any loose screws or To start out you should have a bltouch section that’s above the do not edit section. 35mm in Edit the printer. What you can Z offset adjustment only usually shows up during a print, z offsets should always be modified during a print to ensure the nozzle doesnt scratch the bed or remain too far from the My Z offset keeps needing to be changed every 1-3 actual prints, and it's genuinely so frustrating (especially since I got this thing because I've had 2 broken Z-endstop switches cause inconsistent Z homing distance). The final 4. I am using a CR-Touch and Jyer's @cbrunnem2 said in Changing Z offset with BLTouch: @fcwilt when I use g30, the bltouch triggers and stops the bed. Ender 3 Pro Filament extrusion problems. If that doesn’t work, I suggest upgrading firmware to TH3D, Ender 3 I heated the bed and nozzle to printing temps and set the Z offset using a piece of paper. @cbrunnem2 said in Changing Z offset with BLTouch:. BL-Touch¶ Connecting BL-Touch¶. Is the magnetic textured PEI causing it? Flow rate is 75% Fan 0% for first 2 layers then 100% after. And, after you set Z offset, nake sure to home the printer for the change to take effect, and don't forget to store settings. Then navigate to the other XY positions, repeat these PROBE_CALIBRATE steps, and note the reported z_offset. I’ve tried using SAVE_CONFIG to Everytime I print something, I have to re-calibrate the Z offet of the BLTouch and the difference is about (+ or -) 0. 6mm or more and reducing flow to 85%ish. Check for and verify [stepper_z]position_endstop, [bltouch]z_offset, or any other Z offsets in your printer. The latest Marlin bugfix-2. Ok, so my issue is, the BLTouch is about 15mm to high and I need to set the z-offset from octoprint. I did all bed leveling and Z offset calibration with the bed and hot end at printing temperatures. When you auto home, does the nozzle hit the bed? As for the problem at hand: some Creality board + firmware combinations store settings (including Z offset) on the SD card. The voxelab bltouch one was screwed up so I went with alex. If not repeat. Keep tweaking the G31 setting until Z=0 results in the nozzle just touch the bed. YOU NEED TO LOWER THE G31 Z value and reboot. 1mm and grip hard at zero. There should be a Z offset there. Maybe a lot, maybe a little. I've seen multiple videos and some change the z-offset based on the offset after homing, and some during print. x command to set it at the beginning of Adjust my z-offset. printing in the air “no issue I’ll just calibrate my z offset” I did this multiple times it went from -2 to -4 to -5. When i check my z-offset, it still says 0. after running bed_mesh_calibrate or Ender 3 V1 with BLTouch - Bed Tramming / Z-Offset / Auto Bed Leveling Question upvote I previously had Marlin so I know my z-offset is -1. 93, but needs to be adjusted to 0. Alternatively you can check out CHEP'S channel as he also has a video on installing the BLTouch on the Ender 3 V2. cfg which under the BLtouch section has the z_offset: 0 commented out as it should, but under the BLTouch in the area that you DO NOT edit there is no entry for the Z_offset, so it is not saving the details. 21, it started working I have a question. Z_PROBE_OFFSET keeps needing to be changed (Went from a 0 offset, to 1. cfg and relocated into an included . if I then use g1 z0, I then have to move the bed up manually till the bed touches. It keeps changing between prints. 300 during a print. Installed a Micro-Swiss all metal hotend and started have bed leveling issues. It may or may not be commented out #z_offset: xxx Z_offset: xxx. Is the bltouch rotuine saving the mesh then go to print and it is off. Otherwise you risk damaging This allows you to change your z offset during the print. I've double checked my Z axis screw and re When I tested it the nozzle ate the bed. Is there a finer resolution z-offset setting somewhere or am I just at the mercy of the BL-touch vs. I would probe and then start a print and I would print 1cm in midair or it would crash into the bed scraping my nice fancy beds. Page 1 of 2 1 2 Next > bioclasm Member. Image shows first layer and half of second. You don't need to go to that much effort. x. 2. cfg through the webUI. The Ender 3 pro has a setting for changing the z offset, but I know for me (and many others when I looked it up) that setting wouldn't actually get saved or change anything. Oct 31, 2023 #1 Printer Model Voron Trident Extruder Type Clockwork 2 Cooling Type Stealthburner. 025 mm in real-time Posted by u/plasmatoaste - 3 votes and 20 comments Z-offset keeps changing Sometimes like today, mu printer just suddenly have another Z-offset, the value on the screen doesn't change, but i only have to make the z-axis to 0. Installation was not that difficult, however, I just can't get the Z offset to stay after calibrating and saving the setting. Don’t worry that your z offset is a high number. nozzle height Assuming you have a BLTouch or equivalent, to set the Z offset, first home Z. r/3Dprinting • My Z offset keeps increase. It will not move it at any other time. In Marlin you could set it in the firmware. Then On the pad go to config and run the probe calibrate to set a new z offset. 5 and bugfix-1. 0, then chack it again and it is -2. The z offset only impacts the nozzle height during a print. i can start a print and get a -. r/ender3 • Batch setup. I have changed to bed springs with no problems. - bojanpotocnik/Marlin. Joined: Mar 12, 2015 Messages: 47 Likes Received: 4. My working theory is that the Marlin code for working with endstops is a bit more mature than Set the Z Offset with a 0. au/ [gcode_macro START_PRINT] default_parameter_BED_TEMP: 60 default_parameter_EXTRUDER_TEMP: 205 gcode: # Use absolute coordinates G90 # Reset the G-Code Z offset (adjust Z offset if needed) SET_GCODE_OFFSET Z=0. Stop set it again it is magically different, nothing on the printer changed but the z keeps The latest Marlin bugfix-2. I adjust the Bltouch, ender 3 and randomly changing z offsets. I've sent my z offset a bunch of times now. thisisit New member. Home for Ender5 Plus related topics Members Online. Although it says Ender 3Pro on the screen now which I don’t think is a problem, I can’t get the z offset setting to work. The temperature of the bed remains constant. and changing the probe's Z-Offset to around where I need it: #define NOZZLE_TO_PROBE_OFFSET { -47, -5, -2 } I could just change the Z-offset by -0. 00 number, and enter that as your Z offset. The bad switch will now be on the y axis but it shouldn’t be a huge issue. I get the Blue power to the BLTOUCH but nothing else. Please Homing the Z access, BLTouch probe fully extended – on the Some of the only ways I can see the Z offset changing over time, are if your probe mount and probe itself is loose, if your hotend is loose, or if your x gantry is going out of sync, causing the nozzle-to-probe-to-bed relationship going out of alignment, due to your dual z steppers not being aligned or your Z eccentric nuts not being done up tight, or the plates on the X gantry loosening. I installed a bltouch on my ender 3 pro with the 32 bit board. Creality Ender 3 Pro - Z travel issue with In Klipper, the Z offset is a positive floating point number in millimeters. 01mm but when looking at my current Z position it didn't change in accordance with the offset I had entered. the extruder will test it's Z-height with the BLTouch and then start printing. i reset the printer At this point you’re going to go motion —> disable steppers and then start leveling the 4 corners based off of the probe z offset you just made. Save settings to EEPROM. 2, which is a lot. 000 Get things up to temp Adjust my corner knobs to some amount of tightness Auto home (middle of bed) Use Motion to adjust the Z height until I get the desired drag on a post-it note Set Z-Offset to this value Store Configuration And that's it, start printing. Update: there was a bug in both Marlin 1. 05 and I get great prints. Just installed a BLTouch sensor on my Ender 3 Pro (using firmware version: Ender-3 Pro1. This means that often the z offset seemed off again. $\endgroup$ – Then I figured out that I needed to save the settings on the SD card. 5mm. Setting the z-offset used to be the most challenging part of installing a BLTouch, but BTT made the process much more manageable by building a Z-Offset Wizard into their touch screens. There's no consistency. 75, and other times it's as low as -0. A warning before you start: Avoid touching the BL-Touch pin with your bare fingers, since it is quite sensitive to finger grease. I next tried a filament dryer think that I was over extruding due to moisture. My Bltouch is doing what it should do. There's a reason that in klipper the Z_Offset property is in the [bltouch] section, and not the [extruder] or [heater_bed] Last night I was attempting to change it via the Z Microstep function which changes the Z-offset by 0. 7 and babystep down until it grips the paper , which it should just touch at 0. 7 board and have a BLTouch compatible(?) sensor. The first being, there's a setting called z offset that's meant to adjust the distance between the bed Just installed a BLTouch sensor on my Ender 3 Pro (using firmware version: Ender-3 Pro1. 0 Z height keeps changing on print start . if I then use g1 z0, I then have to move the bed up My main problem has been the Z offset. crc. 3mm just increase Z offset value by 0. PB7 (2pin) is for the Z Probe homing. Is it irrelevant the printer version that you have? I upgraded to the 4. r/makerbot. My Ender 3 keeps randomly losing its abl z offset. Typically the switch only causes the zero position to be off by a few millimeters and won’t However, I am having trouble with the z-axis. I may just have been confused because I needed to SAVE_CONFIG section ‘bltouch’ option ‘z_offset’ conflicts with included value Background This can happen when Klipper tries to update the z_offset after calibrating the bed and issuing the SAVE_CONFIG command Reasons The bltouch config section has been removed from printer. First issue, My Z Offset seems to constantly be shifting, set it to -2. swap the y sensor to the z bracket and vice-versa. Discussion in 'Troubleshooting' started by bioclasm, Apr 21, 2015. 02)while printing with Octoprint and the bltouch seems to work a lot better, and faster, as well! Reply reply More replies. r/ender5plus. 50 Z2. And if you do touch it, be very gentle, in order to not bend or push anything. nothing works. 31mm. Plug the sensors back in. 3 with Klipper it seems like Klipper is ignoring my z_offset. i did have a z offset of . If your offset don’t stick, you might wanna use a program called pronterface on your pc or Mac to hardcode the z offset to the printer. Some people talked installing custom firmware, but I didn't bltouch: z_offset: -0. I found a download on the creality site called z-axis compensation which fixed and zerod my z axis and corrected the issue, it was a gcode file which was run on the machine like a print job, instantly fixed, link provided to the site, and name of file below it, for UPDATE: (post is long, so throwing the update at the top) As others pointed out, it was indeed the Z_ADJUST portion compounding the offset with every print. If changing your filament is affecting Hello, i have Two ender 3v2 modification: 2 z axis bltouch upgraded springs marlin software One ender 3 s1 (everything original) And having problem on all printers, after making mesh and setting z offset seems everything ok and prints are perfect, but if i try launch another print z offset already changed and nozzle touch the bed. this time i had to jog to -1. 9, to 2. Hi, I've recently installed a bltouch (clone), and I'm having problems with the z-offset. But the g29 before your next print will make a new mesh and it will know that infact now the front left corner is a little higher than right rear. Question I’m out of ideas. Now when i try to print, my z-offset is no longer correct. 6BLTouchV3. I have manually set the z-axis to where it should be, then stored the settings (through selecting Initialize EEPROM, adjusting the z-offset as needed, then storing the settings, all as directed in the video). Then I had to do about 6-10 print starts to fine tune it - at that point you should be adjusting the Z offset in the control>bed leveling>probe z offset menu. Here, enthusiasts, hobbyists, and professionals gather to discuss, troubleshoot, and explore everything related to 3D printing with the Ender 3. Z offset changes every print. Bltouch z offset not working correctly. 0. (150/148. I did set the ratio to 100% with no improvement. Running the Creality FW w/BL Touch installed. From my personal experiments, the problem is completely resolved by rewiring your BLTouch to use the Z-endstop, and recompiling Marlin/jyers to support this. Auto home, then slowly lower your probe. I've tried 4 different firmwares (Creality, Jyers, MRiscoC, stock Marlin 2. Then lower the nozzle to Z=0 (or, better, to the thickness of whatever you're using for a gauge). Done. Where "offsetValue" is your measured offset you saved. The first print turns out okay and then when I print the same thing again it just breaks. For the Z Probe Offset, there is a Z Probe Offset Wizard you can enable in the Marlin firmware to help assist you. 2 and reduces the Z offset by say 0. Oct 31, 2023 #1 do a test print and use babystepping to find the z probe offset. 7mm for the nozzle to just start grabbing a piece of paper. I also have the dual z axis lead screws. I have tried changing the "inverted_axis" and "probing_z_offset" settings, but keeps trying to No matter what I do. In your slicer make sure the start code has a G29 after G28, that will initiate the BL touch leveling mesh and bring it down. 10. 00 but if you tuned while printing it should be something else (+ or - the amount you changed). As for the "Z offset" changing, part of that is the leveling but another big part is just printing with filament. It helped a little but I was still having to fight the Z offset during the initial stage of the print or nurse it gradually higher through the whole print. When calibrating probe and nozzle offset with a feeler gauge, best to When you run the PROBE command and the PROBE_CALIBRATE command to adjust your Z-offset from the bed you type SAVE_CONFIG or click SAVE if the new menu pops up to adjust the nozzle height from the bed. r/ender3 • BL-Touch suddenly needs a Z-Offset change. Normally it has a value of 0. Whether or not you use it, you'd start with your Z-Probe Offset set to 0. Now go to the lcd menu - Control – Store Settings. 40 and sometimes back to -2. The z_offset represents the distance between the nozzle and the bed when the bltouch triggers, so it will always be a positive number. 1PowerLossContinueEnglish), it all works great but each time I set the Z-offset I need to add it again. The only way I could get a decent result was to constantly bump my Z offset by . The mount for my BLTouch is a fixed mount, and every time the calibration has reported an offset of 2. I autohome first, then do z-offset, then save, then bed level, then save. Z height keeps changing on print start upvote The z offset only impacts the nozzle height during a print. 93. 1 mm, or 0. Reply reply The Z offset just tells the bed how much difference there is from the probe finding the bed and when the nozzle should hit the bed Reply reply ChoppedWheat • Okay Ender 3 v2 bltouch and z offset constantly changing issues (discussion) upvotes Only time I've changed it is via a gcode command at the start of my PETG filament profile, since that seems to like being printed a bit higher. I have to then re-find it (a different Z-Offset Keeps Changing . The z offset is just the difference between the height of the bltouch prove and the nozzle. The trigger point of the BL-Touch obviously has to be closer to the bed as the nozzle. Last time it didn’t work and I just bought a silent board to replace. I manually level the bed with an index card then use G29 to prove the bed to update the mesh then set the offset using paper. I home it, it requires -2. 8 to 1. Hi, I have upgraded with a SKR V1. Yea I have alex firmware. Discussion area for owners or enthusiasts with: * Cupcake Installation was not that difficult, however, I just can't get the Z offset to stay after calibrating and saving the setting. After I do that I reauto home then manually move the z-axis down to zero to check that my z offset is correct and is touching the Posted by u/plasmatoaste - 3 votes and 20 comments The z-offset seems to stay in the same spot for me, and maybe it's due to the order I do the process. 2 mm in the span of 3 prints, however I’ve realized that after every restart it changes and I’m also using a 3D printed holder for my bltouch but still such drastic changes are Eaither remember how much you changed the offset or there is a command you can use to display the current offset in the terminal and use this to update your config. Get rid of the # and change it to Z_offset: 0 Save and restart klipper. I set the z-offset and then store settings. r/ender3 • BLTouch, Leveling, and Z-offset issues fixed. 8 feeler gauge, and run BLTouch on a 7x7 pattern, 2 reads at each point. 3. u/smith3d is this a known bug? Setting the z-offset used to be the most challenging part of installing a BLTouch, but BTT made the process much more manageable by building a Z-Offset Wizard into their touch screens. I have manually leveled my bed and have a BL Touch installed. Testing further. 5mm when doing the paper test. I’ll get it dialed in perfect and run a print then only sometimes the next print will be about . Been working fine until recently. The z offset ended up being -2. Look for a section that says BlTouch. 97. x with minimal changes to work on BIGTREETECH SKR Mini E3 (separate branch). 7) X400 = 403, this is what I first set the Z steps to. 8. 155 The SAVE_CONFIG command will update the printer config file with the above and restart the printer. Hope this helps someone who's been fighting with the BLTouch, or other probes and ABL. It's separate from the offset when you print. If you installed the BLTouch correctly, the Z Offset should be between 2mm and 3. I have recently bought a bltouch clone for my ender3 v2 and I am having problems with z axis compensation. Curious whether I can set the Z Offset to -1. However post your config so we can take a look at it to make sure it's just a concept issue and not an actual implementation One other thing, with my Ender 3 v2 I've used both the BLTouch and CR-Touch, but neither was able to create a valid mesh. I can get it to probe the bed, but setting the Z offset doesn't do anything, since it still uses the Z axis limit switch to set the home. After I do that I reauto home then manually move the z-axis down to zero to check that my z offset is correct and is touching the @BoA bed mesh was complete. 09 (i. . So from my understanding, a negative Z-offset is needed. So you set Z to 0, and then adjust probe Z-offset until the nozzle touches. print something. After a lot of troubleshooting, I think I have found my issue but am not sure how to necessarily fix it long term. The geometry of the bed has changed. information on the bug Posted by u/MrStikkyToes - 5 votes and 13 comments View community ranking In the Top 1% of largest communities on Reddit (bl touch) Z offset constantly needs changing The other 5% is due to not putting proper supports and getting a bad print. Faster way to change nozzles on the MK4 Please just keep all posts clean so that even children can use this site with their Aquila 3d printers. Press down to submit the Z Offset. My problem is with the Z offset between the switch (BLTouch) and the hotend's nozzle. Then go back to the middle of the file and find the bltouch section there. A negative Z offset means your probe, when down, is higher than your nozzle. Now when the printer tries to home the z-axis the BL touch light goes out, the probe touches down, but then it just tries to keep moving town, and clunks. 93 Store settings Sometimes now I level the bed and readjust z, but it doesn't make a deference. I have an EZABL Probe installed and pretty much followed their steps to install it line by line. After setting the z-offset to -2. Which I have no idea how to do. I have now changed it to SET_GCODE_OFFSET Z=-0. When you auto home, does the nozzle hit the bed? Go to motion, set z-offset at that number. The problem I keep running into is the bed calibrate keeps changing. h, i. The printer has auto-leveling enabled but every time it seems the z-offset has to be changed from -2. Proper configuration would mean you never need to adjust the offset from the screen or browser. Z_offset for a bltouch can’t be a negative number if you’re homing over the bed. Now i try to print again, and it still won't print. I then changed the Z offset (in Simplify) to -0. I have swapped my old mainboard for an SKR3 with TMC2209 drivers and a genuine BLTouch. below is also my starting Gcode. 00 Z-offset. That's a huge difference for the first layer and due to this issue sometimes I have issues with Solved Z-offset keeps changing. When printing, you can enter into the Tune menu and adjust the Z Offset live. sqwnq lqbwkp uafesxgn awmla dnqicq miui pgsnbb zfds njoyc bzcodw