Bltouch test results reddit. cfg, Ive run Probe_accuracy which gets me within .

Bltouch test results reddit 02mm during that test I'd have a faulty probe. 510250, median 1. So, I ask the another correct version. 2 Nothing was changed within settings between working and start of not working and physically all that changed was switching power on/off. Homing usually works but not always. 3 hours today so far trying to I have just ordered a sv04. I'm almost given-up of the BLTouch. I have the silicone bed springs installed. It should then proceed to probe the bed multiple times in a row, and when done, you will get a number telling you how different your probe results were. 001658 Baby steps - I have adjusted my offsets and its now probing most of the bed. Yeah I am using the magnetic build surface and I had been getting good and consistent results with until I installed the BLTouch. 7 Mainboard 3D Printer Company : Skophy Amazon Product Rating : 4. I also thought this might be a bent X-rod, but even still, it should’ve adjusted for that with the ABL probing. 019-0. For further information: I have a Ender 3 with the 32 bit board v4. Confirmed that each of the pins I tried was the The first one was the original firmware, without BLtouch function The second one was with the BLtouch function but it has the same issue that what you mention: On left side, the BLtouch went out of the bed and shock the nozzle. For me it probably the firmware that's dodgey as the ftp listed in instructions for the bltouch ceased to exist. Are you not using the glass bed that came with the V2? The process I used was as follows. A Subreddit for Ender 3 v2 users to seek help, share their creations and talk. Test results have shown that the strain gauge was the least accurate system in my shootout, but the rest were close enough to each other to be recommended as an improvement. 250mm. 011250, average 2. 02. Speed is limited currently to 33mm/s and acceleration to 300mm/s. The pattern is consistent, with the same corners bringing the same offsets, which for me indicates a mistake in meshing or validating that mesh. I got a glass bed and my leveling improved to a Min/Max range of about 0. This morning I noticed the sensor was not plumb to the bed. But honestly the ender3 is a beastmore than good enough to match or surpass ANY fdm printer for quality and speed. After 1. I have a BLTouch, silicone springs, and a PEI bed. I just tried to do a test print with my printer that I've been having some filament issues with today, and instead of automatically doing the levelling, the machine just dug the nozzle straight down into the bed. Ok, so apparently my text didnt come through, but the problem im having with my CR-10 MAX is that because of this Hero Me Gen 5 cooling duct my BLTouch had to move to the left. So I purchased a few and decided to test a theory. Is there any way to fix this? When I print a Bed Level Test with 9 squares on the bed, they are all very inconsistent. Welcome to the Ender 3 community, a specialized subreddit for all users of the Ender 3 3D printer. 005000, average 2. No change. It took me two evenings to get the BLTouch working (mostly because the newest Marlin doesn't natively support the additional sensor port of the SKR and I didn't know it). See full list on 3dprintbeast. Which means it has firmware. V4 means verbose level 4 (it will give you all the logs). What I Have Tried. (Running the bed leveling test print a second time does not produce the same results, which is maddening). Both the main menu z offset and the mesh fine-tuning the z offset are calibrated with a piece of paper. The test results indicated a failure to detect any trigger despite multiple attempts. I checked my bltouch and it doesn't seem to be a real thing - at least if you look at the price. Here’s a simplified process: Initial Setup: Make sure the BLTouch is correctly mounted and the pin is about 2 mm above the nozzle when retracted (1). I have an Ender 3 with the silent 4. Alright, start by doing a repeatability test(M48, you can also access it from the LCD menu). relevant config: If your axis is binding, chances are it doesn't move the correct amount, and then the BLTouch might do what it should but the results are wrong because of binding IF your axis is binding, check the brass nut, re-grease the rod and check that the bracket the rod goes though is a perfect 90 degrees. Levelling wise everything is perfect. And even after printing a PERFECT first layer test print, I ask it to print the exact same thing a second time. Running a Hot test now, readjusted Home for the expansion. I appreciate the help. Crypto. I'm done working on it for the night, but after some browsing of others' problems, I think I'm decided that I just didnt level the bed enough to begin with. 010 Recv: Standard Deviation: 0. 780500, standard deviation 0. To check for hardware issues I've homed a bunch of times without issue, and more importantly I've run a PROBE_ACCURACY SPEED=5 SAMPLES=50 SAMPLE_RETRACT_DIST=2 test on the same location on the bed where the mesh leveling starts to check for bad connections. I'll try to acquire a real thing if I find one with decent price - or actually with decent delivery fee (15€ seems a lot for 35€ bltouch especially when you can send Using these methods I could get 2 or 3 small prints before having to level the bed again. 230 Range: 0. 916250, range 0. Connection Setup: I've connected the BLtouch to Servo0 Pin 11 and the former Z-min pin. using index: 0, deploy angle: 10, stow angle: 90 . Solution - check connections and solder all the way if possible 3 - your bltouch install is too high or too low relative to the nozzle. My basic BLTOUCH configurations: #define AUTO_BED_LEVELING_BILINEAR My BLTouch has a standard deviation less than 0. 10. This is the test print for bed level where it prints one layer squares on each corner and one in the middle (I just put them together after printing for the picture) Standard settings, normal Creality PLA, nozzle 200 and bed 60. 002 which is acceptable but again everytime i go to print the Z offset is off full millimeters. 021 on a 10 point test and 0. /r/3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices. I tried screwing the grub screw deeper into the BLTouch unit to see if that improved sensitivity. 922250, median 2. 2 // (mm) Default layer height for the G26 Mesh Validation Tool. Any advice on how to improve these results will be greatly appreciated. 2 board because the x control went bad, so I swapped it with a new SKR Mini E3 v3 and since then I have been struggling trying to get my bltouch sensor dialed into an acceptable deviations and keep getting different results. If I try to home Z, the head crashes into the bed. >>> M280 P0 S90 SENDING:M280 P0 S90 +++++Nothing Happens SENDING:M43 S0 Servo probe test . On to a real print, i setup a new print, adding G29 to my "custom gcode" in my slicer setup for my printer (prusaslicer) after the standard G28. 012500 If you just try all possible settings it's not going to work (and you can even damage things). 2. 1 which is high, the real BLTouch is marketed as being more accurate with a Std Dev of 0. I used the following M48 G-code to just test the reliability of my BLTouch and z-axis: M48 P10 V1 E L0. I got a standard deviation of ~ 0. I would say the measures shouldn't be more than 0. Recv: Mean: 0. I got a 3rd version (with some excuses) and that one looks working. Now I am slowly testing some basic things, this is a weird behavior: I did the Z Off-set adjustment, it was -2. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. But NOW it prints too high for the filament to stick. Doing a cold bed/ nozzle test resulted in better results this go around. Hit an adjustment snag, screw holes do not allow it to be perfectly plumb. probe accuracy results: maximum 2. 005mm, and that's the generally accepted range for an M48 probe test. 05+ on a 50 point test. I had no issues prior to installing the BLTouch, even when printing pancakes. Then run G30 S-1. Some pretty good, others useless. Firstly, if you're having failed probes with your BLTouch on an SKR Mini E3 -- update your firmware to the latest version of Marlin. MicroProbe came out as a winner with smallest deviations in readings as seen in the chart. 783000, minimum 4. The results are within acceptable range where I ran the tests on the bed. The BLTouch doesn't send the position to the fiirmware. I go through all BLTouch calibrations per the Klipper Website and yet after save_config and going to print it rams the nozzle into the bed. Zombies, Water Blasters, and much more! I just installed a BLTouch on my custom DIY openbuilds printer. 2 board. New comments cannot be posted and votes cannot be cast. When you google about BLtouch not working right or working intermittently every result is about the wiring. I’m so close to removing the BLTouch and going back to stock firmware to see if I can get better results manually and not relying on ABL. I can run PROBE_ACCURACY with nominal results (probe accuracy results: maximum 4. latest print was off 2. I don’t use BLTouch, I’ve got an EZABL and I’m running the TH3D firmware instead of vanilla Marlin, so there may be some differences for you, but here’s how I’ve got it Welcome to the Ender 3 community, a specialized subreddit for all users of the Ender 3 3D printer. . It's my first time using BLtouch and I have tried multiple firmwares with no results (official creality, Smith3d and currently Jyers). What I expected to happen with the bltouch is that it probes the bed and then the mesh requires no manual modification to get a perfect first layer. 207500, minimum 2. Assuming the probe appears to power up, self-test, and deploy and retract, you can be confident that at least the three wires for GND, +5V, and the control (servo) signal are correct. The Standard Deviation is pretty solid for me not to continue. I've got my BLTouch wired up, and I've got Marlin 2. The Z positions seem to be increasing… Im currently in the midst of my first benchy so results are still TBD but at least the damned thing is printing! If you have trouble getting the BLtouch to do the self test when powering up, then your wiring is backwards or wrong. 5 years of completly trouble free service I decided to treat my Ender 3 Pro with a original BLtouch and it`s been downhill from there on. 090756 Optimal m48 test results with a bltouch? Trying to diagnose an auto bed leveling problem, and I'm pretty sure my m28 results are not good. If I saw 0. Some notes: I've triple-checked the wiring. 2mm printing height Printing with PLA on 195 degrees Celcius Slicing in Cura 4. I had to flip my wires and wire them in the exact opposite order: White - orange black - red brown - brown PS. Just done another accuracy test and the range is way off what is considered acceptable, which according to the Klipper docs is 0. 007500, average 4. Start by doing that and then post what it returns. Run some test probes to ensure your getting consistant results. Got the bed leveling right and it's printing like before now ☺️ Revived my Ender 3 Pro to the latest and greatest Klipper version and now my BLTouch is very inconsistent. Commands BLTOUCH_DEBUG COMMAND=pin_down and BLTOUCH_DEBUG COMMAND=pin_up works as intended, QUERY_PROBE always reports triggered. The results are also inconsistent: It will fail on point number 2, then the next time point number 8, then 9 and so on. 401250 Min: -0. Anyone not raving about the BLtouch gets downvoted. One of the common manufacturers is uxcell. My worst results where: Mean: -0. x version. Do any of you gcode wizards have a good start code for the bltouch abl? I used to use a nice one I found online that would heat the bed to 50 and the hotend to 180 before beginning probing and then finish heating all the way while probing was going on. 1 BLtouch V1. 1mm, however the results of a single-layer test print will always be identical for everyone. Test Print: One side barely with anything (too close, touching the bed) and the other side loose/too far. Maybe this bltouch is just a poor, useless copy which can't accurately probe. 002000), but when running BED_MESH_CALIBRATE or SCREWS_TILT_CALCULATE I get very inconsistent results. They also report data rather than raw voltages. Everything appears to be tight and firmly mounted. It "works" as in it probes the bed and saves the data, but the data is so innacurate that my nozzle is too close to the bed on one end and ~2-3mm above the bed at the other end. The BL-Touch successfully probes a point, then when moving to the next point it will touch the bed and the pin will go in, but the printer stops with a failure before it can go all the way in. 775500, range 0. 285 Standard Deviation: 0. I can still return the BLTouch, and try a different one to see if that fixes my issue. I used to the stock effector and I assumed the BLTouch would make life so much easier. First one was bending too much, so bltouch gave inaccurate results and nozzle occasionally hit part. it's not clear if your Bltouch sensor was working and then stopped working or if you are trying to install the Bltouch sensor into a existing 3D printer that did not already have the Bltouch sensor installed if the later is the situation then you might need to reflash your motherboard with a newer firmware to add support for the Bltouch sensor I saw somewhere on reddit someone mentioned remagnetising their BLTouch to improve accuracy - so I removed the grub screw & the pin, and stuck then onto a neodymium magnet overnight. 1) Probe does not deploy, but does during self test at power on When i run a G28, it homes X and Y and fails on Z due to not deploying probe. It only sends the trigger to the firmware. After poking around about the BLTouch probe and seeing such a huge discrepancy in accuracy and experience, I made a realization. I turned on my printer after getting home from work the other day to start up my next print, and the BLTouch does it's self test, but it doesn't work after that. 927500, minimum 2. Welcome, Foam Warriors! This is a place for all things foam-blasting! Nerf brand blasters, alternative-brands, modifications, community made designs, competitive wars, Humans vs. Now to the problem, the probe is failing the self test it does at startup. 203K subscribers in the ender3 community. So much so, that I've enabled high-speed probing in my own config. Have setup two BLtouch sensors and a inductive probe. 202500, range 0. I was able to fix the errors now. 003172 Test 4. I even got a new BLTouch to plug in to see if maybe something happened with the sensor piece itself since it would be sticky at times and not be able to self test, but same thing still. In the picture provided, I set the Z probe offset really high and adjusted it while it printed, which resulted in a perfect middle square, but gave bad Test Results Overview: The servo probe test runs (the pin deploys and stows as expected) but doesn't sense the trigger. An odd thing I am now struggling with is Z_PROBE_OFFSET_FROM_EXTRUDER - the BLTouch in its retracted position sits around 2mm in above the nozzle - and about 2mm when extended. As I said, I've been through this setup 3 times and I can tell you that I didn't really get the documentation at BLTouch 3. Picture of the issue. probe accuracy results: maximum 1. Had to update to the correct firmware which was the "4. Auto bed leveling must enabled (I get the best best results by using the 9-point probing) and the XY-offset between your nozzle and the tip of the BLTouch need to be correct. using bltouch results in some parts being level and others to far or to close I’m getting inconsistent leveling with in one print, when I do those print level tests 3 out of five tiles are all at the same time to close, at the right distance, and to far. I figured I would share anyways. 2/V4. 37K subscribers in the ender3v2 community. cfg, Ive run Probe_accuracy which gets me within . Having an issue with my bltouch on my ender 3 pro its not at all adjusting properly. Home the printer then move it to roughly the middle and lift Z 5mm (G1 X110 Y110 Z5). Here are the results from 3 back to back M48 tests. Now the only thing to do, is to make sure, all marlin settings are correct. Followed Teaching Tech's BLtouch troubleshooting guide: BLtouch start-up self test occurs successfully M280 P0 S120 extended self test occurs successfully M119 returns: x_min: open y_min: open z_probe: TRIGGERED I have my z_min undefined and the probe is stowed so this is correct M280 P0 S10 successfully deploys the probe 10 votes, 30 comments. 4mm nozzle, 0. But if I disconnect the signal wire (not z stop, rather Servo), then the self test succeeds. It’s really frustrating that I’ll get an ok print and then I’ll adjust something on the printer to try to improve it and instead the next prints are completely ruined. bed, just go inductive IMO, much less hassle and no occasional failed probe. When issuing the query_probe commands, the probe always reports "open" regardless if the probe is retracted or deployed or pushed up until the led is on. With a sample set of only three devices, it's not huge, but the end result if you don't want to read too much more: DO NOT touch the BLTouch pin. 1 SKR mini e3 V2 Ender 3 pro I ran M48 repeatability test on two bed positions, 20 iterations each. 010mm. Then, in the last two weeks, it's been acting up really bad. the best way to mitigate this problem is to tighten up the rollers on the left side REALLY tight, and loosen the ones on right side until they're just making contact on b A BLTouch and all of its knockoffs do a poweron self test and have configuration options. yea, I don't know what to tell you. Although, even with my knock-off, I'm getting decent results: probe accuracy results: maximum 2. I installed it yesterday using the BLTouch guide on Thingiverse. Using an flsun mini kossel with bltouch on a custom printed effector. Let me know if there are other details you require and I'll provide those! The bltouch responds appropriately when issuing the "bltouch_debug command=pin_up" and "bltouch_debug command=pin_down" commands and deploys and retracts properly. 9 recompiled with the new settings and running, except the BLTouch doesn't respond. Well, it was z-rod coupling slipping, i had it checked, but now after I fixed it with locktite, results are finally good. Now the BLtouch is stuck withdrawn. 0. Solution - manually level your bed 2 - a connection in your bltouch wiring is coming loose during the travel of your print head. I ask this because when homing Z axis, the BLTOUCH is in the middle of the bed, but not the nozzle. Max deviation is 0. 7 Ender-3 32bit Marlin2. When I use auto-leveling I am getting an inconsistent result. Stuff that i've tried: Leveling the X-Gantry PID tuning Nozzle swap Anyone else having inconsistent results with BLTouch on a textured side of glass bed? I've been having issues with my bltouch being inconsistent from print to print. Testing a BLTouch with Klipper involves several steps to ensure that the probe is functioning correctly. 202500, standard deviation 0. I tried this earlier, it responds that it's on. Finally decided to do a repeatability test after playing with the z-offset for days. Manually leveling before print using paper method, test print, and bed visualizer plugin for octoprint Slowing down my probing and probing 3 times at 25 points Have you done an M48 probe test to confirm you're getting consistent probe results? You're levelling it pretty close using the [prepare / manual levelling ] menu before meshing and before printing? Your g-code seems fine. 0 It has never really worked as I expected; BLTouch levelling before each print on glass, and that will result in an even layer. Edit: lol, wtf is this comment thread. Check the wiring. 015 Max: 0. Is there a way to test the BL Touch without plugging it in to the motherboard? Would I need a 5v power supply to do this or can I test another way? Also if I were to connect the 5v will this cause any harm to the BL Touch? Trying to make sure I know what's happening before I get new equipment. While you arte correct about this, it doesn't change u/theneedfull's point. Potential future upgrade ideas include swapping out both of the hotends with v6 clones, replace the fans, cable management and replacing the silicon filament wipers with brushes. 2 and custom Marlin-bugfix-2. There are different commands to enter to be able to test the probe. I have the Ender-5 Pro. 461 votes, 83 comments. Just gotta mess with those bed springs and try to get it level. That's pretty much it. The other two wires are polarity conscious, unlike a simple switch. 524000, minimum 1. Did a simple print also with G29 added, and things seemed good. I've had all these happen Name: Creality BLTouch V3. Jan 19, 2023 · The BLtouch self-test is a process that the BLtouch auto bed leveling sensor performs once powered on, where the sensor pushes the pin and pulls it up a couple of times to ensure that there are no issues with the movement of the pin. 0 that is about a year old. I went ahead and did a manual mesh adjustment, point by point (this took quite a while) Test print was equally horrible. Depending on how stable it feels I might do the z axis frame Business, Economics, and Finance. Here, enthusiasts, hobbyists, and professionals gather to discuss, troubleshoot, and explore everything related to 3D printing with the Ender 3. 496500, range 0. 025 Range: 0. Results are similar running 3x in succession. Here's a really thorough video on leveling too The linear rails eliminate having to worry about replacing wheels and they make the machine slightly more rigid. This should deploy the probe and give you back what the offset should be. After reading about a bunch of people having to change the connected pin, I tried changing it to X_MAX Pin (PE4), and even the Servo4 pin (PG5). Tighten adjustment knobs all the way, and then back off the left rear (as looking at the front of the machine, this is where the bed heater plugs in) 2 turns, and the others 4 turns The exact ones I bought on Amazon are unavailable now but if you Google "yellow ender 3 bed springs" you'll get tons of results. BLtouch can absolutly be a PITA to get working right, and having a low deveation. 779500, median 4. My values were really high after doing a full sensor test with the BLtouch. 003571 Here's the deal: I recently ran a diagnostic test using Prontoface, and unfortunately, it seems like my BLtouch probe isn't functioning properly. #define MESH_TEST_BED_TEMP 60 // (°C) Default bed temperature for the G26 Mesh Validation Tool. 1 Auto Bed Leveling Sensor Kit for Ender3 V2/Ender 3/Ender 3 Pro/Ender 5/Pro with 32 Bit V4. Hi, I hope you guys can help me. Brown-yellow-red-black-white on the BLTouch (looking from the rear), brown-yellow-red-black-white on the mainboard. They fix various issues with the STM32-based boards and the BLTouch; it should result in very reliable probes. parts of the test print are decent, parts printed into thin air, parts squished to nearly damage the bed. But by doing so its first probe point now falls off of the building plate which results in the nozzle crashing into the bed when auto leveling. BLTouch V3 Problem. I don't have any idea what the problem might be. It levels the bed at 56 points (yes, you read that right) because I had this issue before when I initially installed my BLTouch, but I ended up fixing it and the BLTouch worked perfectly. I flashed the newest marlin firmware a while back with the preset configs and some small changes. Setup a bed leveling test print using the additional G29 command for the grid bed leveling and got that done. I also changed X-axis stepper motor to E3d compact but powerfull and it solved skippind steps. After ABL, my first layer test prints are perfect on the left side of the bed, but consistently printing with the nozzle too far on the right side of the print bed. Always same result. 922500, standard deviation 0. #define MESH_TEST_HOTEND_TEMP 205 // (°C) Default nozzle temperature for the G26 Mesh Validation Tool. The test completed all samples without issue, so I think I can rule out a bad connection. it does the g29 at start of print with 9 points total 3x3 grid and then I get this loose on left of bed tight n perfect right of bed I have even manually adjusted before this print here to try and fix manually during the print and before the print but on next print it does it again so I need a permanent fix There is a plug-in for Octoprint called Bed Visualizer that will show you the results of your mesh on a graph, which of course would make random high points stick out. I can maybe get a full 5x5 probe every 20 attempts. 020750 Min: 0. Posted by u/Ruhex - 2 votes and 5 comments Running Klipper with my Ender 3 and been using a BLTouch no problem since I made the switch to Klipper a couple years ago. Any suggestions would be greatly appreciated. I installed the BLTouch. Edit: this is on an Ender 3 pro with the 4. 44. 027500, average 1. I built this printer 3 weeks ago and finally figured out how to level the bed this week. I have an Ender 3v2. Instead of flashing the Merlin version supplied by Creality I modified my TH3D configuration. 203500, median 2. Testing it with a straightedge and running several test prints without using any kind of bed levelling produces really good and even results. The nozzle is too high off the bed in the front left corner and scraping the bed in the back right corner. 1 with transfer board TMC2225". In an attempt to make my life easier I ordered the BLTouch kit sold by Creality. 02mm apart. Its a genuine BLTouch (not 3. The BLtouch would self-test with no issues 99% of the time. 4mm for the bed mesh. So should I try to put the nozzle in the middle and then measuring the offset, or just measure the offset when BLTOUCH is in the middle and in my case the nozzle is at -42 offset (this is what I did). 50 consequential readings. In my experience with CR-10s, this problem was a result of hysteresis (like backlash) on the right side of the x gantry. The result in my case clearly shows a malfunctioning sensor. I replaced my Bigtree tech skr Mini e3 v1. The probe will not deploy at all. I was finally able to test the new BIQU MicroProbe and here are the results Comparing genuine BL Touch, 3D Touch and the MicroProbe. Crazy. I've a BLTouch clone and the Std Dev is about 0. 7 board. With Unified Bed Leveling it probes multiple points and generates a mech of the bed to compensate small height differences. Sometimes it thinks one corner is much higher or lower than it actually is. 0. Edit: 17/12/2020 - As it turns out the bed itself is as-close to being flat as when I bought it 3 years ago. Having trouble on getting the BLTouch reliable to work I compiled Marlin with Z_MIN_PROBE_REPEATABILITY_TEST enabled an ran multiple M48 tests. If you have a flex or alu. 1mm each time I tested it with a homing speed of 240 mm/min, I'm sure I could get it a bit more accurate with a slower speed. Official BLTouch Creality Glass Bed 0. I've reviewed a bunch of online tutorials and the documentation for the mainboard and the BLTouch, without finding an answer. Yet my problem remains: Nozzle distance is not consistent. #define MESH_TEST_LAYER_HEIGHT 0. Here are my initial results from BLtouch 2. Yes! It’s printing, but i’m struggling with mount design. Currently I'm looking at the sensor itself acting up or perhaps a firmware issue. Failed to verify BLTouch probe is raised; retrying. What's do you get for the Probe accuracy test, with g-code M48. The results of those tests determine which setting you should use. Archived post. Mine occasionally has an outlier among 10 results. 515 Max: -0. In your start G-code G28 needs to be followed by G29. Just the difference in "slight" between the touch of a large man and a small child could result of a difference of more than 0. I've tried several times power cycle, if briefly shows logo on the screen and then shuts off. 006210. 509000, standard deviation 0. Do a G28 first (it will home the printer) to run the accuracy test from a known location and then issue: M48 P10 V4 P10 means it will probe the bed 10 times. com Sep 1, 2020 · I'd like to check that the BLTouch is actually sending a signal to the board, but I'm not sure how. 3. So I readjusted it to be better. But that test really only tests for the ability to hit the same mark and return the same value. Auto leaving only works too a point, then it will fall. I have also leveled the corners manually. Run it a few times and even move it around if you want to see what results come up. Ive tried adjusting my probe offset in Printer. The CRTouch is supposed to be even tighter still. I don't understand what is happening. Welcome to the Ender 3 community, a specialized subreddit for all users of the… I have tried just slowly lowering the Z-offset and doing a test print but even when I found a Z-offset that worked, I ran the test again and it scratched my glass bed. Here's a snippet of the test results for reference: Then I've started printing first layer adhesion test (25 squares) and after printing 21 squares printer shuts off. nnq ckafdppy aysxvz bybv tcjcr hibdem lqfht pafcrym hrqebcfu sdsatvvd