I am using Marlin bufix-1.1.x and recently upgraded from a capacitive sensor to an original BLTouch from Antclabs. I've got the bed as flat and level as I can get it. the pin while retracted should be 2mm +/- .5mm from the bed with the nozzel touching the bed. And after finally mounting it I had to set " Z_PROBE_OFFSET_FROM_EXTRUDER" to around -2.0. Since my settings are pretty good using the Babystep Z (with my firmware options simply called Z Probe Offset), I haven’t actually tried using a cube of known size to set the offset. So, with my "The sensor is 3-4mm above the tip of the nozzle!" The Z offset can be a bit tricky, as the probe of the BLTouch extends below the nozzle when activated, so you’ll need to find the distance between the probe and the tip of the nozzle when the probe is fully extended. I've been doing single layer test prints trying to get my Z offset dialed in. What if you are not getting an accurate I have a Kossel Delta, had the (original) BLTouch 3.1 working perfectly under Marlin. Getting the most out of your BLTouch on the Duet. Sign in Have a question about this project? -1.4 in this example Control > Store memory Fine tuning – after initial setup. The BLTouch is very accurate and consistent after the initial setup This issue has been automatically locked since there has not been any recent activity after it was closed. to your account. To manually adjust the z-offset is to first auto-home your gMax. We’ll occasionally send you account related emails. 1. Successfully merging a pull request may close this issue. Default configuration, using only Z-endstop switch as Z-endstop. From this point onwards, the following is also uncommented: In every of the following options, after homing X and Y, printer goes to the center of the … It is also on Home Z command. I have klipper working fine, the BLTouch probe goes up and down, but always reports "open". I used the wrong data sheet. Check that your Z min Software endstop is not Yea the z offset is wrong, 0.08 means that your bltouch is almost at the same height as the nozzle. Raise Z and deploy the probe. Have you a solution ? Once you have it set properly the bltouch is very accurate and everything else works. Z-endstop switch is monitored when moving Z axis down via LCD menu or G0. Again, it’s very important to heat up nozzle to 180-200 while using Z-offset Tool (if there is PLA in nozzle) Else the Z-offset will vary a lot depending on the leftover material stuck on nozzle tip. 3. The only other firmware I got working was the bigtreetech BLTouch one, however the BLTouch didn't work on it. After trial and error, my Z offset is set to -3.6 I was quite out of the tolerance. It was trying to home using the Z-Stop not the BLTouch. BLTOUCH seems to startup fine and work but wont stop the z axis. The easiest way to get the Z offset value is to: Home the Z axis. Move Z down slowly until the probe triggers. 03/12/2020 The BLTouch is an attractive Z probe option because it works on any surface, is relatively cheap, and provides good accuracy and repeatability. With the Z probe deployed (if applicable) but not close enough to the Printer homes X and Y, then Z at the same spot (X = 0, Y = 0). The BLTouch is an attractive Z probe option because it works on any surface, is relatively cheap, and provides good accuracy and repeatability. @davidzohar This still does not fix the Z offset missing from the menu. And when I set this value to +2 the nozzle stops at +5mm above the bed! Reply, Please use the forum for support requests. I am also using 1.1.x bugfix with my bltouch no issues. When I tried to do a DELTA_CALIBRATE I While the firmware process is made easier with the help of Cheetah 5.0 , our Marlin variant, there still seems to issues because the BLtouch is something that is not easy to install/ configure. Now, you're going to adjust the Z-offset on your Ender 3 V2 so that it's flush with the print bed. And when using -1.xx the nozzle is getting much more closer to the bed! The sensor is 3-4mm above the tip of the nozzle! Z-endstop switch is monitored while homing Z. privacy statement. More often than not, we see BLtouch(s) not working on people's machine and with it, comes a series of hair pulling frustrations and some even toss their BLtouch(s) into the bin/ out the window. https://www.thingiverse.com/thing:2618601. But there seems to be some issues with the Z offset when using a BLTouch. When running g29, it probes two points before just stopping. Please open a new issue for related bugs. I have a theory that it could be because the bltouch is 3DTouch can greatly improve the printing precision of your 3D Printer. Probe responds to M codes for deployment, stowing, and shows no errors, but when it comes to levelling the probe doesn't seem to properly communicate that the Z My Configurations Marlin 2.0.5.3 config.zip Steps to Reproduce Power up the printer If the probe needs to be deployed before use (e.g. Already on GitHub? I home the Z axis (middle of the bed) adjust the Z-offset. The original z axis switch will stop it just fine. You do not need to plug it into the z-stop, and you can and should retain your existing z-stop switch. See here for a firmware upgrade walkthrough. 3DTouch features simple, smart and precise. The next step is to set the offset of the BLTouch using the X and Y distances you should have measured while mounting the probe. So I disabled the endstops again and lowered the nozzle. My lcd don’t get on when he’s plugged in. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. I've got a CR-10s with a BLtouch mounted on a Petsfang Bullseye. Then go to Menu>Prepare>Move Axis>Z-axis>0.1 mm and start to move your hotend down. :( :( Using this new values results in a much larger gap.... :/. Z offset = -1.4mm Control > Motion > Z offset and enter the value obtained above e.g. Reply. 2. Suddenly I got an offset of -1.29! :(. 3DTouch is an auto leveling sensor for 3D Printers that can precisely measure the tilt of your print surface. (5.2 => -5.2) Set with M851 Z-5.2 and #define Z. BLTouch), test the deploy and retract functions, by sending M401 to deploy the probe and M402 to retract it. On version BLTouch V3.1 there is no trace to cut, Mitch Litle - And if you do touch it, be very gentle, in order to not bend or push anything. I've added a BLTouch, how do I set my Z-Offset? BLTouch is ignored (not deployed nor monitored) while homing Z. There's a great YouTube video on this by 3DMN. That is very strange because "-x.xx" seems to be "sensor BELOW the nozzle". After a reset I executed "G28 Z" followed by a "G0 Z". 4. Adjust the Z-offset down a little at a time to avoid running the … Lastly, I used the Level Bed Corners menu option I enabled in the firmware to manually level the bed as well as I could and then re-did auto bed leveling so that the firmware would have less to compensate. Thingiverse is a universe of things. The aim of this guide is to bring auto bed leveling to the masses by making it simple and affordable for everyone. You'll need to connect a computer to the USB port of the printer, and have a … Bug Description On Auto Home, the Home Y and Home X work fine but the BLTouch does not deploy. BL Touch new 3.0 units not working with marlin on homing. BLTouch version 3+ requires no modification to work with the Duet. It could work with nearly any kind of bed materials, such as glasses, woods, metals and so on.The main functions and controls of 3DTouch are the same as most auto bed leveling sensors, which consists of a RC servo and a micro switch.Thus,3DTouch can be used on almost every 3D printe… SIMPLEST Bltouch/3Dtouch guide for Creality CR-10/CR-10s/Ender 2/Ender 3 printers created by Danny Walmsley. So I executed "M851 Z-1.09" and saved this value with "M500". The nozzle moved down and the gap between the nozze and the sheet of paper was larger than before. By clicking “Sign up for GitHub”, you agree to our terms of service and Hi, mi duet shutdown when I put the red pin (5v) on a duet 2 1.04 and a BLTouch 3.1 from antclabs. But it isn't! 3 comments Comments Copy link ikarisan commented Mar 26, 2018 Hi! You can't really use the BLtouch without the Z offset. After i installed the bltouch and removed the "z axis limit switch" it went directly to a drawer which is not a good place to put a fully serviceable part. Can I try with an external 5v ? But there is a better way now: as of version 2.0, the SKR mini has a full, working port for the BLTouch. https://forum.duet3d.com/. However, it can be tricky to get working. On the left side it scratches, on the right side it doesn't touch the bed for 2mm. However, it can be tricky to get working. It's as if G29 is succesfull, but The currently sold "BLTouch smart" needs a distance of 2.5mm +/- 0.5mm! This guide will provide some troubleshooting tips for the most commonly encountered problems. Place a piece of paper between the hotend and the print bed. Thanks! Take the current Z value and negate it. That gave me the needed hint! Guillaume Rimlinger - This guide will provide some troubleshooting tips For me, the Z Offset was initially set to -0.2, and the calculated adjustment, per the instructions, told me it would now need to be -2.9 – this just had filament not even hitting the bed. Download files and build them with your 3D printer, laser cutter, or CNC. Adjusted z heigh hop between probes, still not working. You signed in with another tab or window. I have a replacement probe that just arrived and will swap tonight in case it is a bad part, but if there are any The text was updated successfully, but these errors were encountered: Chances are your bl touch is too low or too high. Connecting BL-Touch A warning before you start: Avoid touching the BL-Touch pin with your bare fingers, since it is quite sensitive to finger grease. No BLTouch LCD menu. 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