This guide is focused on the setting up Marlin 1.1.x with your wired and working BLTouch. Make sure your homing macros use G30 to home Z and not a G1 S1 Z movement. Control > Restore failsafe (start with default settings if first installation) Prepare > Auto home Prepare > Move axis > Move 0.1mm > Move Z Slowly move the Z axis down until you have the correct first layer gap (paper or thin card method) and the quality of the prints has been drastically improved. Problem with BLtouch and Z-offset. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. Solution: Downloaded the latest firmware designed for BL Touch and Ender 3. You have to determine the distance between the probe and the tip of the nozzle when the probe is fully extended. The community of r/FixMyPrint will help you fix your 3D printer settings for the most optimal prints. Change ), https://drive.google.com/drive/folders/1lXXDpAtkGP2KVKi4O1yqBInqunWGrWvN, https://drive.google.com/drive/folders/1JDbEMAqaiy_l8RkeGpbpMs-Gc1A0ojgY, https://medium.com/@jethro_20307/creality-ender-3-pro-bltouch-v3-1-marlin-1-1-9-1-e3512ed9c81a, Installing the Creality BLTouch Auto Bed Leveling Kit on my Ender 3. This way you can manually receive the current state of the triggers, before you do an Auto Home and the head will potentially crash into your bed. The instructions were absolutely atrocious. I have a lot of problems trying to adjust the Z-offset on my 3D printer, Creality CR-20 Pro. in a 5v input. They included a QR code that redirected to the Creality homepage when viewed. Now that we hopefully made it through the compilation and uploading of a working configuration, we can now figure out the probes Z-offset from the nozzle. I just finished install Marlin 2.0 on my SKR PRO, but i have a problem with homing. Home your 3D printer; Reset Z0-Offset M851 Z0 ; Store setting to EEPROM M500; Set active parameters M501; Display Active Parameters M503; Home your nozzle and show your Z-Axis G28; Move the nozzle to true 0 offset G1 F60 Z0 As a reminder, most common print quality issues can be found in the Simplify3D picture guide. I have a ender 3 that I've had for about 6 months now. Once renamed the software worked perfectly for me. After trial and error, my Z offset is set to -3.6 and I have been having no issues. Reset your Z-Probe Offset with M851 Z0; Save this to the EEPROM using M500; Set EEPROM values as your Active Parameters using M501; Confirm the value of the Z-Probe Offset using M503; Use G28 to auto-home. During the pandemic I have had a lot more time to work with my Creality Ender 3. First, preheat both the hotend and bed to working temperatures and let it stabilize for a few minutes. But assembled with the low quality 3D printer, we just get the value as 0.001~0.05mm. Control > Motion > Z offset and enter the new value e.g. I've tried pla and abs and everytime it's just a little to far away. The bracket is a solid piece of metal, and the BLTouch connects with 2 M3 screws. This one was outlined in the Teaching Tech video. Hi, I have some difficulty understanding the implementation of bed leveling in Duet Wifi. This has led to a lot of time manually leveling the bed and working to achieve success when getting the initial layers on my prints. Learn all you need to know about BLTouch sensors: what they are, how they work, a setup guide, and where to buy your first BLTouch. Solution: Grind. ( Log Out /  You’ll use NOZZLE_TO_PROBE_OFFSET to define that now.. See link below as to Creality’s Google Drive Link for ProgISP. While the printer is printing the skirt, you will adjust the Z Probe Offset. Can't set z probe offset low enough on Ender 3 I just installed a BLTouch on my Ender 3, and every time I go to print, it is at least 5mm above the bed. Transparent white color. Problem: Knowing what hex file is needed. I used this command to test if my capacitive sensor is working correctly before I did my first Auto Home. Use G30 to Home Z. Being that I was following Teaching Tech’s instructions I first used the ISP USB interface to flash the firmware and this is where I hit my first hurde and struggled. The BLTouch won't function reliably if the pin is dirty or damaged. The problem comes when you have to send the signal (S) to your electronic board, if you don’t regulate that voltage (with additional electronics) you can burn the port as it happened to me in my MKS Gen v1.4. BL Touch Z-offset Leveling Instructions. And now, back in the Move-Z menu, the new starting value should be the original offset + the absolute value of the offset, so in my case it's 12.8. If you want a better gauging result. Hook up the BL-Touch “servo” connector to a control_pin according to the BL-Touch documentation or your MCU documentation. ( Log Out /  One thing I hear over and over in the various printer forums is our intrepid endusers installing a sensor, somehow manages to get it wired up correctly, stumbles i… So when the bltouch probes the bed, it surely stops at the offset value so the hot end does not go beyond the bed size and hence I … This is where I ran into the next problem, improper instructions to set the Z Offset. And if you do touch it, be very gentle, in order to not bend or push anything. Set the Z-offset. As soon as I realized this, I was very excited as this was an upgrade I have been wanting since the beginning of owning this printer. 2. In Marlin you could set it in the firmware. Additional settings or relevant information is always encouraged. Everytime I print I make sure to run the bed leveling process where it checks the whole bed and all that. When I finally found this download on their site the software was throwing errors for me. P is the value needed to trigger the BLTouch. #define Z_PROBE_OFFSET_FROM_EXTRUDER -2 // Z offset: -below [the nozzle] (always negative!) Close. If BLTouch push-pin can't be perpendicular to the ground, BLTouch will put wrong si gnal out. If not, change the z-offset setting accordingly and repeat this test. I printed my mount, which gave some suggestions on the mount offset. Every time I adjust the z offset so that's it's closer to the bed and I make sure to save it and load it. I was feeling punched in the gut at this point, but continued to dig. This will move up slightly after the Z-Probe is triggered; Use G1 F60 Z0 to move back to Z0; Unlock the soft Z limit to enable movement below Z0 using M211 S0 I have reprinted the Fan Shroud mod and the layer lines are consistent, and don’t show any signs of leveling issues. Prior to that upgrade the Ender 3 was loud and annoying to be near when in operation. What if you are not getting an accurate Z Offset from the Tool? Sometimes moving the Z axis up and down bit by bit might cause a little slippages, which makes the Z-Offset gauging with A4 paper inaccurate. I attempted to follow Teaching Tech’s video overview of the process, however, my experience with the software, while just as bad, was not the same as his. 8. P is the value needed to trigger the BLTouch. I flashed the latest 8 bit firmware and then updated my Cura settings to include the ABL code. I have correct set of values for X, Y, Z size bed. My problem is with the Z offset between the switch (BLTouch) and the hotend's nozzle. This value will be adjust later on, to match our setup. What if you are not getting an accurate Z Offset from the Tool? I printed a whistle, and the layers were super tight and even. How does Z offset (M851) work with an auto leveling sensor?Does it add the Z offset to the offset of the G29 mesh? By using our Services or clicking I agree, you agree to our use of cookies. If you now bring down the nozzle again to 0.0, it should be exactly at the desired distance where it grabs the paper. Link to an article on Medium where I found this to be the solution is below. The result was that the Z- was completely unusable for me having inserted 12v. Press J to jump to the feed. Creality has NOT made it simple to get the necessary files for this. The bottom of the BLTouch plastic shell must be 8mm+-0.5mm away from the nozzle tip to trigger properly. 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. I just finished install Marlin 2.0 on my SKR PRO, but i have a problem with homing. I have held back on this upgrade as I am a novice when it comes to 3D Printing and, while I am technologically inclined, a lot of things when it comes to 3D printing are above my head. Great guide for using the z-min for the BLTouch in the video here by Ted Marozzi Dai Hai Zu's video here is a comprehensive guide to installing TMC2208 stepper drivers This is a great diagram of the board, from Korobok at Thingiverse.com (note that this is for the original board, not 1.1, but all pins but the servos should be the same): 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.. Important: It is important to have Z-offset at 0 before calibrating. Bltouch offsets are done also. One additional item that I haven’t yet resolved is that when I attempted to close the board casing, I found the fan and pinboard interfered with one another. See link below as to Creality’s Google Drive Link for the hex file; Problem: Setting the Z Offset based on Creality’s instructions. (It was the same BLTouch) Actually, around 0.05 is also not much problem at FDM type 3D printers. That upgrade brought a significant improvement to the performance of my machine in addition to the silence it brought. The installation of the hardware was no problem at all. Change ), You are commenting using your Google account. Press question mark to learn the rest of the keyboard shortcuts. If BLTouch push-pin can't be perpendicular to the ground, BLTouch will put wrong si gnal out. Slice the STL file with your desired settings and print it on your printer. I decided that the pros outweighed the cons and pulled the trigger. Leveling the bed may not be the ultimate master code to resolving printing issues, but it is a major hurdle in achieving bed adhesion and quality prints. Optionally send: M502 to reset firmware settings. I had the same issues as you discussed. I'm up to -4 mm of z offset and it still isn't close enough. Please note this product was purchased with my own funds, however, as an Amazon Associate I earn from qualifying purchases. Change ), You are commenting using your Facebook account. So I defined the offsets #define NOZZLE_TO_PROBE_OFFSET { -44, -7, -3 } like this, but when i G28 and then G29 the BLTOUCH … ProgISP: https://drive.google.com/drive/folders/1lXXDpAtkGP2KVKi4O1yqBInqunWGrWvN, Marlin: https://drive.google.com/drive/folders/1JDbEMAqaiy_l8RkeGpbpMs-Gc1A0ojgY, Renaming file: https://medium.com/@jethro_20307/creality-ender-3-pro-bltouch-v3-1-marlin-1-1-9-1-e3512ed9c81a. If you want a better gauging result. We start with a Z offset of 0.0mm in regards to actual probe activation and factual distance. The process of constantly re-leveling the bed, and having things change between prints has led to a lot of frustration. We recommend user to set Z-Offset to the value you want, use “ Re-Home Z button ” to allow BLTouch to re-probe and show you a much more accurate Z offset result. If there is a problem then an intermittent alarm light signal will allow you to immediately identify that there is a problem. The BLTouch is very accurate and consistent after the initial setup but there are times when you might want to fine tune for example for different filament materials or bed types. Posted by 13 days ago. I am not familiar with the ins and outs of various firmware for 3D printers, or how to go about flashing them, and definitely don’t want to brick a machine like this when I am trying to save a bit of time. I cannot find any X_PROBE_OFFSET_FROM_EXTRUDER options in marlin. 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. I have a bltouch and i must set my Z_offset to -8 A warning before you start: Avoid touching the BL-Touch pin with your bare fingers, since it is quite sensitive to finger grease. The only issue I have is a bltouch not willing to probe the whole bed. The pin can be removed for cleaning or replacement. But assembled with the low quality 3D printer, we just get the value as 0.001~0.05mm. After a couple test prints, the BLTouch is definitely making a difference in leveling the bed. If you want a better gauging result. One month with the Bowflex C6 and Peloton Mobile! (It was the same BLTouch) Actually, around 0.05 is also not much problem at FDM type 3D printers. At this point, your nozzle should be a few millimeters above the bed, the Z-offset brings it to the bed, with larger negative numbers being closer to the bed. If you connect your bltouch and when auto homing the sensor doesn’t register & the z axis keeps dropping pressing into your bed, turn your printer off, disconnect the power and invert the black and white connectors in the z limit switch header (put black where white was, put white where black was). If you are interested in the product please see the link below: great article and it helped me a lot. This Christmas I got a BLtouch along with some new nozzles. We recommend user to set Z-Offset to the value you want, use “Re-Home Z button” to allow BLTouch to re-probe and show you a much more accurate Z offset … Heat the bed to the printing temperature and run the bed level command from the LCD ( Prepare -> Bed Leveling -> Level bed ) or using the G29 gcode or using the Heat and … If you connect your bltouch and when auto homing the sensor doesn’t register & the z axis keeps dropping pressing into your bed, turn your printer off, disconnect the power and invert the black and white connectors in the z limit switch header (put black where white was, put white where black was). BLTouch BLTouch must be installed perpendicular to the ground. Learn all you need to know about BLTouch sensors: what they are, how they work, a setup guide, and where to buy your first BLTouch. 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Feeling punched in the gut at this point, but continued bltouch z offset problem dig means it can not anything... Ender 3 https: //drive.google.com/drive/folders/1lXXDpAtkGP2KVKi4O1yqBInqunWGrWvN, Marlin: https: //drive.google.com/drive/folders/1lXXDpAtkGP2KVKi4O1yqBInqunWGrWvN, Marlin: https //medium.com/. Layers were super tight and even run the bed is much more noticeable printer a... And then updated my Cura settings to include the following details to help troubleshoot your problem probe the bed! The BL-Touch “ servo ” connector to a lot more time to work with my own funds,,... My machine in addition to the ground, BLTouch will put wrong si gnal out have able! Quality issues can be a bit complicated because the probe is fully extended -4 mm of offset... Very happy with the added use, the amount of time spent re-leveling the..!