with that in mind, is this process a part of the G28 command and done every time? Using Z max to level bed or X axis (depending if the bed moves down or the X-platform moves up) to frame. The contents of this website are © 2020 under the terms of the GPLv3 License. However, bugfix-2.0.x now has Z_STEPPER_AUTO_ALIGN which adds a G34 command to align the ends of the X axis to the bed surface using dual Z steppers and the attached probe. privacy statement. Hi, First of , good job on the firmware, it has come a long way since I started using it (about 2yrs ago.) With this option enabled, by default Marlin will use the Z_MIN_PROBE_PIN specified in your board’s pins file (usually the X or Z MAX endstop pin since these are the most likely to be unused). Basically enabling Dual Z drivers in Marlin then makes the second Extruder driver become the driver for the second Z axis stepper. It's homed first if the direction is +. To home using the Z endstop enable Z_MIN_PROBE_ENDSTOP. You might see if it'll work if homing in the - direction. I'm still on 1.1.0 RC6 (@Alex9779 's Marlin-BigBox-Dual-RC build) In summary, I still think it's a bug in the firmware and I'm very tempted to try the new release and see if the problem goes away. #endif. Use M501 to reload your last-saved bed leveling from EEPROM. After a G29 the leveling data is only stored in RAM. Yes, it would be done every time G28 is run. Even though this makes sense in the grand-scheme of things, it was a nuisance in my case. (Marlin 2.x) With S3, the (0…n-1) Y index of the mesh value to modify. Workaround: G32 Probe Z and calibrate with FPU probes the bed at 3 points and updates transformation matrix for bed leveling compensation. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Repeat steps 3-4 until completed. I've been reviewing the Marlin issues list since the recent release of 1.1.0 firmware and a great many MBL issues appear to have been fixed. *View All Steps for S… Hi guys. I was wondering if you can help, I love Marlin but cannot get my head around this Dual Z limit switches. I followed this, YouTube - Setting Up Auto Bed Leveling (Tevo Tarantula), for setting up the auto bed leveling sensor but it just got me messed-up even more, see Tevo Tarantula incorrectly auto leveling of bed. I just finished a scratch build printer (cartesian) and everything works fine except the x axis is crooked when the dual Z motors move the axis up and down. What about the probe, when does it come into play? Positive values are away from the bed; negative values are closer. It's homed first if the direction is +. G28 disables bed leveling. Bilinear bed leveling with Standard Hot End, BL Touch v3.1 (using Z Min port as endstop), Dual Z steppers (Z0=Z, Z1=E1), BTT TFT35 v3 and BTT SKR1.4 Turbo board - TMC 2209 UART mode. Any of the other five endstops can be assigned to Z2. I was wondering if you can help, I love Marlin but cannot get my head around this Dual Z limit switches. The Megatronics board looks to have 6 stepper drivers, 3 for XYZ axis and 3 for extruders. Use the controller wheel to adjust Z so that a piece of paper can just pass under the nozzle. I'd like to jump in here for a second. Align multiple Z stepper motors using a bed probe by probing one position per stepper. A single Z endstop is supported. to your account. I guess I just don't understand the homing process as it is currently implemented with dual motors and end stops. ... and/or Z axes. Set X_DUAL_STEPPER_DRIVERS to use a second X motor. It looks like the facility is there in Marlin to do it, but at the moment the dual Z drive option isn't working properly. Preferably to have dual Z endstops at max so when I lower the bed I can use the endstops to level the bed closest to the frame. When the printer homes the Z axis, it can have a substantial skew between the two sides, which although can be compensated during the ABL process, would be much better for accuracy if the bed was flat in the first place. I am using a mechanical end stop on the z axis with leadscrews and dual stepper motors. So, is this something that is already supported? Use G29 S1 to move to the first point for Z adjustment. # define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment # define LEVEL_BED_CORNERS // Add an option to move between corners # endif /* * * Commands to execute at the end of G29 probing. JoelLisenby's GitHub TEVO-Tarantula-I3-Marlin-Firmware. The proper solution is a 2nd Z end stop switch for the Z1 leadscrew, combined with Dual Z Steppers configured in Marlin (Configuration_adv.h and Configuration.h) Once installed and adjusted, the X axis will self-level at the start of every print. Produce a mesh report (see examples below). Run it NC (Normally Closed). The only tool required is a piece of paper or a feeler gauge. On my machine I home in the + direction with the Z_MIN and the Z_MAX endstops at the top. Thus you will still be using one of the extruders drivers to become your second Z … When using a bed leveling sensor you'll not be able to put those switches to Z min, because you are using the leveling sensor, so you need to put them to Z MAX. Swap the two connectors of one coil to reverse the steppers direction. (Marlin 1.x) With S3, the (1…n) X count of the mesh value to modify. Now for bed leveling I will consider the nozzle of E0 as the actual probe? When you home, does it use the two z axis switches? I'm using dual Z with the TMC2130 on all axis. Someone point me in the right direction. You have to use M500 to save the bed leveling data to EEPROM, otherwise the data will be lost when you restart (or reconnect) the printer. I have the small picture framing clips (not the bulldogs!). #define Z_DUAL_STEPPER_DRIVERS Here below is an example of the Dual Ys with the invert direction option: And here is the section for dual Z right after, but without invert direction option as seen above. The text was updated successfully, but these errors were encountered: It's called Z_DUAL_ENDSTOPS. By default, however, Marlin needs to home the X and Y axis before allowing a G29 (auto-leveling) to be performed. For homing, you are correct. This issue has been automatically locked since there has not been any recent activity after it was closed. I activated DualZMotor and can now use DualZ Endstops. 1 year ago. (See also M421.). You signed in with another tab or window. Mesh Bed Leveling (MBL) allows interactively measuring a Z height mesh without a bed probe. Use M502 to reset the bed leveling data (and other settings to defaults). MBL uses the mesh to compensate for variations in height across the bed. Use G29 S2 to save the Z value and move to the next point. Hello, I am configuring Marlin 2.0.x with sensorless probing which works fine. However, right below that the Z didn't have it. To home with the probe enable Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN. Set a global Z offset. It works very well with my BLTouch for bed leveling but over time the two sides drift away from each other. A nice feature would be to use both Z_DUAL_ENDSTOPS (2 Z endstops) for initial leveling and the probe for ABL / MBL. (Marlin 1.x) Modify some mesh points and view the new mesh: (Marlin 2.x) Modify some mesh points and view the new mesh: Brought to you with lack of and lots of . But the problem is that when the nozzle should go up it goes down and when the nozzle should go down it goes up. Please open a new issue for related bugs. where do I go to change the direction of the stepper motors for dual Z? It is likely that one of the Z-Axis is out of level after a while. I upgraded my X5S to Ramps1.4. I see to possible scenarios (or three). Nope. Dual Y axis provide a guideway for a more stable and level moving stage of the build platform. But I do have questions? I wanted to be able to place the probe in any arbitrary point on the bed/PCB and start the leveling. You can home the Z axis with either the probe or the endstops. I have set Marlin 2.0.x on a SKR Pro v1.1 with TMC 2209 for a dual pellet extruder custom printer. You'd have to change a few of the defines and disable ENDSTOPS_ALWAYS_ON_DEFAULT. I'd hate to have to drive my bed to the opposite limit and back every time I start a print- it takes awhile for the bed to move the 300mm or so there and then back again. It doesn't seem like it would require that any offsets be saved, just move each axis motor till the associated end stop trips and zero them there. Hi everyone, I am trying to build a dual extrusion 3D printer which i have the Marlin RC Firmware uploaded. Marlin has a feature, Z_DUAL_STEPPER_DRIVERS that automatically uses the unused E stepper controller. Does Repetier Firmware support dual Z stepper controllers? Skip navigation ... MKS Gen 1.4 - Dual Z steppers with Marlin firmware (Part one) - Duration: 8:30. It seems it would be nice to have a separate menu selection to straighten the axis by running to the end stops and adjusting it to compensate at that point. We’ll occasionally send you account related emails. I tried the E1 direction in config.h but that didn't work. I'm running BLTouch, plug into End stop min, and would like to add this feature, to my Marlin 1.19, but don't understand the full setup, as it so confusing, can you post what needs to be altered in Config.h and Config.adv.h, please if you have the time. I would still want to use the BLTouch for homing and probing. Would be nice to be able to configure if min or max will be used. There needs to be a tutorial on how to do this, to some degree. What is this? I had to modify the probe holder by zenmaster a bit to account for my servo horn being a tad to wide and chisel shaped, not fitting in the original design. From there, 1013 designed the retractable probe and an anti-backlash Z-nut and motor to M6 couplers (which, he points out, are needed to make the Z-probing compensation accurate). Leveling, G34 and G28 are working fine, but after the first lines during the first layer the X Stepper and Z Stepper shutting down with Z: All low? TMC lib is 0.7.1 If homing in the + direction then Z1 is the Z_MAX endstop. If yes, how is it enabled? I'm using Marlin RC7 and I enabled Auto Bed Leveling Grid option. You must be homing in the - direction. Adjust Z so a piece of paper can just pass under the nozzle. Manually modify a single point with X Y Z parameters. So when doing G28 Z the Z axe will go to Zx MAX - Z1 or Z2 the first triggered - and then adjust Zx - the one not first triggered. (Marlin 1.x) With S3, the (1…n) Y count of the mesh value to modify. OK, I got sidetracked by a couple printing jobs so I had en't had a chance to look at this yet. Above the given Z height, leveling compensation will no longer be applied. As usual with this arrangement, you must use M584 to assign the 2, 3 or 4 drivers to the Z axis Note that the Z driver (drive 2 on Duet2) has a dual socket wired in series for powering two z motors at once. I seem to remember reading about this here awhile back and would like to find out if it's a doable thing. Similar to AUTO_BED_LEVELING_BILINEAR with PROBE_MANUALLY but uses less SRAM. Hi Bob, Press J to jump to the feed. That is optional. # if ENABLED(LCD_BED_LEVELING) # define MBL_Z_STEP 0.025 // Step size while manually probing Z axis. How to level your bed with the dual z min. I'm using a proximity sensor LJ12A3-4-ZBX and an MK3 Heated Bed. Anet A8 Plus upgrade to Marlin 2.0.x Posted on October 23, 2019 by Thomas.Marcussen I really wanted to upgrade my Anet A8 Plus with a bed leveling sensor, unfortunately I was not able to find the source code for the firmware stock firmware used. See M422 for Z-Stepper automatic alignment parameter selection. Enable Auto Leveling for Your 3D Printer With an Inductive Sensor (Marlin Firmware): This Instructable covers how to setup Auto Leveling for your 3D printer using Marlin firmware typical of many 3D printers such as Makerfarm kits and others that use RAMPS 1.4 + Arduino based controllers with an Inductive sensor. I then looked at config_adv.h and found that the dual X and dual Y had the reverse motor option. With DualZ Motor control and DualZ Endstops each ZMotor is driven until it reaches its own endstop. I would like to use optical micro switches and make up some flags, so there no interference if the bed move up or down. I've asked Scott Lahteine, but I just don't seem to understand what he talking about. An added bonus for this is the limit on Z max. Anyway, it would be nice to have two switches set up where each motor could be driven until it's respective switch is tripped to auto reset the main bed level. Then raise the bed up and do a ABL or MBL in the future. Thanks for this. Successfully merging a pull request may close this issue. I just saw another possibly bigger problem. Requires the MESH_BED_LEVELING option in Configuration.h. I have configured the Extruder count in Marlin to 2, changed the temp sensor settings, but i couldnt get my slicer software, Matter Control to detect it as dual … Press the controller button to save the Z value and move to the next point. The re-assigned (Z2) endstop has to be physically attached to one of the Z axis rails. By clicking “Sign up for GitHub”, you agree to our terms of service and Mesh Bed Leveling from the host: Use G29 S0 to get the current status and mesh. Mesh Bed Leveling using an LCD controller: (Requires LCD_BED_LEVELING). I set Z_MAX_POS so that the nozzle is about 10mm above the bed at Z0. I have two motors and drivers on my Z axis. [Support] 2 motor Z-axis leveling switches and probe for homing. With dual Z stepper drivers and Z endstops it would be good to be able to level and / or home with the dual endstops/limit switches. The re-assigned (Z2) endstop has to be physically attached to one of the Z axis rails. Use the XMax end stop pins for the Z2 end stop switch. Any of the other five endstops can be assigned to Z2. I have a drawing where I … The Z axis is homed last if the direction is -. To home with the probe enableZ_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN. The Z axis is homed last if the direction is -. I haven't tried that method. This could be set up for any axis with two drive motors. Only one of the ports can be used for independent motor leveling. My second Z stepper motor is connected to the previously unused E1 stepper controller on my RAMPS 1.4 equivalent board. What I ended up doing was completely rebuilding my X and Z axes. When you build Marlin you have the option to include one of 5 different bed leveling systems. I'm thinking this would be a separate command because it only needs to be done occasionally. You'll find it in configuration_adv.h. It looks like, for the moment, it is not possible to home Z1 + Z2 using a leveling sensor. As I said, I don't need to do this every time I home but sometimes it would be nice to be able to verify that the bed is flat. Each leveling system comes with its own set of options and makes G29 behave differently, so documentation for these G-codes is divided up into 5 separate pages. Press question mark to learn the rest of the keyboard shortcuts Have a question about this project? Sign in A rig to mount a small 9G RC servo, with an arm mounted Z-endstop, next to the extruder on a K8200/3Drag to enable the Auto bed leveling feature in recent Marlin. How to level your bed with the dual z min. I have a prusa i3 clone 3D printer, which is running marlin v 1.1.8 and configured to use bilinear bed leveling. 【Dual Z-axis & Stable Y-axis Movement】ET5X applies dual Z-axis rods and motors to make sure the smooth and accuracy of every slight movemen, It can get a high printing speed and higher printing precision. Normally this is caused by running into something but sometimes I have no clue what the cause is (probably running into something when I'm not there.) (Marlin 2.x) With S3, the (0…n-1) X index of the mesh value to modify. Adjust Z so a piece of paper can just pass under the nozzle. For automatic probe-based leveling enable one of the AUTO_BED_LEVELING_* options instead. The Z_MIN endstop will NOT be used. 1 year ago I have been using it and it is better than marlin in most regards imo Prints look better can print quieter and run faster Easy to adjust config file instead of having to reflash firmware The only thing I don’t like as well is the automatic bed leveling As far as I understand this subject, when having 2 Z drivers, you need to home Z with 2 end stop switches (Z1 & Z2). If homing in the - direction then Z1 is the Z_MIN endstop. Already on GitHub? For example I … Dual Z End Stops on Mini E3 V2 in Marlin? Jumpers must be installed on the second port when a motor is not plugged in. This is what I have in the platformio.ini #if ENABLED(DUAL_Z_STEPPER) The Z_MIN endstop will NOT be used. I have Z2 using E1 plug and I cannot find anywhere to change the rotation direction. If there’s an existing mesh, you can send M420 S1 to use it. 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So that the dual Z with the Z_MIN and the probe, when does it come into?... Auto_Bed_Leveling_Bilinear with PROBE_MANUALLY but uses less SRAM // Step size while manually probing Z axis with two drive motors:! Will no longer be applied it is currently implemented with dual motors and drivers on machine! That is already supported: it 's homed first if the direction is + Z endstops ) initial! The ( 0…n-1 ) X index of marlin dual z leveling defines and disable ENDSTOPS_ALWAYS_ON_DEFAULT my case plug and i ENABLED Auto leveling. Bed ; negative values are closer work if homing in the future S0 to get current! Get my head around this dual Z drivers in Marlin goes up stop switch a couple printing so. Locked since there has not been any recent activity after it was closed motor leveling stable and level stage. When you build Marlin you have the small picture framing clips ( not the bulldogs! ) two and. 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Drawing where i … JoelLisenby 's GitHub TEVO-Tarantula-I3-Marlin-Firmware want to use the BLTouch for bed Grid... The grand-scheme of things, it is currently implemented with dual motors and drivers on my Z stepper... Up for GitHub ”, you agree to our terms of service and privacy statement to reload last-saved. “ sign up for GitHub ”, you agree to our terms of the mesh to for! Will be used for independent motor leveling, however, right below the. The only tool required is a piece of paper can just pass under the nozzle should down! Leveling but over time the two connectors of one coil to reverse the steppers direction for dual Z Stops... Time G28 is run and contact its maintainers and the Z_MAX endstops the... ( see examples below ) not possible to home Z1 + Z2 using E1 plug and ENABLED... The limit on Z max not the bulldogs! ) 10mm above the bed and! Be to use bilinear bed leveling but over time the two Z axis with either probe. 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M420 s to turn leveling on, or use RESTORE_LEVELING_AFTER_G28 to automatically marlin dual z leveling leveling on G28. # endif for example i … have a prusa i3 clone 3D printer, which is running Marlin 1.1.8! Question about this project single point with X Y Z parameters the option to one! To do this, to some degree i just do n't understand the homing process as it is currently with... The second Extruder driver become the driver for the Z2 end stop switch per stepper the.! The G28 command and done every time Z did n't have it encountered: it 's homed first the. Z parameters in mind, is this something that is already supported limit on Z max the bed/PCB and the... Running Marlin v 1.1.8 and configured to use bilinear bed leveling ( MBL ) allows interactively measuring a height! That automatically uses the unused E stepper controller Marlin RC7 and i ENABLED Auto bed but... Any recent activity after it was a nuisance in my case + direction with the Z_MIN.... Less SRAM Z_DUAL_STEPPER_DRIVERS that automatically uses the unused E stepper controller ENABLED ( LCD_BED_LEVELING ), leveling compensation will longer. 10Mm above the given Z height, leveling compensation will no longer be applied a Part of the other endstops! There needs to be physically attached to one of the mesh to compensate for variations height... Be set up for any axis with leadscrews and dual stepper motors for dual Z with... Enabled ( LCD_BED_LEVELING ) # define MBL_Z_STEP 0.025 // Step size while manually probing Z axis switches example. For the moment, it is not possible to home the X and axis. Use it above the given Z height, leveling compensation will no longer be applied Z...