Klipper macro z offset. I am new to Klipper and pretty new to Octoprint.
Garrettwp provided the initial revised macro files. The main example given is for a fixed dock (X, Y, Z constant), with a Z endstop, with a few example macros. If your Z adjust was negative, ADD the number to the z_offset value. 1mm using a feeler gauge. You need to set MOVE=1 and ADJUST_Z= in your call to SET_GCODE_OFFSET. Just FYI: Do not add the Z_OFFSET_APPLY_PROBE command to your per-filament changes like in this macro. For example, if "SET_GCODE_OFFSET Z=0. With the current setup, the nozzle sits much higher than original, extending the distance to the probe. The Klipper PROBE_CALIBRATE tool can be used to obtain this value - it will run an automatic probe to measure the probe's Z trigger position and then start a manual probe to obtain the nozzle Z height. With this release, there are new GCode properties for attaching/detaching the probe. It is like 20 mm away. It is intended to compensate for a gcode offset when mesh fade is enabled. The default for the value for the endstop position is -0. ”. org/https://www. Click on the buttons before and after the distances, you can lift and low down the extruder and find out the best Z probe distance. gcode_move. 5) Restart the Klipper firmware; Run a CALIBRATE_Z; Without the probe, move the nozzle to the center of the bed and perform a manual Z offset calibration by moving the nozzle down, step by step, until it barely touches the print surface. 5) Restart the Klipper firmware. 4 KB) Hi there, First time post, so hi and nice to meet you! I am fairly new to Klipper as I… Oct 23, 2022 · It’s the method described above. 0 (for example: 0. The sign is flipped between Marlin and Klipper, so for me the z-offset of -2. hello, i need a simple Macro looks like this,to save the Z_offset in Printer. 1. • 2 yr. 打印/制作klicky probe 2. Reply. Dieser Wert wird gespeichert und es wird neu gestartet. Instead, Klipper prefers human readable "extended G-Code commands". This is a plugin for self-calibration of the nozzle offset on a 3D printer using Klipper. It acts as if the z_offset is totally messed up. User richardjm revised the macro variables and added some functions. Jan 10, 2024 · Changed deprecated “static_value” to “value” in [output_pin enable_pin] section of printer. Endstop phase. This is just a quirk of Klipper, without the second home the Z is wrong. Make sure the save_variables section is present in your config and the path provided for filename is valid. Warning The guide below includes GCode and macro examples. That's it. The "z_calibration:switch_offset" is the aforementioned offset from the switch body (which is the probed position) to the actual trigger point above it. 0 klippy. 2" is sent, then future G-Code moves will have 0. You could then pass the filament type as an argument into your START_PRINT macro and automatically apply the correct one. As for getting the value in the original macro, you might be able to use a gcode_macro for a global variable, and storing the value there. Put this in your START_PRINT macro. So keep that in mind. cfg under the [probe] setting, and restart Klipper! my Macro dont work. 01, logic being it's an offset used only with those values and it is saved into the mesh data. Los comandos son:PROBE_CALIBRATE (Inductivo / BLTouch / Klicky / QuickDraw / Etc)Z_ENDSTOP_CALIB Automatic Z-Offset Calibration. z_position} to find the current Z position. Switch Offset. log (1. New GCode Properties and Macros. Locate the pin the white wire is connected to and note it down as “sensor pin. Se vengono utilizzati i parametri di stile X_ADJUST, la regolazione verrà aggiunta a qualsiasi offset esistente (ad esempio, "SET_GCODE_OFFSET Z=-0. It’s mostly based on my knowledge from reading the Klipper documentation, experimentation, and information from the Klipper Discord. Narrative is written in general terms, using gcode commands. Probe's Z-Offset¶ The z-offset during PROBE_CALIBRATE is the z-offset of the probe to the bed. Correct, as your config file doesn’t contain any offset figures, once again, if you change anything within printer. Then Z axis will go down until it triggers the switch. 24 if something else is setting an absolute value. Nov 7, 2023 · The other various printer configurations are in the user submitted klipper folder in the Firmware Examples/klipper folder. I can even adjust the z_offest as it is printing and it doesn't affect the printer at all. If the X_ADJUST style parameters are used, then the adjustment will be added to any existing offset (eg, "SET_GCODE_OFFSET Z=-0. The probe z_offset will then be calculated from these measurements. The nozzle lowers to the requested height, and Ad esempio, se viene inviato "SET_GCODE_OFFSET Z=0. [include klipper-macros/*. 025, the z_offset should now be 0. This document provides information on calibrating the nozzle's Z offset automatically. cfg file to something that'll get you closer to the bed (remember that the larger the number the closer it'll put you to the bed to begin with Apr 18, 2023 · I need to add CALIBRATE_Z to my print start macros so it takes advantage of it. the correct visual output of the graphical bedmesh later. tool offset, extruder, part cooling fan, etc. With this enabled, manual Z offset or first layer calibrations are needless. 1 MOVE=1. 05 for -baby steps. ) in their standard configurations. 0升级到2. Until now, I had as many printers defined in Cura than I have print heads (indexed quick change tools, DIY until recently, now Stealthburner) ; in the start gcode, I was calling user gcode macros (M810-M817 for eight heads), and these gcode macros were setting PID parameters and nozzle Z-offsets. A typical endstop switch has an accuracy of around 100 microns. Ensure that everything is tight in your toolhead and across your X extrusion, including the hotend, nozzle, and probe. If one requires a less common G-Code command We would like to show you a description here but the site won’t allow us. Run the CALCULATE_SWITCH_OFFSET. Example: endstop_pin: probe:z_virtual_endstop. Locate the pin the yellow wire is connected to (according to the original wiring) and note it down as the “control pin. The Z endstop position value is defined in the printer. h. The following guide is my attempt at explaining how Klipper 1 macros work and how write macros. Mar 25, 2023 · z_offsetの調整. front right screw must be turned clockwise 1 full turn and a quarter turn. 3" would result in a total Z offset of 0. Wenn PINDA2/Superpinda korrekt installiert sind, ist dieser Wert von 0 relativ sicher, d. die Nozzle dürfte das Druckbett zunächst nicht berühren. I can't get the printhead anywhere near the print bed. Of course, your position_endstop must be in a way to stop the axis before it hits the bed. Jul 31, 2022 · What I want to do is a routine like PROBE_CALIBRATE, where first it will be measured the zero with the probe against the other switch, then the extruder is moved by the offset of the probe so it will be in the same position of the probe. Feb 20, 2024 · Hi everybody, I’m wondering what the best strategy in using the capabilities of Klipper’s bed leveling tools might be. We would like to show you a description here but the site won’t allow us. I do a little bit of automatic switching, in that I have different toolheads that use different beds, so it'll automatically switch to a "safe" bed every time the We would like to show you a description here but the site won’t allow us. Jul 28, 2021 · A quick guide on setting your probes Z offset in Klipper. Jan 19, 2023 · Type [bltouch] in an empty line at the bottom of the file. 2, it can be accounted for in bed_mesh with BED_MESH_OFFSET ZFADE=. It’s doing the probe clicking, then lifts, I remove the probe and then I go down to 0. Make sure everything is tight, especially grub screws. 344. Apr 3, 2024 · The START_PRINT and END_PRINT macros are optional but can be used to standardize the printer’s initialization process across different machines. It is most useful when using a Trinamic stepper motor driver that has run-time configuration. It’s been working great for Note that a ZFADE offset does NOT directly apply additional adjustment. Here is a quick guide to tuning your X, Y, and Z Offset. The difference then it will be the Z-Offset with a Klipper’s goal is to support the G-Code commands produced by common 3rd party software (eg, OctoPrint, Printrun, Slic3r, Cura, etc. There are a few changes you'll need to make in order to get Tap working properly. 0的过程中处理z偏移校准的过程，以下均假设使用的配置为z_calibration附带，如果是原版klicky probe配置思路仍然适用，细节请视情况自行做调整。. Set the switch_offset to any value greater 0. Doing probe calibrate a screen pops up saying the zoffset is 5 mm and testz moves past the 5 mm say out of bounds. Mar 22, 2023 · [z_calibration] #nozzle_xy_position: <X,Y position for clicking the nozzle on the z endstop - not needed if [safe_z_home] is used> switch_xy_offsets: 0,10 #<X,Y offsets from the nozzle position for clicking the probe's switch body on the z endstop> #bed_xy_position: <X,Y position for probing the bed, for instance the center point - not needed if mesh with relative_reference_index is used It'd be just as easy to name them "PETG" and "PLA", etc. 0的probe，过程不再赘述。. To get the value after a G28 you need to run another macro that evaluates the value - see Commands templates - Klipper This is asking basically the same as my issue #1170 was. It'll take a few tries to get it just right, and you can't change or save it on the printer itself. With Klipper you can calibrate the x and y offsets more precisely and then you'll also need to add your z offset. The process is basically starting with a known Z probe offset and then adding/subtracting the difference of the true and relative Apr 10, 2022 · I like to switch flexible bed plates on my Voron 2. May 10, 2024. The printer knows what bed surface you choose to use & can add a pre-set Z offset for the print & remove it afterward! The system can even combine the surface offset with a filament or temperature based one! May 7, 2023 · I come from Marlin, and I’m missing M81x, M301, M851, and M500. It's a chore I don't enjoy. This grants nearly full acess to a clean ui with most klipper settings / standard printer controls in a modern touch ui it should be noted the stock. Anything thats not a true “Adjust Live Z” call wont change the sheet’s z-offset value. cfg file for Klipper, a 3d-printer firmware. 2" followed by "SET_GCODE_OFFSET Z_ADJUST=0. 4, but hate adjusting the printer's Z Offset. Dec 18, 2022 · If you just want the z position, rather than the z_offset, you could try using the MANUAL_PROBE command, and then use {printer. jschuh closed this as not planned on Haha I came here to say the same, except I use this version (which is essentially the same thing) . 24 to directly set a value or Z_ADJUST=0. Contribute to protoloft/klipper_z_calibration development by creating an account on GitHub. Jun 12, 2023 · Setup the Z offset. First we need to verify the locations of the bed leveling screws are defined in your Klipper config: [screws_tilt_adjust]horizontal_move_z: 5screw1: 70,213screw1_name: back leftscrew2: 235,213screw2_name: back rightscrew3: 70,47screw3_name: front leftscrew4: 235,47screw4_name: front right If this has just been added Jan 29, 2019 · Adding SET_ZPROBE_OFFSET X=n Y=n Z=n would be the most obvious solution, though another that came to mind is BED_MESH_OUTPUT Z_OFFSET=0. Ensure that your start g-code contains Mar 15, 2024 · General Discussion. I’d like to invite you to add your experience and insights in finding the best practice in homing, z-tilt an bed-meshing as mentioned above. This is relevant for stock V1 Vorons to attach the probe after probing the nozzle! And there are new macros !! Assets 2. 但应该选用触发压力小的微动（软的 Status reference. In case you don’t know what the calibrate_z macro is: It’s a Klipper plugin made by Protoloft for a self calibrating z offset / first layer. The easiest way to set a Z offset is to use the SET_GCODE_OFFSET command. It doesn't have an influence on the initial layer, but it's needed for e. This is how Fluidd, Mainsail Aug 4, 2023 · En este video veremos como calibrar el Z Offset en Klipper. 190 to get it to the "bottom" of it's range and see if it's still to high up, if so you have to change the z offset in the printer. during the calibration and then set it back to. The fields in this document are subject to change - if using an attribute be sure to review the Config Changes document when upgrading the Klipper software. And a chart will appear on your screen. And the worst you can do is print the mesh data. Your fresh new macros are ready to go. Update your Z endstop: Under the [stepper_z] block, you'll want to comment out your position_endstop and change your endstop_pin so that it uses the virtual Z endstop for Tap. Marlin calculates z-offset differently than Klipper so you will need to recalibrate it when changing to Klipper firmware. See the slicers document for further details. The proper procedure is still to figure it out using the Z-offset on the LCD Tune menu and then adding it to the config file as the proper BLtouch z-offset. These are offered as a convenience only and are thus unsupported. g. They provide more control over the initialization procedure, which can be particularly useful for printers that require more complex initialization steps. Updating your Klipper config for Tap. Dec 28, 2020 · We than need to start the manual calibration steps. General Discussion. Contribute to protoloft/klipper_z Mar 26, 2023 · Here's what I've done: I ran the z_offset_calibration macro with the sensor plugged in, and it did palpation before lifting up and opening a window with manual adjustment parameters. Save + restart Now travelling to Z 0. So I think you were right from the beginning and I was wrong. Adjust the value and repeat until you feel a slight resistance: TESTZ Z=-. If I click the "Clear offset" button it outputs this: SET_GCODE_OFFSET Z=0 MOVE=1. 4 auf 0. All works, except z offset calibration. I’ll show here what I currently do and try to explain my thoughts, why I do it this way. . oc_geek and TurBoxxs were also a great help in refining and testing the CAD files. cfg and paste in the markup from the file below: STEP 2: Open the printer config file and add the include statement below the statement that included Fluidd: STEP 3: Restart Klipper. z_offsetはきちんと計測していない仮値のためちゃんと調整します。 まずは仮にZ軸の限界移動量をマイナス方向に拡張します。 (Z軸設定が不完全なので、調整中にZ軸がマイナスの値を取る場合がありますが、拡張しないとロックがかかります） Dec 31, 2018 · Meaning, I created Macro buttons, one with SET_GCODE_OFFSET Z=. Explore the sample-macros. We have attempted to name them so that the printer is in the filename. Heat up the bed and nozzle (and chamber) Get probe, make QGL or Z-Tilt, park probe. This functionality can improve the accuracy of traditional endstop switches. 总结一下从klicky probe 1. Make a new line under the [bltouch] line, and type “sensor_pin The easiest way to apply the desired Z adjustment is to create a START_PRINT g-code macro, arrange for the slicer to call that macro during the start of each print, and add a SET_GCODE_OFFSET command to that macro. Apr 25, 2023 · Set the switch_offset to any value greater 0. ago. There is no need for a manual calibration of the z-offset or the first layer any more (although this is strongly recommended as a rough starting value). # ADJUST_SURFACE_OFFSETS # This line includes all the standard macros. Aug 7, 2022 · kukynas August 11, 2022, 8:14pm 11. Then, run the CALCULATE_SWITCH_OFFSET 1. With a Z offset of . This is based on the instructions found at: Dec 1, 2022 · It sounds like you don't have a properly configured [save_variables] section. You can use parameter Z=0. i create two macros with this command and i can change Z Step 1 Offset zurücksetzen. but I dont know where to place it, and according to documentation, I should have the following in my PRINT_START macro: Home all axes. My [probe] section is correct, according to the guides: If I start a print, the nozzle is too high (~0. , Manual leveling - Klipper documentation. So if your offset to get it perfect was -0. 8. If you run Klipper on your 3D Apr 14, 2024 · Sineos April 14, 2024, 3:20pm 3. 8%. 2", i futuri movimenti G-Code avranno 0. cfg or adjust your z-offset with probe calibration command you gotta save it through the console command SAVE_CONFIG manually as klipper sometimes ignoring your saved printer. cfg] # Uncomment to include features that require specific hardware support. How do I set this in Klipper rather in my slicer? SET_GCODE_OFFSET might be of use here. 7mm). Nov 7, 2023 · User contributed macros for various printers and configurations are shared in the klipper folder as well. klipper3d. This works, but then you need to determine your z-offset with the endstop and, e. Find out how to customize and enhance your printing experience with macros. SET_GCODE_OFFSET Z=-0. 2mm added to their Z height. Mental created the initial macro and one of the first magnetically attached microswitch probes. rear left screw must be turned clockwise 2 minutes (not need it's ok) Note that "minutes" refers to "minutes of a clock face". I finally tracked my issue to improper z_offset down to my loading these macros. This is a plugin to self calibrate the nozzle offset to the print surface on a 3D printer using Klipper. 7 MB) Describe your issue: So I’m starting to level using the probe z-offset. 2%. Hook up the BL-Touch "servo" connector to a control_pin according to the BL-Touch documentation or your MCU documentation. That's the gcode you'd put in the macro. 1). The PRTOUCH_PROBE_ZOFFSET command takes a couple optional parameters, APPLY_Z_ADJUST and CLEAR_NOZZLE . homing_origin. It is not a goal to support every possible G-Code command. 1. lcd more then likely will not be added to Klipper by developers anytimee soon (months/years) theres many other more common screens stil waiting for support. Now when I do an automatic z offset calibration, the probing works, after I set the correct Z height, accept and all gets stored. You can also often leave out position_min (which sets it to 0) Sometimes that can cause issues when calibrating z_offset so if you do run into problems you can set it to a negative value like: position_min: -10. Wir öffnen die Datei printer. Apr 25, 2023 · Klipper plugin for self-calibrating z-offset. So use Z_ADJUST= when babystepping by relative values, and use Z= to set an absolute value. Klipper delta bed mesh/ z height issues. If it was positive, SUBTRACT it. I'm supposed to have a z-offset of 3. Grabbed the ender5plus config file from the klipper repo and proceeded to run tuning prints. rear right screw must be turned counter-clockwise 50 minutes. Updated instructions provided by StefanRaatz. (This took me ages to work out) Probe Z offset adjustable via the calibration menu so you can adjust and save the probe height entirely at the printer (super useful) START_PRINT G-Code macro that heats the bed to temperature. Basic Information: Printer Model: Flsun V400 customized with E3D Revo Micro + Bondtech LGX Klippy log: klippy (6). 2mm) I use the “z_offset” buttons in mainsail front-end to adjust my z-offset. The idea behind them is simple: The slicers Jul 22, 2022 · ・2022年10月14日 PA_CALIBRATE更新 現在KP3SのKlipperで使っているマクロをバックアップの意味合いもかねて記入しています。 主にGitHubから他の方が使っているマクロの寄せ集めを改変しています。 お使いになる場合はご自身のプリンターに合わせて数値を変更してください。 変だからこうした方が SET_GCODE_OFFSET Z_ADJUST=-0. It sounds like you’ve tried to evaluate {printer. Sep 25, 2023 · February 6, 2023. This page is tailored to Voron printers. It is possible to change any variable in the printer from 准确的探针 z 偏移(z_offset)是高质量打印的基础。 z 偏移是探针触发时探针和喷嘴之间的高度差。 Klipper 中的 PROBE_CALIBRATE （探针校准）工具可用于测量这个值——首先，该工具会运行一次自动探测以获取探针的 z 触发位置，然后需要手动调整Z坐标以获取喷嘴碰触 Dec 24, 2020 · Leveling your print bed is easy using Klipper and a probe such as the BLTouch. 3" risulterà in un offset Z Sep 1, 2022 · When you “Adjust Live Z” (AKA Baby Stepping) with your klipper UI of choice the offset change is saved instantly to the sheet that is installed. maitryx. But it seems during printing it only allows for one instance of a button press, or one change during the duration of a print. Remember to let the bed cool down before z-offset though. This document is a reference of printer status information available in Klipper macros , display fields, and via the API Server. There is no need for a manual Z offset or first layer calibration any more. Shell 17. Nov 29, 2023 · Basic Information: Printer Model: FLSUN V400 MCU / Printerboard: Robin Nano 2. (If your Z offset seems to vary between prints. It is labeled as position_endstop and can be found in the [stepper_z] section of the configuration file. running PRTOUCH_PROBE_ZOFFSET alone will just print out the touch probes z-offset and give you the option to save it using SAVE_CONFIG. So, for example, 15 minutes is a quarter of a full turn. Klipper works a little differently, the z-offset is defined as " The distance (in mm) between the bed and the nozzle when the probe triggers. They are for illustration Apr 4, 2023 · STEP 1: Create a file named okuru-macros. merlin2105 March 15, 2024, 3:34pm 1. 960 SAVE_CONFIG [gcode_macro Smooth] gcode: save_config: set [probe] z Note that a ZFADE offset does NOT directly apply additional adjustment. I show a snippet of my [gcode_macro Jan 20, 2024 · Nobody has been able to explain the exact process to get the z_offset setting to actually apply to future prints. Compare. Mar 12, 2023 · Setting the Z Offset in Klipper doesn't have to be hard. Sep 25, 2023 · on Sep 25, 2023. [gcode_macro Textur] gcode: save_config: set [probe] z_offset = 0. Dec 3, 2023 · [gcode_macro TEST_OFFSET_READING] description: Reads z-offsets and probe offset, compares and sets new z-offset gcode: G1 F2000 X0 Y0 # first move to 0,0 to ensure afterwards only y-axis moves G1 F2000 X0 Y-130 # move to aluminium plate G1 F5000 X-50 Y-130 # wipe nozzle G1 F5000 X0 Y-130 G91 # Set to relative positioning Klipper's goal is to support the G-Code commands produced by common 3rd party software (eg, OctoPrint, Printrun, Slic3r, Cura, etc. Klipper plugin for self-calibrating z-offset. This is because if you're saying your probe is higher, the nozzle needs to go lower and vice versa. However, when I started printing, the The z_offset is the distance between the nozzle and bed when the probe triggers. Use with caution. 2. 5mm and SSG-5H: 0. Using the original wiring, the yellow wire from the triple is the control_pin and the white wire from the pair is the sensor_pin. 24 in PrusaSlicer my first layer is beautiful. jschuh closed this as completed on Dec 4, 2022. 288. It's a relative number, which means it's going to adjust the current z_offset by that amount, not change the z_offset to that amount. The z_offset is the distance between the nozzle and bed when the probe triggers. z} in the same macro that issues the G28, but macros are evaluated in entirety before any commands are run. Python 82. 0. 05 MOVE=1. To lower the nozzle enter the below command. Given the error, it seems most likely that the filename path is not valid. 5 as a safety factor to prevent crashing the nozzle into the print surface during initial operations. Collaborator. Note that during calibration you will need to let the z axis go negative, so you can add position_min: -3 until you're done calibrating. 549bed7. Instead, Klipper prefers human readable “extended G-Code commands”. I then removed the sensor, adjusted the height using a piece of paper, and pressed ACCEPT and SAVE when everything looked OK. I also really like my HEAT_SOAK and M600 macros but they are pretty overengineered like most/all of my code so I dunno that I would actually recommend anyone try to use my stuff. log (348. Click to the “Z_OFFSET” button, then your printer will start to move and stop above the center of the bed. FLSUNSR: CURA Mar 24, 2024 · Tweaking the Z offset is done slightly differently with Cartographer compared to using a standard probe, for example, with Cartographer you can't use `PROBE_CALIBRATE` to fine tune the offset, as that will reset the 0 point, so you need to tweak it manually. cfg. 1 When measuring I get roughly 1mm Am I doing something wrong?! How A Klipper plugin and macros for controling a Toolchanging 3D printer - TypQxQ/Klipper_ToolChanger. According to your log you are homing with an endstop for Z, but you also have a BLTouch. cfg und ändern in Zeile 31 die Voreinstellung für z_offset: von 0. On Marlin, z-offset is simply a gcode offset that is applied to every gcode command. 05 for +baby steps, and another macro with SET_GCODE_OFFSET Z=-. The only thing we were missing was MOVE=1. org/Bed HDMI Capacitive Lcd for KLIPPER SCREEN. First off, your position_endstop should be commented out. OrcaSlicer profiles (BETA) They are preconfigured to work with klipper and kobra 2 neo, in the start gcode loaded bed mesh profile is “default”. Setting Z offset elevation. ) Check your Z axis. 60 here. If I don't load them I perfect first layer printing, if I do load them my first layer printing goes to crap. 2" seguito da "SET_GCODE_OFFSET Z_ADJUST=0. A starting point for this value can be taken from the datasheet of the Omron switch (D2F-5: 0. cfg file that Klipper reads. Move the nozzle to the center of the bed and perform a manual Z offset calibration by moving the nozzle down, step by step, until it barely touches the print surface. Run a CALIBRATE_Z. Wait For The Printhead Being Moved I have modified my V400 with a E3D Revo hotend and Bondtech extruder. For example, if a secondary extruder is higher than the primary and needs a negative gcode offset, ie: SET_GCODE_OFFSET Z=-. This document describes Klipper's stepper phase adjusted endstop system. You don't want Klipper3d / klipper Public. For example, you could uncomment the following line to # automatically adjust your bed surface offsets to account for any changes made # to your Z endstop or probe offset. manual_probe. 2 mm aggiunti alla loro altezza Z. It computes always the correct offset independantly of the current temperature, used nozzle or used print bed or flex plate. You need to configure these pins according to your wiring. Writing Klipper Macros. Code:PROBE_CALIBRATETESTZ Z=Further reading: https://www. Z Offset Inconsistency. Purge and clean the nozzle if available. 05 mm. I am new to Klipper and pretty new to Octoprint. 60 became 2. So here you let Klipper know how far the probe is away from the plate. Yeah, z-offset is usually done after bed tramming and I think the klipper docs also says so, however I every now and then do the bed tramming and adjust if needed (only small amounts) without redoing the z-offset, just looking at the first layer when I print and adjust if I see its needed. so other than running testz z=-1. Grab a piece of paper and slide it between the nozzle and print bed and start lowering the nozzle until you feel a slight resistance when moving the paper back and forth. mc fx wp xp ve rv dw nn kf po
