In Configuration.h tab: • Go to lines 120-140 and un-comment which suits your configuration. Default for this setting puts the nozzle in the center of the bed for G28Z, but you can define a corner offset if you wish. ... And now enable Z_SAFE_HOMING (around line 1145). The idea of Z safe homing is that it is forced to home Z in the middle of the bed (bed size/2) so the inductive probe does not try to trigger in thin air. Does anybody know what I would need to change in Marlin so that G28 only homes the X and Y axis? (like marlin Z Safe Homing) King Regards. //#define MANUAL_Z_HOME_POS 0 // Distance between the nozzle to printbed after homing // Use "Z Safe Homing" to avoid homing with a Z probe outside the bed area. BLTouch for ABL Bilinear. Here are some highlights on key features enabled in this custom version of Marlin 2.0.6: TMC2209 drivers with Stealth-chop & Hybrid threshold enabled on X, Y, Z axis. Smoothie home X and Y perfectly, and start homing Z at Xmin,Ymax point. If not make sure offset relative to extruder is set correctly. T… Marlin v2.0.6 – Posted 28th July 2020; Key Features. It is also hard to decide if this is a [BUG] or [FR] for Marlin, however it is certainly [BUG] for me. After the final adjusted firmware upload, and bringing the sensor up, I see that the extruder pushes the bed down a bit when I auto home and then the LCD screen says probing failed. Table of ContentsPreparationPlatformIO InstallationFirmware sourcesBinary releaseBuilding your own … 0. Recommended for those who are using the Z Probe for Z Homing (as Z-Endstop) This feature has two changes: 1) Allow user to choose where the Z Probe will touch the bed when homing all axis together (G28) by setting below defines: Z_SAFE_HOMING_X_POINT Z_SAFE_HOMING_Y_POINT 2) Prevents the user to perform Z Axis Homing when the Z Probe is outsite bed. Bl Touch ABL Sensor. Since I’m homing to Z-max when G28 is executed by marlin it will home Z first (moving to the endstop, and setting Z to Z_MAX_POS (0 in my case). * * The issue: If a thermistor falls out, it will report the much lower ... #define Z_SAFE_HOMING_X_POINT ((X_BED_SIZE) / 2) // X point for Z homing when homing all axes (G28). Guten Morgen in die große weite Welt und diesen Tag möchten wir mit einem Artikel rund um die neue Marlin Software starten. G28 Z0 ; Home Z. I believe that should accomplish what you're after. It just hummed until I turned however, when I home the printer, the z axis seems to bind, and the z motors move out of sync. So search and enable Z_SAFE_HOMING if using a BlTouch or probe. Features Highlight . // - Move the Z probe (or nozzle) to a defined XY point before Z Homing when homing all axes (G28). When we finish the mounting and cable connections now we will alter some settings in Marlin configuration.h file. Z Auto Bed Leveling sensor and Z – End Stop. I know this is the same title as #12726, however I rather started a new issue for clarity as I made quite a few tests. Auto Homing showing failing Z-homing. The nozzle goes to 25,25 for the first probe spot, which does not work. #if ENABLED(Z_SAFE_HOMING) #define Z_SAFE_HOMING_X_POINT ((X_BED_SIZE) / 2) // X point for Z homing when homing all axes (G28). I made all the config changes in the configuration.h file for my old settings. which gives me X= 95 and Y = 84, But instead, by Z axis is homing on . • Click line 97 and hit enter twice, now paste this into line 98: #define AUTO_BED_LEVELING_BILINEAR #define BLTOUCH #define SERVO0_PIN 29 #define Z_SAFE_HOMING Not sure if this is due to SAFE_HOMING option or something that was enabled. Z_AFTER_HOMING for a standard raise after G28; Individual edge insets for corner leveling; Separate config for secure data (Excluded by .gitignore) Boards / Pins. define Z_SAFE_HOMING. Bed levelling is used in addition to a Z-stop switch. z with temp. • Make sure line 96 is commented out. // To continue using the Z-min-endstop for homing, be sure to disable Z_SAFE_HOMING. This guide is focused on the setting up Marlin 1.1.x with your wired and working BLTouch. // - Move the Z probe (or nozzle) to a defined XY point before Z Homing. Without this option enabled the nozzle will crash into the bed when homing. That way you can say where to probe for homing z. Re: [smoothieware-support:3639] Homing With ZProbe Issue: Arthur Wolf: 6/28/16 11:02 AM: you need to do something like : G28 X0 Y0. If compare to the latest (v1.1.9) Configuration.h file from GitHub, here are the changes: X offset – 26; Y offset – 0; Z offset – Calibrate yourself (Set to -1) Baby stepping – enabled; ABL set to #define AUTO_BED_LEVELING_LINEAR for flat bed surfaces; Grid-points set to X=3 Y=X; Z Safe Homing Enabled; LCD Controller. G28 - It will home on X and Y then go to the middle of the bed to home the Z. Uncomment Z_SAFE_HOMING. Without this, you may accidentally miss the bed when homing Z. Uncomment and set #define MANUAL_Z_HOME_POS -0.15; Uncomment #define Z_SAFE_HOMING. G1 X100 Y100. // Example: To park the head outside the bed area when homing with G28. This will be performed before any bed levelling procedure; Using Auto Bed leveling¶ Refer to Marlin's excellent Wiki on the subject. Everything is working from what I can tell as it should except for when I home the Z axis. Marlin 2.0.5.3; Filament Runout (Connect to E0DET pins) Square Wave Stepping (Beta Feature) * Create a 50/50 square wave step pulse optimal for stepper drivers. This means that the z axis is homed after both x and y axis are done on the center of the bed. Basically you tell the Marlin firmware which end of the axis the end stop switch is located. Disable Z stallGuard by default; Allow CASE_LIGHT_PIN override from config; Sanity check 3-point defines; Sanity-check Chamber thermistor pin; Add thermistor 502 for Zonestar Prusa P802M; Use center XY for Z Safe Homing default; Independent X2,Y2,Z2,Z3,Z4 endstop inverting; New Machines and Boards. // - Prevent Z homing when the Z probe is outside bed area. Marlin always includes safe min and max temperature ranges which * protect against a broken or disconnected thermistor wire. In configuration_adv.h I have set the first probe location to be 25,25 from zero. // # define Z_SAFE_HOMING # if ENABLED(Z_SAFE_HOMING) A critical step in setting up probes and automatic bed levelling within Marlin 2 is Z_SAFE_HOMING. G29 - Probe the points The defines for the PROBE_BED_POSITION are the locations where your probes will actually fall. This article describes another release for Marlin this version is 2.0.7.2 based on the release from 22nd October 2020 for use with the Ender 3 Pro and a custom hardware configuration: BigTreeTech SKR 1.4 board, TMC2209 drivers, BLTouch v3.1 (others supported check wiring). #define Z_SAFE_HOMING_Y_POINT (Y_MAX_LENGTH/2) // Y point for Z homing when homing all axis (G28) #endif. Cihan. Menu for levelling bed corners. Then it moves to home X, and it tries to move the Z-axis up to Z_HOMING_HEIGHT, which is set from Z_CLEARANCE_BETWEEN_PROBES if that is defined (which it was for me, and it was 5). To increase the homing speed, increase HOMING_FEEDRATE_XY from (20*60) to (40*60) and HOMING_FEEDRATE_Z from (4*60) to (8*60). Intro. #define Z_SAFE_HOMING. Removed Safe Homing ( printer no longer homes Z in the middle of the bed, I can't see this being beneficial if you are not using a probe.) // // With this feature enabled: // // - Allow Z homing only after X and Y homing AND stepper drivers still enabled. You might want to set homing order to xy Temp. Also your z probe xy offset is 0 whcih is only the case if it is the extruder nozzle. Part 3 – Marlin Configuration Setup. Z_SAFE_HOMING_X_POINT= 20 (when doing Z homing the head is moved so optical Z sensor is located at X=20, Y=20 mark on the PCB bed) Z_SAFE_HOMING_Y_POINT= 20 X_PROBE_OFFSET_FROM_EXTRUDER = -25 (meaning Z probe optical sensor is mounted 25mm to the left of left nozzle - measure it using digital caliper) Y_PROBE_OFFSET_FROM_EXTRUDER= 0 my z axis works normally when moving the z axis independently. Right now, G28 first lifts Z by 10mm, homes X and Y, and then tries to home Z, but since there is no endstop it would push the spindle into the wasteboard and probably rip itself apart. I recently decided to update my Prusa i3 to the latest Marlin firmware (it was on Oct 2013 build). We are using Marlin, and as close as I can tell, Z SAFE HOMING is enabled and should happen in the center of the bed, but after X and Y home, they don't offset and the Z probe does not come back over top of the bed. In order to do that, I need something like Marlin's Safe Z Homing which sets the probe to the center of the bed and then homes Z. crussty. Denn vor knapp 3 Stunden wurde ein „Big Update“ veröffentlicht und Marlin steht ab sofort in Version 2.0.6 zum Download bereit. // - If stepper drivers time out, it will need X and Y homing again before Z homing. 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