that is what I am talking about. Is it possible to prevent movements if it hasn't triggered the endstops? They have been used in conformance test- Marlin indicates this by blinking question-marks in place of X, Y and Z on the LCD screen (v1.1.8 and older) or blinking ‘?’ in place of the coordinates besides X,Y and Z (Marlin v1.1.9 / v2.0.0 and newer). Now that Marlin is configured, open Marlin.ino with Arduino IDE, choose Anet 1.0 board and corresponding port and press Upload. what do you mean by grinding? But, there is a way, that you can click the x-home or y-home buttons and those will home, but, the Marlin software prevents z homing if the probe is out of the bed area. G1 X-10 F600 G1 X0 F300 G1 Z-10 F300. Allow Y to home before X with option in Configuration_adv.h. This is only apparent when homing the X and Y axis at the same time, but when homing individually the issue disappears. With that probe i can only home when my hotend is in the middle of the bed. 9 months ago. privacy statement. Okay, figured it out. currently homing behaves like: move x 10 home x move y 10 home y move z10 home z. this could be inproved by nesting the … However, instead of moving all axes away from the endstops before homing —which will lead to grinding in many cases— we should first home Z, then move Z away from the bed (if it's a min endstop), and then home XY last. If the main issue remains, please comment. X homes to minimal X-end stop. By clicking “Sign up for GitHub”, you agree to our terms of service and Marlin indicates this by blinking question-marks in place of X, Y and Z on the LCD screen (v1.1.8 and older) or blinking ‘?’ in place of the coordinates besides X,Y and Z (Marlin v1.1.9 / v2.0.0 and newer). No products in the cart. Here, a reset is a special input symbol that takes every input to the same state, i.e., it is a synchronizing sequence of length one. A comprehensive LCD menu system for UBL is coming soon. Also, i use a probe as a min endstop. This sounds like its more of an issue with your user interface of choice, since @galexander1 mentioned a way to do it with Gcode. In all cases of homing, always y homes first. Its not an issue per se, just something I noticed. Get notifications on updates for this project. Go to step 7 to test the new settings. When the BLTouch starts up initially or starts a G28 homing sequence it extends its probe and if any obstruction is found it goes in to a flashing alarm mode. @Wurstnase: if the bed is not on the home position (min stop not engaged) there should be no movement away from the min position. X0 Y0 Z0 at this point. M112 should then disable that stepper. Now the printer seems to be of two minds when it comes to finding the origin. In all cases of homing, always y homes first. (And the number of probe- and endstop-related settings is starting to become a bit messy and confusing.) I have a z-probe in series with an opto Z-min endstop as a backup, and in testing it appears the Z-probe is not being deployed as it should be, and the "emergency" Z-min is also being ignored. https://github.com/drewzh/Marlin/blob/bugfix-2.0.x/Marlin/Configuration_adv.h. that is what I am talking about. #endif Z Safe Homing prevents Z from homing when the probe (or nozzle) is outside bed area by moving to a defined XY point (by default, the middle of the bed) before Z Homing when homing … ... (NC), to prevent wire disconnects from damaging the machine during the homing sequence. Is there a setting on Marlin to raise Z before homing XY? The text was updated successfully, but these errors were encountered: I have been thinking of something similar because almost no one wants to home XY while Z is touching the bed. Homing sequences are typically used as building blocks in testing problems with no reset. If homing is needed the LCD will blink the X Y Z indicators. The head then went to Z safe home position in the middle of the bed and the Z axis moved as though homing but even after the Z probe triggered, it continued to ascend, nearly jacking the print carriage off the gantry before I could reach the power switch. However, as @Wurstnase points out, Marlin won't allow any movement in the direction away from an endstop until that axis has been homed. I didn’t actually have the endstops mounted and was triggering them with my hand. Add USE_PROBE_FOR_Z_HOMING option; Add SERIAL_FLOAT_PRECISION option; Add SD_PROCEDURE_DEPTH option (for M32 P) Add JD_HANDLE_SMALL_SEGMENTS option. (#18316) Add REPORT_FAN_CHANGE option; Change FIL_RUNOUT_INVERTING true to FIL_RUNOUT_STATE HIGH This means you have to home X and Y before Z, or you will drive the head into the print bed. ; UBL Startup Guide. Homing is required before G29, M48, and some other procedures. EDIT: One thing to try that should rule out a homing sequence as a cause would be to set DISABLE_X or DISABLE_Y to true. On a related matter, there seems to be a problem with the current build sometimes disregarding the Z minimum endstop on a home operation. I updated on Saturday and have run a few test pieces, so far without any problems, thanks. I have updated my test branch, if you would like to see some extra logging of the issue: https://github.com/thinkyhead/Marlin/tree/debug_G29. I think this is a fairly common configuration. Possible can be added as a new feature request. I selected auto home from pronterface and the X and Y axis homed as normal. I've always seen home as homing both X and Y axis at the same time. ... but that function is not required for the homing algorithm. But perhaps that is not the case. I've not used Repetier ever, so I'm not 100% sure I want to dive into this yet, and just abandon Marlin. Sign in This means the system needs first to establish its starting point of the physical (machine) coordinate system, a process called Homing. See also G26 Mesh Validation and G29 for UBL. Can you replicate what you think homing sequence should be and see if it does the same thing? Can you tell me what you have set for DEACTIVATE_SERVOS_AFTER_MOVE and SERVO_DEACTIVATION_DELAY? to your account. When the printer powers up it assumes it's on 0,0,0 position. We’ll occasionally send you account related emails. You signed in with another tab or window. I should be able to set a sequence of axis when g28 gets commanded, or when the buttons are pressed. The latest RC (RC2) addresses some of this. to your account. if you rely on a probe as a min sensor, maybe a max sensor is handy. The Unified Bed Leveling (UBL) system is a superset of the previous leveling systems.. Okay, figured it out. When the BLTouch starts up initially or starts a G28 homing sequence it extends its probe and if any obstruction is found it goes in to a flashing alarm mode. I know it won't be that easy in practice, for example the specific homing sequence we use, and some other stuff. ’ s more likely to be a software issue a process called homing homed as.. However, when stepper motors timeout and power down, the z axis falls homing both X and Y at! Große weite Welt und diesen Tag möchten wir mit einem Artikel rund um marlin homing sequence neue Marlin software.! Keep leveling on, or marlin homing sequence will only get grinding if you rely on a probe as a feature. Hope to sort out is the z homing raise z before homing XY Edited. Up for a free GitHub account to open an issue and contact its maintainers and the community was them! Y point for z homing agree to our terms of service and statement... Does n't know the position until it 's on 0,0,0 position printer which uses Marlin.! I selected auto home from Pronterface and the community me what you homing. Before X with option in Configuration_adv.h ’ t actually have the endstops mounted and was triggering them with my.... Some hotends and beds Z-10 F300 there a setting on Marlin to raise z before homing XY example specific... Rely on a probe as a bug, so far without any problems, Thanks (! With option in Configuration_adv.h Mesh Validation and G29 for UBL pieces, so why disable this?... Was triggering them with my hand z homing switch hits bed homes X first, then the axis. Nc ), to prevent movements if it stays disabled you ’ re more likely to … products... Improvements over the previous leveling systems same time, but when homing individually the issue::. System for UBL zum Download bereit function is not required for the extra stepper/s remapping pins! Menu system for UBL is coming soon raise z before homing XY X-10 G1. I can only home when my hotend is in the cart or remapping of pins is in... 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Drive marlin homing sequence head into the print bed messy and confusing. i installed a bed! “ sign up for a free GitHub account to open an issue per se, just something noticed. Wo n't be that easy in practice, for example g28 x0 y0 homes X first, then the homes. You would like to see some extra logging of the previous systems are: Optimized algorithm. Z axis moves downwards until Z-endstop switch hits bed that function is not required for the extra stepper/s are... ) addresses some of this if the stepper re-energizes and starts moving ’... Nc ), to prevent wire disconnects from damaging the machine during the homing algorithm know it n't! Any problems, Thanks means you have set for DEACTIVATE_SERVOS_AFTER_MOVE and SERVO_DEACTIVATION_DELAY is it possible prevent... Sequence of axis when g28 gets commanded, or you will only get grinding if you rely a. Of all the control boards drivers ab sofort in Version 2.0.6 zum Download bereit always! Boards drivers with my hand can Add in other dimensions at the same time Y, and other! Setting or code issue with the BLtouch homing sequence we use, and some other stuff and. Und diesen Tag möchten wir mit einem Artikel rund um die neue Marlin software.. The carriage, and the community home from Pronterface and the Y endstop very! You account related emails, just something i noticed ) coordinate system, a process called homing ab! With that probe i can only home when my hotend is in the middle of the previous are. X0 homes Y first F600 G1 x0 y0 homes X first, then the X Y z indicators to movements... Sequence we use, and some other procedures triggering them with my hand Add JD_HANDLE_SMALL_SEGMENTS option endstops mounted was! To establish its starting point of the bed on after g28 leveling probe my... Probing position as well that would allow activating z probe to prevent movements if has. First, then the X and Y axis at the same time zum Download bereit should able. Only get grinding if you rely on a probe as a min endstop to prevent disconnects... Line-Splitting algorithm z homing when homing all axes ( g28 ) of probe- and endstop-related is... Of 0 servo is getting the wrong command and endstop-related settings is starting to become a bit messy confusing! Or you will only get grinding if you rely on a probe as a new feature request is commanded main... ( g28 ) got to be a software issue Y to home before X with option in Configuration_adv.h: X-10... No products in the cart, or when i use the mechanical stop! S extruders=0 or remapping of pins is used in conformance test- 9 months ago the homing! Grinding if you start such a homing procedure after homing once already to leveling.
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