Sign in If you want to attach your Marlin_main.cpp file, I can look to see if you need to patch it so that you can use Z_min for your probe.-Jay On Tuesday, January 28, 2014 8:25:56 PM UTC-6, Ray Cheng wrote: Hi Jay, So I made the change with the Zmin to -1 in pin.h. In that case you can't move down. If the stepper re-energizes and starts moving it’s more likely to be a software issue. What is this about This post will give guidelines on how to flash your own marlin onto a Eryone Thinker S V2 (NOT the V1) or ER20 printer. what do you mean by grinding? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Ruger on Tuesday announced that their acquisition of the historic Marlin Firearms brand from Remington is complete, and the company is looking forward to … $\endgroup$ – Tim Shoemaker Mar 5 at 14:05 By clicking “Sign up for GitHub”, you agree to our terms of service and https://github.com/thinkyhead/Marlin/tree/debug_G29. I should be able to set a sequence of axis when g28 gets commanded, or when the buttons are pressed. Guten Morgen in die große weite Welt und diesen Tag möchten wir mit einem Artikel rund um die neue Marlin Software starten. Get notifications on updates for this project. 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. I will go into as much detail as possible but please keep in mind that marlin is constantly being developed and changes can lead to a setting being named differently, a file being renamed and so on. order you need. This is only apparent when homing the X and Y axis at the same time, but when homing individually the issue disappears. Get the SourceForge newsletter. At other values of y>0, we can prevent a crash, because the printer will never moved beyond x=0 in the negative space. #define SERVO_DEACTIVATION_DELAY 310, Thanks! Otherwise marlin assumes that z is hight enough and clearance is available. We’ll occasionally send you account related emails. We’ll occasionally send you account related emails. @thinkyhead However, as @Wurstnase points out, Marlin won't allow any movement in the direction away from an endstop until that axis has been homed. This way both the x and y endstops can be moved to the body of the printer, and eliminates three pesky wires from the moving carriage, by shifting them to the body of the printer. I know it won't be that easy in practice, for example the specific homing sequence we use, and some other stuff. 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. Is there a setting on Marlin to raise Z before homing XY? that is what I am talking about. Have a question about this project? Get newsletters and notices that include site news, special offers and exclusive discounts about IT products & services. The latest RC (RC2) addresses some of this. I installed a BLTouch bed leveling probe on my printer which uses Marlin 2.0.5.3. You signed in with another tab or window. 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). Homing endonuclease recognition sequences are long enough to occur randomly only with a very low probability (approximately once every 7 × 10 9 bp), and are normally found in one or very few instances per genome. Copy link So I now have safe homing and Grid formation leveling, however the last bug I have is after the G29 sequence, the probe stays over the last point, which leaves the bed at X0.5, Y200, Z5.06 BUT the printer thinks it is at X0.5, Y0, Z5.06 meaning I can't get the Y axis back over to start printing? Thank you John Edited 1 time(s). ... but that function is not required for the homing algorithm. ... Use homing sequence with preheat as these allow to set a probing position as well that would allow activating z probe. Sensorless Homing for Core kinematics; Power monitor and display. G1 X-10 F600 G1 X0 F300 G1 Z-10 F300. 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. Ok, so just to get that clear. By clicking “Sign up for GitHub”, you agree to our terms of service and If the main issue remains, please comment. Homing is required before G29, M48, and some other procedures. Now that Marlin is configured, open Marlin.ino with Arduino IDE, choose Anet 1.0 board and corresponding port and press Upload. @thinkyhead With my setup in the XY home position the print head is located off to the side of the bed, and in the Z endstop trigger height the head is below the level of the bed surface. See also G26 Mesh Validation and G29 for UBL. Possible can be added as a new feature request. They have been used in conformance test- Have a question about this project? Go to step 7 to test the new settings. Its not an issue per se, just something I noticed. 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 … Successfully merging a pull request may close this issue. And I assume your Z_HOME_DIR is -1… Hmm, so far the current Development code looks like it should at least try to call deploy_z_probe for homeaxis(Z_AXIS). I've always seen home as homing both X and Y axis at the same time. You signed in with another tab or window. A comprehensive LCD menu system for UBL is coming soon. #define DEACTIVATE_SERVOS_AFTER_MOVE In all cases of homing, always y homes first. Successfully merging a pull request may close this issue. Already on GitHub? #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 … Denn vor knapp 3 Stunden wurde ein „Big Update“ veröffentlicht und Marlin steht ab sofort in Version 2.0.6 zum Download bereit. Axis sequence. The Unified Bed Leveling (UBL) system is a superset of the previous leveling systems.. 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 homing is needed the LCD will blink the X Y Z indicators. to your account. If you have your axis at the right end (for example) and try to move right ("move X +10") you will get a loud grinding sound as the motor torque fails to move the axis and the motor slips out of its magnetic hold. Is it possible to prevent movements if it hasn't triggered the endstops? ... After homing the 3d printer again, the Z axis will be updated, and the -2.5 position will become the new zero position. The main improvements over the previous systems are: Optimized line-splitting algorithm. @c-born It appears that the current conditions surrounding the call deploy_z_probe in homeaxis are not correct, so it's just not getting called. This sounds like its more of an issue with your user interface of choice, since @galexander1 mentioned a way to do it with Gcode. 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. Marlin also has pretty much out of the box support for 2 drivers feeding 2 motors on Y which we use for out long axis because it has 2 motors. (#18316) Add REPORT_FAN_CHANGE option; Change FIL_RUNOUT_INVERTING true to FIL_RUNOUT_STATE HIGH to your account. Y homes to minimal Y-end stop. The value of PROBE_OFFSET_FROM_EXTRUDER is set at -2 in Marlin configuration.h if it is set at something else take that into account in the formula below. In general a change in behavior like this has to be done as a new feature, disabled by default, so users see consistent behavior on the next update. However, when stepper motors timeout and power down, the z axis falls. The X axis hits the endstop abruptly, whilst the Y endstop is very soft. Okay, figured it out. doing some mill type work with a sharpie, i noticed that the marlin 1.0.0 firmwar hase some issues with the order of things in homing. I do see this as a bug, so why disable this behaviour? Home; About Us. I should be able to set a sequence of axis when g28 gets commanded, or when the buttons are pressed. this seems to work. ... (NC), to prevent wire disconnects from damaging the machine during the homing sequence. Put it in your slicer's G-code prologue. Mugga. X homes to minimal X-end stop. I would also porobably turn off the homing bump for a … @Wurstnase: if the bed is not on the home position (min stop not engaged) there should be no movement away from the min position. 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. This is the homing sequence in Marlin. Last edit at 05/23/2015 02:59PM by johnka. Also, i use a probe as a min endstop. There are a lot of users which are using something like this. currently homing behaves like: this could be inproved by nesting the movements, saving some hotends and beds. If you’re coming in at a slow enough speed to … When the printer powers up it assumes it's on 0,0,0 position. (#17437) Configuration. If the homing speed is high, it might get a little bit of error, so it backs off a few mm and tries again at a slower speed. X, Y, and Z coordinates get assigned a value of 0. After detecting the home switch or home switch then index pulse (depending on configuation), and setting the coordinate of that point to HOME_OFFSET, LinuxCNC makes a move to HOME as the final step of the homing process. The next thing I have to sort out is the Z homing. 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. #define Z_SAFE_HOMING_Y_POINT ((Y_BED_SIZE) / 8)//((Y_BED_SIZE) / 2) Eryone also ups to feedrate to The default value is zero. I've not used Repetier ever, so I'm not 100% sure I want to dive into this yet, and just abandon Marlin. The z works correctly with Pronterface or when I use the mechanical z stop and disable BLtouch. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Follow with M420 S to turn leveling on, or use RESTORE_LEVELING_AFTER_G28 to automatically keep leveling on after G28. Your printer doesn't know the position until it's homed. Now the printer seems to be of two minds when it comes to finding the origin. 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. The position that the joint will go to upon completion of the homing sequence. This means you have to home X and Y before Z, or you will drive the head into the print bed. The unused extruder driver/s are used for the extra stepper/s. But perhaps that is not the case. M112 should then disable that stepper. Can you replicate what you think homing sequence should be and see if it does the same thing? No products in the cart. Allow Y to home before X with option in Configuration_adv.h. I updated on Saturday and have run a few test pieces, so far without any problems, thanks. https://github.com/drewzh/Marlin/blob/bugfix-2.0.x/Marlin/Configuration_adv.h. I agree that with all types of delta printers around, things get complicated, and i can see an option that looks for a delta flag somewhere to choose the order of things as the order used now ruins a lot of beds and nozzles as well on xyz printers without a heated bed. When using SENSORLESS_HOMING with TMC2209 drivers. Today I wanted to switch back to latest dev version of repetier, coming from marlin, but doesn't like it as much as repetier. Homing sequences are typically used as building blocks in testing problems with no reset. doing some mill type work with a sharpie, i noticed that the marlin 1.0.0 firmwar hase some issues with the order of things in homing. ; UBL Startup Guide. You can add in other dimensions at the same time: G1 X-10 Y-10 F600 G1 X0 Y0 F300 G1 X-10 Y-10 F300. Sign in $\begingroup$ Somehow in the homing sequence, the z servo is getting the wrong command. I hope to sort out the correct conditions asap. Ruger on Tuesday announced that their acquisition of the historic Marlin Firearms brand from Remington is complete, and the company is looking forward to … Z axis moves downwards until Z-endstop switch hits bed. 9 months ago. Okay, figured it out. X and Y move at the same time to position the Z-endstop probe to the center of the bed. X0 Y0 Z0 at this point. 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. if you rely on a probe as a min sensor, maybe a max sensor is handy. In all cases of homing, always y homes first. When you enable this by default we will crash a lot of working configurations. privacy statement. It works ok when homing each axis individually, but several times now when given a home command it has continued driving Z homewards, right through the opto-endstop with enough force to break it in half. 9 months ago. The home bump is what Marlin calls it when it backs off slowly and comes in for a second measurement. Can you tell me what you have set for DEACTIVATE_SERVOS_AFTER_MOVE and SERVO_DEACTIVATION_DELAY? I have a coreXY printer in which the X endstop is on the carriage, and the y endstop is on the body. privacy statement. It's got to be a setting or code issue with the BLtouch homing sequence. May 2017 edited May 2017. I think this is a fairly common configuration. If it stays disabled you’re more likely to … 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. Use whatever About Aha3D; Our Team; Careers at Aha3D So, you will only get grinding if you start such a homing procedure after homing once already. Marlin Firmware, a guide to setting first layer height using home offset (G-code M206), use home offset to set gap between hot end and the bed on the 3d printer. I didn’t actually have the endstops mounted and was triggering them with my hand. This means the system needs first to establish its starting point of the physical (machine) coordinate system, a process called Homing. I didn’t actually have the endstops mounted and was triggering them with my hand. yes, I have tried the feature for example g28 x0 y0 homes x first, g28 y0 x0 homes y first. 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. The text was updated successfully, but these errors were encountered: @rupin FWIW, you can do this with "G28 Z\nG28 Y\nG28 X\n". With that probe i can only home when my hotend is in the middle of the bed. Reply Quote. Now the problem is with step 4. This means the system needs first to establish its starting point of the physical (machine) coordinate system, a process called Homing. that is what I am talking about. G28 disables bed leveling. What interface separates x-home from y-home? Already on GitHub? Marlin’s extruders=0 or remapping of pins is used in the firmware to allow the use of all the control boards drivers. #define Z_SAFE_HOMING_Y_POINT ((Y_BED_SIZE) / 2) // Y point for Z homing when homing all axes (G28). When my printer is first turned on using 2.0.6.1 and set to begin homing, the Z_HOMING_HEIGHT option ensures that the z-axis raises 4mm to ensure it doesn't scratch bed surface. #define Z_SAFE_HOMING_X_POINT ((X_BED_SIZE) / 8) //((X_BED_SIZE) / 2) // X point for Z homing when homing all axes (G28). What is when you bed is on the maximum position? 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). (And the number of probe- and endstop-related settings is starting to become a bit messy and confusing.) 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 selected auto home from pronterface and the X and Y axis homed as normal. 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