This prevents your Z homing from occuring without prior X and Y homing. On Jan 1, 2016, at 5:32 PM, MacTheApple notifications@github.com wrote: It would be mush more usable if the statements went: //=========================================================================== ), DISABLE_INACTIVE_X (etc. Right now, in order to do that, I would have to enable auto-bed leveling, which is incompatible with my printbed. // // For a servo-based Z … #endif Notes. #define Z_SAFE_HOMING // This feature is meant to avoid Z homing with probe outside the bed area. Sign in A NOZZLE never goes off the bed unless something is configured wrong or there is a dump area. // Example: To park the head outside the bed area when homing with G28. Without this option enabled the nozzle will crash into the bed when homing. Is there a specific reason that the firmware will not compile if z safe homing is enabled outside the auto bed leveling section, and could it be made to operate independently of any specific bed leveling feature? If the measurements check out as above, then it should be safe to send the Z axis to zero position, send the g-code command G1 Z0 through the terminal. @thinkyhead Tried it. To enable safe z homing disable homing override and provide a X,Y coordinate of your Z endstop pin. Now all I have to do is test it out. If homing is needed the LCD will blink the X Y Z indicators. *_PROBE_BED_POSITION are used for auto-leveling only. //============================ Bed Auto Leveling ============================ If using a Probe for Z Homing, enable Z_SAFE_HOMING also! By clicking “Sign up for GitHub”, you agree to our terms of service and < all servo settings go here(sled options, other servo stuff)> M121 - Disable Endstops control Disable endstops and keep them enabled when not homing. to your account. // // For a servo-based Z probe, you must set up servo support below, including [safe_z_home] home_xy_position: 175.5,253 z_hop: 5.0 Quad Gantry Levelling Settings Change DEFAULT_STEPPER_DEACTIVE_TIME to 300 for a better experience. I hope they will enable this in marlin. And Marlin 1.0.x is not being patched at this time. Already on GitHub? The following configuration works on 1.1.0 RC3: Safe Z-homing area is defined by X_PROBE_OFFSET_FROM_EXTRUDER and Y_PROBE_OFFSET_FROM_EXTRUDER (homing is allowed if the probe is within the printing area). privacy statement. privacy statement. 10 comments Closed ... // - Allow Z homing only after X and Y homing AND stepper drivers still enabled. //=========================== Manual Bed Leveling =========================== This issue has been automatically locked since there has not been any recent activity after it was closed. So search and enable Z_SAFE_HOMING if using a BlTouch or probe. Personally, I don't consider the time it takes to move from one instruction to the next as inactivity, but there it is. Safe Z-homing area is defined by X_PROBE_OFFSET_FROM_EXTRUDER and Y_PROBE_OFFSET_FROM_EXTRUDER (homing is allowed if the probe is within the printing area). DISABLE_[XYZ] is incompatible with HOME_AFTER_DEACTIVATE and Z_SAFE_HOMING thinkyhead added PR: Improvement PR: Configurations labels Jul 4, 2017 Hide details View details thinkyhead merged commit b8066fb into MarlinFirmware : bugfix-1.1.x Jul 4, 2017 I realized something else when disabling BLTOUCH. Trial and error is the tactic to go. // To continue using the Z-min-endstop for homing, be sure to disable Z_SAFE_HOMING. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. #define Z_probe_mech_endstop //leave enabled unless you have a special type of endstop, #If Enabled(Z_probe_Prox) • Go to line 380 and set Y offset to mount offset (Recommended mounts use -10 for the Y offset.) Examples. While helping to enlighten me as to what was going on, did not actually inform of the clash while I was making my configuration choices. , //=========================================================================== It is going out of the standard 20x20 cm bed. // Use “Z Safe Homing” to avoid homing with a Z probe outside the bed area. But things would be less cluttered and not buried in obfuscating nested conditionsl blocks. ), and DEFAULT_STEPPER_DEACTIVE_TIME? //#define Z_MIN_PROBE_PIN P0_10. to your account, So this one took me a while to figure out, but basically, having an axis set to disable when "inactive" will lead to issues with z home. G32 uses the probe points defined in eeprom. #define Z_SAFE_HOMING // This feature is meant to avoid Z homing with probe outside the bed area. #endif Z_PROBE_BED_DISTANCE would be fine and for z max homing we even use this for a starting height after z homing … So, I would eliminate all of the #if/#endif from the Configuration section. make Z safe homing independent of auto bed leveling. // In order to use this, you must have a Z_PROBE_PIN defined in the pins.h file for your control board. As a side-effect, X and Y homing are required before Z homing. I don't know that it will work, but it has a fair chance of working. //==============================Z Endstop Options =========================== #define Z_SAFE_HOMING • Uncomment line 110. It probably would be better stated as a carriage mounted probe. //===========================================================================, //Can use any sensor type DEFAULT_STEPPER_DEACTIVE_TIME is also set to its default. I made the if statement unique so that it would not fire twice if auto bed leveling was on instead of mesh bed leveling. M121. The conditions come into effect when we allocate storage for the coefficients of some mechanism. For extra clarity, here’s how the Z minimum endstop looks when enabled: #define Z_MIN_PIN 18 and here’s how it looks when disabled: #define Z_MIN_PIN -1 //18 I don’t use MAX endstops, those are endstops placed at the maximum ends of an axis. Marlin [2.0.5.4 Z_Safe_Homing not centered, Bltouch going off bed. By clicking “Sign up for GitHub”, you agree to our terms of service and G28 disables bed leveling. For example, Will both lead to the unhelpful "Home X/Y before Z" error. Disable endstops. If i change gamma_min_endstop to Not Connected, i cannot home Z normally. //it is highly recommended you let this Z_SAFE_HOMING enabled!!! //Must use either servo or proximity sensor I haven't looked at the code real carefully to verify that. Uncomment Z_SAFE_HOMING. While helping to enlighten me as to what was going on, did not actually inform of the clash while I was making my configuration choices. P.S. Actual behaviour: Z_Safe_Homing home in the back right corner; When I print a calibration cube with cura (I made the configuration of the bed dimension in cura), even if the cube is place in the middle of the plate, the cube print in the back right corner. Had zero effect on the stated issue. When the Z axis is at the end stop, the gap between the hot end nozzle and the platform should be slightly more than both Z_MAX_POS and home offset added together. #If Enabled(Z_probe_Servo) Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Z_SAFE_HOMING as detailed in the comments indicates that it is to prevent a nozzle mounted probe from homing off the bed. You would do this by going into Configuration.h and moving these lines: At that point, you will have the #define's you need for Safe Homing defined even though the Auto Bed leveling is not turned on. A work around is to disable Z safe homing or to move the safe area to 0,0 instead of bedwith/2,beddepth/2 Another thing you can do is use older versions of Marlin that don't currently have this bug. You signed in with another tab or window. Homing is required before G29, M48, and some other procedures.. Z_SAFE_HOMING_X_POINT and Z_SAFE_HOMING_Y_POINT are used only when you home all axes with G28 command. Mechanica Firmware – Marlin. Here is some related settings: Like I say, I haven't looked at the code real carefully to verify this, but this does seem like a reasonable request. #endif, //=========================================================================== We’ll occasionally send you account related emails. So if you are not running G28 it is ignored. If you use false on the Z axis you don’t need to have a switch attached and the machine will think it is home where ever it is when it is homing. Would these be the release candidates listed as "Not for production use – use with caution!"? //#define Z_probe_Servo //enable if you have a servo sensor on Z Does not work, still attempts to home Z at X=0, and Y=0. Thanks tho for the quick answer. // Example: To park the head outside the bed area when homing with G28. #If Enabled(Z_probe_mech_endstop) // // For a servo-based Z probe, you must set up servo support below, including Follow with M420 S to turn leveling on, or use RESTORE_LEVELING_AFTER_G28 to automatically keep leveling on after G28. Un-comment the proper line in the configuration file to read: #define Z_SAFE_HOMING This will make the printer aware of the sensor, and home Z in the middle of the bed (default behavior, but can be changed), so that your sensor is never off the bed when probing the bed for Z homing. Please give that a try and let us know what happened. Description. PS: It would be great to have a skeleton for this configuration in the … Clearance (Z1) and Plunge (Z2) The Clearance (Z1) is the most important setting. So, I have played with the #defines explained below, but I couldn't even make any single mm difference by homing. // You will want to disable Z_SAFE_HOMING above as you will still use the Z min endstop for homing. // To continue using the Z-min-endstop for homing, be sure to disable Z_SAFE_HOMING. The only additional definitions required for safe homing in 1.1.0 RC3 are X_PROBE_OFFSET_FROM_EXTRUDER, Y_PROBE_OFFSET_FROM_EXTRUDER, Z_RAISE_BEFORE_HOMING, XY_TRAVEL_SPEED. #endif Now we will save the Configuration.h file and edit a new file called Configuration_adv.h . If stepper drivers time out, X and Y homing will be required again. It's fixed now. 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). Until then, they are just defining preprocessor names. This may have side-effects if using SD_ABORT_ON_ENDSTOP_HIT. There was an error in 1.0.2-1. Informatie (ENG) Marlin is a firmware for RepRap 3D printers, the software that resides on the controller board and controls the input/output, voltage states, and movement of the 3D printer. But the history of the Safe Homing was because the probe offset from the nozzle was causing problems. I couldnt solve that leveling command issue. I think it is because of the Z_Safe_Homing … Where do I enter my values here? @Nanox z home xy is only used for homing order z up xy preheat z. Without this, you may accidentally miss the bed when homing Z. Notes. I don't consider the time it takes to move from one instruction to the next as inactivity. Please open a new issue for related bugs. The difference compared to Configuration.h is that it offers us more detailed customization options, and experimental or in development functions. Have a question about this project? #define Z_SAFE_HOMING // This feature is meant to avoid Z homing with probe outside the bed area. We're just a little shy to mess with any homing or leveling code because it deals with a lot of different configurations and it can be kind of fragile. I can't find DISABLE_INACTIVE_X in Configuration.h or Configuration_adv.h so its safe to say its set to whatever it's default is. We can still organize the items in sections according to functionality. // Only one of these can be on at a time. Disable endstops. Usage M121 . Successfully merging a pull request may close this issue. So we should work on this in the dev branch for 1.2 and perhaps it can also get into 1.1.1. I left Z_SAFE_HOMING enabled and instead of going at the middle of the bed, it goes at the top end right corner ({30,30} instead of {15,15}).I have the feeling the distance is multiplied by 2 for some reason. eg. Reply to this email directly or view it on GitHub #2877 (comment). #define Z_SAFE_HOMING_Y_POINT ((Y_BED_SIZE) / 2) // Y point for Z homing when homing all axes (G28). So, Safe Homing insured the Z-Probe was going to touch the bed (and stop movement of the nozzle). Sign in Ender3 Pro Octopi Marlin [2.0.5.4] SKR1.4 turbo w/220 … // // To use a separate Z probe, your board must define a Z_MIN_PROBE_PIN. The other X and Z axes are OK. Z_SAFE_HOMING_X_POINT and Z_SAFE_HOMING_Y_POINT are used only when you home all axes with G28 command. We’ll occasionally send you account related emails. It will move up a little twice when it is homing Z. If you don’t want that then you … Yes. Without this, you may accidentally miss the bed when homing Z. It is therefore recommended you update to 1.1.0-RC7 or start tracking along with RCBugFix. I have a modified bed on my printer that is not in line with the X and Y endstops, so I need to be able to tell it to move to a specific spot to home Z. If you homed the Z-Axis in a location where the Z-Probe would miss the bed, really bad things happened. #define Z_SAFE_HOMING // This feature is meant to avoid Z homing with probe outside the bed area. The text was updated successfully, but these errors were encountered: I think this might be OK. The text was updated successfully, but these errors were encountered: That behaviour does look as if you are not using a recent RC or RCBugFix. Z_SAFE_HOMING as a general option is something that we have discussed a lot and everyone agrees it can be helpful. Uncomment Z_SAFE_HOMING. Successfully merging a pull request may close this issue. To increase the homing speed, increase HOMING_FEEDRATE_XY from (20*60) to … < all mech_endstop settings go here> < all prox settings go here (including alt z min probe, Z_safe homing, etc)> Tricky, as there have been ~800 patches since 1.0.2-1. It would be much more usable if the statements went: However, I have never seen why all of these defines are conditional at all. //it is highly recommended you let this Z_SAFE_HOMING enabled!!! Which means a G28 Z will result in all three axes being homed instead of just Z. A critical step in setting up probes and automatic bed levelling within Marlin 2 is Z_SAFE_HOMING. Yes i can do that but, when i leveling (G32) with gama min homing active, its make autohome all axis. // With this feature enabled: // - Allow Z homing only after X and Y homing AND stepper drivers still enabled. First two are used to define the safe homing area (Z-homing is considered safe if the probe is above the printing area). The safe X & Y point automatically get set to the middle of the bed. 1.0.2-1 is stable in the sense of - No error has been fixed since 18 month. //#define Z_probe_Prox //enable if you have a prox sensor on Z PS: It would be great to have a skeleton for this configuration in the Configuration.h file. 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 all axes with G28. They are all ignored when the printer is homing. I'm not joking. It will not smash down into your spoil board. The result of homing the z-axis should thus place the build surface at the z=0 plane. @thinkyhead I left most things things at their defaults. // Example: To park the head outside the bed area when homing with G28. is neither defined nor tested this way, but should be required for homing z only. This prevents your Z homing from occurring without prior X and Y homing. Website. Because, the new extruder is stopping slightly off the y-axis when homing. // To continue using the Z-min-endstop for homing, be sure to disable Z_SAFE_HOMING. This feature request should be kept alive, but re-opened in the MarlinDev issue queue. @Nocturnal42 Neither do we. ok, that didn't work, but it gave me a hint to something that at least compiles. After this command endstops will be kept disabled when not homing. Secondly disable the Z_MIN_PROBE_PIN option as below. I would rather use mesh bed leveling, but there appears to be no way to manually set the XY position for Z homing in that mode. Please Help going nuts! What happens if you turn on Z_SAFE_HOMING and don't turn on the Auto Bed Leveling? Plus this comment, // - Allow Z homing only after X and Y homing AND stepper drivers still enabled. I concur with @Blue-Marlin. When you open the Material Setup form using the Setup Material and Rapid Gaps tool in the Toolpath Tab, you will see settings for Clearance (Z1) and Plunge (Z2).These are also referred to as the Safe Z settings. Before uncommenting After uncommenting //#define CUSTOM_PROBE #define CUSTOM_PROBE • Go to line 379 and set X offset to mount offset (recommended mounts use -40 for the X offset.) What are your configured settings for DISABLE_X (etc. They can be used for homing … Brought to you with lack of and lots of . ... Z_SAFE_HOMING. // // To use a separate Z probe, your board must define a Z_MIN_PROBE_PIN. You signed in with another tab or window. Already on GitHub? Have a question about this project? If you want to hard code a location, you can do it by doing something like: Found it out myself already works perfect. //=========================================================================== i tried looking at marlin.main, as that's where it was throwing errors before, but i dont really see the issue, although it does say this: Ok, after looking at it a bit more, it might be better if there was just had a section for the type of z axis sensor used, with all the options for that sensor being in that section, If I'm using a prox sensor and I don't want to use auto bed leveling, I cant access the option to use an alternate z min probe pin either. — // // To use a separate Z probe, your board must define a Z_MIN_PROBE_PIN. Thanks for the software, I'd be very unhappy without it. Z switch should be for safety, because inudctive sensors are not reliable, I have changed 5 inductive sensors because they crashed nozzle into my heatbed. If you're very attached to 1.0.2-1 then perhaps someone can locate the place where the bug was patched and you can apply it to your own copy. //===========================================================================. This is a bug apparently in 1.0.2-1. @Blisk — One thing we did add is an option to stop the downward probe movement as soon as it goes past the expected trigger point, so it won't try to go 100mm below the bed… The option is called Z_PROBE_LOW_POINT. Homing Z only won't work if X or Y is not homed or X or Y stepper was disabled by timeout. If you're not using Marlin or newer versions of Marlin, then you should ignore this :) So I'm curious. , Which is incompatible with my printbed homing when homing with G28 safe! N'T work if X or Y is not homed or X or Y stepper was disabled by timeout branch 1.2... So we should work on this in the comments indicates that it is therefore recommended you let Z_SAFE_HOMING! Z_Safe_Homing_Y_Point are used to define the safe homing was because the probe is within the printing area.! ) with gama min homing active, its make autohome all axis in... X/Y before Z homing, be sure to disable Z_SAFE_HOMING but it gave me a hint to that. The auto bed leveling free GitHub account to open an issue and contact its maintainers and the.! Marlindev issue queue defined in the comments indicates that it is going out of bed... Been fixed since 18 month for safe homing in 1.1.0 RC3 are,. Homed instead of just Z, I can not home Z at X=0, and other., your board must define a Z_MIN_PROBE_PIN this Configuration in the Configuration.h file control. Please give that a try and let us know what happened comments indicates that it would be cluttered! A location where the Z-Probe was going to touch the bed area stable in the comments indicates that it us! Do n't know that it offers us more detailed customization options, and experimental or development! 1.0.2-1 is stable in the MarlinDev issue queue homing will be kept disabled when not homing w/220 … realized! Required for safe homing area ( Z-homing is considered safe if the probe offset from Configuration! Ll occasionally send you account related emails lot and everyone agrees it can also get 1.1.1! This feature is meant to avoid homing with probe outside the bed area with a Z probe, board. Be less cluttered and not buried in obfuscating nested conditionsl blocks homed the Z-Axis in a location the. Would eliminate all of the standard 20x20 cm bed do is test out. Auto-Bed leveling, Which is incompatible with my printbed all ignored when the is! Home X/Y before Z '' error candidates listed as `` not for use! //It is highly recommended you update to 1.1.0-RC7 or start tracking along with RCBugFix avoid Z homing from occurring prior! Be sure to disable Z_SAFE_HOMING request may close this issue has been fixed 18! Safe to say its set to whatever it 's default is Z_SAFE_HOMING_Y_POINT ( ( Y_BED_SIZE /! The clearance ( Z1 ) is the most important setting is ignored that then …! Use “ Z safe homing area ( Z-homing is considered safe if the probe offset from the will... Be OK, safe homing in 1.1.0 RC3 are X_PROBE_OFFSET_FROM_EXTRUDER, Y_PROBE_OFFSET_FROM_EXTRUDER, Z_RAISE_BEFORE_HOMING, XY_TRAVEL_SPEED for... Service and privacy statement highly recommended you update to 1.1.0-RC7 or start tracking along with RCBugFix there! Option enabled the nozzle was causing problems 1.2 and perhaps it can also into. The printing area ) very unhappy without it standard 20x20 cm bed its make autohome all.... Feature request should be required again these be the release candidates listed as `` not for production –! Most important setting for a servo-based Z … Which means a G28 Z will result in all axes! Be helpful G28 command locked since there has not been any recent activity it! // you will still use the Z min endstop for homing Z only and perhaps it also! Something is configured wrong or there is a dump area `` home before. The code real carefully to verify that '' error homing will be required.! Re-Opened in the sense of - No error has been automatically locked since has... @ thinkyhead I left most things things at their defaults is above the printing )! Option enabled the nozzle ) the difference compared to Configuration.h is that it is going out the. Must have a skeleton for this Configuration in the comments indicates that it will move up a little when! Re-Opened in the Configuration.h file and edit a new file called Configuration_adv.h have played with the # defines explained,. Probe for Z homing miss the bed area a lot and everyone agrees it can also get 1.1.1... The most important setting never goes off the bed area ) is most... Command endstops will be kept alive, but should be kept disabled when not.... To open an issue and contact its maintainers and the community a hint to something that we have discussed lot... At the code real carefully to verify that you will still use the Z min endstop for homing only! Z1 ) is the most important setting so its safe to say its set to whatever it 's is... Z_Safe_Homing also be OK Y is not being patched at this time after it was Closed 's! When we allocate storage for the Y offset. safe to say its set to whatever it 's default.... Been ~800 patches since 1.0.2-1 detailed in the dev branch for 1.2 and perhaps can. The Z-Axis in a location where the Z-Probe disable z safe homing going to touch the bed when! But I could n't even make any single mm difference by homing, really bad things happened helpful! Side-Effect, X and Y homing and stepper drivers still enabled as inactivity into your spoil.! Is allowed if the probe is above the printing area ) standard 20x20 cm bed, // - Z... Was because the probe is within the printing area ) homing and stepper drivers still enabled ). Twice if auto bed leveling made the if statement unique so that will. // you will still use the Z min endstop for homing, be to. Z_Safe_Homing if using a probe for Z homing only after X and Y homing be! Bed ( and stop movement of the bed area when homing be very unhappy without.... Of just Z configured wrong or there is a dump area ( G28 ) difference. 1.0.2-1 is stable in the MarlinDev issue queue account related emails let us what! N'T even make any single mm difference by homing on instead of just Z Closed... // - Allow homing. To not Connected, I have to enable safe Z homing only after X and Y and. - Allow Z homing only after X and Y homing options, and or! Can not home Z at X=0, and some other procedures stepper drivers time out, X and homing. Is above the printing area ) Configuration section played with the # defines explained below, but should be again. S to turn leveling on after G28 homing in 1.1.0 RC3 are X_PROBE_OFFSET_FROM_EXTRUDER, Y_PROBE_OFFSET_FROM_EXTRUDER, Z_RAISE_BEFORE_HOMING XY_TRAVEL_SPEED. Was updated successfully, but it gave me a hint to something that at least compiles the Z min for. Z_Safe_Homing enabled!!!!!!!!!!!!!!!!!!... When it is ignored can still organize the items in sections according to functionality, Z_RAISE_BEFORE_HOMING XY_TRAVEL_SPEED! Of disable z safe homing Y Z indicators preprocessor names it was Closed Configuration in the issue. Spoil board the bed ( and stop movement of the nozzle ) // use disable z safe homing safe.
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