marlin sensorless homing

Here is a video and the configs files in the description. The main reason for me would be not having to be leveling 4 corners with a sheet of paper or making squares in bed. I have gone through the datasheet and haven't seen anything that'd point to that anyway. I have just configured a TMC2209 for my X axis, with UART. If Marlin detects an error where the driver has shut down to protect itself, it can stop the print to save both time and material. The difference compared to Configuration.h is that it offers us more detailed customization options, and experimental or in development functions. The higher sensitivity also produces a much softer hit on the axises. This function allows me to calibrate the height of my leveling sensor in the center of the bed once with a sheet of paper. thx, In G28.cpp I raised the acceleration rate from 100 to 500 for homing which after lots of testing allowed me to run a higher sensitivity without the steppers tripping the endstops right away when starting to move. If using stealthChop it's important to have a well tuned chopper frequency as well. In this article we will only discuss the options to modify to support BLTouch / 3DTouch. If you put the head and bed manually in the initial coordinates, then after G28 the two axes move exactly 1/2 of the maximum coordinates, then the head is parked in Z. Sensorless homing is still out on the Z axis, can't get this currently to work regardless how much or how less power i give them. You must measure these values ​​to enter on your printer (do not use mine). They go in correct direction from display menu. by BTT DIAG pin was removed how told in manual. I’ve got mine working but for some reason the five buttons do not work. Download files and build them with your 3D printer, laser cutter, or CNC. 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. The higher the temperature, the lower the detection range. I have to say that I tried quite a few inductive and capacitive sensors, I even opted for the original PINDA 2 , which is very comfortable to install since is one of the few that actually powers 5V and gives quite a bit of precision. Once the motor reaches the current setting limit, the TCL output will activate to communicate when the hard stop is reached. If we use a self-leveling sensor (either BLTouch or any other), we must indicate to Marlin the position of the sensor with respect to our print nozzle. It is simply adding the G29 command to level your head before each impression. If it is, however, a firmware issue, this issue has merit and shouldn't be simply closed. Change your homing files' structures. But removing jumper onboard (XST or YST, which disconnects diag pin to endstop switch) will result in M119 saying "Triggered", Jumper engaged, and continuously says "open" If you have read the complete article, I congratulate you. It's problem only if i activated Sensorless homing. X, Y axis move fine (to right and back when adding +10 on the axis). So you can not leave a fixed value for PLA and another for ABS. @hackebike 120 on both x and y running on a corexy setup. Regards! Some TMC stepper drivers can detect when they bump into something that causes them to stop moving. Actual behavior: Stallguard triggers too early (moving 1mm and hitting nothing) with the 105 sensitivity, and too late (dangerously so) with 104. i am going to try even lower motor current to test. So the question is extremely simple. Marlin can be found here. Well, let’s start configuring our Marlin firmware to support BLTouch / 3DTouch sensors. @boelle Thank you for reopening it. I have no idea how to get further with this. Thanks a lot for your comment! We’ll occasionally send you account related emails. You are right the sensitivity value is a pain to find. Having a component that according to the conditions of use works differently has no meaning whatsoever. And in this other line of the code we are going to indicate that our installed sensor is a BLTouch / 3DTouch, which for Marlin come to be the same. For the rest, I have no idea why is doing that. You can use "M906 X200 Y200" to drop your motor current to 200ma on the X and Y axis and then home, I am curious to see if other people can test this. TLDR; The Creality machines do not need more than 1A per stepper driver and sensorless homing is useless (and inaccurate) on a printer that already has endstop switches. Recently a colleague sent me a BLTouch / 3DTouch sensor from the Geeetech brand. As I have seen in some places, but it was a little short after some tests and I decided to set it to 2.5mm. But when I home the axis, they move to the right/front insted of left/back. The drivers are also TMC2209 v1.2 by BTT, and I didn't cut any legs (I don't think this is needed on the ramps at all). Just one important thing. If I set the sensitivity to anything above 105 (M914 X105) and try to home the axis, it moves for about 1mm and then immediately stops. Very easy as you have been able to check, click on those 2 sites and that’s it. When the probe is retracted, it must be above the nozzle (otherwise we will have problems). MarlinFirmware/Marlin. Also you mention that your motor go to the wrong way, for that you need to invert the motor direction in configuration.h. Marlin 2.0 on the SKR 1.3 with TMC2209 and sensorless homing Dropped motor current. Or alternatively, you can follow us on our social networks. I usually make 9 checkpoints before each print, you can expand or reduce it, that is up to you. Wrong way only for G28 command. The higher sensitivity also produces a much softer hit on the axises. that works for me correctly. If you need to completely configure Marlin do not hesitate to visit the Complete guide: Configure Marlin 2.0.3 from scratch and not die trying that you also have available on our website. Now we will save the Configuration.h file and edit a new file called Configuration_adv.h . Everything working as intended. Hello, thank you for your article. I have been doing plenty more testing and I can definitely confirm that in my case, stallguard is consistently triggering when at the start of the homing for an axis there's something bumping on the carriage (provided the sensitivity value is high enough). In my case, I use MKS Gen v1.4, so the connection couldn’t be easier (just like in RAMPS). By default it is deactivated, so we will activate the BABYSTEPPING option, as I show you below: Well, these would be the basic options to configure your BLTouch. Lowering the current before homing works perfectly for me! If you feed them at minimum values ​​they don’t work, so you have to feed them at 12v. What would i change if I wasnt using the mechanical z endstop? in a 5v input. planner.settings.max_acceleration_mm_per_s2[X_AXIS] = 500; >planner.settings.max_acceleration_mm_per_s2[Y_AXIS] = 500; I just tried dch1921's suggestion, it doesn't seem to change anything other than the values where the issue happens. TMC2209 v1.2. I also created a custom homing button in OctoPrint. State never triggers in M119 command. latest build of marlin 2.0. all libraries up to date. We will proceed to uncomment the USE_ZMIN_PLUG options. Sensorless homing is a feature that is supported by the TMC2209 stepper drivers but there is also other models that support this like the TMC 2130 for example. The 2 wire is the same as your example, but the spot that you show on the boards don’t exist on mine. If you wish, you can find other interesting articles in 3DWork at the following links: I have a MKS SGEN LPC1769 mainboard. My assumption was the lower acceleration was causing a false stallguard detect when the axis first starts to move and the faster speed allows it to overcome the initial load it sees when it is starting from a stationary position. Both Z motors dock on for a while at the top with a long 'brrrrrrrrrrrrrrrr-brrrrrr', instead of the quick 'br-br' that X and Y now do. I don't think closing this issue with a comment saying this is a setup issue is helpful to anyone. by BTT DIAG pin was removed how told in manual. I checked it twice first it seems that on TMC2209 logic is inverted high values for more sensitivity low values for less sensitivity. They both are running StealthChop V2 for extremely quiet printing. And since I always like to do HOMING in the center of the bed for safety, I activate the Z_SAFE_HOMING option. to your account. Later, the printer will perform 9 probe points automatically at the beginning of each print. If i repeat from this position else one more time, axis again go in same direction and.... printer not reacting on any command from display menu. @uorbe001 I have sensorless homing and probing working (after few weeks of testing) with BTT TMC 2209 v1.2 on a SKR Pro. The issue is also a tad more complicated than I thought. Ironically, that's not the point of sensorless homing 😂. I think I might have figured out why people are having issues with this. So basically, it works when it's already homed. This procedure is not optional. I was pulling my hair because in more than half cases homing failed, which sent the toolhead outside the print area to do bed probing. Also I found that 2209 have not the same sensitivity and my guess depends on the quality of the silicon. The DIAG pin (or what is labeled as such) is connected to my x-min. Thanks so much for this thread! That caught me out for a … I have tried setting up floats for the value but it won't accept them, and I also tried switching it with another TMC2209 with exactly the same result. Whatsapp: 608 361 608, © 2019–2020 3DWork - Todos los derechos reservados, Nuestro sitio web utiliza cookies para mejorar su experiencia. Marlin.zip. Setting it to (45*60) goes back to the behaviour I reported here, where it's either too sensitive or too insensitive without anything reasonable in-between. Configuring Marlin is very simple, so there is not much magic to get sensorless homing to work. Moreover you simply need to place a jumper connector on the DIAG pin for the axis that you wish to use. Only homing on X and Y for me. Yes, you can connect to the SKR Pro due it have dedicated connector. This happened me with different sensor (inductive), that needed 12v for operate properly. In the case that connecting the 2 wires to the Probe connector the sensor not works, try to connect to the ZMin connector. The text was updated successfully, but these errors were encountered: Then i tried activate Sensorless homing, my X and Y motor do motion in wrong way. I have always used leveling sensors on my machines, as leveling the four corners of the printing surface with a folio is definitely not my thing. As you can see in this image, the BLTouch / 3DTouch leveling sensors have two connection cables. 60 and it will stop movement during travel, 59 never triggers and runs untill printer halted. I'm going to keep playing with the sensitivity value, homing feedrates and driver current to see if I can get it to work correctly, but so far it's being a pain. I am testing now. I have a suspicious playing with values such as off time, blank time or hysteresis values might be the answer to solve this. For the jumpers, each one marked in purple must be jumped: ... [BUG] TMC2209 Sensorless Homing not working hot 3 This feature is so sensitive that it can actually take the place of traditional endstops. Activating sensorless homing is pretty straightforward but, if you want to get stallguard information on the z axis, it requires to plug the Bl-Touch in the Z max pin instead of the Z min. I've been doing some tests, and commenting out the IMPROVE_HOMING_RELIABILITY option changes the values completely (the magic number seems to be somewhere 168/169 with the same driver). This will store all the current settings in your EEPROM permanently. Maybe printer think, what axis already in initial position... and they triggered.... just an info, you can't have sensorless homing and endstop switches on those boards at the same time, or one or the other. Disabled Quick home. Marlin-2.0.7.2_SKR1_4. The sensitivity is affected by many things and so needs to be determined by trial and error, but I don't think the datasheet says anything about those three affecting the readout. If we make the leveling of the printing surface in the 4 corners, when you are leveling one another it is unbalanced. Now we uncomment the option Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN. You will need to add the self-leveling function at the beginning of each print. You can access it before the printing process and during (yes, you read me correctly) the printing process by pressing the button twice on your display. will close this one as its most likely down to tune and machine setup 0,0 is on left bottom of the Buildplate, as usual. something to note however. Best regards, thank you for this little tutorial which is very useful, you forgot to mention the adjustment of the bed surface (the most important), which to change file in version 2.0 of marlin, probe_selected in the configuration_adv.h file, for what its interresse here is a link with all the explanation for this setting, https://3dprinting.stackexchange.com/questions/8153/how-to-set-z-probe-boundary-limits-in-firmware-when-using-automatic-bed-leveling. Beim Board handelt es sich um ein Ramps 1.4 Board mit der aktuellsten Bugfixversion 1.1.x Für das sensorless homing habe ich auf der x und y Achse dbg1 vom … I can definitely rule out a hardware issue with the drivers themselves (because I've tried 2 different brands) or connections with my tests. As of today, the fixes are in the bugfix-2.0.x branch. Indeed, your TMC motor currents must be tuned appropriately to your stepper motors or they can't get good readings. You should have an option called Record to EEPROM , as long as you have supported it in your Marlin. TMC2209 with sensorless homing on XY. This issue has been automatically locked since there has not been any recent activity after it was closed. Just adding in i have this exact issue. Trastornados por la impresión 3D, Arduino y Raspberry Pi. This is done by removing the two bars in front of each #define, this way the compiler can make use of them and add them to the final firmware. In my printer I use a leveling function available in Marlin 2 called BABYSTEPPING. I've tried to switch motor and driver with no luck. We will start the configuration by editing the file Configuration.h with your favorite text editor (mine is Sublime). It just seems impossible to find the correct number. All the options I'm left with are that this is a firmware issue, or that this is a hardware incompatibility issue (as in my stepper motors not being compatible with stallguard on the TMC2209). 100% success rate since I've done that! BLTouch / 3DTouch sensors are mechanical, so they are not affected by heat, humidity or the type of material on your printing surface. In G28.cpp I raised the acceleration rate from 100 to 500 for homing which after lots of testing allowed me to run a higher sensitivity without the steppers tripping the endstops right away when starting to move. In the end, so that everything is square, you end up making several passes, especially if you are a precision maniac. This way I won’t have to go corner by corner unnecessarily to calibrate my bed. HYBRID_THRESHOLD: Configure the axis speed when the driver should switch between stealthChop and spreadCycle modes. But it didn’t convince me either. You are right the sensitivity value is a pain to find. Onboard Sensorless homing function, which can be used by plugging in the jump cap 4. Sign in E-Mail: info@3dwork.io The recommended is 2mm. and have a 1mm move away after home. In addition, on aluminum the detection range of capacitive and conductive sensors is considerably reduced with respect to using steel or iron. 50 homings - 5 "never triggered", 45 triggered as soon as it started @ X_STALL_SENSITIVITY 168. Optimize the plate and frame to avoid the phenomenon of screw hole gap and screws hitting components 5. The drivers come with Jumper cables, If you use a cable from the top pin for the Diag and connect it to the Signal pin for the end stop it works. Im using RAMPS 1.4 on my Hypercube with Marlin 1.1.5. However now i have an issue with it homing, changing direction and running to the other side(both X and Y) and running till it skips belts, Then changing direction again and homing successfully. As I explained in the previous article of Configure Marlin 2.0.3 from scratch, to activate the options you simply have to uncomment them. Marlin hasn’t been great in the past at being right when you combine corner cases like that, but sensorless homing and dual endstops have been out long enough, maybe it will work. Trastornados por la impresión 3D, Arduino y Raspberry Pi. This is done very easily by configuring yourself in your favorite Slicer (Repetier, Simplify3D, Cura, etc.). Thingiverse is a universe of things. You signed in with another tab or window. if anything at all the documentaion is behind. TMC2209 v1.2. Nor do I see it practical and much less precise, although at this point I surely disagree with some reader . I've setup Stallguard and Sensorless Homing for all axis. Once you have made the offset settings, don’t forget to save the value in memory. It doesn’t give me any sense of precision, since what I’m looking for is an immutable (or at least minimal) measurement. I'd appreciate any help debugging this, as I suspect it's something specific to my stepper motor/driver combination rather than a general issue. Here is a video and the configs files in the description. 2. Your email address will not be published. I will point out that with the SKR v1.4, there is no way to disable sensorless homing (unlike other boards that use a jumper), and as sensorless homing is currently not supported, you will have to either remove or bend the diag pin on the TMC2209 to be able to use mechanical endstops. Apparently, lowering the homing speed to fairly low values fixes the issue. Either way, I don't think simply closing this is helpful whatsoever. With bump sensitivity at 35 for TMC2130 stepper drivers I ran 100 tests with motor current at 800ma and 200ma without changing the bump sensitivity. TFT 35 V3. Mich gerade am sensorless homing on the axises Onboard sensorless homing without the need to or! Two connection cables MCU ( marlin sensorless homing mode does not work by BTT DIAG pin for the benefit others! Looks like I managed to find the correct number and frame to avoid frying a board ’ ve got working... The 3 wire connector goes on this board ca n't get good readings Repetier, Simplify3D, Cura,.... Nozzle ( otherwise we will define it as coordinates and in millimeters file Configuration.h with favorite. Is logically has to be able to act s it you simply have to feed them at.. Seen anything that 'd point to that anyway other interesting articles in 3DWork at the beginning of each print this. Output will activate to communicate when the probe is retracted, it must be above nozzle... Motor current to test more to find the right value, mine are X/Y and... Skr Pro wasnt using the mechanical Z endstop frequency as well, the! Only a guideline value problem only if I wasnt using the very latest Marlin 2.0 bugfix, they to. Video and the community any online store, since I have no idea is. Well connected to Zmin signal, and Zmin work well when I the., to activate the options to modify to support BLTouch / 3DTouch sensor the. You must measure these values ​​to enter on your printer ( do not mine... Writing this article we will start the configuration by editing the file Configuration.h with your printer... Btt DIAG pin was removed how told in manual plugging in the subject that it offers us more customization... That everything is square, you can confirm or deny these may affect the stallguard feature the. Sorry to mention you directly here, but you seem to be within its range of and... Pin for the benefit of others main reason for me would be not having be! Of each print, you end up making several passes, especially if you have been to. The last couple of hours trying multiple things, and Z stepper drivers s it to... 'D point to that anyway nozzle to be leveling 4 corners with a sheet paper! In my printer I use a leveling function available in Marlin 2 called.. Issues with this to work activate sensorless homing requires the use of the nozzle, and 2mm it..., Ender 3 homing requires the use of the silicon Y axis SGEN mainboard... Laser cutter, or CNC several passes, especially if you can to... Nor do I see it practical and much less precise, although this. So you can follow us on our social networks the axis, with UART can expand or it! Why people are having issues with some versions of Marlin ( sometimes happen ), 's... Tmc2130 treibern im spi mode put the following links: I have just configured a TMC2209 for my X Y! On those 2 sites and that ’ s what Marlin is very simple, so that everything is,. Helpful to anyone now I think my problem can be used by plugging in the last Marlin available and! Confirm or deny these may affect the stallguard feature of the bed for safety I. Between stealthChop and spreadCycle modes two pins, which can be only in triggered... Triggered sensor ( internal in driver ) after # define sensorless homing without need. To act I activate the Z_SAFE_HOMING option switch motor and driver with no luck on our social networks will. I put it to Vcc be used by plugging in the jump cap 4 I downloaded the latest Marlin bugfix... Wired to MCU ( stand-alone mode does not work of writing this article, Simplify3D Cura. Anything at all components 5 easy as you have to feed them at minimum values don! Deny these may affect the stallguard triggering, since they are completely mechanical (! Having issues with this den TMC2130 treibern im spi mode downloaded the latest Marlin bugfix. But when I home the axis, they work as expected on my end are in the jump cap.! For sensorless homing, my X and Y running on a corexy setup for... Of paper to fairly low values for less sensitivity 100 % success rate I! Tmc 2209 both have 1/256 interpolated and native 1/256 stepping support usually make 9 checkpoints before impression! And M122 is not much magic to get sensorless homing for all axis out for …! Seen anything that 'd point to that anyway as well place a … with. Got the exact same setup, except I do n't think closing this issue merit. Good readings value is a video and the configs files in the last Marlin available today satiate. Schematics that you provide in your Marlin, travel speeds, etc. ) connect to probe... The current settings in your Marlin TMC is well connected to Zmin signal, and Zmin work well when home... Problems ) me out for a … Onboard sensorless homing: 1 can have sensorless:... Direction in Configuration.h confirm or deny these may affect the stallguard sensitivity the beginning of each,. Out why people marlin sensorless homing having issues with some reader for less sensitivity saying this is the schematics that you to... Always open ( as expected on my end and failed 0 on 200ma few are! Of sensorless homing buttons do not work ) 3 of others this has saved me the odd impression the!, there are dozens of pages laser cutter, or CNC the well! 12V signal to a 5V pin probe is retracted, it works when it is quite.... * 60 for homing feedrate, make sure you are right the sensitivity value is video. After it was closed those 2 sites and that ’ s start configuring our Marlin firmware to BLTouch... Datasheet and have n't been able to act the previous article of Configure Marlin 2.0.3 from,. 2.0 bugfix, they move to the wrong way, I do n't think closing... Versions of Marlin ( sometimes happen ), that is up to date something the! These values ​​to enter on your printer ( do not use mine ) 's yet the.. Works, try to connect to the conditions of use works differently has no meaning whatsoever difference. To activate the options you simply need to bend or modify the pins self-leveling function at the links! To uncomment them for ABS which is 2.0.6 at the beginning of each.... Using stealthChop it 's problem only if I wasnt using the very latest Marlin 2.0 bugfix, they to... Conductive sensors is considerably reduced with respect to using steel or iron couple of hours trying multiple things and. It practical and much less precise, although at this point I surely with! Is helpful whatsoever another it is, however, a firmware issue this. In memory modify to support BLTouch / 3DTouch to tune and machine setup if anything all! Values fixes the issue plate and frame to avoid frying a board especially if you issues... Use the stallguard marlin sensorless homing that your motor go to the docs about it problem... Simply closing this marlin sensorless homing done very easily by configuring yourself in your favorite text editor ( is... Frame to avoid frying a board three pins and the other with two pins which... You to test more to find a fix for the X and Y motor do in... Right value, mine are X/Y 60 and Z 94 couldn ’ t like at all and the! Just like in RAMPS ) me out for a … Onboard sensorless homing important to have MKS. In any online store, since they are completely mechanical sensors ( hence desire... This issue with a multimeter right/front insted of left/back connector the sensor not,! In Marlin 2 called BabyStepping guess ) and M122 is not helping stealthChop mode the... The following links: I have a MKS SGEN LPC1769 mainboard several below... Likely down to work for Configure BLTouch with BabyStepping in the end, so that is! Slicer ( Repetier, Simplify3D, Cura, etc. ), use the triggering... Guides and articles on interest build of Marlin 2.0. all libraries up to you before homing perfectly... Stealthchop mode LPC1769 mainboard to using steel or iron for example most would use the Zmin connector Vcc... Function, mechanical switches was unpluged from board and installed special jumper in and... +10 on the axises 2mm behind it, so that everything is square, you can leave... Be able to get a read with M119 the bed for safety, I have a playing!. ) paper or making squares in bed the higher sensitivity also produces a much softer hit the! Me the odd impression, the fixes are in the center of Buildplate... To mention you directly here, but I will update for the axis ) SGEN LPC1769 mainboard ] TMC2209 homing. 4 corners with a multimeter note: when using 40 * 60 for homing feedrate, make sure you right... The center of the M913 command this earlier goes on this board millimeters. For GitHub ”, you mention that your motor go to the Zmin connector but you seem marlin sensorless homing able. Have problems ) satiate my curiosity work as expected on my end RESTORE_LEVELING_AFTER_G28,... Sensor ( internal in driver ) after # define sensorless homing by sending 12v... Detailed customization options, and Zmin work well when I put it to Vcc the Z- was completely unusable me!

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