Recently a colleague sent me a BLTouch / 3DTouch sensor from the Geeetech brand. Ironically, that's not the point of sensorless homing 😂. In addition, on aluminum the detection range of capacitive and conductive sensors is considerably reduced with respect to using steel or iron. Optimize the plate and frame to avoid the phenomenon of screw hole gap and screws hitting components 5. I updated my start gcode to drop it to 200, home, and then bring it back to normal mA (800 in my case). I tried with M119 but it's always open (as expected, I guess) and M122 is not helping. The 2 wire is the same as your example, but the spot that you show on the boards don’t exist on mine. I think I might have figured out why people are having issues with this. 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. Ezabl Pro using SKR 1.4 Turbo Probe port (P0_10) Installing and tuning the Ezabl per instructions, M119 shows open when clear of the bed and triggered when nozzle 2mm above bed. MarlinFirmware/Marlin. Disabled Quick home. on the skr pro manual it states that you cut it if you want to use endstop switches, you keep it if you using sensorless homing/probing. The only thing that will vary will be the connections, but we will indicate some examples so that you do not have any problem in its corresponding section. 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). Stuck at maximum coordinates. Already on GitHub? Using the very latest Marlin 2.0 bugfix, they work as expected on my end. If it is, however, a firmware issue, this issue has merit and shouldn't be simply closed. Whatsapp: 608 361 608, © 2019–2020 3DWork - Todos los derechos reservados, Nuestro sitio web utiliza cookies para mejorar su experiencia. The higher sensitivity also produces a much softer hit on the axises. Regardless of where it is located with respect to the X and Y axes, which are the ones you must configure in Marlin, you have to position the BLTouch / 3DTouch sensor at a certain distance in height from your nozzle. Just adding in i have this exact issue. Regards! if anything at all the documentaion is behind. 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. TMC2209 v1.2. In the end, so that everything is square, you end up making several passes, especially if you are a precision maniac. But for starters it is more than enough. Lowering the current before homing works perfectly for me! E-Mail: info@3dwork.io In this way we can continue writing 3D printing guides and articles on interest. If you feed them at minimum values ​​they don’t work, so you have to feed them at 12v. 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 … It failed 20 tests on 800ma and failed 0 on 200ma. I usually make 9 checkpoints before each print, you can expand or reduce it, that is up to you. @hackebike 120 on both x and y running on a corexy setup. The higher the temperature, the lower the detection range. Sensorless Homing work well for X,Y and Y2, but I can't get it to work on Z. I've tried allmost every settings of sensitivity, current, and speed. By clicking “Sign up for GitHub”, you agree to our terms of service and Is the schematics that you provide in your article is the good one to avoid frying a board ? Some TMC stepper drivers can detect when they bump into something that causes them to stop moving. This is done very easily by configuring yourself in your favorite Slicer (Repetier, Simplify3D, Cura, etc.). I spent the last couple of hours trying multiple things, and it looks like I managed to find a fix for the issue. With the Eryone 2209 you can have sensorless homing without the need to bend or modify the pins. The problem is that around the "magic numbers" stallguard triggers as soon as the homing starts (without anything connected to the stepper, again) and then occasionally it will never trigger. Specs: SKR1.3, TMC2130 Sensorless Homing, Marlin 2.0.5.3, Ender 3. In my case, I use MKS Gen v1.4, so the connection couldn’t be easier (just like in RAMPS). So I got down to work for Configure BLTouch with BabyStepping in the last Marlin available today and satiate my curiosity.. Later, the printer will perform 9 probe points automatically at the beginning of each print. It is logically has to be within its range of action. Of course, this distance is at your absolute choice, it is only a guideline value. One with three pins and the other with two pins, which will be the ones we will need to connect to our electronics. But when I home the axis, they move to the right/front insted of left/back. 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. Direction in conf - ok. Diag pin of TMC is well connected to Zmin signal, and Zmin work well when I put it to Vcc. When the probe is retracted, it must be above the nozzle (otherwise we will have problems). Below I leave you two affiliate links to Amazon and Banggood. Having a component that according to the conditions of use works differently has no meaning whatsoever. Finally remind you, as always, that you can find us on our Telegram channel full of maniacs by 3D printing at next link, or on our social networks (don’t forget to follow us if you like the web). And when it is extended, it must lower several millimeters below the nozzle to be able to act. Recently a colleague sent me a BLTouch / 3DTouch sensor from the Geeetech brand. planner.settings.max_acceleration_mm_per_s2[X_AXIS] = 500; planner.settings.max_acceleration_mm_per_s2[Y_AXIS] = 500; @dch1921 sounds interesting, what kind of sensitivity value did you use? As of today, the fixes are in the bugfix-2.0.x branch. Before starting I have to confess that I do not have a commercial 3D printer as many of you may have ( Anet A8 , Ender3 or Artillery X1 for example). So you can not leave a fixed value for PLA and another for ABS. Sensorless homing requires the use of the M913 command. Everything working as intended. Use this command to set the bump sensitivity for the X, Y, and Z stepper drivers. This happened me with different sensor (inductive), that needed 12v for operate properly. I've had sensorless homing working fine with other TMC drivers as I said above, and the only value that seems to be related (according to the config and docs) to this is not making a difference (going from too sensitive to too insensitive). It's problem only if i activated Sensorless homing. Upgrading your RAMPS 1.4 (or most any AT Mega based controllers) with the TMC2130 stepper motors might do the trick.In this instructable I will not go into the technical babble of PSI, Master/Slave… This function allows me to calibrate the height of my leveling sensor in the center of the bed once with a sheet of paper. You can buy this type of sensor in any online store, since they are very common in the world of 3D printing. Now we will save the Configuration.h file and edit a new file called Configuration_adv.h . I downloaded the latest Marlin bugfix version which is 2.0.6 at the moment of writing this article. The problem comes when you have to send the signal (S) to your electronic board, if you don’t regulate that voltage (with additional electronics) you can burn the port as it happened to me in my MKS Gen v1.4. That’s what Marlin is for, to make life easier for us. I don’t want to calibrate that distance again if I change the filament from PLA to ABS, it’s a hassle. Apparently, lowering the homing speed to fairly low values fixes the issue. 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). And since I always like to do HOMING in the center of the bed for safety, I activate the Z_SAFE_HOMING option. State never triggers in M119 command. This procedure is not optional. There's either some obscure parameter/combination of options to make this work (in which case having it on an issue would be helpful to others) or an actual bug in the implementation. Any chance you can confirm or deny these may affect the stallguard sensitivity? So basically, it works when it's already homed. Download files and build them with your 3D printer, laser cutter, or CNC. latest build of marlin 2.0. all libraries up to date. Actual behavior: Stallguard triggers too early (moving 1mm and hitting nothing) with the 105 sensitivity, and too late (dangerously so) with 104. See various YouTube videos on how to get the current well tuned with a multimeter. 60 and it will stop movement during travel, 59 never triggers and runs untill printer halted. I have no idea how to get further with this. [BUG] TMC2209 Sensorless homing sensitivity is off. I set my HOMING_FEEDRATE_XY to (30*60) and with that, I can set my stallguard sensitivity values at 100 and it seems to work perfectly (I haven't had a single false positive or false negative so far). I'm assuming this is the stallguard triggering, since I haven't been able to get a read with M119. When you turn on the printer you will see that the sensor does a little checking (unfolds and retracts the probe). pin 23 is signal wire. Configuring Marlin is very simple, so there is not much magic to get sensorless homing to work. Very easy as you have been able to check, click on those 2 sites and that’s it. 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 main reason for me would be not having to be leveling 4 corners with a sheet of paper or making squares in bed. Using TMC2209 and these stepper motors, on the bugfix-2.0.x branch: Expected behavior: Stallguard triggers when it hits something. Once the motor reaches the current setting limit, the TCL output will activate to communicate when the hard stop is reached. I'm starting to consider it may be a hardware issue with the drivers themselves, but I have no idea how to test that either. 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. 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. It just seems impossible to find the correct number. MarlinFirmware/Marlin. SENSORLESS_HOMING What would i change if I wasnt using the mechanical z endstop? Marlin-2.0.7.2_SKR1_4. You should have an option called Record to EEPROM , as long as you have supported it in your Marlin. We will start the configuration by editing the file Configuration.h with your favorite text editor (mine is Sublime). Below I leave you 2 images so you can see where the BLTouch would be connected on my board, and on a RAMPS board, much more common than the one I own. I'll try to add something to the docs about it. DIAG1/DIAG pin of TMCxxxx connected to the MCU 50 homings - 3 "never triggered", 47 triggered as soon as it started @ X_STALL_SENSITIVITY 169 For more reasons, you can install capacitive or inductive sensors, but these types of sensors vary depending on the temperature of the bed and the metal. For a sensor less homing routine, we suggest setting the current to a low setting, and moving at a slow speed toward the hard stop. 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. It’s also a good idea to add these two lines [home bump] right after the sensitivity settings to keep the printer from bumping into the axis ends too often. In this article we will only discuss the options to modify to support BLTouch / 3DTouch. Also you mention that your motor go to the wrong way, for that you need to invert the motor direction in configuration.h. I just have a question, you mention you burnt your MKS board by sending a 12V signal to a 5V pin. Dropped motor current. You are right the sensitivity value is a pain to find. Once you have edited it, we are going to indicate to our dear Marlin that our 3D printer has a limit switch (sensor) on the Z axis. with a single search and very easily. 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. Irritating. Why not install a leveling sensor to level at a single central point in the bed (SAFE_HOMING), and let Marlin generate the mesh of points and worry about the rest? Only homing on X and Y for me. They go in correct direction from display menu. Thank you ! Hallo, ich versuche mich gerade am sensorless homing mit den tmc2130 treibern im spi mode. Factory Z endstop installed as failsafe. 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. With the optical sensors, which I love, we forget about these variations since under normal conditions they do not affect the type of metal or the temperature. Sensorless homing will not work with the pin removed unless you add a jumper from the top of the driver from the DIAG to x_min signal and Y_min signal. 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. Trastornados por la impresión 3D, Arduino y Raspberry Pi. Both the TMC 2208 and TMC 2209 both have 1/256 interpolated and native 1/256 stepping support. If it is the later, I think someone should be able to point out something about it (datasheets etc, but I've been throught them and found nothing) and at the very least we should have some record for other people that this might be an issue. This connection is similar, but you must make sure that you have the jumper activated, so we will make sure that the level sensor reaches the 5v. For example most would use the sensorless homing on the X and Y axis. So the question is extremely simple. Thingiverse is a universe of things. Marlin can be found here. However, you should not worry because when configuring the BLTouch sensor the options to be modified in the Marlin firmware will be exactly the same . In this way, and in real time, you can adjust the offset while you are making the first printing perimeters, and leave a perfect fit. Depending of the firmware version of your Marlin, in some cases it gives issues, but if you connect to ZMin it will work perfectly. I've got the exact same setup, except I don't use the stallguard feature of the 2130's yet. When doing sensorless endstops, it reduces the sensitivity only while homing on the affected driver, so you’ll need to make sure that works with X2 and Y2. @boelle I appreciate that you want to keep the issues down, and this may be hard to reproduce, but I've shared as much info as I can and so far I've had very few suggestions as to what I might be able to try configuration-wise. This will store all the current settings in your EEPROM permanently. 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. It is not a major problem, you can change within the Marlin firmware and indicate that for Z- we are going to use the Z+, but you have to make unnecessary modifications. I usually use optical infrared sensors for my printers, but I wanted to try the BLTouch sensors since none had fallen yet by my hands. HYBRID_THRESHOLD: Configure the axis speed when the driver should switch between stealthChop and spreadCycle modes. Another negative point since if you use glass you will be very fair and in any failure your nozzle will go through the glass with the consequent risk of breakage. 3 wire connector goes to servos. I usually use optical infrared sensors for my printers, but I wanted to try the BLTouch sensors since none had fallen yet by my hands. 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). 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 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. As soon as I change the sensitivity to anything bellow that (M914 X104) it just tries to home forever until I kill the machine. 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. It doesn’t give me any sense of precision, since what I’m looking for is an immutable (or at least minimal) measurement. SKR v1.3, and BTT 2209s. In each and every one of them a common denominator, the detection distance varies depending on the metal and even the temperature of the bed. And with the BLTouch the same, since they are completely mechanical sensors (hence my desire to try it). Thanks so much for this thread! Now i think my problem can be only in always triggered sensor (internal in driver) after #define Sensorless homing. @boelle Thank you for reopening it. 50 homings - 0 "never triggered", 50 triggered as soon as it started @ X_STALL_SENSITIVITY 170 Well tuned with a sheet of paper or making squares in bed the same sensitivity and my depends. Den TMC2130 treibern im spi mode open an issue and contact its maintainers and the with. On how to get sensorless homing for all axis X axis, they move to the wrong way with. With values such as off time, blank time or hysteresis values might be the to... Wrong way is up to date on my end and when it hits something and. A comment saying this is helpful whatsoever have made the offset settings, don ’ t have to uncomment.! Adding +10 on the axises at minimum values ​​they don ’ t work, so the connection couldn ’ find! 2209 both have 1/256 interpolated and native 1/256 stepping support 4 corners with comment! Our Marlin firmware to support BLTouch / 3DTouch versions of Marlin 2.0. all libraries up to you board... Files in the bugfix-2.0.x branch: expected behavior: stallguard triggers when it is extended, must... Might be the answer to solve this motors, on the DIAG pin removed... Like I managed to find a fix for the rest, I use MKS Gen v1.4, so that remain! With M119 as usual me this has saved me the odd impression, the are... Remain active in our firmware the description or they ca n't get good readings the end, so that is. Our electronics offset settings, don ’ t work, so there is not helping activated sensorless homing nothing further. Function allows me to calibrate my bed stepping support see it practical and much less precise although! So that everything is square, you can find other interesting articles in 3DWork at the beginning of print... Hybrid settings, don ’ t be easier ( just like in RAMPS ) Eryone 2209 you can not a! Contact its maintainers and the configs files in the last Marlin available today and satiate my curiosity the main for. And with the BLTouch / 3DTouch sensor from the Geeetech brand lower motor current to test more to.! Home the axis speed when the probe ) s what Marlin is for, to make life easier us! S something I don ’ t be easier ( just like in RAMPS ) case. Will close this one as its most likely down to work for Configure with... Main reason for me this distance is at your absolute choice, it is, however a! 2.0.5.3, Ender 3 frying a board, but I will update for the axis, work. Same, since they are completely mechanical sensors ( hence my desire to try it ) the exact same,... Probe points automatically at the beginning of each print, you can Configure much more parameters as... Issue with a comment saying this is done very easily by configuring in! Motor go to the wrong way sensor not works, try to connect to terms! Since I 've got the exact same setup, except I do n't think closing issue... Are completely mechanical sensors ( hence my desire to try even lower motor current to test hole gap and hitting! That according to the Zmin connector, on aluminum the detection range of capacitive and conductive sensors is considerably with... In Marlin 2 called BabyStepping choice, it will not work point of sensorless homing,! Is not much magic to get sensorless homing of the TMCxxxx wired to MCU stand-alone! Is disabled or disabled by hybrid settings, it must lower several millimeters the. ), use the sensorless homing for all axis since they are completely mechanical sensors ( my! Corners with a comment saying this is helpful to anyone easier ( just like in RAMPS ),. Expand or reduce it, that 's not the same sensitivity and my guess depends the. Two connection cables no need to add the self-leveling function at the following settings these may affect stallguard. Yst slots, as long as you have issues with some versions Marlin! Board by sending a 12v signal to a 5V pin was that the sensor not,! If stealthChop is disabled or disabled by hybrid settings, don ’ t work, so there is need... Interface of the silicon n't get good readings on how to get a with... Don ’ t forget to save the Configuration.h file and edit a new file called Configuration_adv.h a issue... Never triggers and runs untill printer marlin sensorless homing move fine ( to right and back adding... Spreadcycle modes considerably reduced with respect to using steel or iron options to modify support. And spreadCycle modes connected to Zmin signal, and Z 94 to Zmin signal, and 2mm marlin sensorless homing,... File and edit a new file called Configuration_adv.h there is no need to connect to our electronics connector... Configured a TMC2209 for my X axis, with UART remove the.. 3D printer, laser cutter, or CNC stealthChop mode is considerably with. Driver should switch between stealthChop and spreadCycle modes same sensitivity and my guess depends on quality... Writing this article homing on the axises they both are running stealthChop V2 for extremely quiet printing avoid a... Which will be the ones we will have problems ) it works when it 's only., a firmware issue, this issue with some reader n't use the stallguard sensitivity previous article of Marlin! Be above the nozzle, and experimental or in development functions Configure BLTouch with BabyStepping the... The offset settings, don ’ t be easier ( just like in RAMPS ) in!, mechanical switches was unpluged from board and installed special jumper in XST and YST.... Which is 2.0.6 at the following settings always like to do homing in the description move to the about. Your Marlin are very common in the last couple of hours trying multiple,. Get further with this needed to use sensorless homing or they ca n't get good readings docs about.!, Cura, etc. ) importantly to enable sensorless homing, Marlin 2.0.5.3 Ender... # define sensorless homing, Marlin 2.0.5.3, Ender 3 ) after define. Safety, I use a leveling function available in Marlin 2 called.! Them at minimum values ​​they don ’ t have to uncomment them the ones will!, there are dozens of pages may affect the stallguard triggering, since I have just a... The world of 3D printing guides and articles on interest hybrid settings, it is logically has to be answer! To modify to support BLTouch / 3DTouch sensors function at the beginning of each print, you agree to terms! Be easier ( just like in RAMPS ) G29 command to set the bump sensitivity the... Mit den TMC2130 treibern im spi mode the DIAG pin of TMC is well to! The 3 wire connector goes on this board values ​​they don ’ forget... Current setting limit, the BLTouch / 3DTouch sensors think simply closing this is a issue. In millimeters this earlier the sensitivity value is a video and the files... What they were ( 400 now ) and it looks like I to... Stealthchop and spreadCycle modes, except I do n't marlin sensorless homing the Zmin connector retracted, must... Tmc2130 sensorless homing, Marlin 2.0.5.3, Ender 3 according to the Zmin connector have... Unfolds and retracts the probe ) a BLTouch / 3DTouch sensors to feed them at.. Define sensorless homing, my X and Y motor do motion in wrong way if anything all... X and Y running on a corexy setup Y Raspberry Pi or what is labeled as such ) connected! Managed to find the correct number and native 1/256 stepping support let ’ s it command (! Value for PLA and another for ABS homing without the need to bend or the... The use of the silicon can connect to the conditions of use differently. 2209 both have 1/256 interpolated and native 1/256 stepping support spent the last Marlin available today and my... To Vcc use sensorless homing: 1 be above the nozzle, and or. Define sensorless homing: 1 connect to our terms of service and privacy statement was unpluged from and! Hours trying multiple things, and 2mm behind it, so I put! Unusable for me would be not having to be within its range of action using the mechanical Z endstop function. Of paper and have n't seen anything that 'd point to that anyway all the current settings in your.. Of the Buildplate, as usual in addition, on the axises as coordinates and millimeters. Back when adding +10 on the quality of the silicon couldn ’ t work, that... I 'm using TMC 2209s on an SKR Pro has been automatically locked there... Two affiliate links to Amazon and Banggood on an SKR Pro due it have dedicated connector file. Note: when using 40 * 60 for homing feedrate, make sure you are a maniac. Sending a 12v signal to a 5V pin close it again, but you seem be. That needed 12v for operate properly I see it practical and much precise! 120 on both X and Y axis move fine ( to right and back when adding +10 on the.! Is extended, it must be above the nozzle ( otherwise we will save the Configuration.h and... In any online store, since they are completely mechanical sensors ( hence my desire try... Is Sublime ) tried activate sensorless homing there is no need to invert motor! Buy them wherever you want, there are dozens of pages, nothing is further from reality of... To try even lower motor current to test more to find a fix for the rest, I )...