Marlin pid autotune

Feb 5, 2016 · Autotune PID is a feature that is included in Marlin and most branches of it to help determine the best settings for the hot-end temp control. ... Info:PID Autotune finished ! Place the Kp, Ki and ...

Guides seems to either not say anything about the firmware, or specify that they are writing a guide for some specific marlin version. ... PID Autotune with 8 cycles, temp 210 M500 ;Save results to EEPROM. And, yes, for most printers out there the standard guides work just fine since most printers run Marlin firmware (albeit different versions ...Are there good reasons why you shouldn't buy a hybrid? Actually, yes. HowStuffWorks looks at five of the most obvious and breaks them all down. Advertisement Yeah, you read that ti...(Be sure to do a PID autotune for your heated bed after you enabled it in your firmware, otherwise it will trigger Thermal Runaway Protection when heating up the bed. You can find the guide under the PID autotune section, later in this post) C EXTRUDE_MAXLENGTH 200 (Or measure the length from the extruder gear to the nozzle through the PTFE tube)Are you considering a WordPress site but don't know how much a WordPress website costs? Here's everything you should include in your site budget. Trusted by business builders world...Marlin Edwards passed away in Missoula, Montana. The obituary was featured in Missoulian on April 18, 2024. 2. Working on upgrading my Ender 3 to a dual extruder setup using the Winsinn dual hot end and MKS Base V1.6 motherboard using Marlin FW 2.0.5 and am unable to get the PID autotune to work. When I start the autotune, the temperature spikes pretty quickly and quickly fails, either heating to 60 °C or 200 °C ( M303 C5 E0 S60) for either hot end ... Hotend PID Tuning - Bad heater id. Hey, I Tried to pid tune my ender 3 v2 hotend after new fan ducts, with M303 E0 S220 C5 command but i am getting: PID Autotune failed! Bad heater id. Im using professional firmware on ender 3 v2. Command looks fine to me. This should run autotune for extruder 1 (E0) at 220°C for a total of 5 iterations. PID-controller/brewing kettle simulation. Contribute to hirschmann/pid-autotune development by creating an account on GitHub.

Re: PID autotune failed! Bad extruder number. March 12, 2019 07:55PM. Registered: 5 years ago. Posts: 2. I finally got it to work, you have to heat your bed withing 10 degrees of your target temperature then run the pid autotune, then it will work, as long as you have the pid autotune enabled in your marlin code and that other option below it ...Step 2: Try a PID Autotune. To run a PID Autotune, just start by sending this for your first hotend to enforce a 3-cycle PID tuning for the 200 °C region: M303 C3 S200. For your second hotend, you'd send M303 C3 E1 S200 - the E-value is 0-indexed and defaults to 0 for the first hotend, so E1 is the second hotend.This command instructs the printer to perform the PID auto-tune for extruder 0 (the first extruder) at a temperature of 220 degrees Celsius. The auto-tuning process will cycle through three times. Step 6: Setting the new PID values After the PID auto-tune process is complete, the new PID values will be displayed in the terminal section.OctoPrint-Pidtune. Graphical UI for using the Marlin built in PID autotune function. After autotuning sequence is completed you can modify parameters manually and the hit "Apply" to make new parameters active and "Save" to save to …Since I'm getting ready to update my firmware to the latest Marlin version, I wanted to go ahead and do another PID autotune on the hotend so that I can get a better performance. I'm running a 24V power supply and printing ABS. Using default PID settings work, but the hotend overshoots the 255 degree temperature upon initial heat-up to …: Get the latest Spaceandpeople stock price and detailed information including news, historical charts and realtime prices. Indices Commodities Currencies StocksHi @kgolger, Marlin PID autotune results were worse than the manual setting, so we redesigned whole temperature control.Therefore Marlin PID autotune is not supported by fw at all. If you have encountered any possibility of improvements, we would like to examine them, thank you.

Learn how to use the PID tuning G-codes M303, M304, and M301 in Marlin to optimize your 3D printer's hotend and heated bed. Find out the parameters, syntaxes, and examples of each G-code and how to save the PID values to the printer's memory.Marlin firmware has an autotuning algorithm, so you could either upload marlin to your board, or hook up a dummy board with marlin on it -> autotune -> get PID vals, and then apply them to the code that you're writing (although be careful for unaccounted problems between the two boards -operating voltage differences, etc.)Here is a great place to post upgrades, tips, tricks and ask for help for all Anet 3D printers. A great group of people is ready to help you get the answers to your problems with this line of cheap printers.Your 3D printer is a precision machine and needs to be finely tuned to get the best results. PID tuning in 3D printing can be an essential part of ensuring a quality print and maximizing the potential of your machine.. This article is a compact guide to PID tuning your printer using the two most popular firmware, Marlin and Klipper. Both Marlin and …In this video you will learn how to autotune pid in 3d printerWhat is PID?Proportional Integral DerivativeA PID Controller in a temprature control system wil...

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Okay, so after a few months I am back on this problem. Here is my current Marlin setup concerning the PID-values and ranges.-You can see that i significantly reduced the PID_MAX and BANG_MAX to one fourth of its original value (255) and even that seems to be too much still.-Also changed PID_FUNCTIONAL_RANGE. This is what made the …This will start the PID auto-tune function in the Marlin Firmware. The hot end will cycle the heat up and down for a couple of minutes until displaying the message: "PID Autotune Complete." ... Important: With versions of Marlin prior to 2.0.6, the PID values that are set will be used for both extruders. In other words, you can not tune each ...When I Try to Give the PID AUTOTUNE for the bed this is the result: SENT: M303 E-1 S60 C10 RECEIVED: PID Autotune failed! Bad extruder number RECEIVED: ok ... as long as you have the pid autotune enabled in your marlin code and that other option below it commented out you are good to go, try that and let me know if it worked for you, …Reporting Bugs. Please submit bug reports to the [Marlin Issue Queue] so that we can try to resolve them. Use the [New Issue] button and follow the guidelines below. Before submitting an issue, please search first to make sure the issue is new. You can always add comments to an existing issue, even if it is closed, then we can re-open and ...Autotune PID is a feature that is included in Marlin and most branches of it to help determine the best settings for the hot-end temp control. ... Info:PID Autotune finished ! Place the Kp, Ki and ...

I am getting "PID Autotune failed temperature too high". I have a CR-10S Pro V2 with a Hemera and Volcano Hotend with Marlin Firmware. I am getting 19ohms of resistance on the 30W E3D heater, so it's the correct 24V heater. TEMP_SENSOR is set to "5" correctly for the E3D 100K 104GT-2 Thermistor. I can set the bed and heater temperature on the ...Sliced for Marlin firmware, although in most cases will still be compatible with other firmwares. A build volume of 120 x 120 x 250 mm (This site can accommodate anything as small as this and anything larger) ... PID Autotune Aim: To ensure the heating of the 3D printer nozzle and bed are safe, stable and consistent. When required:Marlin PID Autotune . I have a Sovol SV01 that I upgraded with a E3D V6 All Metal Hotend and Custom Extruder Fan shroud. I tried the builtin PID autotune because I was getting temp swings on the extruder. It didn't help. The PID values didn't change the behavior. I manually adjusted the D value about -10 assuming that it has something to do ...M111 S38 ; LEVELING, ERRORS, INFO. Enable dry-run mode. M111 S8. Enable everything except dry-run mode. M111 S247 ; 255 - 8. Disable previously set extra debugging output. M111 S0. Marlin has several debug bits that can be set, in combination, to help configure, troubleshoot, and debug the firmware. Add up the debug bits you need:Hotend PID Tuning - Bad heater id. Hey, I Tried to pid tune my ender 3 v2 hotend after new fan ducts, with M303 E0 S220 C5 command but i am getting: PID Autotune failed! Bad heater id. Im using professional firmware on ender 3 v2. Command looks fine to me. This should run autotune for extruder 1 (E0) at 220°C for a total of 5 iterations.Marlin PID Autotune . I have a Sovol SV01 that I upgraded with a E3D V6 All Metal Hotend and Custom Extruder Fan shroud. I tried the builtin PID autotune because I was getting temp swings on the extruder. It didn't help. The PID values didn't change the behavior. I manually adjusted the D value about -10 assuming that it has something to do ...I wired everything up and tried to PID tune the hot end, but I got a problem. When the tuning ends and I use the values with M301, the values are too agressive and the hot end initially overshoots more than 15 °C. After that the temperature is rock steady. The tuned values are P=9.4 I=0.47 and D=46.4. I tried to change the values according the ...MMcLure. Re: PID autotune for the bed. July 29, 2019 01:49PM. Registered: 6 years ago. Posts: 265. There have been some recent changes in the latest Marlin (bugfix-2.0.x) that should greatly improve PID performance, specially for the bed. You might want to try the latest bugfix-2.0.x sources. Reply Quote.Mar 29, 2020 · M303. Heated bed. M303 C15 E-1 S60 U. Hotend/Bed PID Tune examples. When you initiate the M303 G-code commands the PID autotune process will start. The temperature will start to increase to the target temperature and fluctuate around that for the given number of cycles. The operation will be complete once the temperature begins to drop. Description. Set a new target hot end temperature and continue without waiting. The firmware will continue to try to reach and hold the temperature in the background. Use M109 to wait for the hot end to reach the target temperature.

PID Autotune Aim: To ensure the heating of the 3D printer nozzle and bed are safe, stable and consistent. When required: Any time the hot end is changed, including adding/removing a silicone sock or altering part cooling fan/ducts. Any time the bed is changed, such as adding a glass/mirror plate, magnetic spring steel sheet and/or under bed ...

Marlin uses PID (Proportional, Integral, Derivative) control to stabilize the dynamic heating system for the hotends and bed. When PID values are set correctly, heaters reach their target temperatures faster, maintain temperature better, and experience less wear over time. I just stumbled upon some code in the Marlin 2.x firmware today (whilst trying to add a silly picture as a boot screen) which adds a menu for auto PID-tuning in the Advanced Configuration menu via the LCD. You set the testing temperature, and off it goes hitting the temperature several times before cooling down again, and inputting updated PID ...Marlin 3D Printer Tool. Marlin3dPrinterTool is a open-source software that helps you configure and test your 3D printer. open menu mobile menu toggle button. Search. About; ... PID autotune for both Bed and extruder. Manual update of Firmware. Period WordPress Theme by Compete Themes.However, 1.1.9 will be the last major Marlin 1.x.x release, so all users will be required to update to Marlin 2.0 for new features after that. thinkyhead pushed a commit that referenced this issue on Sep 22, 2018. Fix for issue #9005, #8942 - Bed PID autotuning ( #9037) 1d84253. Hi, after the latest changes on the M303 GCODE there is a problem with the PID Autotune of the bed. It seems to use the E0 temperature/heater instead of E-1. Steps to Reproduce. Do a M303 E-1 S60 C6; Watch the temperature of Bed and Hotend; The autotune of the bed will fails; Or. Set the temperature of hotend to 200°C; Do a M303 E-1 S60 C6 최적의 PID 값을 지정한 사이클 만큼 반복하면서 자동으로 찾도록 Gcode를 작성하고 EEPROM에 저장을 하는 것이다. 1. Hotend PID Autotune. Prontface를 실행하여 commend 창에 적어준다. 존재하지 않는 이미지입니다. ; 노즐온도를 200도씨 까지 8번 반복한다. 존재하지 않는 ... I am curious about PID settings in marlin. Should there be different PID for both extruders because there are two hotends. I checked PID autotune in repetier with command: M303 E0 S200 C5, it shows me (Kp: 44.40 Ki: 4.43 Kd: 111.31) values. Then just for curiosity, i give following command for 2nd extruder: M303 E1 S200 C5, but it came ...

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Learn how to use the PID tuning G-codes M303, M304, and M301 in Marlin to optimize your 3D printer's hotend and heated bed. Find out the parameters, syntaxes, and examples of each G-code and how to save the PID values to the printer's memory.Set the hotend PID autotune to 205C and 10 cycles, then run the autotune. You will see different values after the autotune. Set the bed PID autotune to 60C and 5 cycles, then run the autotune. You will see different values after it runs. Make sure to go back 1 menu and choose "Store Settings" to store the new PID values. Print something!INDIANAPOLIS, May 6, 2021 /PRNewswire/ -- Sanctuary Wealth, home to the next generation of elite advisors, welcomes to its dynamically expanding n... INDIANAPOLIS, May 6, 2021 /PRN...This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs. PID auto-tuning in to the "Advanced Settings" menu does not save new data to EEPROM. That is, after performing PID auto-tuning, you see the new PID values, but after restarting the printer, the ...Marlin PID Autotuning für 3D-Drucker. Veröffentlicht von IdleBit am 2. Februar 2017. Die Marlin Firmware hat paar echt nette Features am Board, unter anderem das „PID Autotuning“. Es sind zwar …Scroll down to PID Autotune Bed for bed, or PID Autotune E1 for Hot End; Suppose I select the bed. Turn the wheel right or left to set the value. Note that for PEI beds, for PLA, the recommended bed temp is 70 - so I PID tune to 70. Other temperatures would work, but I figure it's best to tune using the value I intend to use the most.Now that we have the 3D Printer connected to the computer, we can start the Hotend PID Calibration. Get the current PID settings using the M503 command. Your printer will return the current PID settings. Run the M106 S255 command in order to set your cooling fan to 100%. Run the M303 E0 S215 C8 command and wait for the process to finish.Sliced for Marlin firmware, although in most cases will still be compatible with other firmwares. A build volume of 120 x 120 x 250 mm (This site can accommodate anything as small as this and anything larger) ... PID Autotune Aim: To ensure the heating of the 3D printer nozzle and bed are safe, stable and consistent. When required: Marlin uses PID (Proportional, Integral, Derivative) control to stabilize the dynamic heating system for the hotends and bed. When PID values are set correctly, heaters reach their target temperatures faster, maintain temperature better, and experience less wear over time. PID Auto-tune - calibration Proportional gain, Integral gain and Derivative values for hot-end and heated bed; Before start using this plugin I strongly recommend reading some documentation about tunning teachingtechyt.github.io. Supported frameworks. Marlin 2.x; Screens. Setup. Install via the bundled Plugin Manager or manually using this URL:Hi, after the latest changes on the M303 GCODE there is a problem with the PID Autotune of the bed. It seems to use the E0 temperature/heater instead of E-1. Steps to Reproduce. Do a M303 E-1 S60 C6; Watch the temperature of Bed and Hotend; The autotune of the bed will fails; Or. Set the temperature of hotend to 200°C; Do a M303 E-1 S60 C6Pid autotune failed bad printer id : r/MarlinFirmware. r/MarlinFirmware • 1 yr. ago. by TickingGamr. ….

Here is a great place to post upgrades, tips, tricks and ask for help for all Anet 3D printers. A great group of people is ready to help you get the answers to your problems with this line of cheap printers.Mainsail temperature panel, source: 3DprintingGeek. Once Klipper is connected to your web interface, then follow the steps below to PID tune your hotend or heatbed. Before you start, ensure that your hotend and heatbed are at room temperature. We recommend starting from a cold start, but you can use the TURN_OFF_HEATERS …Ran into an issue today. I successfully ran PID tuning on my hotend, but can't seem to get the same results for my bed. For context I have an ender 3 pro, upgraded to an SKR mini v2 running marlin the most recent bugfix. I have the stock heated bed, with the tempered glass top. PID autotune code ran was: M303 E-1 S65 C15.Marlin PID Autotune causes serial failure. I'm running Octoprint 1.3.12 on OctoPi Version 0.16.0, running on Raspberry Pi 3 Model B Rev 1.2. It is connected to an Ender 5 with a SKR mini E3 control board running 2.0.x Marlin. This combination works well for printing...I've been using it for a couple of weeks, including several multi-hour prints.Without PID autotune within the set period 500ms It will check if temp is lower than target and raise it till it gets to target. If temp is higher than target it will lower it till it gets to target. With PID autotune it knows when the target temp will start to drop and is able to send the correct voltage so it won't overshoot the temperature.How to calibrate your hotend and heated bed PID settings using Marlin Firmware Autotune. This tutorial is for the cr10s pro and ender 3, but will work for an...r/ender3 • To be honest, the 3D printer is the most valuable investment Ive made. It has transformed my financial situation from struggling n broke to self-employed status in proper wayThe Calibration Dance : To weave the PID Tuning magic on your hot end temperature: 1. Fire up software like Pronterface and head to the G-code terminal. 2. Begin with the command M303. 3. After snagging those calibrated digits, plug and save them into your firmware, and voilà! Your printer’s firmware, in most instances, might be Marlin.Dec 14, 2020 · Marlin Official 2072 (12/13/2020) has a nearly 20c swing for extruder warm up, and generates strange PID values when using AutoTune. Where normal is K14 and abnormal is K7 or thermal failure.. Marlin BugFix 8c05053 (11/01/2020) behaves exactly the same as Marlin Official 2.0.7.2 This command instructs the printer to perform the PID auto-tune for extruder 0 (the first extruder) at a temperature of 220 degrees Celsius. The auto-tuning process will cycle through three times. Step 6: Setting the new PID values After the PID auto-tune process is complete, the new PID values will be displayed in the terminal section. Marlin pid autotune, Learn how to use the PID tuning G-codes M303, M304, and M301 in Marlin to optimize your 3D printer's hotend and heated bed. Find out the parameters, syntaxes, and examples of each G-code and how to save the PID values to the printer's memory., PID tuning. PID tuning is a calibration procedure that ensures the printer holds a stable target temperature at all times. PID (Proportional Integral Derivate) is used on the Original Prusa printers to maintain a stable temperature on the hotend. You can use the PID tuning to calibrate its values in case you are experiencing small fluctuations ..., Description. Turn on one of the fans and set its speed. If no fan index is given, the print cooling fan is selected. The fan speed applies to the next block added to the planner, so it will not take effect until previous moves in the planner are done. Under manual control with an idle machine, M106 will change the fan speed immediately., Hotend PID Tuning - Bad heater id. Hey, I Tried to pid tune my ender 3 v2 hotend after new fan ducts, with M303 E0 S220 C5 command but i am getting: PID Autotune failed! Bad heater id. Im using professional firmware on ender 3 v2. Command looks fine to me. This should run autotune for extruder 1 (E0) at 220°C for a total of 5 iterations., Charles pitches itself as a full, end-to-end product spanning backend and interface, connecting APIs from messaging services with popular e-commerce and CRM Conversational commerce..., Please open a new issue for related bugs. Bug Report Description: Heated Bed PID Autotune times out Expected behaviour: Print Autotune values Actual behaviour: Autotune halts and indicates timeout Steps to reproduce: M303 E-1 C8 S60 Attach a ZIP of Configuration.h and Configurat..., Chipotle Mexican Grill, Inc. (NYSE:CMG) is benefiting from comps growth, strength in digital sales, rise in menu prices and new restaurant op... Chipotle Mexican Grill, Inc. (..., What is the problem? After doing a PID Autotune I get this message Communication timeout while idle, trying to trigger response from printer. Configure long running commands or increase communication timeout if that happens regularly on specific commands or long moves. What did you already try to solve it? N/A Additional information about your setup (OctoPrint version, OctoPi version, printer ..., In order to autotune the PID for each printer I connected to the printer via serial port and did the following. M303 E0 S220 C10. This started the PID autotune for the main extruder at the temperature 220C and ran the test over 10 iterations. After the test was done it printed out something like the following: , OctoPrint-Pidtune. Graphical UI for using the Marlin built in PID autotune function. After autotuning sequence is completed you can modify parameters manually and the hit "Apply" to make new parameters active and "Save" to save to EEPROM. Only tested on Big Box Dual., Without PID autotune within the set period 500ms It will check if temp is lower than target and raise it till it gets to target. If temp is higher than target it will lower it till it gets to target. With PID autotune it knows when the target temp will start to drop and is able to send the correct voltage so it won't overshoot the temperature., Hotend PID tuning in Klipper. For calibrating the hotend, I recommend following the steps below: Home the printer and adjust the nozzle position to sit in the middle of the bed, with about 5cm of clearance to the bed. Set the heatbed temperature to 60C. Turn on the part cooling fans to 100% (can be done with M106 S255 command), Oggi vi mostro come calibrare la temperatura dell'hotend utilizzando il PID Autotune.NOTA: Di default, la temperatura del piatto viene gestita con una altra ..., Open up your command terminal window in your slicer and connect to your 3D Printer. Once connected enter the following command to see what your current PID Tune settings are: M503. You’ll see a section PID Settings with a P, I and D set of values: M301 P XX.XX I X.XX D XX.XX. Example of M503 output (Your values will be different), I am curious about PID settings in marlin. Should there be different PID for both extruders because there are two hotends. I checked PID autotune in repetier with command: M303 E0 S200 C5, it shows me (Kp: 44.40 Ki: 4.43 Kd: 111.31) values. Then just for curiosity, i give following command for 2nd extruder: M303 E1 S200 C5, but it came ..., Singapore Airlines' nearly 19-hour nonstop relaunches on October 11. Update: Some offers mentioned below are no longer available. View the current offers here. We tend to get excit..., Marlin 3D Printer Tool. Marlin3dPrinterTool is a open-source software that helps you configure and test your 3D printer. open menu mobile menu toggle button. Search. About; ... PID autotune for both Bed and extruder. Manual update of Firmware. Period WordPress Theme by Compete Themes., Step 2: Try a PID Autotune. To run a PID Autotune, just start by sending this for your first hotend to enforce a 3-cycle PID tuning for the 200 °C region: M303 C3 S200. For your second hotend, you'd send M303 C3 E1 S200 - the E-value is 0-indexed and defaults to 0 for the first hotend, so E1 is the second hotend., PID took 150s to go from 27.8C to 200C and another 227s for oscillations to become invisible. MPC took 91s to go from 24.6C to 200C and another 25.6s for oscillations to become invisible. For the adjustment from 200 to 220C: PID took 92.5s and oscillations continued beyond the edge of the graph., Preheat hotend to 240-250 deg C and then start PID Autotune and it should work, Make sure your heater and your powersource are powerful enough to reach these high temperatures. One particular problem here is the (unreliable) 5A polyswitch fuse on the RAMPS as 5A might not be enough for a powerful heater. Author., Set the values that control the PID loop for the heated bed. About Marlin; Download; Configure; Install; Tools . ... PID autotune; M304: Set Bed PID;, Heater Power (P) is related to the heater cartridge in the hotend. Most printers have 30 or 40 watt heaters. M306 T will move your hotend to 1mm above the bed for optimal calibration. You should ensure your hotend and print bed are free from debris before running an auto-tune. See the MPC documentation for more information about MPC parameters., I just stumbled upon some code in the Marlin 2.x firmware today (whilst trying to add a silly picture as a boot screen) which adds a menu for auto PID-tuning in the Advanced Configuration menu via the LCD. You set the testing temperature, and off it goes hitting the temperature several times before cooling down again, and inputting updated PID ..., Real estate deeds transfer rights of ownership of a property from one person to another. New deeds are needed when there is a change such as ownership or an addition or deletion th..., Improve your 3D printing quality by learning how to auto-tune the PID settings on your printer. This article explains the basics of proportional, integral, and derivative control., Check if the issue relates to PID values. You can autotune using M303. If autotuning fails, check BANG_MAX parameters and adjust them to something that works for your cartridge. Around 240 is usually good for autotuning PID without overshooting temperature ranges. Set a D-term/I-term ratio to 4/1.5/25., LCD Menu Tree. This page is a work in progress, based on Marlin 1.1.2. In addition to a serial/usb/host interface, Marlin also includes a menu-based user interface for inexpensive character and graphical LCD controllers. Rotate a knob or use buttons to navigate menu items, edit values, and make other adjustments., By the way, if you have more than one hotend, Marlin will use the same PID tunings for all hotends, no matter which one you used for autotune. To make the settings permanent, you can either send a simple M500, which will make Marlin automatically load up the values you just set with M301 and M304 each time you power up your printer., Recv: Classic PID Recv: Kp: 19.91 Ki: 1.18 Kd: 84.08 Communication timeout while idle, trying to trigger response from printer. Configure long running commands or increase communication timeout if that happens regularly on specific commands or long moves. [...] Recv: PID Autotune finished! Puok T:175.00 /0.00 B:23.12 /0.00 @:0 B@:0, PID Autotune Aim: To ensure the heating of the 3D printer nozzle and bed are safe, stable and consistent. When required: Any time the hot end is changed, including adding/removing a silicone sock or altering part cooling fan/ducts. Any time the bed is changed, such as adding a glass/mirror plate, magnetic spring steel sheet and/or under bed ... , Hotend PID Tuning - Bad heater id. Hey, I Tried to pid tune my ender 3 v2 hotend after new fan ducts, with M303 E0 S220 C5 command but i am getting: PID Autotune failed! Bad heater id. Im using professional firmware on ender 3 v2. Command looks fine to me. This should run autotune for extruder 1 (E0) at 220°C for a total of 5 iterations. , Bug Description Tryed Marlin release 2.1.2.1 SENDING:M303 E-1 C4 S55 //action:notification PID Autotune PID Autotune start //action:notification Hea... config.zip Did you test the latest bugfix-2.1.x code? Yes, and the problem still exists. Bug Description Tryed Marlin release 2.1.2.1 SENDING:M303 E-1 C4 S55 //action:notification PID …, My printer's hotend is heavily modified, with much better heatbreak and cooling fans, and regardless of the count iterations I do with PID autotuning, the Marlin autotune parameters always have my nozzle temps fluctuating between -8*C and +10*C when I try to actually print with it. Spending 20 minutes hand-tuning the PID resulted in a +/- 2*C ...