Marlin change thermistor type This thread is an attempt at sharing what I've learned in Set a new target hot end temperature and continue without waiting. Most recently, this has been in thread Auto Bed Leveling troubles. You will need to add more values to go to 500°C. I've downloaded the right marlin config, opened it in Visual Studio and found the "Thermal Settings" part in configuration. 300°C Thermistor The 300°C Thermistor works natively with Marlin, Duet/RepRapFirmware, and Klipper. They say it should be set up as #1 but I think it should be #3. You will notice it if you need to change the Thermistor type in Firmware. I measured my nozzle with an external ktype thermocouple. boelle removed the T The thermistor type is configured with the define line of 'TEMP_SENSOR_BED'. But the Revo and lots of other thermistors use the number 5 which is also a 100k thermistor but from Semitec. More . To keep things this way, we finance it Marlin has set your maximum temp to 290 because 300 is the max temperature that the thermistor can read accurately before it is potentially damaged. i have measured my hot end temp directly with a digital thermocouple. 7k worked fine. Thanks!! I have 15x wanhao i3 duplicator V2s, and I upgraded them all to some Marlin port, I think it’s called adiv3++ or something like that. Best. 1. It could be a type 8, try that one. the temp i set in marlin and as displayed in my host app is different than what i actually measure. 7k pullup) * 501 : 100K Zonestar (Tronxy X3A) Thermistor * 6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4. The only cartridge thermistors I have ar The match in Marlin's thermistor table is Type 11 (or Type 60, which gives the same readings but is rated for a slightly different range). sensor_type: "MAX31865" rtd_nominal_r: 100. You're right about M305; you'd need to change the type in Configuration. Marlin If you are compiling Marlin for use with the 300 °C Thermistor, make sure to choose the "100K thermistor - ATC Semitec 104NT-4-R025H42G". : If you want to be a purist, yes, you have to change the thermistor type from "1" to "5", but realistically, they're both 100k thermistors with 4. There's only one built in (for the hotend) at compile time, so the only way to change it is to recompile. I have now installed several different versions of Marlin and with each one I experience the same problem. ; Configuration_adv. They are defined and documented in two very large files: Configuration. It would then be possible to create a tool to "patch" the firmware. 1. h (and recompile) to be able to use the custom values. Perhaps try contacting the author via Facebook? I've also come to the conclution that this can be fixed by changing the thermister in marlin and flashing it to the printer. If your firmware is Marlin, please set the So I was changing a nozzle on my MK3S, wasn't careful and pulled the wire right out of the hotend thermistor. You could use a PT100 sensor with an amplfier (type -5), or a PT1000 in the Marlin is currently set up with a type 1 thermistor, which is a 100k version with a 4. I chose type 1 in Marlin 2. h Settings; UF2 Guide – Firmware Retraction; UF2 Guide – Increase Maximum Temperature; UF2 Guide – Nozzle To Probe Offsets; UF2 Guide – Stock ABL Sensors, EZABL, BLTouch, CRTouch; UF2 Guide – Thermistor Values; UF2 Guide – Video Guide; UF2 Info – Github Repo I got a winsinn thermistor that worked perfectly when on marlin. x Anyone out there familiar enough Configuring Marlin. After installing Klipper and going threw the thermistor types I'm at a dead end. Refer to documentation at Klipper3d. * 5 : 100K thermistor - ATC Semitec 104GT-2/104NT-4-R025H42G (Used in ParCan & J-Head) (4. Then set the #define TEMP_SENSOR_0 0 to the thermistor type you have. Steps to Reproduce. Controversial. Business, Economics, and Finance. I've heard that the thermistor that comes with that hotend (the one with the relatively short blue cables) requires different settings than the original i3 Mega thermistor. 7k pullup) #define TEMP_SENSOR_BED 1 // BED Thermistor Type: 1 : 100k thermistor - best choice for EPCOS 100k (4. I recently changed my thermistor to a 100k epcos thermistor in my orginal hotend from my taz5. If you put a thermistor with beta25 = 3950 into a printer configured for a Type 1, beta25 = 4092, at an actual temperature of 210C it I believe this is still technically the glass thermistor that was stock with the Ender 5 Plus. Will the marlin firmware and bootloader on a cr-10 guide Find out what you need to know about 3D printer thermistors and why you should care! All3DP; All3DP Pro; Printables Basics Buyer's Guides News Formnext 2024. Actual behavior: [What actually happens] Dummy thermistors don't make any difference thermistor temperatures still show o. I updated the firmware to Jay Aristide's all metal hot end configuration but it is only . Now, my printer has a different thermistor installed, and I'm wondering if a switch can be made without breaking anything. Click the R25 value for the correct heater and there will be a pop-up. 0 Id set the thermistor to type 75 again and lowered the HEATER_0_MAXTEMP to 220 as good practice because I never intend to go above 215 in daily use. Some hosts may hide the reply from M105. This is thermistor #5 in Marlin. Step 5: Replace the thermistor. It is supposed to indicate a typical EPCOS thermistor. Where does it need to be set? How do I set the type? Any help would be appreciated! Thanks! How to set thermistor type in firmware or software. change the sensor type to: sensor_type: Trianglelab NTC100K B3950. Is there anything I can change in FW to apply the offset. In marlin software which thermistor should i choose? Should i build the custom "1000" thermistor? * Atypical, and requires changing out the 4. Also found another reddit post where the user has set sensor_type: NTC 100K MGB18-104F39050L32 for the Biqu H2 in klipper. D. Hi folks, I saw this page here: [reprap. Upping to 260ºC now in the settings. It's the maximum temperature your hardware can stand (for a short time) without getting damaged or the end of the temperature table of the thermistor. The lowering, or rise, depends on the type of thermistor per degree Kelvin (or Celcius, if you prefer), this is called its coefficient. The voltage is irrelevant; the thermistor is used as part of a voltage divider in which the reference voltage is derived from the CPU itself. If you have a different Thermistor Specification though you might need to change the software, but 90% of Thermistors used today are NTC 100kOhms. bin file with custom thermistor curves prior to installing it on the printer. That's just the way it works. The only cartridge thermistors I have are the ones with the quick release, which unfortunately has the molex connector in just the right (wrong?) place to either screw up the x axis UF2 Guide – Change Thermistor Type; UF2 Guide – Extra Configuration. Q&A. Set BED_MAXTEMP in Configuration. Update #2: 260ºC seems printable, but having someone help me make a Marlin thermistor table for my thermistor would really, really help. Please follow the example below. PTC_PROBE_TEMP; Set the height above Z=0. But note that above about 270C any NTC100K thermistor will have very poor accuracy and resolution, because the relative change in resistance for a few degrees is very small. All the information it tells me about the thermistor is that it is an NTC 100k ohm thermistor with a 3950 beta value. 0 Anyway, once you decide on the thermistor, there’s a big list in Configuration. TIA News and information related to the Marlin Firmware used on many 3D printers around the world. EPCOS There's more detail in the actual tables, which are in the Marlin\src\module\thermistor folder. #define TEMP_SENSOR_0 int Thermistor Hi all, my silicon heatbed has termistor of these parameters: B25/50=3950K R25℃=100KΩ what kind of termistor should I set in latest Marlin ? There are many of similar I know on my MP Mini Select there's M561 command that lets you change thermistor type, but all the google searches I've done seem to be inconclusive about Marlin The temperature sensor for the heated bed is left at ID 5, which is some standard Thermistor. When changing the thermistor to a different type, you typically have to re-flash your firmware with settings for that type. [] This spreadsheet uses 3 different methods to calculate thermistor tables for input into Marlin (sorry, I'm not sure what the thermistor data input is like in other firmware). You will be able so set. Cables need to be extended if wiring direct to board, and a few Good thinking regarding the thermistor limitation. Please add the attached ADC table to allow users to select this thermistor as an option in their firmware. The thermistor type is configured with the define line of 'TEMP_SENSOR_BED'. Each type has a different temp vs resistance curve, so that’s why you need the type to match. I was printing a part to my elastic powered dart gun that need a built in rubber band. Top. Bed Calibration Guide What is P. org] But I'm unsure how to set my thermistor types either in firmware (Marlin) or software (pronterface). If its not already in Marlin, I would just use one that is. I created my own g code to stop the print at a certain height so I can insert a rubber band. After doing so, the temperatures for both the bed and hotend now read -14 °C. Old. boelle changed the title [RFE] Ability to set thermistors via gcode/eeprom [FR] Ability to set thermistors via gcode/eeprom Jul 21, 2019. I've set T13 as thermistor, but I am not able to setup higher temperature than 285°C ( HEATER_0_MAXTEMP) which efectively means I can setup hotend temp to 270°C. Firmware is programming how the printer behave, gcode is just giving them orders to execute, that are Marlin monitors and controls the temperature of various components using a combination of PWM current, PID stabilization, and temperature sensors. 0 for heating the probe: This means you are changing the temperautrte sensor type to a 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4. Is there g code in Marlin to change thermistor type? So I was changing a nozzle on my MK3S, wasn't careful and pulled the wire right out of the hotend thermistor. h dummy thermistors; Reflashed board with new marlin; Reset board; Expected behavior: [What you expect to happen] Expected thermistors to show temperatures from dummy thermistor. 7k pullups, so functionally there's little difference. A better way for hosts to get regular temperature updates is to use M155 (requires AUTO_REPORT_TEMPERATURES and EXTENDED_CAPABILITIES_REPORT). (at the time, 1yr ago) custom current marlin firmware version bug fix 1. I have an Anycubic Chiron. In this case X refers to whatever parameter you may have set. A possible fix would be to buy a pt1000 (not pt100!) and 100K ohm 3950 1% NTC Thermistor This means it is a Negative Temperature Coefficient thermistor with a Beta value of 3950. If you are using the 300 °C Thermistor with Duet/RepRapFirmware, you will need to create a custom thermistor preset using the configurator. 0. So the defines will look e. Marlin has many features and options. paypal. 7kΩ pullup for 1kΩ. So far I Thermal Runaway Protection: An introduction to the thermal safety systems in the Marlin Firmware What is it, what it does, how to use it, and finally what these setting cannot prevent, and some safety precautions. How to do this exactly depends on the board you In Marlin firmware I have to set option 5 as hotend thermistor type. This system controls how fast the printer reaches the set temperature and how well it holds that temperature once it gets there. While doing that my extruder was oozing pretty good and it solidified on top of the part so when Remove the screws or the tape to free the thermistor. I used the recommended firmware settings for the Ender 3 from the Marlin repository, but I'm a little bit in doubt that the TEMP_SENSOR_0 value of 1 is correct. Regarding the custom thermistor. The only cartridge thermistors I have ar Upgraded printer to Bondtech DDX with Mosquito hot end, and used slice engineering 300degree thermistor. org. Well, there are two things to change, the first is the thermistor. If you skip this step the temperature will not be read correctly. hex file and not the config. h Settings; UF2 Guide – Firmware Retraction; UF2 Guide – Increase Maximum Temperature; UF2 Guide – Nozzle To Probe Offsets; UF2 Guide – Stock ABL Sensors, EZABL, BLTouch, CRTouch; UF2 Guide – Thermistor Values; UF2 Guide – Video Guide; UF2 Info – Github Repo So I was changing a nozzle on my MK3S, wasn't careful and pulled the wire right out of the hotend thermistor. My hotend is either too hot or cold, and I'm in desperate need of the goldy locks zone. The thermistor is an important component responsible for measuring the temperature of the hotend, and the PID autotune relies on accurate temperature readings to adjust the power output and maintain a stable temperature. sensor_type: ATC Semitec 104GT-2. The only cartridge thermistors I have ar That's an NTC type, 100K ohms resistance and beta25=3950, so it corresponds to type 11 in Marlin. 1 onto my Creality CR-10S. Duet/RepRapFirmware. Use M109 to wait for the hot end to reach the target temperature. 2. This article is free for you and free from outside influence. This is only for heated bed. Allows for custom temperature sensor. Feature Request: Temperature Sensor Calibration Tool and Troubleshooting Documentation Marlin needs a feature where you can take a known calibrated temperature sensor/thermocouple and use it to calibrate a thermistor to get the correct t Is it safe to switch thermistor type? I am upgrading my 3d printer with an v6 hotend kit, and I received a cartridge type thermistor. One Time Tips, You Can PayPal Me:https://www. I think it’s because I insulated the bottom of the bed which is probably insulating the thermocouple. i have plotted a curve of actual vs set. I don’t have a specific name of my thermistor but I got it from an old printer. o degrees celcius. What made me wonder, is default config for Creality CR-10 printer. org Well, there are two things to change, the first is the thermistor. In case you have a thermistor with 100k and Beta = 3950, you have to set the value '60' in the corresponding define. My question is: Once I replace the assembly, what kind of software / firmware modifications do I need to do to Marlin configuration for my printer to work correctly? Is there g code in Marlin to change thermistor type? So I was changing a nozzle on my MK3S, wasn't careful and pulled the wire right out of the hotend thermistor. For most cr-10 owners, this most likely means adjusting the config files in Marlin or TH3D UF then flashing that on. Open comment sort options. The max temp you can set is 15°C below the set in the config. Cover the connection with electrical tape; Step 6: Finish up. Ok, so it probably wont allow for the chosen thermistor type. Using Marlin with thermistor 147 which is pt100 pull up 4. Cut off the legs of the old thermistor from the sensor’s wire. Thermistor type 13 in It must be complied with the correct thermistor type. Going good, except for being unclear as to thermistor type? Gonna just go with the stock one I think, as included one does not fit properly and sticks out. To raise the max temp, you need a different thermistor type like PT100. it will make marlin less complicated if you use the same heatbreak and heatblock. Including Slice high temp thermistor will require: Adding attached ADC table to Marlin The volcano hot end should work with any of the common cartridge style thermistors. The thermistor will normally say something like it’s a 100k thermistor and have a number or suck for the type. something went wrong. also i have the From a Hardware Standpoint, sure. Useful if you've had to buy a new thermistor and you aren't sure if the default tables are right for you, or even if you just want to fine tune your thermistor to get better control of temperatures. I should probably change my . Posted by foul_owl . I would contact the manufacturer and ask them for more detail about what type it is. It existed before Marlin 2. New. Some more work on the hardware end is required to I'm currently installing an H2 on a Voxelab Aquila (Ender 3 clone), and am wondering if I'll need to change the thermistor type in Marlin. Notes. 9. h file where I acording to a marlin walkthrough should be able to change the thermistor that is I don't know what kind of resistors are in the hotend! Update: Printing in 245ºC doesn't work properly, I get bad prints, the filament doesn't come out well. Have been using this thermister for a year and select ('1') for my thermister in Marlin, Verified with a DVM temperature probe and the readings are so close, I would except either as true. The bed heater and thermostat are stock. Gullygossner • the thermistor type is a ntc100k all the values you quoted are for 100k thermistors In Marlin you can edit CONFIGURATION_H Find this area and change # 6 to 0 Original: #define TEMP_SENSOR_0 6 // Extruder #define TEMP_SENSOR_1 0 Just put a 100K resistor over the thermistor pins and set the thermistor type to I want to do a complete bed assembly replacement, including: Heated bed; Thermistor; Y-carriage; All the hardware bits, including the z-endstop are sorted and ready to be installed. This is a simple video to show how to install a Hot End and modify and load marlin firmware. 7k pullup) * 7 : 100k Honeywell thermistor 135-104LAG-J01 (4. 8 firmware on the Einsy board. me/EBraimanbu So I was changing a nozzle on my MK3S, wasn't careful and pulled the wire right out of the hotend thermistor. Thermocouples generate a tiny voltage based on temperature. I am getting a generic silicon heat pad. 7k pull-up resistor enabled. . What is the correct number in Marlin for the thermistor on the H2? Thanks! Hi folks, I saw this page here: [reprap. * (but gives greater accuracy and more stable PID) I've used type 1 for NTC 3950 100K thermistors successfully. 1 version of Marlin. h where I can edit the settings. 060000e-8 So in Marlin 2. As you see, there are a few brands that use this thermistor type. I am using a K-type thermocouple (supposed to be good up to 650 °C) in place of the thermistor, but it isn't set up to give particularly accurate temperature readings (yet). According to my quick The Marlin Firmware will halt if no thermistor is detected where it has been set, I’ve not tested it, but it may also halt by setting all the heat sensors to 0. I am compiling version 2. The only cartridge thermistors I have are the ones with the quick release, which unfortunately has the molex connector in just the right (wrong?) place to either screw up the x axis Is there g code in Marlin to change thermistor type? So I was changing a nozzle on my MK3S, wasn't careful and pulled the wire right out of the hotend thermistor. also better for you since you only need to buy 1 type of thermistor and nozzle. Edited config. However, this is also very close to the Type 11 curve, so it makes little difference. I have upgraded my Ender 3 pro with a SKR mini e3. I have changed the setting in the Marlin configurations. In order to configure Marlin for PT1000 temperature sensors, you need to make a few changes to the configuration file, The temperature sensor for the heated bed is left at ID 5, which is some standard Thermistor. 7k pullup) -- // Dummy This article is for hotend tuning. For bed tuning see here: P. PID calibrate and it should get you close @Jozer99, you know, another possibility is to rework Marlin's thermistor table implementation so that the tables are a fixed size and located at a fixed address in the firmware image. The only cartridge thermistors I have are the ones with the quick release, which unfortunately has the molex connector in just the right (wrong?) place to either screw up the x axis No, Marlin has no way to tell you which thermistor table it's using. If you are using Marlin 2. Being a glass bead type, it's probably safe up to a maximum of 300C, maybe a bit less, certainly no more. Looking at the other options, most of them look like 100k varieties, but two look more appropriate - type 5, which says it is used in a 'j-head', which this is, and type 11, which says it is a beta 3950. The only cartridge thermistors I have ar I recently installed Marlin 1. 4 and older, you will need to change the thermistor table for thermistor 1047. I. h to several different thermistors, and it either reads 0 or -14 °C. 7k pullup). The thermistor resistance in the M305 command is specified by the T parameter in the M305 command, not the R parameter which is the series resistance. Some say it's marlin option 5, some say 11, i've heard 12, 15, 20 and more. Used for Volumetric, Filament Width Sensor, etc. Marlin 2. I will give all the links / info I can think of which may relate to the stuff I kind of got right now. The firmware will continue to try to reach and hold the temperature in the background. 7k pullup)"; Hello guys, I'd like to ask you regarding correct configuration of Marlin firmware together with sprite pro extruder. After changing these values, you need to build and flash Marlin to your Board. Setting the following settings shows Creality gave us mixed answer about of the thermistor type of the extruder pro, the last comment about that is the S1 Pro is using the same thermistor that S1, that is, type 1 (from the official S1 repository) I extended the The cr-10 uses a thermistor, not a thermocouple. The guides I can find either leave out certain information or they're for the cr-10. Printables; Basics; Buyer's Guides; News; Formnext 2024; Get It 3D Printed. It's heated bed also comes with ATC Semitec 104GT-2 thermistor, but everywhere, in every config of Klipper you have EPOCS thermistor as default. edit: if you have the appropriate measuring tools you could I need to change a few things for it to work though, the main thing being the thermistor table. Hosts then no longer need to run an extra process or use up slots in the command buffer to receive temperatures. Crypto Multiple threads have been discussing the details of temperature measurements in the Marlin firmware. Any help would be appreciated. - I have opened the marlin firmware and found where the selection setting for the thermistor is with the "1-9" or something like that I just broke my glass bead thermistor trying to take it out of my hotend 🙁 I do have a spare cartridge style thermistor but before I use it I’m certain there is a change I need to make in the firmware but I’m not sure what. g. Tuning? PID (Proportional Integral Derivative) is the system the printers use for holding a set temperature. How do I update my firmware to be compatible with The thermistor for the heatbed has to be connected to the second sensor input. In a forum I found that this should be the gcode setting the correct parameters: M305 P1 B4725 C7. Attach the thermistor back to the bed; Replace the insulation Apologies in advance for this post as I could not find a way to get an answer to my question, even trying the firmware forums on reprap. 4 and older only have values up to 300°C. The heater is also a cartridge, but somewhat bigger. Change the Thermistor. 01 - E3D Hemera Marlin firmware modific Guide ID: 129 -Draft: 2021-05-26 Slice Engineering builds a high temperature (up to 450C) thermistor that still gives accurate readings at room temperature. h contains more detailed customization options, add-ons, experimental There are a lot of confliting information on forums, websites, other subreddits and here. Should I switch my thermistor in marlin to "100k Generic Silicon Heat Pad with NTC 100K MGB18-104F39050L32 thermistor"; "100k beta 3950 1% thermistor (4. You need to change to the thermistor type that's appropriate for the thermistor you are using. The set in the config temperature is NOT the maximum temperature you want to print with. 7k pullup) * 71 : 100k Honeywell thermistor 135 Moreover, given thermistor IS an ATC Semitec GT2 and it works out of the box. -- Sensortypes #define TEMP_SENSOR_0 5 // HOTEND Thermistor Type: 5 : 100K thermistor - ATC Semitec 104GT-2/104NT-4-R025H42G (Used in ParCan, J-Head, and E3D) (4. h Thermistor table 11 is the most common these days. 5. Where does it need to be set? How The Slice Engineering High Temperature Thermistor works natively with Marlin, Duet, and Bondtech 3. I originally thought Type 11 would be the right one too, but most Anycubic printers use Type 1. Forum List Message List New So I was changing a nozzle on my MK3S, wasn't careful and pulled the wire right out of the hotend thermistor. Marlin has some built in safety features that prevent actions when sensors are not detected or not installed wether this means dont upgrade the thermistor or that the heating block isnt capable of 500 degrees - i dont know, but the fact that they are now changing the 500 to 300 instead of advising that the thermistor can be There are a couple choices for NTC 100K thermistors in configuration. cfg to reflect the actual thermistor sensor type that the Revo uses as “Semitec 104-GT2,” right? Again, things are printing great, but I’m sure there is an advantage to correcting this oversight. Ie. Thermistors change resistance based on temperature. I can update my marlin firmware if needed, I am only unsure about compatibility and Tweaking things like stepper current or thermistor type is a matter of changing value in a text file and typing "restart" in console. Most printers use a 100k thermistor, for which the sensor type is “1” in Marlin. Can anyone shed any light on this? Thanks. Additional Thermistors are resistors that change of resistance with a change in temperature. h contains the core settings for the hardware, language and controller selection, and settings for the most common features and components. I have some EPCOS B57560G104F thermistors purchased from Ooznest. One way to fix Marlin PID autotune is to change the thermistor. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. It is also quite a bit easier to configure from scratch than stock marlin, so for me on some printers it is just a matter of being lazy while wanting to get away from outdated stock marlin manufacturer did not If you want to print above 300°C, you will need to raise the maximum temperature value. I am setting Klipper and for extruder options, I am using a custom thermistor because none of the common ones work (generic semitec or max ). I really advice anybody to get heatblock that has holes for both small and large thermistor and check temp/resistance values in Klipper with QUERY_ADC command (pullup=4700) with known thermistor like Epcos, if you don’t know what kind of thermistor is that. Good qualities of thermistors are a predictable, accurately known resistance value at every temperature in its operating range. The manufacturer of the thermistor should be able to tell you what type it is Hello fellow Enderers. Set the park position for G76 to wait for probe to cool down: PTC_PARK_POS; Set the probe position for G76 to wait for probe to heat up and perform Z-probings: PTC_PROBE_POS; Set the probe temperature for G76 to target while calibrating the bed. The board in the link claims to convert the micro volt signal from a K Thermocouple to a 0-3. I've heard you can also make your own table for it to look up but that sounds like a lot of work. Not an issue just a question. I’d rather avoid resetting resistance values etc. 3 or a 0-5v output based on your supply voltage. Type 1 is correct for my printers. So I altered the thermistor type to index 1 (100k thermistor) and tried again, this time setting the extruder temp in steps of 1 deg going upwards from 190 deg, but this time the UF2 Guide – Change Thermistor Type; UF2 Guide – Extra Configuration. If you use a Suggestion: Request: Is it possible to have some sort of way to change thermistor tables without reburning firmware? Use case: If someone has a broken thermistor, or purchases a hot end with a different thermistor, there should be a way to change the thermistor table to (at least temporarily) run the different resistance curves before recompiling and uploading the new Which thermistor should I put on the Marlin Firmware? I'm a little bit lost about the differencecs between the multiple 100k thermistors (I know there is a difference between them related to sensitivity, but I don't know which one would be correct to set on the firmware). If you use a thermistor of the type EPCOS B57560G104F (100K, Beta = 4036), you write the value '1' into the matching define. Attach the new thermistor to the wire by joining them together. h. wizuo lqoguhgi fpea yxcstt gaw pfrn lpu qqzb bhbebn aepnoc