Fluid bed mesh levleing reddit - I generate my bed mesh with 5 samples and said accuracy, probing at 2 mm/s in a 3,3 grid. I also tried 5,5 with 10 samples to improve accuracy without a difference in results.I have a script for G29, equaling it to BED_MESH_CALIBRATE. I attempted having no mesh saved in .cfg and then generating it at the beginning of the print.

 
I looked at the results of the 3 x 3 mash bed leveling and it appears to be using a second order polynomial (parabola) through the points to interpolate the correction. I have a couple questions though. What is the correction outside of the measured mesh? Is that parabola continued to the edge or is the same value for the edge …. Cimemark

If you do a 3x3 it is not so bad doing a new mesh each time but with 10x10 it takes forever. Once you get a good mesh you can keep it until there is a significant change (new bed, reassemble printer, etc). You can always check with G26 and tune some spots every once in a while. I am using silicon standoffs and my mesh lasts a couple weeks at least.Fluidd + klipper bed mesh problem. Question. So I just finally got klipper and fluidd installed on my E3S1Pro that I just got 2 days ago. I have everything up and running after …After uploading the new firmware, Bed Leveling does not work at all. Edit Configuation h file to enable Mesh bed Leveling with manual probe. The Lines I changed. Define Probe Manually. Define Mesh_Bed_Leveling. Define Enable_Leveling_After_G28. Define Mesh_Inset 30. Define Max_Points_X 4. … - Change bed mesh from 5x5 to 3x3. Start at 36,36 and end at 183,183 - In printer.cfg change all Z offset values to 0.000, don't run auto bed level again. It's out of range. - Move nozzle to 110,110 (Center point) and Z to 0.2mm - Use filler gauge 0.23mm and 0.2mm to adjust Z height 0.2mm gauge should slide in but not 0.23mm then save/restart The best way to fix bed leveling and get consistent prints all the time is to buy a cast aluminum 6061 tool plate. Attach a pcb or rubber heater pad underneath it get a sheet of build tak to use for print adhesion then level it to your print head And your done! you will never have to hassle with bed mesh leveling or any of those “fixes” again!With "save setting" you are saving the current mesh to the printers memory (that's the one virtual one you created while mesh bed leveling). You need to tell the printer to access it's memory and pull up that saved mesh to use while printing, and we do that by adding gcode to the slicer's start code. I'm not very familiar with mesh bed leveling ...OK, I used the dial gauge to level my bed, then I reset my Z probe height, then I did a bed_mesh_calibrate, saved that to my config, did another Z probe to confirm my nozzle height from the bed and then I tried printing my Pressure Advance tower. Here is my first layer: first layer. It seems that I'm still off. Keep doing this until you get the same friction on paper as before.\. Send the command “ACCEPT” then “SAVE_CONFIG”\. Lastly perform a auto bed level, once complete, before pressing the save button test your z offset. Move it up 1mm, put paper under, move it down 1mm. It should be same friction as all 4 corners as before. Lastly press ... Test conditions: latest official firmware (SV06-v192A-1028-1.3), auto-home, auto-z-align and bed leveling all done repeatedly with same temperatures. When I turn off the leveling mesh, x axis is as level with the bed as it can be (still …Please help! : r/3dprinter. Mesh bed leveling refuses to work! Please help! Hey guys, sorry if I'm posting in the wrong area. I want NORMAL mesh bed leveling to work. No probes, just basic manual leveling. For whatever reason it doesn't save my settings. I can do it 100 times, run an M500, it tells me it saved and then it's gone. Tells me that ...I have two P1P with this exact issue. I have gone through the wiki to try and resolve it, and the issue is still there. I have submitted a ticket and we will see what Bambu Support has to say (they will probably tell me to go through the steps of the wiki and waste a few days of my time before we actually get around to solving the issue).Trying to understand this aspect of bed mesh leveling - General Discussion - Klipper. Poken1151 February 14, 2022, 5:55pm 1. So I’ve been trying deal with a slightly … [bed_screws] screw1: 58,220 # The X, Y coordinate of the first bed leveling screw. This is a # position to command the nozzle to that is directly above the bed # screw (or as close as possible while still being above the bed). # This parameter must be provided. screw1_name: rear_left # An arbitrary name for the given screw. Please help! : r/3dprinter. Mesh bed leveling refuses to work! Please help! Hey guys, sorry if I'm posting in the wrong area. I want NORMAL mesh bed leveling to work. No probes, just basic manual leveling. For whatever reason it doesn't save my settings. I can do it 100 times, run an M500, it tells me it saved and then it's gone. Tells me that ...MK3S+ here with 7x7 enabled. Some spots do the usual 3x (if I remember it correctly) checks up and down very quickly. Some spots require 4x checks. After the 1x check, it lifts the nozzle a few mm and then does the usual 3x checks. This happens in random spots, some runs almost no spot produces this. Some run, many spots produces this.I would set the Mesh to -.5 to .5 that would show me a more indicative of the problems my nozzle would see. when I look at my Fluidd mesh I would use probed Marcie and use the wire frame. Then I would set color scale to minimum. I would also set bed scale to 1.0. I got tired of my old ender 3 v2 heat plate, build plate, and the upgraded yellow ...I wanted to refresh the bed leveling mesh. But I lost the commands after a reinstall of my system. I have this in the bed leveling plug-in (the add sign is between because the reddit will turn it into a link. M140 S60 ; starting by heating the bed for nominal mesh accuracy G28 ; home all axes M190 S60 ; waiting until the bed is …How fluid is gender, or is there a need to fulfill gender roles in society? Learn about the fluidity of gender in this article from HowStuffWorks. Advertisement When you walk throu...How fluid is gender, or is there a need to fulfill gender roles in society? Learn about the fluidity of gender in this article from HowStuffWorks. Advertisement When you walk throu...View community ranking In the Top 1% of largest communities on Reddit. Mesh bed leveling every print . I want to have the probe check a grid automatically at the beginning of every print like on my Prusa MK3S does. I configured Marlin to do Unified Bed Leveling and 1) it is not automatic but driven through a menu and 2) …In the case of the print shown in the video, it was printing fine at many other points on the bed. The mesh it seems to be making is just a bit all over the place, regardless of z-offset or how many times I redo the bed levelling steps. - Gone through all the 'bed leveling problem' steps in the SV06 Help Center.#define X_MAX_POS X_BED_SIZE #define Y_MAX_POS Y_BED_SIZE #define Z_MAX_POS 250 I'm looking at it now and I can tweak the x about 5mm or so but it's close enough for the mesh to work. Thanks again for the tips.Reddit announced today that users can now search comments within a post on desktop, iOS and Android. Reddit announced today that users can now search comments within a post on desk...Else if your printer has a bed probe like a bltouch, you can use that to get a mesh as your say. The printer then uses this data to compensate for the warped bed as it moves about. This does introduce some other …I think the best temperature is the temperature you would print with. That way the thermal expansion is also calibrated within the mesh. I used 60 degrees. Klipper documentation describes a lot about bed leveling. I would suggest using those instructions instead of only the commands on v400 screen.Uneven first layer after auto bed leveling with CR Touch. I just installed a CR Touch on a CR-10 V2 and I flashed Marlin with mesh bed leveling. However, when I try printing the first layer after bed leveling, it seems the corners are always too close, the middle is too far, and the left side is closer to the bed than the right side.Having a low centre glass bed myself and have used a v4.2.2 and v4.2.7 motherboard both with and without BLT (and compiled firmwares) I can HONESTLY say you DO NOT need a BLTouch on such a small bed. Learn to level your bed and it is a skill you learn and get better at. **** The most IMPORTANT thing is getting the Gantry to run Parallel to the bed. I noticed that if you calibrate through the touchscreen it saves as 6 or 11. If you calibrate using the Fluidd interface then it saves as 'default' unless you change it to something else. .64 firmware has two meshes - 11x11 and 6x6. Looks like in printer.cfg you are trying to load the 6x6, which doesn't exist. The Bed Mesh module may be used to compensate for bed surface irregularities to achieve a better first layer across the entire bed. It should be noted that software based correction … I have this in the bed leveling plug-in (the add sign is between because the reddit will turn it into a link. M140 S60 ; starting by heating the bed for nominal mesh accuracy G28 ; home all axes M190 S60 ; waiting until the bed is fully warmed up (@)BEDLEVELVISUALIZER ; tell the plugin to watch for reported mesh BED_MESH_OUTPUT Fluidd + klipper bed mesh problem. Question. So I just finally got klipper and fluidd installed on my E3S1Pro that I just got 2 days ago. I have everything up and running after …First of all, you must tighten everything on the Ender 3 V3 SE. EVERY screw (the ones below the heated bed that hold the bed frame), and eccentric wheels also. After everything is tightened you can run leveling from the menu and watch the results of the bed leveling. If one of the corners is too low, try to unscrew the screw in that corner, but ...Rainforestnomad. • 1 yr. ago. I have an ender 3 pro and use klipper, and have had no luck with the bed mesh. Due to mechanical problems with the z and x axis, the mesh would …So I've setup the mesh bed leveling because I though that it was a sort of auto bed level with no auto bed level. But then I found out the bilinear bed level that seems the same as the mesh bed level so what's is the difference? Marlin docs doesn't seems so clear about this. Oh and I'd like to know: do you know how to save the previous Z height ...Once enabled, just run the bed leveling from the prepare menu on the printer. Use the paper method and then store the mesh. To load the mesh automatically, I just added “M420 S1 ; Load Mesh” to the default start gCode in your slicer. I’ve seen people replacing the bed springs with stiffer ones.View community ranking In the Top 1% of largest communities on Reddit. Manual Mesh Bed Leveling with with TH3D 1.10 - need start codes to load automatically from Eeprom . Printer is an Ender 3 using Cura and Octopi Some places say to use M420 s1, some say you have to do a series of G29's , I can't seem to find a solid …Here's the config for anyone wanting the same sort of thing. Adjust your screw x/y coordinates to your machine. This is for an Ender-3 Pro. Also note the abort function has an added raise Z of 10. I find this to be more suitable than letting the hotend sit close to the bed. [bed_screws] screw1: 32,32 screw2: 203,32 screw3: 203,203 …Reddit announced today that users can now search comments within a post on desktop, iOS and Android. Reddit announced today that users can now search comments within a post on desk...You need to add command to load default bed mesh at the beginning of the print either in macro or in start part of the slicer. Check klipper documentation on this. Faced the same issue and found the solution, now sharing here. /r/klippers -- a place to discuss all things related to the Klipper 3d Printer Firmware. The bed mesh is done entirely in klipper, you'll only have to send the start commands to klipper via console/serial. If you want you can then visualize the mesh from the console output with the visualizer. Note that mesh is there to help you with a deformed/uneven bed, whilst leveling helps you level the bed when it is mounted uneven. 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 wayI was working on getting my bed leveling working in fluidd but when whenever I run the Bed Mesh it shows my bed is slanted like crazy. When I used octoprint a few weeks ago before I switched to fluidd it was fine. Why is this happening when my bed is level? Bed Mesh. My Code. It looks like this when I did it again. I have this in the bed leveling plug-in (the add sign is between because the reddit will turn it into a link. M140 S60 ; starting by heating the bed for nominal mesh accuracy G28 ; home all axes M190 S60 ; waiting until the bed is fully warmed up (@)BEDLEVELVISUALIZER ; tell the plugin to watch for reported mesh BED_MESH_OUTPUT View community ranking In the Top 1% of largest communities on Reddit. Manual Mesh Bed Leveling with with TH3D 1.10 - need start codes to load automatically from Eeprom . Printer is an Ender 3 using Cura and Octopi Some places say to use M420 s1, some say you have to do a series of G29's , I can't seem to find a solid …I can print small things, but any time I try to print something that takes up over half the bed, I just get headaches. I've tried everything I can think of. I've run the bed leveling routine more times than I can count. I've measured gantry alignment as precisely as my calipers will let me. I've manually tweaked the bed mesh with M421. Run Bed leveling through fluidd/mainsail and generate the bed mesh. Look at the bed mesh. Using the front two Z screws (by the front door) you will rotate them either left and right to make the bed EVEN with the back screw. DO NOT USE THE BACK SCREW TO ROTATE. There isnt a good place to grip it to rotate it without damaging the threads. If you do a 3x3 it is not so bad doing a new mesh each time but with 10x10 it takes forever. Once you get a good mesh you can keep it until there is a significant change (new bed, reassemble printer, etc). You can always check with G26 and tune some spots every once in a while. I am using silicon standoffs and my mesh lasts a couple weeks at least.Undervalued Reddit stocks continue to attract attention as we head into the new year. Here are seven for your perusal. Tough economic climates are a great time for value investors ...I then just set the relevant profile in my start gcode based on my desired bed temp for that filament. Your mesh_pps is set to 0,0 which means interpolation is ignored. You need to set it to something in order for klipper to generate interpretation points between the probed points. I would start with 2,2.I use Cura and PrusaSlicer for various reasons, and I've noticed that they heat up differently. Cura heats the bed to the right temp, and then heats the nozzle. Prusa sends both commands at the same time, and proceeds after both have reached the right temp. This means that depending on what hardware you have, Cura can have a significantly ...After performing bed leveling with the G29 command till finished, a message popped showing "Move out of range: 81.809 235.230 5.784 [0.000]". [bed_mesh] speed: 300 horizontal_move_z: 5.5 mesh_min: 60,10 mesh_max: 117, 225 probe_count: 3,3 mesh_pps: 2,2 ... A Reddit for Solar Power enthusiasts, the latest news on Solar …The best way to fix bed leveling and get consistent prints all the time is to buy a cast aluminum 6061 tool plate. Attach a pcb or rubber heater pad underneath it get a sheet of build tak to use for print adhesion then level it to your print head And your done! you will never have to hassle with bed mesh leveling or any of those “fixes” again! Bed Leveling Fail on P1S. Troubleshooting. Weird issue - I’ve had my P1S for 3-4 weeks and have had just flawless prints for the most part with absolute minimal effort. Yesterday, ai finished a 3 color print right around lunchtime, then a few hours later went to start another one. After maybe 30 minutes I realized I wasn’t hearing any ... The bed mesh is calculated using the mesh_min and mesh_max. This is separate from the bed size. You could make a mesh of just one side of your bed if you really wanted (note: that would be weird, don't do that). From Config reference for stepper position_max: Maximum valid distance (in mm) the user may command the stepper to move to. There is ...Undervalued Reddit stocks continue to attract attention as we head into the new year. Here are seven for your perusal. Tough economic climates are a great time for value investors ... Difficulty getting mesh bed leveling functioning correctly. So I am having a hell of a time getting mesh calibration working properly with Klipper. The mesh does not seem to reflect properly in printing moves. So what I'm doing: Home printer using a physical button on the gantry. Move print head to index 0 of the mesh (as it's the closest one ... Bed Leveling go to Level Corners and level the bed using the spring wheels following the on-screen instructions go to Level Bed and level the bed using the control knob following the on-screen instructions go to Store Settings to save your bed mesh details Now, go to Cura, Preferences, select your printer and click on machine settings. Auto bed leveling should compensate regardless of how far it's uneven. My bed is basically like this just for moving the print head and testing it with a paper. Before each power down, I realign the gantry, heat the bed/probe, and do a height map. Many times the middle will be past 0 so I have to reprobe. From what i've read so far you need to code the M420 S# Z# after the G28, as the G28 command will disable usage of the mesh, and the M420 will reactivate it. S# is whatever slot it's saved in the eeprom, and Z# is a number in mm for the printer to use it up to. For example: M420 S1 Z3 would activate the mesh saved in slot 1, and use that ...I was working on getting my bed leveling working in fluidd but when whenever I run the Bed Mesh it shows my bed is slanted like crazy. When I used octoprint a few weeks ago before I switched to fluidd it was fine. Why is this happening when my bed is level? Bed Mesh. My Code. It looks like this when I did it again.No, you'll still need to do manual bed leveling to a particular regularity; however, with the bltouch, you'll have critical feedback on where your bed is level and isn't. My workflow: Z offset tool (Smith3D firmware feature) Measure gap with a feeler gauge. I measure with a .1mm feeler gauge. If the gap is too big, I adjust the z offset.Home your printer on all axis. Call the manual mesh macro by running the macro from the console window: MANUAL_MESH_START. Use the INCREASE/DECREASE_Z_POS macros to adjust the nozzle z location. Use the NEXT_PROBE_POS to cycle to the next postion. once complete, save your bed mesh BED_MESH_PROFILE SAVE=default.Make sure your bed is preheated to the temp you run at when you make the mesh. The nozzle also needs to be preheated for the z-offset. The z-offset is the distance between your cr-touch probe and nozzle. It should be always be active with the above mentioned gcode. Your nozzle should never be closer than a layer heights distance to your bed.Run ABL. Adjust center offset using paper method. Slowly mode the nozzle to 0x0 coordinates, slowly, while watching the nozzle and lowering the bed to ensure it doesn’t scrape. Once at 0x0 - raise the bed slowly and use the paper method until it binds slightly.Oct 29, 2021 · Mesh bed leveling is a technique to improve the first layer quality of your 3D prints. It compensates for any unevenness or warping of the print surface by creating a virtual mesh. Learn how it works and how to do it yourself with this simple guide. Jan 2, 2023. m00dawg. Well-known member. Jan 2, 2023. #1. Printer Model. 2.4. Extruder Type. Clockwork 2. Cooling Type. Stealthburner. I've read over the mesh bed leveling …How fluid is gender, or is there a need to fulfill gender roles in society? Learn about the fluidity of gender in this article from HowStuffWorks. Advertisement When you walk throu...Fluidd + klipper bed mesh problem. Question. So I just finally got klipper and fluidd installed on my E3S1Pro that I just got 2 days ago. I have everything up and running after … I have bed leveling code on my gcode for all prints. Yes it adds a minute or so to the print, but it saves me from messing with it off anything shifted when removing the previous print. So, I manually check Level every once in a blue moon, and auto level basically every print. Works for me. Oct 29, 2021 · Mesh bed leveling is a technique to improve the first layer quality of your 3D prints. It compensates for any unevenness or warping of the print surface by creating a virtual mesh. Learn how it works and how to do it yourself with this simple guide. So I've setup the mesh bed leveling because I though that it was a sort of auto bed level with no auto bed level. But then I found out the bilinear bed level that seems the same as the mesh bed level so what's is the difference? Marlin docs doesn't seems so clear about this. Oh and I'd like to know: do you know how to save the previous Z height ...I then just set the relevant profile in my start gcode based on my desired bed temp for that filament. Your mesh_pps is set to 0,0 which means interpolation is ignored. You need to set it to something in order for klipper to generate interpretation points between the probed points. I would start with 2,2.I looked at the results of the 3 x 3 mash bed leveling and it appears to be using a second order polynomial (parabola) through the points to interpolate the correction. I have a couple questions though. What is the correction outside of the measured mesh? Is that parabola continued to the edge or is the same value for the edge …Fluidd has a built in bed mesh viewer. Click through to the printer navigation item and calibrate a mesh to view. Note, you’ll need to have configured the bed_mesh option in … Yes. G28 disables bed mesh so the sensor can home your Z axis without mesh compensation. You then need the M240 S1 to load the mesh once it’s homed. Don’t use Sovol Cura. I’d recommend actual Cura or the latest Orca Slicer that has Sovol printer profiles included. true. Once flying high on their status as Reddit stocks, these nine penny stocks are falling back towards prior price levels. These Reddit stocks are falling back toward penny-stock pric...Strange Mesh Behavior Recently. Ok, I'm starting to wonder if there was an update to Klipper that introduced a bed mesh bug. I do Screw_Tilt_Calculate until it's perfect and repeatable, but when I do Bed_Mesh_Calibrate it shows a large forward tilt in the Y direction, like a ski slope with a variance of .4 or more, but it's not just that …Trying to understand this aspect of bed mesh leveling - General Discussion - Klipper. Poken1151 February 14, 2022, 5:55pm 1. So I’ve been trying deal with a slightly … Difficulty getting mesh bed leveling functioning correctly. So I am having a hell of a time getting mesh calibration working properly with Klipper. The mesh does not seem to reflect properly in printing moves. So what I'm doing: Home printer using a physical button on the gantry. Move print head to index 0 of the mesh (as it's the closest one ... Synovial fluid is a thick liquid located between the joints. A synovial fluid analysis checks for disorders that affect the joints. These include arthritis, inflammation, and infec...

You just loosen the nuts at the corners of the plate where the screws go in the top, then adjust the screw to raise or lower the bed and retighten the nut. Make your adjustments in 1/4 turn increments until you get close, then go to 1/8 or 1/16 turns. After each adjustment, run a bed level.. Hufcut funeral home dover plains ny

fluid bed mesh levleing reddit

[bed_screws] screw1: 58,220 # The X, Y coordinate of the first bed leveling screw. This is a # position to command the nozzle to that is directly above the bed # screw (or as close as possible while still being above the bed). # This parameter must be provided. screw1_name: rear_left # An arbitrary name for the given screw. After swapping the bed and the nozzle it crashes into the bed after mesh bed leveling. While leveling it never touches the bed but after waiting for the nozzle and the bed to heat up it ignores the bed height. That's my Start G-code, thanks in advance. Looks like it should be fine, other than the fact that I would recommend … The goal of the nyloc mesh level exercise is to give the mesh level algorithm a much better starting point to begin correcting from. I noticed that even with proper tightening on my heated bed and y axis frame, the mesh algorithm seemed to be using a curve fit to interpolate between measurement points that didn't line up with reality. After swapping the bed and the nozzle it crashes into the bed after mesh bed leveling. While leveling it never touches the bed but after waiting for the nozzle and the bed to heat up it ignores the bed height. That's my Start G-code, thanks in advance. Looks like it should be fine, other than the fact that I would recommend …Yes, it was very easy. I found most of the Marlin configuration.h in the Configuration_backend.h as I wanted to change the hotend thermal protection. The default is 300C, which is way to much for the stock hotend with the PTFE tubing.Peritoneal fluid analysis is a lab test. It is done to look at fluid that has built up in the space in the abdomen around the internal organs. This area is called the peritoneal sp...- General Discussion - Klipper. Sensible bed_mesh settings for a 220x220mm bed? J3D June 13, 2021, 11:47am 1. Hi All, Just to start, fantastic work by Kevin, devs, …I wanted to refresh the bed leveling mesh. But I lost the commands after a reinstall of my system. I have this in the bed leveling plug-in (the add sign is between because the reddit will turn it into a link. M140 S60 ; starting by heating the bed for nominal mesh accuracy G28 ; home all axes M190 S60 ; waiting until the bed is …Duke May 25, 2021, 6:55pm 1. Hi, I have problems to get the bed mesh working. My system: latest klipper firmware (todays) on a raspberry 3b. Ender 3 Pro. What I did: After printing …The difference between lowest and highest spot is a bit big at ~0.37. Those lifted edges wouldn't be so bad if you'd have the middle flat. Could you try and flip the pei, redo the mesh and see what results you get? Did you probe the bed with the bed heated for at least 5 minutes at 60-80? 2. CorbuCurios. • 6 mo. ago.Better than a Probe. Mesh Bed Leveling – Simply Explained. by All3DP, Jackson O'Connell. Updated Oct 29, 2021. Get a smooth, even first layer with mesh bed …I use Cura and PrusaSlicer for various reasons, and I've noticed that they heat up differently. Cura heats the bed to the right temp, and then heats the nozzle. Prusa sends both commands at the same time, and proceeds after both have reached the right temp. This means that depending on what hardware you have, Cura can have a significantly ...I use Earl Millers 1.1.9 firmware with mesh bed leveling. It’s been working great for the last couple weeks. grooverut • 3 yr. ago. Yes, I've done it. Compiled my own marlin 2.0.3. Also flashed a custom touch screen firmware. I'm not sure if you've tried it, but you must add "M420 S" to your start gcode to make it actually use the …Test conditions: latest official firmware (SV06-v192A-1028-1.3), auto-home, auto-z-align and bed leveling all done repeatedly with same temperatures. When I turn off the leveling mesh, x axis is as level with the bed as it can be (still …1 Like. duane777 August 21, 2023, 11:31pm 2. No idea, but there’s the error code and detail. { “ecode”: “03004002”, “intro”: “Mesh bed leveling failed.” }, seguzmanf December 2, …The bed mesh is calculated using the mesh_min and mesh_max. This is separate from the bed size. You could make a mesh of just one side of your bed if you really wanted (note: that would be weird, don't do that). From Config reference for stepper position_max: Maximum valid distance (in mm) the user may command the stepper to move to. There is ...Ender 3, PLA, CURA slicer, 200 nozzle, 70 bed. I tried the manual mesh bed leveling with the help of some youtube videos. All seems to be good. I tried to print this first layer test but when the print head goes to the right part of the bed, the nozzle go down a lot which prevent the filament from extrusing. Sorry for my bad english..

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