Klipper bulging corners reddit

I know that the bed is tilted where the front left corner is the highest point and the rear right is the lowest point on the bed (the total difference is ~. 590 X127. 5mm layers, getting a large seam gap. All of the pics show that there is inconsistent extrusion throughout each layer, rather than some layers bulging and some not like my issue. I thought my acceleration and print speed were the culprit but my recent testing has proven otherwise. The large cube was printed in the same amount of time as the small one that has those annoying bulging corners. 072 (in Klipper) Acceleration = 5000mm/s/s (in Klipper) square corner velocity = 5mm/s/s (in Klipper) Speed = 250mm/s/s for everything except initial layer, which is 60mm/s/s for everything. Dammit, i've had a thinko first principles, definition of square corner velocity in the kipper kinematics docs, definition of marlin jerk. Retract Before Outer Wall=On is worse than Off. Issues (see pictures): Have crazy seams, at wierd locations no matter what I print. using prusaslicer need suggestions please 240 temp, 50mm/s, 500/s accel in slicer, 3k accel in firmware 1mm retraction, 0. Print a 20x20 cube and measure. 71 E77. I think it has to do with the extruder being able to more accurately modulate the flow through the corners. With BL-Touch probing in the right places etc. If your accel and size of the straight line before corner is high enough, you will probably see the difference at and around the corners. To kinda fix it without addressing the actual issue, you can play with jerk settings, or use "Coasting" in Cura, though both these options will introduce more issues of their own. Confirm speeds. bin to firmware. Since this upgrade the corners (in this case 90° corners) are missing filament. 4mm, but it still looks the same. In Klipper, Pressure Advance can predict nozzle pressure for more consistent extrusion and sharper I have my default speed set to 200mms, my layer height to 0. 000 (the high end usually only with bowden extruders). I´m I new user with the kobra plus. Tried the same cube with a 30mm/s wall speed with no noticeable difference, as well as changing the jerk setting on a print from the default 8 down to 4, as well as up to 12, no real difference. The issue is the printer has to slow down and come to a stop before moving the other direction. Ugly corners on pressure advance cube. 395 F7800. In Klipper, Pressure Advance can predict nozzle pressure for more consistent extrusion and sharper corners. The trick to this I worked out was pretty simple. So, my resume for the Sprite Pro is: Lowest grip possible on the filament. Reply. Tuning instructions and info taken from the klipper documentation: Jul 12, 2022 · Speeds: Outer perimeters 50mm/s, infill and inner perimeters at 100mm/s, Initial layer 25mm/s. Read on to learn how to set it up! Advertisement. Etc. Enable Fluid Motion, Fluid Motion Shift Distance, Fluid Motions Small Distance, and Fluid Motion Angle are settings for printers with smooth motion planners like Klipper. 38139. 2. The last major issue I noticed is related to bulging of the first few layers, often known as elephants foot. Also! you can set max speed or accel by each axis. Klipper helped with the protruding X, I couldn’t get rid of that with Marlin. 78112. So, i started having this weird issue, such that pressure advance tuning seems to give back no viable value, because it looks like that behavior is different on either Outer wall Speed: 45mm/s. So then I was like, I'm forcing more plastic through when using PA, so I upped my speed, and the corners got better, the skipping stopped, and the z seam zits almost disappeared. 85mm). 4mm. effectively turning it off. Here, enthusiasts, hobbyists, and professionals gather to discuss, troubleshoot, and explore everything related to 3D printing with the Ender 3. 70 with same results until corners begin to rapidly deteriorate after 0. Vibration control. Feb 2, 2023 · Dustin, thanks for the input so far. 050 and 1. Check Klipper out on discord, discourse, or Klipper3d. I shouldve had 10mm widths, these are my results. 58193. Yuk. Bulging corners. However using these Printed a calibration cube on my Ender 3 v2 Neo with Capricorn tube. Klipper runs far better and the pressure advanced tuning is awesome for getting rid of bulging corners. So we're pretty much stuck with this mainboard unless you I was experiencing bulging corners on my prints. Good afternoon everyone. 0 + Ender 3 V3 SE profile (manually installed) + 10% cubic infill / 4 walls eSun PLA+ / 215c nozzle temperature / 60c bed temperature e-steps calibrated Test 1: Confirm no mechanical issues. Print more and if you see things that need improvement look into the fine tuning features. I'm at a loss as to what to tune. Confirm all bolts are tight. New Klipper install bottom layers bulge. Everything except for this The Klipper docs are quite clear on this: Typical pressure advance values are between 0. dir_pin: !PB12. The difference is that Klipper will slow down and either stop, or almost stop, at the start/end of an extrusion path. Filament is dry. Check all belts are properly tensioned. 5 was the best SCV value at which I could get an acceptable quality. 042K) in the printer. Nozzle = 0. not to mention the speed/quality increase that input shaping gives you :) On my delta, ZVD dampens ringing the most, but at the cost of a bulge pre-corner and depression post-corner before settling back to a straight line. It’ll be slow, and nothing will be tuned optimally, but at least you’ll have an equal starting point (or confirmation that something is actually broken with the setup, which we can troubleshoot!). I have also seen evidence that linear advance isn't supported on the 4. Try increasing the temperature, lowering speeds and/or acceleration. 493 X147. 50-0. A better test would be one of the voron or annex cubes which have tolerance for a bearing or prints meant to fit together for tolerance. If there is no significant improvement with a pressure advance up to 1. This only happens for corners/edges with a fillet radius greater than 3-4mm and only in the x/y plane. nozzle too close, need to "baby step" to fine tune first layer distance. Currently in the pictures is my last try 100mm/s for infill and walls and acceleration to 2500mm/s to infill and walls as well. That’s due to the corners printing at a slower speed than the edges. So I sliced at 150mm/s, and bumped acceleration from the 500-1000mm/s² range to the 4500-6000mm/s² range. - RPi 3b+. Afterwards, I applied the new value (0. The curling will go away at 8 or 10mm. On creality print i printed the same model with the same speed, accels, flow, temps, layer height, layer width, z-offset, and everything else i can think of, and im getting beautiful perfect box, WITHOUT PA. It's got a speed drive printed direct drive with a dual gear extruder, microswiss all metal hotend with a 0. The bulging will go away at 12 or 14mm. The printer's control board is just a tool/extension for the Klipper host (the raspberry pi) to use. See how the second layer actually flows over one of the first layer corners. The Ender5 example just wouldn´t work for me so I tweaked the bed settings until everything worked as it should. 1) I understand that this can be improved by tuning Pressure Advance/Linear Advance. Klipper is configured with a PA value of 0. Yes, going slower reduces this issue. Layer Height = 0. I was looking for a printer of this size. 3) Klipper running on a more powerful processor can simulate pressure advance in software and make it work If it's only on one side that's almost certainly a bed level issue. I have reduced flow to 70% for bottom/top layers and no change. But instead I decided to bump things up, that way I could expose any remaining issues. All Acceleration Speeds: 300mm/s2. I believe that there are prints that allow you to convert the printer to do this. 20. Jan 4, 2021 · default square corner velocity: 5 default PA value: Tested values between 0. The other dimensions of the test cube are fine, nearly 100% to the point (so 20mm=20mm in X- and Y-direction). The problem is, when your nozzle is going around corners, especially sharp corners, it slows down. A Subreddit for Ender 3 v2 users to seek help, share their creations and talk. Sep 19, 2019 · Contrary to a lot of other corner related problems (where the corners are bulging), I seem to have a different problem where the corners (ONLY) seem to stick out and appear blobby in the x/y plane. The solution is to use linear or pressure advance, or to switch to a much shorter Bowden/direct drive. 3, Trying to follow the guide on klipper. These issues often arise due to inaccurate filament pressure in the nozzle. The owl came quite nice, I even print it at 150% of the speed just for fun, and except the corners New to 3D printing with the machine. After you get klipper up and running I would run a test benchy and see if you are already happy with the results, but if not, you can follow the fine tuning guide below. 489 from the formula of (0 + 24. If no effect, click setting to 'print outside walls first' and see if it makes any difference. Some have gaps right before the corner yet still leave a bulging corner. But I´m trying to set up the printer. 4 steel nozzle, and klippers. Each layer is a series of four lines with constant velocity and extrusion: G1 Z4. 29 Y152. 45 to 0. This document is a reference for options available in the Klipper config file. Seems that linear advance with klipper is the only solution. Return to a default configuration with pressure flash klipper, install the example ender 3 s1 printer. Speed=60 is worse than 40. ) and I can push about Jul 18, 2023 · Printing petg thick, 0. This is even more likely if you happen to have the magnetic build sheet from the ender3 pro. /r/klippers -- a place to discuss all things related to the Klipper 3d Printer Firmware. I am trying to fix the issue on my ender 3 pro, but I tried to increase the speed and acceleration and the problem persists. . 000, then pressure advance is unlikely to improve the quality of prints. 5mm at 30mm/s. 4mm/s. Any spring in the filament in the Bowden causes bulges because the extrusion is non linear. G1 F939. Why are my corners bulging upwards at higher speeds? Ive recently moved over to orca slicer instead of creality print. All* Jerk Speeds: 8 mm/s. Oct 28, 2022 · The accelerometer is not permanently attached to the effector, but it’s how I got the input shaping values in the cfg. This is a 25mm cube with 3 bottom layers and two walls. bulging corners >>> not enough cooling, slow down the speed to allow time for cooling and remove 2-3% of extrusion rate, it helps I have a CR-10 and I recently switch to Klipper. Published Nov 4, 2022. Fix My Print. There is just too much momentum to slow down the extrusion rate. Temp = 220. I think this thermal grease in between hotend and heatsink is also helpful to "seal" the extruder and make it easier to retract melted filament back inside the nozzle. The main issue I’m looking to solve is bulging corners during “high speed” 90mm/s printing. Trying to lay down filament at sharp angles is just tough to do. I came from an ender 3 pro, so a few thing blow out my mind. Retraction Distance: 6mm. e. In the upcoming parts of the article, we will be Ender 3 and Klipper, bulge bottm 2mm-ish of print specifically with ABS. The problem did not improve or worsen with the changes and I Why are my corners bulging upwards at higher speeds? Ive recently moved over to orca slicer instead of creality print. Some places has less contact between layers, so less appealing and less robust. Anoyone know what causes this? Anycubik Kobra Plus with Bulging Corners. 7. Have tuned PIDs, extruder steps. 8mm nozzle and 0. 29 E77. As a real world example, I have a completely upgraded Ender (linear rails on everything, dual Z's with pillow blocks and oldham couplers, BMO V6 setup, BMG, pancake motors [for the extruder] every motor has been replaced with a bigger one, belts replaced, fans are 4020/dual 5015's, running klipper, BTT E3V3 mobo, etc. edit : ender 3 v2, with biqu h2 DD edit 2: also i upgraded to the biqu h2 DD after installing klipper because my dual gear metal bowden sounded like it couldnt keep up for how fast the printer wanted to print now Once I took some measurements and punched in the numbers for input shaping and acceleration limits, I was going to do a like-for-like comparison. You should consider dropping OctoPi for Mainsail or Fluidd. For my bedslinger, 3. It dose help with fine tuning of the printer. It did not completely eliminate the bulges though. 71 E76. With input shaper tuning I was able to print 75-100mm/s with pretty decent quality, which is about twice as fast as the stock setup would do. if you have problems with bulging corners it helps a lot and it also reduces the needed retraction amount. One issue I am trying to address is overshoot on the corners. Nice setup. Definitely look into this if you update to the Community Firmware, it will be night and day difference to your overall print quality. Jerk, acceleration or linear advance. I hope this makes sense. Klipper no longer treats the acceleration in the config file as a limit. They use a pure trapezoidal velocity but it does use square corner velocity when changing directions which is a lot different. Jerk speed is part of the solution to prevent ringing around tight corners, but as long as it's printing slow enough that won't be an issue. I have a modified Ender 3. 98166. The oozing issue is handled during layer changes or non-print moves with 'retract' or 'coasting' settings, but sadly there is nothing included by default that helps to relieve pressure at or near parts of the print with sudden print speed changes (like corners) which results in a slight bulge in sharp corners where the machine dwells for a Klipper can help you and your machine produce beautiful prints at a fraction of the time. If your bed is properly leveled, the nozzle isn't too close, and the over/under extrusion check out there may be a bit of warping. Retraction Speed: 40mm/s. Outer Wall Line Width 0. 6 MB) Fill out above information and in all cases attach your klippy. I'd rather user Cura, so I'd really like to figure this out in the settings. I find that using a fillet in the designs significantly helps. The overall corner bulge, and the bulding in the sides of the Y are inherent to 3D printers. 042 ;Set Pressure Advance" in my start G-code in my slicer immediately after G28. You may be overextruding or have bulging corners. You also have the phenomenon that an outer wall isn't perfectly flat, as there is nothing there to keep the layer from bulging out slightly, which leads to slight inaccuracies of probably 1/4 - 1/3 * layer height or so. The prints are great except for minor bulging in the outer square corners. 2 board However, when I printed the test gcode from marlin, the different k Why are my corners bulging upwards at higher speeds? Ive recently moved over to orca slicer instead of creality print. On the Pressure Advance test cube the walls are bulging inwards or outwards. In both cases the overshoot is about 0,25mm in height. Configuration reference. MCU / Printerboard: bigtreetech skr klippy. You might also want to increase your acceleration for those movements too. I just upgraded my Ender 5 plus with a direct drive and all metal hotend from micro swiss. 2 board aren't capable of pressure advance. So I´ve had it like this ever since I set up Klipper on my Ender 5. I am also using Anycubic gray PLA at a print temperature of 195C. 8mm retraction on my direct drive setup with linear advance enabled. It's really useful at high speeds, like yours, because it helps making lines even and remove bulging corners. 2) From what I read on the internet, the stepper drivers on the 4. 29 E78. Even just adding 10c to the nozzle and increasing the speed by 30 would would have a noticable difference. Pressure advance. It also reduces needed retractions and greatly reduces stringing. When this file is present printer flashes itself with that firmware. Running test prints using Creality Slicer and PrusaSlicer net the same bulging result, even when slowing speed. It's a firmware algorithm that controls pressure inside the nozzle, but can be managed via Cura plugin. And that creates bulging edges. (I hope all 4 pics got posted) It looks different to me. After that there are steps for configuring klipper host by creating a printer. Prints are offset from center. As u/Babogdena said, Klipper is a worth while option if you can get a Raspberry Pi as it will allow you to change settings and immediately update the printer without needing to reflash the firmware through something Fyi you will always have a small amount of bulging unless you upgrade your board to take advantage of linear advance or install Klipper for pressure advance. This bulging can be corrected by properly dialing in linear advance (Marlin forks)/pressure advance (klipper). Try playing around with flow rates to see if you can reduce the effect on your stock setup. Setup: Cura 5. 1mm extra restart. Multiple questions, mostly around Klipper UPDATE Feb 23, 2024: The Sprite connection cable linked below does NOT work. It's hard to show the changes in preview, but we encourage you to check it out. This reduces extruder “ooze” and improves the quality of print corners. Everything looks good, except for these corners that bulge about 0. That's all fine so long as you print fairly slow, but as soon as you speed up you have to deal with pressure spikes in the extruder. Looking at the pics of issue #602, I don’t think that’s what I’m dealing with. the Outer Wall Wipe Distance in Cura) which blurs the seam over that 5mm distance. Junction deviation is like driving a racecar down a track, it slows down proportional to how sharp the turn is. Mar 7, 2024 · Klipper’s Pressure Advance feature solves several problems that affect your print quality at high speeds. So upped my pressure advance, which makes corners a bit worse, and zits at z seams and some extruder skipping. any thoughts on where to look next? Thanks! Front Cal cube was extreme, but bulge in middle seems to be the same Hey! I don't think klipper uses "jerk" at all. E-steps: 416. Tomsfia. Here is the contents of the file: [stepper_x] step_pin: PB13. 71 Y172. Normally the extruder decelerates at the same rate as the printhead, but at corners it takes a small amount of time for the residual pressure to drop, and the continued extrusion becomes noticeable. I've been trying various things but no matter what I do I get ugly corners. You get awful corners at much lower accelerations that where the reduced mass of a Bowden system becomes useful and a bedslinger will always have more trouble slinging the bed around than your will with the toolhead. 444 X127. by Ken Douglas. Then I did a 100mm/s print using Prusa Slicer and the cube printed perfectly at the corners. To eliminate a Z seam, you kinda need to coast past the end of the extrusion (i. Old Printer? Cheap Printer? New Printer? Bad Prints? Great Prints? Klipper can help you and your machine produce beautiful prints at a fraction of the time. i just did a print that would have taken 9 hours in 3 1/2 hours and it looks just as good with no bulging corners and a smaller z seam. I can watch my lead screws turn so it is Linear Advance seeks to correct that by more precisely modulating extrusion and movement speed to mitigate this, leading to less visible seams, less bulging corners and smoother prints. However using these It seems to be over extruding on the corners (e steps calibrated perfectly) like it is lingering on corners, so I tried doubling jerk. Nov 4, 2022 · Klipper: Pressure Advance – Simply Explained. Try printing inside perimeters at 50mm/s and outside perimeters at 25mm/s. Inner Wall (s) Line Width 0. 1 mm from the surface. 020) as given by the documentation. That will lead to over extrusion in corners where your printer is slowing down and depositing more filament, and underextrusiom in the middle of the print line because it put down more in the previous corner of the print and is now 'falling behind' where from where it should be. My print quality has slightly declined overall. I have the 4. But, with the stock firmware, I was able to A small 2mm fillet is added to each of the four corners on the X and Y axes. Again best set with some custom gcode. Under extrusion in corners. org Printer: - Ender 5 Plus. Basic Information: Printer Model: modified flsun delta. I made a stress cube with features on a 20mm face to test ghosting and a clean 10mm face to check my corners. I think your extrusion lags behind when accelerating to the required speed. Mar 1, 2021 · Combing Mode=All is better than Off. Rotational Distance was configured per guide and tested accurate. Bulges on corners and blobs. For me I typically experience your issue if I'm taking corners at 5mm/sec or lower. If your corners are indeed level, then an ABL probe might be able to help with Bulging corners is the third part of this, that's linear advance (M900) set in the custom gcode section of the filamnt profiles, it's pressure advance on klipper and the values are a bit different. In fact, the gcode for the walls is very simple. 71 Y152. 2mm. cfg, and print the exact same gcode. Measured 3x and averaged The only way I can describe this problem is that when I calibrate the bed mesh, the front left section doesn't seem to correct enough. in my opinion, yes. I did a print on 60mm/s and still had the same bulges at the corners when using Cura. The layers were a couple things, the belted Z helped a lot but I took apart my extruder and lubricated it / replaced the gears and that made a bigger difference than I thought it would or I’d have done it much sooner. 2 board with TMC2208 drivers so I cant run linear advance and I needed to figure something else out. That cable is a 24-pin and the connection cable on the V3SE is a slightly larger 26-pin. Doesn’t seem to be elephant’s foot, tried a bunch of different bed and nozzle temp settings, print speeds, etc. 4. Got the measurement from a print of the PA model from Klipper Klipper can help you and your machine produce beautiful prints at a fraction of the time. Calibrate e-steps. The purpose of the tuning cube is to find where too much PA causes what looks like under extrusion; you're not trying to get a perfect cube but rather looking for the point where the corners look "the best" (not bulging out below or thinning out above). but ultimately it is just a remote monitoring tool. next thing I tried was disabling retraction in Jan 19, 2023 · The rounded corners problem (also known as bulging corners and blobs on corners) occurs due to the release of the built-up nozzle pressure (which naturally happens during the print) as the printhead slows down to turn the corner, which triggers filament to come out of the nozzle unintentionally. See the installation document for information on setting up Klipper and choosing an initial config file. 4mm Retract Speed: 40 The print pictured was with the default profile, 80mm/s print speed, 200c temp, . Result: https://ibb. I’d prefer to keep the printer a standalone device and not have it connected to a computer to run. Is it like a native arc welder implementation? Spotted this in the release notes for cura 5. First I thought it was a retraction issue so I lowered it to 0. A quick fix for the stock board is to increase your jerk. Cooling: 70% with dual 5015 blower fans. . It's hard to state how big of an improvement it is over marlin and RRFs use of "jerk". I would double check your Z motor settings. 4 Turbo. I'll try to post a few pics. Regardless of your current 'real' print speed. If it is still slightly there than it is a possibility that your temperature is too high but I rarely find that the case. Award. Klipper doesn't do jerk per se, but you can roughly approximate square corner velocity as jerk/√2 if you want to macro that up Klipper does respect the velocity limits in the config file. Middle looks good to me. In the second pic, that corner on the right looks like a retraction issue, potentially too high but I’m literally guessing at that. 1. org Feb 1, 2018 · To be honest - I do see rarely a difference as far as the "rounded corners" are concerned. The default tuning values provided by theferalengineer's cfg file are already pretty close to the ones I have. *Travel and Initial Layer Travel Jerk Speeds: 10mm/s. If klipper handles a square corner parallel to the axes at square_corner_velocity, hereafter k, and marlin handles the same with a jerk in x followed instantly by a the same jerk in y, then k is the vector sum of the two perpendicular jerks Getting nasty bulging corners off of my ender 3 S1, and can't seem to find a good tutorial on hot to calibrate Pressure advance, Can anyone please share their profile for ender 3 S1 ( orca slicer) Link to a tutorial? Posted by u/UrKillnMe - 6 votes and 10 comments Klipper can help you and your machine produce beautiful prints at a fraction of the time. bin and put it your printer's sdcard. It provides control over the amount of filament in the nozzle to help reduce blobbing in general, but particularly at the corners. Bulge on the Letters not fixed. ramping up the printing speeds for infill and internal perimeters (infill 100mm/s, internal perimeters 60mm/s) Turning jerk up to 20mm/s and and printing external perimeters at the same speed as jerk. org, added the 2 commands into the console, and I'm not seeing any variance in the corners. Multiple questions, mostly around Klipper : r/ender3. In Marlin it will do that with this setting, but Klipper will Going to direct drive reduced the corner bulges for me. 35. Welcome to the Ender 3 community, a specialized subreddit for all users of the Ender 3 3D printer. Pasting your pri…. co/yQ7s8q3. 45 * 0. Thanks! Sorry for the absolutely noob question but I just TL;DR = Pressure advance tower shows crisp corner point at different heights on either side of the corner, have to figure out why, all settings should already be as intended. log (2. Inner Wall Seed: 80mm/s. Calibrate flow. This seems to happen with every hard corner that aligns with the Z axis. When you're talking about Creality, a flat bed is much more rare than a bed with some level of deformation. This is very different to Marlin/etc where the printer control board does everything and can function completely independently of any host computer. log klippy. Printing speed: 120mms (minimum layer time, acceleration control, and volumetric flow rate limit disabled) Nozzle: 0. The descriptions in this document are formatted so that it is possible to cut-and-paste them into a printer config file. Now, your bed may be level at the corners, but it might be bowed or warped in a weird spot. Base is bulging, top is under. The bulging corners are caused by residual pressure in the system when the printhead decelerates for the corner. 4mm nozzle, 40mm/s wall speeds. Fillet radius of 4mm or more give the smoothest results, as sometimes a 1mm fillet has slight imperfections that look like tiny layer shifts. Calibration cube is a flawed test, and things like elephants foot and bulging corners can affect measurements. 541 X147. The walls are accurate thickness at 100% flow. Or the same is pressure advance in RRF/Klipper (maybe, with more settings). New to Klipper, any general help with configuration or any optimizations is also appreciated. You can try enabling coasting to cut To really fix it you need Linear Advance in Marlin, or Pressure Advance in Klipper. 35 gave a Z-seam on the outside with more build-up. 29 Y172. Interestingly the overshoot is on both sides of the corners. However using these Prior to enabling linear advance the walls would kind of "sweep" into the corner and form a kind of gradual bulge now the walls are sharper and I end up with a subtle "sharp" bulge at the corner. G1 Z4. New V3 SE Owner. The linear rail on X also helped a bit. I’m going to try the same part in Cura with similar settings, gimme 20 minutes. i only need 0. Mar 16, 2023 · Check the corner quality on your prints and decide on your compromise between the best corners and the speed of print. org That'll be very harsh on corners and very slow on curves. Having this set just right gets more and more important the more you crank the acceleration up. - SKR 1. org Pressure Advance = 0. This rounds off the sharp corners which allows the printer to smoothly transition between faces without stopping to change directions. A 1mm radius fillet will give a pretty good result. These effects are present to some degree on most real parts. cfg rooted Klipper firmware, as well as even inserting "SET_PRESSURE_ADVANCE ADVANCE=0. Klipper’s implementation does not introduce instantaneous extruder speed changes, which improves overall stability and robustness. MZV has less of pre-corner bulge but more ringing, while EI2 has a little more pre-corner bulge than MZV but still less than ZVD while reducing ringing and having a lower post-corner depression. cfg file. Rename klipper. This is not an official Klipper support channel and poorly moderated so ymmv. 5 and to elaborate: your printer will slow down on corners, so it doesn't overshoot/create too many vibrations. Retraction: 2. This causes a little bit more filament to ooze out in those corners than the rest of the print. When I print a cube, the corners bulge. Fixes it only on the right hand side of each face, letters better but not fixed fully, and notably not fixed on the edge of the Y face again. Klipper while powerful may not help you go faster. Bulging corners, excessive stringing, and inaccurate dimensions are the most notable issues you’ll run into 3D printing at fast speeds. log file. > Klipper supports “Smooth Pressure Advance” - a mechanism to account for the effects of pressure within an extruder. It is also good pratctice to apply greasy around the nozzle screw. 43K subscribers in the ender3v2 community. - BTT TFT35. rm ig pr dm pu mz rw is ft tu