Prusa mk3 y axis shift. But the findings so far are informative.
Prusa mk3 y axis shift Apr 4, 2020 · Second, please confirm that, with power off, that when manually moving the X-axis slowly and fully in each direction, you feel NO snagging, just a uniform pressure along the entire axis. Let me know what you think. I had a spare stepper and mainboard but still have the same problem. Ran a few tests, with more tests to run here soon. Too much pressure caused binding and the Y stepper motor to skip steps. I've checked the belt and did some manual pushing and pulling and had no slipping at all. 4. X Layer Shift, but 'Y Crash' reported. This subreddit is for the budget minded audiophile that wants to grow out of soundbars, boomboxes, mini systems, portable bluetooth, lifestyle speakers, and PC peripheral branded audio solutions. 2mm wide) and in the MK3-version also for the protecting the sledge it makes the whole thing even more rigid too. The part with the non-adjustable bolt hole goes to the back, nearest to the Y axis servo mount. Every now and then the layer will be shifted by like . Jun 6, 2021 · I've been doing some digging all day and since I built it at the end of march I havn't actually done any maintenance to it besides tightening the belt. So I built my MK4 following all the written text and did the initial self test. I'm going to retighten the Y-Axis I think because it doesn't sound the same as the X-Axis. 1mm or so, just enough to be noticeable and ruin an artistic print. My MK3S was running for monthis without any issue, but now i am facing layer shifts on Y-axis at most print jobs. Thanks for the tip to select auto home. Its also really strange to crash when only making an inch of movement in the Y direction at relatively slow speeds. Mar 29, 2022 · RE: X and Y axis not centered on build plate - how to shift a few mm? My mini is slightly off too, I did an extents print and the nozzle bumped one of the locating pins for the build plate. Dec 8, 2022 · Upon completion, I saw layer shift, along the Y-axis, around the layer where I changed the filament. Nov 28, 2022 · RE: Y-axis crashes. 5/S, MK3/S/+). For the second time in a print (first time was a week back on new filament with a weird model, I ignored it) I get this Y shift. In this pic, I have the whistle and Prusa multi color logo printed. A couple of layers are off - then it returns to the original position. com/crashbuildAsk me questions: https://www. Jan 18, 2009 · I have a Prusa Mk3 that arrived in Jul 2018 and have printed a lot of PLA, PETG, Carbon PETG, etc and have had no real problems until about 3 weeks ago. The most wanted feature was an improved frame rigidity. Y-axis assembly ⬢ Find the belt for Y-axis (Y-GT2 650 mm) and insert one end in the Y-belt Sep 12, 2021 · The total counter increases by 1 when multiple y-axis crashes happen per print. 0. Hello everyone, I have customizing a Prusa original MK3S+ into a bioprinter. (Reposting now that I realized you can embed video) My MK4 makes a loud squealing noise when completing fast angled zig zag lines or small circles (so essentially both grid and gyroid infills, among others) when the x and y axis are both making several rapid direction changes. And the last print y-axis crashes counter changes only, when crashes happen. patreon. Move carriage back and forth. Parts check; 1b. Original Prusa i3 MK3 & MK3S & MK3S+ Prusa i3 kit (Archive) Y axis shift FYSETC Prusa i3 MK3 MK3S+ Y-Axis Step Motor NEMA17 42-40 Motor 2 Phase 1. I am having y-axis shifts. ⬢ Use the hole on the left, see the picture. Today when running a print, partway though my printer started printing with a massive (almost 1”) layer shift. My Y axis was loud from the day I turned the printer on. Original Prusa i3 MK3 & MK3S & MK3S+ Prusa i3 kit (Archive) Y axis shift Prusa mk3 Y axis Adjustable Belt Tensioner and BED Holder with Paralelism and compatible with Mods. Sep 14, 2019 · RE: X-axis crash/shift. 1 using MMU2 in single filament mode. For more information about how to change the belt tension, check the guide Adjusting belt tension (MK4/S, MK3. (Specifically the y axis. 5mm, after such a crash detection (printing PETG). Then I had no shifts for some time till now. I didn't mention that just b May 30, 2016 · Re: X and Y axis shift. Testing the y-axis is easier if you isolate the components. ) But per that link a lot of people have been having problems with the Y axis. 8° Shaft 20mm with 500mm/19. Apr 14, 2018 · X axis shift while homing - Odd issue that I can not get answer to. Jul 25, 2023 · RE: Y-axis self test failing consistently. ) I think personally I'm going to play with that, since if my print head hits an actual obstruction I think it would detect a crash on both X and Y the majority of the time. If I pushed through the sticking, it would move again for a bit and stick again. 1. On the front plate of the printer's frame, behind the LCD module, you will find the printed Y-axis belt idler. Lacking linear encoders, and considering that it is so easy to bump any axis a bit when the power is off, I have been wondering how it sets zero too. on the X axis everything is ok, except the last 15-20 mm travel on the right side of the axis. If slowing the move speeds down helps, there are two ideas to look for: 1) curl: this happens when a section of infill isn't well supported and has differential cooling that results in small areas warping; an edge curls upwards and gets high enough to snag the nozzle as it goes by. 1 FW Running latest R2 Printed Parts Slic3r 1. the bearings looks fine, I will be more careful when I will assembly back the extruder cover. Show off your prints, or ask a question. I went a step further and unscrewed the chassis, and the y-axis bearings appear to move smoothly and freely on the rod. Mar 5, 2021 · Demonstration of the issues of my Prusa Mk3s printer's Y axis encountering resistance while moving. Original Prusa i3 MK3/MK3S/MK3S+ to MK4 upgrade; 1. Jan 3, 2019 · High values for PWM_GRAD 10 to 15 give very good current clamping and no more squeaks, but the y-axis is too heavy to use high values. Lower the max acceleraton value on the speed tabl May 30, 2018 · Printer Setup MK3 on 3. 2 Apr 14, 2018 · Everytime on the same height I got a layer shift - but only on the Y-axis. Pressing down on the belt or flipping the power switch seems to remedy this. I reassembled Jan 28, 2018 · 1st layers shift 100% on Y axis? New MK3 printer assembled from Prusa and I'm getting the first few layers on y that seem to shift no matter how many times I run the wizard or bed calibration. So you have to check: - beld tension, not to loose, not to tight - same for the axis wheels (was the issue in my case) - motor pulleys, they have to be fixed, no movement here - dirt on the axis rails Mar 26, 2023 · Y axis crashes and layer shifting. 2, two printers started to lose steps on the Y-axis. Solved the issue by correct pressure on the guide wheels on the Y-axis track. From another thread, apparently Prusa has a vendor-specific gcode instruction to reduce y-axis crash sensitivity. Geeetech PLA (brand new roll, I need to adjust settings a bit to get it smoother). My mk3 that I've had for serveral years is getting random layer shifts on the y axis. 8. In rare scenarios, the printer movement may not indicate an issue, while the test fails. Run the Y-axis belt through Y-idler part and the Y-motor pulley. Aug 17, 2020 · Hi there! Thanks for taking the time to open this thread. Thanks @george-e7, yes I did re-start the printer. I was trying to move all the axis to determine if there was something mechanical causing the shift in my printing which happened twice & both times it was approx . I'm doing this partly because I want a larger print volume, and partly because I want the learning experience of doing an upgrade like this. mp4. Usually, this is no huge problem and just leads to minor imperfections. It provides the same rigidity as some other printers, while providing the sleek look of our milled Dural frame. ⬢ All necessary parts are available in our eshop shop. mind you this was not the printer had printed thousands of hours and worked it way loose. Note that you have to be logged in to have access to the spare parts section. Sep 14, 2019 · I want to have a stiffer and more robust Y-Axis Carriage on my Original Prusa MK3. The instructions should be more complete and clear. The shift seems to appear directly after or before the crash. Encountering some severe Y-axis layer shifting, every layer seems like it will shift back for a distance at every layer. Belt tension on the Y axis reads at 113Hz, and the X axis reads at 114Hz according to the prusa belt tensioning app. I can't for the life of me figure out why, I have rebuilt the x and y axis and replaced the belts while I was at it with no change. Introduction; 1a. A lower value means more belt tension, a higher value means a more loose belt. I tried moving the platform manually and found that it would move then stick. I have triple checked everything associated with the y-axis and it all seems good. I had a perfectly working MK3 which I recently upgraded to the mmu2. Apr 2, 2016 · Original Prusa i3 MK3 & MK3S & MK3S+ Prusa i3 kit (Archive) Y axis shift Feb 23, 2018 · Y-axis skipping? Hey everyone, I have a little issue with my mk3's y axis. i already disassembled the extruder cover. May 21, 2018 · Referencing to PRUSA Printed Parts MK3 PullRequest I've just created addressing one cause of inaccurate Y-Axis homing which results in layer shift when a crash is detected. Simply move it from one end to the other and inspect the movement. Prusa i3 X/Y-Axis Belt Adjustment Guide. Tightened the ones on x and y, it went away completely Nov 27, 2019 · My y axis feels very stiff to move when the power is off. Hey I've had a similar sound come from that stepper in the past. A. a year of more or less problem-free printing (40 days print time) with Prusa i3 mk3 kit, we started to suffer the random layer shifting on Y axis. Consistent 1. We get to the X axis test and it fails. Describe the bug I'm getting repeated "ghost" y-axis crashes when printing models both from the SD card supplied with the printer and models sliced on PrusaSlicer where at similar heights the printer will detect a y-axis crash for seemingly no reason, try to recover, and usually end up slightly offset. Im confused because the shift only appears when there was a crash, i've done a 20h print and there was only one crash an one shift. This is held by two M3X10 screws (purple arrow), going through the front plate. To Reproduce. Help fund me: https://www. Third, please confirm that, while moving the axis as above, the belt is not riding up the wall of the idler pulley (right side of printer). The extruder can move in the X, Y, and Z axes Sep 22, 2017 · New Y axis. Release all tension on the y-belt and detach both ends of it from y-carriage. Every run, I'm getting at least one and usually 3-4 Y Axis crashes that ultimately cause a layer shift and make my prints unusable. I turn off crash detection when I'm printing abs, pc, etc. Change where it bumps and it changes the home location. Thanks! Printer: Prusa i3 MK3S in lack enclosure Filament: Hatchbox Black ABS Infill: 30% gyroid Plate: Textured powder-coat from prusa Temps: 110/ 255 and about 39C ambient. (maybe it is leaned backward some) To check this, use the lcd to move your z-axis almost all the way down and place your square so that one side is on the bed and one side is touching the back of the extruder motor. My new extruder sits about 36mm more forward (towards the viewer) than the original. I let the print continue since the shift didn't look bad and checked the still open STL in Slic3r PE - the file looked fine in the layer preview mode. I move it freely looking around the hot end assembly and notice the zip ties are hitting the right side of the frame. Prusa Slicer, printing from SD Card. I have (quite) new MK3S+ printer and I have the same issue, the Y-axis rattle when it is moving. Mar 25, 2020 · For all: ===== [2018/8/28] I will make a MK3 version similar to the MK2 version because it is smaller and stiffer (okay, less elegant maybe) This Thing is a 3-parts design: - Prusa_XXX_y-belt_Cover - Prusa_XXX_y-belt_Block - Prusa_XXX_y-belt_Sledge Please use the XXX for your printer The _Cover is to prevent the belt skipping out of the teethed The length of the respective axis is determined on the Original Prusa MK3/MK3S/MK3S+ and MMU2S printers using the Trinamic stepper-drivers, which are detecting the end of each axis by the rise of the current going to the motor. @andrewwake77. N. Y-axis belt Slight adjustments. It is weird because back with my Ender, this same pattern would only happen when the gantry eccentric nuts were loose so the stepper motor had difficulties lifting it causing the nozzle to release more filament in that layer. 1 and works fine. It started as a minor layer shift on the Y axis on several prints and now it is every print at about 4-6% completion. Mar 2, 2021 · RE: Y-Axis Skewed. Frame assembly; 3. 2. Today’s most recent example: PLA, default settings for print speeds Things we’ve tried: rebuilding the hotend adjusting belt tension both up and down rebuilding the x axis adding lubricant replacing the bearings It hasn’t gone away. this turns out to be quality issue at prusa as I'm finding out more and more. Expected May 5, 2020 · The X axis moves easily. So about 74 hours into my 82 hour print i got the y axis crash 🙁. There's a few steps involved, but trust me, it's not difficult. This included a firmware update to 3. Honestly, if Prusa sold a printer with a larger build volume, I'd buy it, but in the mean time this will be a fun project. Tighten the screw and ensure the printed part is parallel with the "axis" between the Y-motor and Y-belt-idler. After a weekend spent assembling my Prusa (first time), I fired it up and ran into the X-ax Feb 10, 2023 · Lysee 3D Printer Parts & Accessories - Funssor 1 Set MGN12 Linear Rail Guide Upgrade Kit Prusa I3 MK3 Mk3s Y Axis Linear Sliding Rail - (Size: Hiwin Linear Rail, Color: Aluminum and Screws): Amazon. 375" off the table/surface. I. Just a picture of the Y axis stepper motor zip tied tightly against the back frame. I have already done: * cleaned, lubed, and then re-calibrated the XY axis * tried to lose and tighten the y-axis belt but the situation kept going * Flashed firmware and set up the whole machine again However the Y axis seems to continuously shift in Y only by exactly the wall thickness but only sometimes. Printer disassembly; 1c. May 30, 2019 · Auto-home does not work for Y-Axis - firmware 3. 5, MK2/S, and lower models do not have the belt status option. Also tried 3. Layer shifting is a printing issue that causes the layers of the printed object to shift from their intended positions. I have cleaned the hot end, done a cold pull but I'm not sure what to do next, any help is greatly appreciated! Thanks please see video here. Make sure the s May 15, 2020 · RE: Y-axis/bed rattle when moving. We inspected all the motor connectors are properly inserted in the mainboard and the wires are intact. This is an odd one, today the extruder started clicking and grinding up the filament so while I've been sorting that I also updated the firmware and ran a selftest the first time I put it all back together and it failed on the Y-axis, now the Y-axis seems to move freely and I've had no issues with prints that might be caused by a axis not Jan 14, 2019 · Re: Y Axis crash detection and skipping on MK3. I've taken of the bearing behind the display and ran the y axis motor both forward and backwards and they work Y belt tension: 277 (and it seems tight) Grub screws tight Octoprint (latest) Firmware (3. I went through the layer shift guide on the prusa website and everything checks out fine. (Originally posted thingiverse in 2019, porting to PrusaPrinters) | Download free 3D printable STL models Original Prusa i3 MK3 kit assembly; 1. Mar 7, 2021 · When printing with my usual settings i get an X-Layer shift after some time. Mar 8, 2022 · When the print gets to a certain height it starts to have x layer shift issues. ⬢ This guide will take you through the replacement of the Y-axis bearings on the Original Prusa i3 MK3S+. And it is always exactly at the intersection of where the walls start printing from the floor of the part. It will stay the same when there are no crashes or if the amount of crashes is the same as the last defective print. Post anything that relates to these 3d printers, personal projects, new designs, improvements, questions, news or anything that relates to the main topic. You can easily test that by moving the extruder or heatbed through LCD Menu - Settings - Move axis (X/Y). May 7, 2019 · Layer shift on Y axis after mmu2 upgrade. The MK2. But the total counter allows me to see if crashes happened. prusa3d. My printer is in my garage, airconditioned to 21 degrees celsius. Make sure that your P. I noticed that my z-axis resonates the printer at a certain height so it’s pretty hard to stop that. We are now introducing the reworked Y axis from aluminium extrusion. axis. Hi everyone. ⬢ Guide the belt along the Y-axis, around the pulley on the Y-motor and back. 1 mm layer, 20% gyroid infill Print speed 50 / 80 perimeter/infill (mm/sec) Max Y jerk: 10 mm/sec Max Y acceleration: 9000 mm/sec 2 Jul 21, 2019 · For the y-axis, I pulled the heat bed and loosened the u-bolts until the heat bed chassis could wiggle freely, but still the axis did not move freely. Nov 22, 2017 · This video focuses on improving print quality on your Prusa 3D printer (I have the MK2S model) by fixing issues with parts shifting on the x-axis of the bed. I tried isolating it down to using the shipping files on the SD card with no luck. If you use a custom build plate you cannot use the default input shaping profile, simply because the weight and stiffness of the Y axis will be very different and so the resonances and shape will change and a different input shaping value is required. Self-test is reporting that the tension is X=280 and Y=200. Nov 1, 2023 · When I updated the firmware on all four printers to 3. Checked if the SD Card could be the problem. The layer shifts occur every 2-5 layers and always in the same direction (shifting towards printer backside). X. I re run the axis test and now the Y axis is failing. Mar 29, 2022 · It sets zero for x and y from the motor current spike when it 'bumps' the end of the axis. This results in a small layer shift in p I have the same problem. Properly-tensioned belts are essential if you want the best print possible. -. Flat First: Drive gears must be tightened flat-first. This happens if - the Nozzle is colliding horizontally with something on the build plate (like the model) Mar 19, 2021 · 3 Finally check the Y axis rods are parallel, loosen the 4 rod holders (2 back, 2 front) so are just able to move slightly (8 x screws) and move the axis slowly and gently back and forth fully with the power off, then tighten each end in turn when the bed is at the end being tightened. I hope you can see also the video I attached. May 26, 2023 · A few months ago the X-axis bearings and pulley had to be replaced and then about a month after that we had a "slip" on the Y-axis. The first few tests came out really great, but I do unfortunately have a huge problem wit a loud squeaky noise coming somewhere from the belt on the Y-axis (as you can hear in the video I added). Introduction; Introduction; 2. I got the following problem: In mid-print my MK3s stops, display says "Y-Axis crash detected", machine searches 0/0 on X and Y, then continues print. They don't struggle going around a tight radius like other belts I've used on other builds. reddit Feb 16, 2022 · Fixes the Y Axis shift after crash detection problem. Mar 4, 2020 · an updated x axis that is easier to assemble reinforced y axis parts (the previous version sometimes cracked during assembly) reinforced Z motor holders MK3S and MMU2S released(Feb 2019) In February 2019, Prusa3d released a new version of the MK3 called MK3S. I have two printers, the one with the problem (just 2 weeks old) and an older MK3 (upgraded to MK3s). I am printing currently with Prusament PETG using Prusaslicer 2. Hi Everyone, I'm having a major problem with Y axis layer shifts on my Mk3 with MMU2. Aug 4, 2021 · RE: Layer shifting (Y Axis) Looks like the fast acceleration speeds at the top of your print caused the belt to slip a cog during the print. I've redone all the calibration and checked the belts/screws and it all seems ok. It is usually associated with an abnormal movement of the X-axis and/or the Y-axis, leading the extruder head to be misaligned mid-printing. 5. This Thing is a 3-parts design: Prusa_XXX_y-belt_Cover Prusa_XXX_y-belt_Block Prusa_XXX_y-belt_Sledge The _Cover is to prevent the belt skipping out of the teethed slots (6. 9 out of 5 stars I just turned off crash detection. The Commercial Upgrade i've found had a few disadvantages for me and it's not very cheap. Layer-shifts are most often caused by the wrong tension of the belts or pulleys not being secure. 5 to 1mm). Certainly much cooler than the extruder motor. How are you sure it is coming from the X axis?? It could be the bed shaking causing that. 5mm Y Axis Layer Shift Original Prusa i3 MK3 & MK3S & MK3S+ Prusa i3 kit (Archive) Y axis shift Sep 7, 2020 · Loud squeeky noise on movement Y-axis. During my last print I noticed a small layer shift in Y direction (0. Remember which end goes into which slot of the belt holder. If the grub screws loosen it can allow backlash which expresses itself as just that type of layer shift. Belt tension is good, recently lubricated the bearings, made sure all the axis can move freely, and checked to make sure the pulleys are tightened on the flats of the shaft. Apr 6, 2020 · Small layer shifts like that the first thing to check is that the pulley isn’t loose on the motor shaft. insert the belt all the way into the belt holder. I tried it on my printer. Jun 14, 2021 · Help shifting y-axis on firmware. disassembling the belt and running the motor via the "move y-axis" command. I wasn’t having them in Y but in Xand felt that the false detections were worse than whatever help the crash recovery occasionally provided. I saw a picture in a long post/thread about silencing the printer and noticed a zip tie around the Y axis motor on a post labeled the fix or something like that. When I was assembling the Y-belt tensioners, I had an idea, but that is probably far fetched. Ever since I've upgraded to MMU2 I've had occasional problems with Y axis layer shifting. 11. The upgrade had no changes on the y axis and I've checked the belts, both y and X are fine. I don't have heatsinks on hand but I wanted to try to test Hauser_Ger's stepper driver overheating model. If one over-regulates the overshoots, the y-axis will layer shift due to insufficient torque during big velocity changes. Mid values PWM_GRAD 5-6 seems to be a good compromise. 3) The y axis bearings were still slightly moveable (+/- 0. this suggests that the motor toothed wheel retaining grub screws are loose and the toothed wheel is slipping a little Nov 24, 2019 · After approx. This is on the highest end of green before going into red, so tension should be OK. shift. The fan whine is there on mine as well I think it is because marlin(the firmware) uses slow PWM to control the cooling fan, I had this on my tevo too. Official BEAR join corner for print !!!! (or Sep 29, 2019 · RE: Y axis layer shifts caused by hot end hitting the print. 1 and 3. 0-Beta The Issue I have had continuous issues with Y-Axis on crash detection being offset by different amounts each crash. This I resolved (atleast I think I did). In the last two prints I experienced some heavy layer shifting in the X-Axis. 9/S, MK3. I tried to lube the bearings as @morphias suggested earlier, but the rattle is still there. @tim-m30. Almost as if the belt slips one time through the print by exactly the wall thickness. Many thnks, Peter, for replying, I started to worry that I asked something stupid and obvious . While sitting at the computer besides the printer I heard the printer stop and rehome on the X/Y-axis. Hi Everybody! After a very lengthy wait my pre-assembled Prusa i3 MK3s finally arrived this morning. See the attached image. Checked the belt on the Y-axis, checked if the filament sensor is maybe causing the problem. Hi there, the Mk3 detects "crashes" by detecting the Axis motors skipping steps. Update your Prusa MK3S printers to Prusa-Firmware v3. I trim/replace them and X axis test passes perfectly. 5 mm): Tightened the u holders a bit. As stated by brescoli, putting the belt holder in correctly is critical. The shift was in the X-axis and is just when the internal overhang shelf turns to vertical. The unit arrived in okay condition, although the X carriage belt was very loose. on X axis I have 253 and 286 on Y. For both axes, it "feels" like all the resistance is coming from the motor Jun 6, 2019 · RE: Manual Moving of the "X,Y,Z" axis. The clue we can give you is that the belt should sound roughly like a low bass string when plucked. There is a loud grinding noise and then the layer shift. If the bolt comes loose, Y homing has problems also. 1; Print any model in normal mode that requires significant Y-axis movement. I just kind of assumed this was the Y-axis bearings/pulley causing this because the close timing to the X failures. Feb 19, 2024 · after 2 weeks of support with prusa going absolutely nowhere. Aug 13, 2020 · Permanent layer shifts on Y-axis, no remedy working. Slice your g-code using PrusaSlicer v2. Jun 12, 2021 · X-Axis Layer Shift. So i've designed my own Version without the disadvantages, make it more robust and cheaper (only a quarte of price if china Rails are used) It turns out that it's almost always a mechanical issue where the axis don't run smoothly. Download and print the belt tension meter GCODE file from Prusa, dial in the range. Aug 3, 2021 · The X axis seems a bit tight as I have been getting right side layer shift on some taller models, and crashes. Hello, I assembled my first Prusa i3 MKS yesterday and I'm really happy with it. Causes sudden motor skipping. Common problem caused by improper assembly. I recently repaired an old Prusa mk2s and it's been working phenomenally for quite a long time but recently I started using PETG on it for the first time and it started having major layer shifting but only on the y-axis. Oct 1, 2021 · GT2 X-axis belt; GT2 Y-axis belt; I'm going to investigate some of the prints that allow easier belt-tightening and other minor upgrades at the same time. or SuperPINDA sensor is roughly 1 mm higher than the tip of the nozzle. Agreed. But the findings so far are informative. Hey folks, I am having an issue with my Prusa MK3S. I even proved it by removing the MMU3 and had a number of perfect builds. prusa3d/Original-Prusa-i3#76 Sep 29, 2019 · The belt test passed the x axis test but as soon as it tried to move along the y axis it failed. Essentially what happens is that the pause command gets actioned, the printer parks and then recommences as would be expected - but there is a significant Y-axis layer shift of about 1. 7. Are you getting some major shifting in your y-axis? Maybe this will help. I upgraded firmware to the latest and I launched Wizard 2 times, each time I got a successfull result, everything is good: perpendicular axis. How to fix ghosting (MINI): Check the X/Y belts. 0 to 4. Apr 2, 2023 · RE: Y-axis crashes. Lower the max acceleraton value on the speed tabl A shift means that either the x or y carriage has become desync'd from the controller, as the only way a printer can keep track of each axis's position is dead reckoning from the Home position, and collision detection at either end. The main things I've tried are: Tightening the x-axis belt (value 258, shown in photos) Greasing the x-axis rods with silicone lubricating grease Replacing all three x-axis bearings (and packing those bearings with grease beforehand) The video is of the X-shift print. I have turned it off and back on but the Y axis out of sync and will not calibrate correctly. that require higher ambient temps. Its a function in the stepper drivers. There should be no binding anywhere along y-axis travel. May 30, 2023 · I just completed assembly of my MK4S kit. The Y motor felt warm to the touch, but not hot. As such, the extruder is almost completely redesigned on my model to print gels instead of plastic. @kpreid. All things related to Prusa 3D printers. com . Hi Thomas, the front left hand model in your picture, seems to show a layer shift to the left and then a couple of layers higher, an equal shift back in the opposite direction. After this upgrade I'm now getting weird layer shifts on the y axis at the beginning of every print. I had some pretty bad layer shift come out of nowhere about a week ago, turns out it was the grub screws on the y axis that attach to the motor shaft (for the belt) loosening over time. Original Prusa i3 MK3 & MK3S & MK3S+ Prusa i3 kit (Archive) Y axis shift But the heatbed has some special points used for calibration to see if the bed is moving perpendicular to the X axis rail. RE: Y-axis crash causes X-axis layer shift. (Perhaps calibration fails because printer cannot find y position correct due to movable y axis bearings). When i check the crash log it says there was a Y-Axis crash. Original Prusa i3 MK3 & MK3S & MK3S+ Prusa i3 kit (Archive) Y axis shift Gates Belts and MK3 X/Y Axis Tension Got my MK3 kit just before Christmas and it included the newer Gates belts (orange-red fabric visible on tooth side). Fortunately, the belt tensioning process is a simple one. This happens on firmware 3. Jul 18, 2019 · Hello! Last week I received and built my MK3S kit, and was immediately able to begin printing without any problems. Hello, I have a brand new MK3s+ and the first couple of prints came out really nice. But Prusa is dual Z-axis Aug 4, 2021 · RE: Layer shifting (Y Axis) Looks like the fast acceleration speeds at the top of your print caused the belt to slip a cog during the print. Possible reasons ? The mk3 printer has 'Virtual' endstops, the printer drives the X and Y axis until it bumps into the of the travel distance and then calibrates itself based on that information during the printing action, the printer also senses if the motor X and Y axis motor, stalls! this can indicate a collision. 6. Smaller prints seem to be fine. The extruder moves freely, the tension is almost identical, just ever so slightly tighter on the top right side than the left as you look at the front face, and I couldn't find any filament or clutter on the belt. (Although the recovery is prone to layer shifts too. Everything is fine except I get Y-axis staircase layer shifting about 90 minutes to 2 hours in to larger prints. Sep 16, 2018 · Re: Y axis noise normal or not? I have tried aligning the rods the best I can. I recently received an assembled Mk3 (I built the Mk2s last year, I had another build project happening so I wanted the assembled Mk3). First thing that comes to mind is that maybe the z-axis isn't perpendicular to the bed. However, I noticed that the bed is rattling only if it is moving at a speed from a certain range. 5mm, this is replicable every time on any file - the layer shift is exactly the same. Hope this helps some people Y-axis, make sure the u-bolts aren’t tightened too much, only enough that they don’t wiggle. It almost always happens on longer and bigger prints. Printer type - MK3S Printer firmware version- 3. If the Y motor gets too hot, the tolerances for crash detection get skewed and it'll just keep spamming Y-axis crash detections. Prusa. Which worked tried the same with the belt assembled. The Y axis belt holder is part of the bump stop. Original Prusa i3 MK3 & MK3S & MK3S+ Hardware, firmware and software help. Actually, in this image it looks like the job slipped twice. 40. I took the heated bed off and disconnected the drive belt, and I'm able to move the Y frame back and forth without any binding, so it's definitely resistance in the motor. No enclosure, no wireing getting caught. Feb 26, 2021 · I just noticed our biggest print that had a shift at the top is in the background, seems the taller the print, the bigger the shift on the print if it does happen. i checked the last place. X-axis & X Aug 14, 2019 · 2) Decreased the tension of the y axis belt (one tooth less: now y belt has status circa 270). Some May 29, 2019 · RE: Motor pulley too loose Y. Aug 28, 2020 · Y-Axis Crash detected. MK3. The Y belt is relatively tight compared to my X, but not overly so. ⬢ The belt should be quite tight, check it by pressing together both sides in the middle of the frame by gentle force. Im not sure what you mean by hold the stepped and the pully close together, but for me it turned out to be a loose pulley. Y-axis layer shift-- you'll want to check the belt and pulley under the print bed. I'm printing two instances of the same part, total time about 2:45. Tried restarting but kept crashing. Jan 27, 2023 · So we’ve been encountering a problem with one of our prusa i3 MK3i’s for …like a year now, in which there’s rather horrible layer shifting. I need to put a lot of pressure to push the hot bed (feels like 10 times more than the X axis) The belt also feels stiff to bend, stiffer then the X axis. Apr 4, 2021 · Original Prusa i3 MK3 & MK3S & MK3S+ Hardware, firmware and software help. Thanks in Advance. The loud noise sounded like there was a collision but before I started the print job, the extruder moved smoothly and freely along the X and Y axes and there was nothing blocking the path of the heat bed. Clean and re-grease the rods/bearings will help. I use Simplify 3D. sincerely on Y axis everything runs smooth. Make sure that belts are properly tightened. /r/prusa is a place for people to discuss the open source Prusa 3d printer design. At some point the print came out ok and without a layer shift. Apr 12, 2022 · Layer Shifting Along Y. Sep 24, 2020 · There is one small issue I have: The printer frequently detects crashes in the Y-Axis with no apparent cause. 13. For more information on adjusting the belt tension, please see Adjusting belt tension (MK4/S, MK3. Sep 16, 2023 · Checked cables and connections on Y-axis motor; Fell back from firmware 5. I spent over 20 hours with the help desk and they kept insisting that the MMU3 with my MK4 had no relationship to the y-axis shift. It starts at about 5mm up on the z axis and shifts backwards about 10mm. The issue was prusa assembled tech failed to tighten the xy belt clamps. I tried everything. Mar 25, 2020 · RE: X axis problem and crash detected. Feb 4, 2016 · Had Y axis stepping issues. However, a few days ago I noticed Jul 4, 2018 · Re: "Crash detected" message during print. com: Industrial & Scientific Have been working through some issues and first issue was X-Axis layer shift until I tightened those factory screws up. Any ideas? I'm having trouble with x-axis layer shift, and my attempts to solve the problem have not been successful. Also worked fine Now whenever I try the self test, the y-stop seems to kick in immediately. Original Prusa i3 MK3 & MK3S & MK3S+ Prusa i3 kit (Archive) Y axis shift Make sure nothing blocks the movement of any of the axis. What could be the cause? Jan 23, 2019 · Consistent 1. Then started with the Y Axis layer shift and I started tinkering with those screws and have been able to consistently print good benchy’s and xyz calibration cubes (as pictured in the photo) but still getting sporadic and Jun 16, 2018 · Extending the Y-Axis. I wouldn't be so confident about the G10 not being the issue. Parts preparation; 2. Read the article below and follow its troubleshooting steps. . It feels tight, just not as tight as the X-Axis. Sep 10, 2019 · RE: Random layer shift. X gantry moves freely side to side, gets a bit tight as it reaches the far right end point, but my other 3 MK2 units also feel a bit tight on the right, so I have to conclude this is just the design. The issue was with my impatient desire to print everything at 100mm/s in silent mode, on 60mm/s everything printed out smoothly. 6inch Integrated Connecting Wire for Prus i3 MK2 MK52 MK3S Y Axis 3D Printer Parts or CNC Machine 4. May 21, 2018 · RE: y-axis is loud. 7; Checked for protruding bearings and tightness of bearing fixations; Removed and re-attached Y-axis belt tensioner parts; The problem persisted. Since running the IS firmware my Y-axis fails to home every time I begin a print. The Y axis would seem to stick about 4-5 times over the course of travel (maybe about every revolution of the motor spindle). Jan 18, 2023 · RE: Layer "shifting" mid-print. D. If one or more of those points are "missing" or unreachable (hitting the other end of the frame) the printer could detect that something is not quite right and stop. Feb 19, 2019 · Prusa i3 X/Y-Axis Belt Adjustment Guide. 1: The crash test shows Y 6 (which i don't understand since the shifting occurs in the X Apr 2, 2021 · Y-Axis failing axis selftest but seems to move fine. 1 latest and reflashed) Normal power mode No SD card in machine Filament sensor ON Crash detection OFF 0. I took a 15cm external desk fan and pointed it directly at the back of my Einsy Rambo board on high and the mk3s+ was finally able to finish my cylindrical test print without any Y axis crashes. 5mm Y Axis Layer Shift. Any recommendations? If anybody has found a good online guide beyond the Prusa Mk3 kit assembly guide, a link would be appreciated. 5. MK3S+ Prusament PETG. The Y axis movement seemed smooth when moved by hand — didnt feel any resistance; and no scratches on the linear rails. Pictures of boxes and shipping notices are considered low-effort and will be removed. I'm planning to extend the Y-Axis of my MK3 to 300mm. As per the X shift it is right on the layer line of that massive black chunk of burnt filament but I'm unsure if it was the cause I think the layer shift just attributed is dislodging the chunk from the nozzle not the other way around. goyetus. are you getting a lot of crash detections? (LCD Menu option Fail Stats) It may be that the printer is resetting and that the Y axis is having difficulty homing properly, If you have a lot of crashes detected, you should check your X and Y axis move smoothly, a motor pully may be rubbing, or an idler not running freely, or a linear bearing not running smoothly. The frame is also optimized to add 10mm of Z height totaling at 210mm. Yet, I had a visible layer shift, around 0. uic ifwa xmaynt apthjzz qakgh ylgrp fdhohc wvo icvemi utcp