Calibrate xyz steps ender 3

Calibrate xyz steps ender 3. And, while both extrusion systems print similarly, it’s worth noting that Bowden-drive printers typically require a higher E-step value than direct-drive machines. Learn how to correctly set your Ender 3 V2 Z offset so that you can optimize your 3D prints! Apr 18, 2024 · I am trying to improve the dimensional accuracy of my Ender 3 S1 Pro and I printed a calibration cube. We would like to show you a description here but the site won’t allow us. Make sure that both ends of the X-axis reached the top. a Extruder eSteps There is a motor that turns and pulls filament off your spool, and pushes it through the bowden tube and to the hot end. Here are the steps to follow on the Ender 3. Before you do any of these steps, make sure you have completed tuning the basics: Tune your Hot End and Bed Temperature (10-20 minutes &amp; automatic) Tune your filament extrusion rate, a. patreon. To further calibrate your 3D printer print one out and you can then measure this models dimensions against the expected dimensions. Get it right with these Ender 3 Z offset tips! May 28, 2024 · Step-by-Step Guide to Ender 3 V3 SE Extruder Calibration Step-by-Step Guide to Ender 3 V3 SE Extruder Calibration Accessing the Calibration Menu. 0000000000mm calibration cube (cry silently in your bed that your 150mm print is like a mile off) Dec 10, 2022 · The first step to properly level your Ender 3 is to preheat the bed surface to a temperature that you normally use for your filament. - https://amzn. A couple of hiccups but would like to ask to better understand it. Caliper or Ruler. I extruded 50mm in software and my measured actual extrusion was 49. 9. ' Current M92 value = 80. Permanent Marker. 8 degree steppers" and therefore have 200 full steps per rotation (360 divided by 1. Welcome to the Ender 3 community, a specialized subreddit for all users of the Ender 3 3D printer. 2 or 4. Jan 21, 2023 · The Ender 3 is a perfect example for this as it has a design flaw with respect to its belt paths (check above link) But in any case, it is your printer: go ahead and tune whatever you like; produce nice reddit show-offs with a perfect 20. 0) Tune your filament extrusion rate, a. 7 32 bits silent mainboard. However the Z axis was horribly off, measuring at 19. then: Here, enthusiasts, hobbyists, and professionals gather to discuss, troubleshoot, and explore everything related to 3D printing with the Ender 3. Creality Ender-5: 92. The printer is already calibrated. By using something like this: and measuring the steps using a micrometer, I’ve consistently found that the calculated value Tips for Achieving High-Quality Prints with the Ender-3 V3 SE. Bed Leveling. See Chapter: Basic Calibration, for a link to the web site and some printables to help with the XYZ You never need to calibrate x y and z steps on an ender 3. Permanent Marks; Calipers or Rulers; How to Calibrate a 3D Printer: Sep 16, 2022 · Wonky tolerances or other issues? 3D print a calibration cube and follow our guide on XYZ calibration cube troubleshooting. If all axes measure exactly 20mm, well and good, but if there is a difference even in fractions, you need to calibrate the XYZ steps. 9 degree steppers" and thus have 400 full steps per rotation. 6. (Prepare -> Preheat PLA) Home the axes of your Ender 3. Nov 7, 2020 · Creality Ender-3: 95. If you have an Ender 3, Bltouch v 3. To perform this test, you’ll need to print a cube and measure its dimensions using a caliper. Just follow the steps below to get your new ESteps. 42 mm. Having discussed the optimal Cura settings and common print issues of the Ender-3 V3 SE, we’ll conclude with some other tips to attain high-quality prints. Instead, load your filament and mark a line somewhere along your filament that’s 150mm long. The first step to calibrating your extruder is ensuring the proper filament extrusion by calibrating your e-step steps. by Che Simons, Emmett Grames Updated Mar 30, 2023 . My first xyz calibration cube was fairly close on the X and Y dimensions, with less than 0. Thanks for watching and I'll try to keep'em coming! Calibrated Caliper that I use https://amzn. The bearings can be moved to generate sufficient tension between the stepper motor and bearing. If your Ender V2/S1 printer does not have hardware modifications (stock) you can use the firmware as it is, for Neo, Max, Plus printers or if you made any hardware changes (bed, hot-end, fan duct, etc. The X and Y faces (surfaces) could be better. In my case, I am using Digital Calipers from Amazon and a sharpie. Oct 24, 2022 · Here’s how you can set the Z Offset on an Ender 3: Use the Ender 3 control screen; Use custom G-Code; Use your slicer software; Manual calibration by adjusting the limit switches; Use the Ender 3 Control Screen. Updated Jun 23, 2023. The goal of this article is to explain how to calibrate your FDM 3D printer as easily as possible, so you can print perfect results as quickly as possible. Not loose at all. I just ran a test to see what the difference was. com/DtopinventionsDid this video help you out? Learn so Sep 3, 2023 · Mark your fillament at 100mm and 120mm as it's shown on tape measure, by mistake i wrote 110mmEsteps calculator: https://www. This same calculation is used regardless of the axis. Once you’ve properly calibrated your extruder steps, it means that when you tell your 3D printer to extrude 100mm of filament, it actually extrudes Welcome to the Ender 3 community, a specialized subreddit for all users of the Ender 3 3D printer. I used the method from the link above. The printer will start the calibration by aligning the Z-axis. 467. Mar 3, 2023 · Bowden setups are common on older, budget 3D printers, like the Creality Ender 3 and Ender 3 V2, but direct drive printers are on the come-up. We’ll need a couple of tools to get started, something to measure and something to mark. This guide will help you better understand motor steps and how to calibrate e-steps on your 3d printer to get repeatable, highly accurate prints. It's best to set X to 0 and line up a good ruler and move X to 220 and check accuracy that way. This cube. If it doesn’t have the correct measurement, adjust the Z-steps until the measurement is correct. Cette méthode est un peu plus simple et plus rapide que celle que j'utilisait avant. The tension on my extruder arm seems good. Then home the printer and navigate to the first XY position. Follow these steps to level the bed of your Ender 3 Pro: Sep 13, 2020 · Once you’ve 3D printed and measured your calibration cube, depending on the measurement, you will need to adjust your steps/mm directly in your printers firmware. Jan 25, 2021 · Once the command’s window is displayed, you can start the further process to calibrate E-Steps. My print speed is usually low, I use the stock value of 40mm/s from the Prusa Slicer, but normally lowered it, trying to get a better result. ///// Note that I recommend calibrating the extruder before proceeding with this calibration step. First we need the 'Current M92 value' for X we made a note of in step one. Whether you're looking for guides on calibration, advice on modding, or simply want to share your latest 3D prints on the Ender 3, this subreddit is your go-to hub for support and inspiration. This geometric marvel possesses precise dimensions that will let you gauge whether your printer’s calibration is on point. Musique After a brief preparation of your 3D printer for calibration, I’ll show you the steps you can take to make these calibrations. In this video, we are using a Tevo Tarant About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Dec 14, 2020 · ender 3 v2 estep calibration guide. 6 steps/mm. When required: This step is not necessary for many people, but is still worth doing if you are going over the machine in detail. If you have an older Ender 3, you may still have an 8 bits V1 mainboard. However, you’ll have to use the connected slicer software to send the G-Code to the printer for others. Jan 12, 2022 · Calibrate The Steps Per/MM for the X, Y, And Z-Axis; How to Fix Ender 3/Pro Z Cable Too Short. Rather than jus Jul 28, 2016 · Calculations for calibrating X-axis. Then we need the two measurements we just took. com/user?u=806627In this video I show you what goes into calibrating your 3D printer Mar 18, 2023 · The method that I used to calibrate is described here, Stupid Fast Way To Calibrate E Steps On Ender 3 (V2/Pro), calibrated with and without the Bowden tube - on the another end before nozzle. Perfectly calibrate your extruder e-steps. 2 days ago · This is a simple calibration test cube for your 3D printer with X, Y & Z written on the axis. com/estep-calculator/ Dec 23, 2021 · My Ender 3 v2 has some dimensional innacuracies I would like to fix, but I am unable to find the steps per millimeter controls in Cura. 78 which made my rotation_distance go from 7. I guess that these two issues are related? X and Y are pretty good for tolerance. It's slightly wider at the bottom as if it's squashed and the Z measurement is slightly under sized. Don't "calibrate" the steps per millimeter for any X, Y, or Z axis. My cube calls Jun 6, 2022 · Jyers firmware on GitHub https://github. Creality Nebula Smart Kit for Ender-3（4. 00” (stock Ender 3 or Ender 5). Apr 10, 2022 · To calibrate the Z-axis on your 3D printer, download and 3D print an XYZ calibration cube and measure the Z-axis with a pair of digital calipers. Calculate Extruder Steps. Don't try to do it when extruding melted filament through the hotend. Titled by websites as Best 3D Printer under $200, the Ender 3 has been a topic of interest for many humans since its creation. a Sep 7, 2022 · My first 3D printer purchase was a Creality Ender 3 V2. ) you must adjust some physical parameters. The new value can be set by sending the Gcode command below to your printer or you can also put it into your printer firmware. Using an ender 3 s1 pro - I am working on tuning it up for printing at 160ms and thought I would try my hand at calibrating E steps, as I had already done resonance testing. All3DP Printables Basics Buyer's Guides News Rapid + TCT 2024 Steps per milimeter. a Extruder e-Steps (2 minutes, need a ruler and a pen or piece of tape) Ensure your bed is level relative to your hot end - a. One way to set your Z Offset is to do it using the display on your Ender 3. Creality V4. If you have any questions at all Nov 24, 2020 · This video is part of a series of 10 videos that go through how to properly calibrate your 3D Printer, the videos include:Calibrating Your 3D Printer Overvie Oct 25, 2023 · A calibration cube is a tool with known dimensions designed to test the printing accuracy of a 3D printer. When it failed to stick filament to the build plate I googled everywhere for the answer, eventually searching for “how to calibrate e steps ender 3” and, after a lot of watching YouTube videos and studying forums, here is the stupid fast solution I found: Manually calibrating the Z Offset is something I’d recommend everyone to do on their Ender 3, but not just if you plan on printing on a Glass bed which would require you to move the Limit Switch up a notch, but also to make sure that you adjust set the limit switch in such a way that the springs under the bed aren’t extremely tight, leaving you with no room to lower the bed, or too loose. Hey guys it's me again! I know it has been a while again. (Prepare -> Auto Home) Feb 26, 2020 · In this video, Calibrating your 3D printer, I'm going to show you how you can calibrate your 3D printer. The steps per millimeter (steps/mm) calculation is used to calibrate the X, Y, Z and E axis of your 3D printer. The printer’s features such as a build volume of 220 x 220 x 250mm, a BuildTak-like heated build plate, power recovery mode, and a tight filament pathway that makes it easier to print with flexible materials are features that people are known to search for even if you want to calibrate XYZ, you should not print something. In this case, the instructions are not directly applicable to you. First Layer Settings. ENDER3 SILENT BOARD. (If you’re looking for resin 3D printer calibration, click Dec 26, 2021 · The rotation distance MD document says to not use a “measure and trim” type of method to calibrate x, y, or z type axes because it’s “not accurate enough. t Mar 2, 2022 · The first layer is the most important part of the print, regardless of the printer. The calculations and adjustments you’ll need goes as follows: E = expected dimension O = observed dimension S = current number of steps per mm. Mar 30, 2023 · Read all about extruder calibration to get great prints! Extruder Calibration: How to Calibrate E-Steps. I even installed an aluminum replacement extruder that I bought at the same time as the printer. Result analysis: Because in the calibration comparison of the actual printing effect, we found that when the layer height is around 20mm, the printing effect will be worse as we go up, so we can conclude that the current value of 20 is the best printing effect, so we It can Sep 26, 2016 · Hi guys,This is our guide on how to correctly check and calibrate the X, Y and Z steps and also the Extruder steps. What You Will Need to Calibrate Ender 3: Before elaborating on this 3d printer calibration guide, let us tell you what tools you will require first to calibrate extruder Ender 3. In that video, I was able to account for the height difference w The <full_steps_per_rotation> setting is determined from the type of stepper motor. th3dstudio. Feb 28, 2022 · Related: Ender 3 dual extruder upgrade. Guide to Perfecting Z-Axis Calibration on Your 3D Printer: The XYZ Calibration Cube is your best friend in this process. I walk through the steps here - Calibrate Your Ender 3 Pro Hot End and Bed Heater: PID Auto Tune (Marlin 2. Trying to work on calibrating my XYZ steps, but the only Feb 20, 2024 · This is true for popular printers like the older Ender 3 series, Ender 5 series, Creality CR-10, Anet A8, and many more. Jan 19, 2023 · Below, you can find a detailed step-by-step guide that you can follow to calibrate the Z-axis offset value of your Ender 3 correctly: Preheat the nozzle and the bed using the built-in functionality in the Ender 3 menu. Calibration walkthrough. 3D Printer E-Step Calibration – The Easy Way! The default E-step value for an Ender 3 is 93, but if you’ve upgraded certain parts, like switching to direct drive, you’ll need to recalibrate to avoid over or under-extrusion. Learn about Ender 3, V2, and Pro calibration to get the best results. ” The problem is that I’ve found that calculating your rotation distance isn’t accurate enough either. You may want to try this setting first. All suggestions welcome. Send an “M92” command to the printer to know the existing value of E-Steps. If you have not done it already, and you want to, you could calibrate your printer. 20mm Calibration ^3 (cube) 1 file(s) 154. If you do set the ESteps with […] Jun 5, 2020 · I did a video a couple of weeks back, where I talked about upgrading to a glass build plate. How to Fix Ender 3 Z-Steps Per Mm; How To Mar 23, 2021 · If the dimensions of your printed objects are out, this video will show how to use a dial gauge to measure and adjust your steps per mm for the X, Y and Z ax PROBE X,Y,Z OFFSETS & TRAVEL LIMITS - CALIBRATE CENTER OF BED AND PROBE MARGINS. short video on how to calibrate your extruder. Discover tips for adjusting screws, leveling the bed, tightening belts, and more. Most Ender 3's e-steps when calibrated using a stock extruder are about the 138 mark. Desired movement = 70mm . Wish to master the XYZ steps? Craft a 20mm XYZ Calibration Cube and assess its precision. Ender 3 E- Step Calibration Formula And Guide Factory Firmware 1. X, Y & Z written on the axis. All you are looking for is how much filament is being moved by the gears with no resistance. The first step in order to test your Ender 3 should be printing an XYZ calibration cube, which is an important test that helps you measure the accuracy of your printer’s dimensions. In this video we're going to calibrate our XY & Z Steps that will make our prints more dimensionally accurate. This is going to give us spectacular results o Apr 30, 2023 · Extruder calibration; Retraction test; 1. Have printed like 6 jobs and they’ve turned out well. Just ask the printer to move 100mm. com/Jyers/Marlin/releasesFollow me on twitter!https://twitter. The exact steps may vary slightly depending on your printer’s firmware, but generally Before starting this test, first calibrate the probe X, Y, and Z offsets as described at the beginning of this document. Note the distance travelled and calculate your new steps. I'll show you how to calibrate the E-steps and flow rate for an Ender 3 or other FDM 3D printer. 1, and MicroSwiss D For use with marlin-based cartesian (XYZ) printers to calibrate the stepper motor movement of X, Y,Z, and Extruder Tools you will need. May 30, 2022 · Another user suggested that before you print the XYZ calibration cube, it is a good idea to first calibrate your 3D printer’s extruder steps/mm. The default slicer profiles you can find online for Creality printers like the Ender 3, CR-10, or Ender 5 will typically have good starting settings which you can use to print out of the box. With these three variables we'll be solving for a 'New M92 value. Jan 30, 2024 · Calibration test-cube for 3D printers. Calibrating Your Creality Ender 3 Pro. We need 3 variables to calibrate our X-axis. 0 steps/mm. A caliper. Using the formula below, multiply the current E-Steps/mm for your machine by the desired amount of filament (100) we asked it to extrude. However it needed some calibration out of the box, as I expected. For the Ender 3 V2, the X- and Y-axes are equipped with screws that allow for easy and rapid adjustments. Love the channel? Consider supporting me on Patreon:https://www. The total time from hitting start (with calibration set to YES) to starting the print was 6 minutes. . E-steps refers specifically to E, the extruder. Preferably Digital and metric. Aug 9, 2021 · You can calibrate the E-steps using the control interface of some printers like the Ender 3, Ender 3 V2, the Ender 5, and plenty more. Dec 25, 2023 · Extruder calibration is essential for producing consistent, high-quality prints. To do this, simply go into your Ender 3 display screen and select “Prepare”, then select “Preheat PLA”. I followed the way it is shown on the video. Once this is done you are able, if your 3D printer allows it, to adjust your Steps per mm in your printers firmware. 1. XYZ steps Calibration Aim: To ensure that when the firmware attempts a certain amount of X, Y, and Z travel, the actual movement of the machine is accurately matches. 87mm This tool is to help you calibrate the ESteps for your 3D printer. - Jul 21, 2019 · This is the Ultimate beginner's guide to the Ender 3! welcome to the channel! this video will show you how to read your calibration cube, to diagnose problem Always do your e-steps with one end of the bowden tube disconnected. 1 mm deviation. I didn't also touch the steps of XYZ because it should be already good. The issue persisted. If you usually 3D print with PLA, you should go with 50°C for the bed and around 200°C for the nozzle. This is a very simple quick process that you can do completel Welcome to the Ender 3 community, a specialized subreddit for all users of the Ender 3 3D printer. Go into “Temperature” and then “Nozzle” For the estep calibration I imagine it was 100%, because the command I used was G1 E100 F100. to/3U7heyc A sharpie or permanent marker. Here is a step-by-step guide on how to calibrate the extruder steps on your Ender 3, 5, or CR-10 3D printer: Calibration Tools. Oct 22, 2022 · To calibrate the XYZ steps of an Ender 3 you can 3D print a 20mm XYZ Calibration Cube. if:e= expected dimensiono = observed dimensions This started with a request by my Patron magruder13: make an all in one calibration video to avoid needing to go through multiple old videos. Prime the printer. Jan 28, 2024 · Hello all, I love my V3 KE. 7. Hi, I’m looking for advice on calibrating my z axis, as I’m coming up short. To make things breezier, download the XYZ Calibration Cube from Thingiverse and hit print. Actual movement = 70. 4. XYZ Calibration Cube. ; In the next step, the printer asks whether you have the steel sheet on the heated bed. I don’t know where the machine value comes from. You want to calibrate using as much travel as possible so at least 200mm. This can be a Creality Ender 3 Pro and Ender 3 or ot I will agree that there is no point doing little cubes, that does not help with trying to calibrate X, Y an Z e-steps. Jul 15, 2017 · Do not calibrate x and y and z steps with your calibration cube. But when I attach the Bowden tube and extrude, the nozzle is all wrong. Follow the steps at calibrating probe Z offset to run the PROBE_CALIBRATE command, TESTZ commands, and ACCEPT command, but do not run SAVE_CONFIG. ~3 minutes of that was the bed warming up, and then it took ~1 minute to calibrate. My prints were terrible before calibration. Other stepper motors are rare. On the Internet, I came up with this formula (machine value x desired value) / measured value of the printed cube. However, you can further optimize these with a bit of testing and calibration to get the best quality out of your printer. You can do this by following the video below. I’ve performed the calibrations such as esteps, flow rate, x and y, and while my test calibration cubes come out nice and clean and good on their x and y axis, I can’t get the z axis calibrated to match. 8 is 200). Before beginning the calibration process, you’ll need to access the calibration menu on your Ender 3 V3 SE. This is the simplest method to calibrate the Z offset on The default e-steps for my new ender 3's extruder were set at 93steps/mm. There are several, factors that can have an impact on your prints dimensions, such as the used filament or a extruder-step-calibration. The first layer of your print lays the groundwork for the rest of your print, and thus its accuracy is With the right calibration, you can unlock the full potential of your Ender 3 Pro and achieve impressive print quality. Just print the cube and measure it from all axes using digital calipers. The XYZ cube came out pretty well, with a couple of exceptions. But, newer Ender 3’s and the Prusa i3 MK3S+ both use direct drive extruders, so there’s no Bowden tube. 3 Analyze calibration results and adjust related parameters 1. Some stepper motors are "0. Divide that number by the filament it actually used (the value we wrote down in the previous step) and we find the correct Extruder Steps for Hi all, I just got myself an Ender 3 V2 a couple of days ago and I'm pretty happy with it. Jan 16, 2022 · Z offset is an important feature to get right. Most stepper motors are "1. k. I checked out my extruder and didn't find any issues. 7 Motherboard）/ Ender-3 V2/ Ender-3 V2 NEO/ Ender-3 V3 SE Jan 14, 2022 · In this video i'm going to show you how to calibrate the E-steps on your Ender 3 v2 3d printer. Jul 13, 2024 · Discover how to precisely calibrate your 3D printer and optimize slicer settings with our comprehensive guide. Calibrate your esteps (or set to 97 if you are using a stock extruder and are lazy) and make sure your first layer isn't being squished hard. Can the calibration (the Settings option) be done once when placing it in its intended print location? (I know it should be done again if I’m running into consistent print failures or I move the printer to a new location). Even the Ender 3s are only great if calibrated correctly. Direct drive is a different beast that uses much shorter retraction distances! Jan 10, 2022 · How to know the mainboard version of your Ender 3? The new Ender 3 Pro and the Ender 3 V2 come with Creality 32 bits silent mainboards, either version 4. Note the reported ¶ 3. If it will not fit, that will not be steps problem but software or bed or extruder. by Alexander Issal. I printed a standart calibration cube, but the z and y axis wre scaled down by approximately a tenth of a millimeter,from 20 mm to 19. Supported tunings: E Steps - calibrating number of steps/mm for E extruder; XYZ Steps - calibrating number of steps/mm for axes X, Y and Z; PID Auto-tune - calibration Proportional gain, Integral gain and Derivative values for hot-end and heated bed; Learn how to calibrate your Ender 3 (V2/Pro) in 6 easy steps for precise 3D printing. 5 preset to 7. Here, enthusiasts, hobbyists, and professionals gather to discuss, troubleshoot, and explore everything related to 3D printing with the Ender 3. However UM made it hard to adjust steps/mm for a very good reason. Make this calibration then print. I did print a new calibration cube with the XYZ steps on Jan 23, 2021 · How to calibrate your E-steps on the ender 3 v2. Teaching Tech is a good site to use. The results don’t seem to fit the X Y offset called for in the menu option / Tool/ Manage printer/ Extrusion 1. If you print an XYZ calibration cube and it ends up with the same look and measurements as the model in the slicer, it’s safe to say that the printer is well-calibrated. …related, is the I'm trying to calibrate my ender 3. I investigate how flow rate actually affects the print's mea Dans cette vidéo, je vous montre comment je calibre ma Ender 3. The process is to have a known target you are trying to reach and then measure the actual value. The return answer will have a value at the end of the statement such as “E93. You can also calibrate your Z offset using a BLTouch or by ‘live-leveling’. 2 Tested A*B/C=V A = desired distance of travel B = e-steps number (defaults on Ender 3 are X: 80; Y: 80, Z: 400, Extruder: 93) C = actual distance of travel V = New value of e-stepCalibration Manual extruding path Menu / Prepare / Move Axis / Extruder / 1mm Oct 27, 2022 · For the original Ender 3 and the Ender 3 Pro, the belts can be accessed by unscrewing the brackets that secure the bearings. 6mm@25mm/s is a very popular number used for retraction on Creality printers with Bowden tube setups and it is the default setting in the Cura Ender 3 Profile as of 4. To ensure proper adhesion and consistent first layers, it is essential to start with a leveled print bed. Update: Since making this video, I have learned of another way to calibrate Marlin Calibration Tools A set of tools to help users with calibration process. 57 KB Download Instructions for Calculator Use First, level your bed. Jun 23, 2023 · Ender 3 (V2/Pro) Calibration: 5 Simple Steps. Check The Cable For Any Tangles; Open The Control Box and Check For Zip-Tied Cables; Use Cable Extenders; Install A Cable Chain For Cable Management; How to Fix Ender 3 Z-Steps Per mm & Calibrate the Z-Axis. 2 . I was getting really bad under extrusion. For the other axes the stock settings will be correct, because they're purely derived from the mechanical properties of the system. This is a quick video guide showing you how to do your e-steps calibration. 2. Whether you're looking for guides on calibration, advice on modding, or simply want to share your latest 3D prints on the Ender 3, this subreddit is Nov 26, 2020 · This video is part of a series of 10 videos that go through how to properly calibrate your 3D Printer, the videos include:Calibrating Your 3D Printer Overvie Many calibrations, bed tramming, z-offset, mesh leveling could be affected by temperature, more on some printers than others. skivu mhdm smbin hfohm boxwz umeiq wvdgu exw edukcyvl zlhtp