I took one for the team, and suffered through working with a Creality S1 Printer, that had the bad layer lines problem. I worked through countless potential causes, to come up with a laundry list of items, for you to check, in order to solve the problem, and get back to Quality prints! This applies to many other 3D Printer Models as well! Take a seat next to your printer, press the play button, and let's do this... Sandisk 32gb High Endurance MicroSDHC: https://amzn.to/3XFwQHG TEST MODEL: https://1drv.ms/u/s!AsUNEpEglKSchshUt... Pro Firmware: https://github.com/mriscoc/Ender3V2S1 Official S1 Manual: https://1drv.ms/b/s!AsUNEpEglKSchshm8... Help the channel, use my links: Amazon: http://amzn.to/2miGQq9 Amazon: http://amzn.to/2miGQq9 Creality: https://crealityofficialstore.sjv.io/... Bambu Lab: https://tidd.ly/4oUwVoV Anycubic: https://tidd.ly/48ztlJY Prusa: https://www.prusa3d.com/#a_aid=3DRundown Biqu/BTT: https://tidd.ly/4oW4WVW Sovol: https://tidd.ly/3Y6UsYb Sunlu: https://bit.ly/413z6xq FlexiSpot Powered Desks: https://tidd.ly/4p5tCL3 XTOOL: https://xtool.pxf.io/KB4Dge LaserPecker: https://tidd.ly/4qXWIO9 LEVOIT Direct: https://get.aspr.app/SH1kGd Microswiss: https://store.micro-swiss.com/greggce... Landu: https://amzn.to/47IU7iq E3D: https://e3d-online.com/?aff=46 Send a TIP: Click the "ðTHANKS" button, or Venmo.com/gregg-cerenzio Become a Member, by clicking "JOIN", or this link:    / @3drundown  Learn with me! My 3D Printing Udemy Course: 3DRUNDOWN.COM CURARUNDOWN.COM BAMBURUNDOWN.COM Support me via Patreon: patreon.com/3drundown Model by the Wonderful Mr. 3D PRINTY: https://www.thingiverse.com/thing:573... Upgrade your Printer: Capricorn Boden Tube: https://amzn.to/3wOAT8X Creality Official Metal Extruder: https://amzn.to/3JBeguj Nozzle Cleaning Kit: https://amzn.to/3JsK307 Razor Tool, for easy Stubborn Print Removal: https://amzn.to/3pQ7Jnr Get The Smart Kit Here: https://amzn.to/328eBDr Get a CR-TOUCH Here: https://amzn.to/3oWhrnK My "Must Haves" Amazon 3D Printer List: https://a.co/5RxTkYl Find me on Facebook:   / greggadventure  Find me on Instagram:   / greggadventure  Find me on Etsy: https://www.gaetsy.com #3dprinting #ender3s1 #creality