Velleman Vertex K8400 auto bed leveling add-on

thingiverse

With this add-on, you can unlock Marlin's auto bed leveling feature on your Velleman Vertex K8400 3D printer.\nIn order to harness its full potential, several key modifications are required:\nPrint the STL files for the servo holder and micro switch arm, and prepare them for installation.\nSolder a 2x9 PCB connector with a wire linked to the SS pin of the LCD panel.\nThe unused SS pin provides a safe haven for our hack, eliminating the need for any mainboard modifications.\nSecure the servo in its custom-made holder using screws or other fastening methods, followed by soldering necessary wires to both the servo and microswitch.\nNext, carefully mount the microswitch on its accompanying arm.\nMount the entire assembly using M3 screws onto the designated spot where a secondary print head would normally be attached.\nAs an added precaution, supply a separate 5V power source (such as a dedicated 7805 module) to fuel the servo.\nFor increased signal integrity, consider extending two PCB traces to connect both the servo and microswitch signals.\nCarefully verify all connections before moving forward.\nOnce ready, reflash your printer's firmware for optimal compatibility.\nAdjust the PROBE OFFSETS and SERVO ANGLES within Configuration.h if any discrepancies arise.\nTo finalize testing, initiate the following sequence:\nFirst, run G28 to command the print head back home,\nImmediately follow with a command of G29, prompting auto bed leveling calculations.\nThe STL file for the micro switch arm can be sourced here: http://www.thingiverse.com/thing:902402\nTo further refine this mod or share impressive results, feel free to contribute.\nNote that the author bears no responsibility in the event of any harm to your printer.\nPrint Parameters:\nModel: Velleman Vertex K8400 3D Printer Raft Status: Off Support Settings: Resolution: 0.2 mm Infill Percentage: 25% Tips for Success: Cooling is essential