Prusa I3 MK3s Hemera Upgrade 3.0

thingiverse

I'd argue that this is the most efficient and hassle-free Hemera Upgrade for your i3 MK3s out there, assuming you're willing to forego the filament sensor. Instructions: 1. Print the parts. 2. Print the Hemera fan shroud of your choice (I recommend using this one: https://www.thingiverse.com/thing:4031637). 3. Remove your old extruder and filament sensor. 4. Replace the old wiring with the Hemera wires. 5. Swap out the X Carriage. 6. Attach the mounting plate to your Hemera. 7. Slide the extruder into place and secure it with a screw. 8. Secure PINDA in its position. 9. Attach fan shroud. 10. Adjust E-Steps in the printer terminal: M92 E786.5 // sets your extruder to 786.5 steps/mm M500 // save settings 11. Do a Z calibration and a first layer calibration. 12. Done! Instructions with photos: https://imgur.com/a/45Vc4Xh About: This mod alters the PINDA position to X +30.6 and Y +11.6. I tested Z- and first layer calibration with the stock firmware. Mesh leveling might be a tiny bit off, but it doesn't significantly impact print quality. A modified Firmware with changed probe position and mesh coordinates is ready for download here. My previous version required replacing the Z axis parts on the right, which involved quite some effort to do. This mod optimizes the extruder placement to make use of the full printing space without much hassle. If you want to add your filament sensor back in, there's a STEP file for modifying. I didn't upload my Fusion project because I referenced some parts/files that I'm unsure about the licensing of (and it got messy). Forum Thread: https://forum.prusaprinters.org/forum/original-prusa-i3-mk3s-mk3-user-mods-octoprint-enclosures-nozzles-.../hemera-upgrade-3-0/ Compiled firmware included: Version 3.9.0 for Prusa MK3s Changes done: #define MESH_MIN_X 31 #define MESH_MAX_X 228 #define MESH_MIN_Y 12 #define MESH_MAX_Y 210 and #define X_PROBE_OFFSET_FROM_EXTRUDER 30.6 // Z probe to nozzle X offset: -left +right #define Y_PROBE_OFFSET_FROM_EXTRUDER 11.6 // Z probe to nozzle Y offset: -front +behind to this configuration: https://github.com/prusa3d/Prusa-Firmware/blob/MK3/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h (here you can see the default values) I added the modified and compiled firmware as a .hex file, since I ran into so much trouble compiling it. Use the Firmware Updater in PrusaSlicer or in Octoprint to flash it. The firmware is under GNU GPL license. Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm. https://prusa3d.github.io/Prusa-Firmware-Doc/ https://github.com/prusa3d/Prusa-Firmware