Prusa I3 MK3s Hemera Upgrade 3.0

prusaprinters

<p>I'd claim that this is the best and easiest Hemera Upgrade for your i3 MK3s out there if you're willing to leave the filament sensor away.</p> <p><em>Instructions</em></p> <ol> <li>Print the parts. (The bracket is meant to be printed with the flat side facing down) </li> <li>Print the Hemera fan shroud of your choice. (I recommend using this one <a href="https://www.thingiverse.com/thing:4031637">https://www.thingiverse.com/thing:4031637</a>)</li> <li>Remove your old extruder and filament sensor.</li> <li>Replace the old wiring with the Hemera wires.</li> <li>Replace the X Carriage.</li> <li>Attach the mounting plate to your Hemera.</li> <li>Slide the extruder into place and secure it with a screw.</li> <li>Secure PINDA in it's place.</li> <li>Attach fan shroud.</li> <li>Adjust E-Steps in the printer terminal:<br/> M92 E786.5 // sets your extruder to 786.5 steps/mm<br/> M500 // save settings</li> <li>Do a Z calibration and a first layer calibration.</li> <li>Done!<br/> More detailed instructions will follow in the prusa forums.</li> </ol> <p>Instructions with photos: <a href="https://imgur.com/a/45Vc4Xh">https://imgur.com/a/45Vc4Xh</a></p> <p><em>About</em></p> <p>This mod changes the PINDA position to X +30.6 and Y +11.6.<br/> I tested Z- and first layer calibration with the stock firmare. Mesh levelling might be a tiny bit off obviously, but doesn't really impact print quality. A modified Firmware with changed probe position and mesh coordinates ready to download over on thingiverse (<a href="https://www.thingiverse.com/thing:4510337">https://www.thingiverse.com/thing:4510337</a>).</p> <p>My previous version requred to replace the Z axis parts on the right, which required quite some effort to do. This mod here optimised the extruder placement to make use of the full printing space, without much hassle.</p> <p>If you want to add your filament sensor back, there is a STEP file for modifying. I didn't upload my fusion project because I referenced some parts/files that I don't know the licencing of (and it got a bit messy).</p> <p>Forum Thread: <a href="https://forum.prusaprinters.org/forum/original-prusa-i3-mk3s-mk3-user-mods-octoprint-enclosures-nozzles-.../hemera-upgrade-3-0/">https://forum.prusaprinters.org/forum/original-prusa-i3-mk3s-mk3-user-mods-octoprint-enclosures-nozzles-.../hemera-upgrade-3-0/</a></p> <p><em>Compiled firmware included</em></p> <p>Version 3.9.0 for Prusa MK3s</p> <p>Changes done:</p> <p><code>#define MESH_MIN_X 31</code></p> <p><code>#define MESH_MAX_X 228</code></p> <p><code>#define MESH_MIN_Y 12</code></p> <p><code>#define MESH_MAX_Y 210</code></p> <p>and</p> <p><code>#define X_PROBE_OFFSET_FROM_EXTRUDER 30.6 // Z probe to nozzle X offset: -left +right</code></p> <p><code>#define Y_PROBE_OFFSET_FROM_EXTRUDER 11.6 // Z probe to nozzle Y offset: -front +behind</code></p> <p>to this configuration:</p> <p><a href="https://github.com/prusa3d/Prusa-Firmware/blob/MK3/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h">https://github.com/prusa3d/Prusa-Firmware/blob/MK3/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h</a></p> <p>(here you can see the default values)</p> <p>I added the modified and compiled firmware as .hex file, since i ran into so much trouble compiling it. Use the Firmware Updater in PrusaSlicer or in Octoprint to flash it.</p> <p>The firmware is under GNU GPL licence. Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm.<br/> <a href="https://prusa3d.github.io/Prusa-Firmware-Doc/">https://prusa3d.github.io/Prusa-Firmware-Doc/</a><br/> <a href="https://github.com/prusa3d/Prusa-Firmware">https://github.com/prusa3d/Prusa-Firmware</a></p> <h3>Print instructions</h3><p><strong>Supports:</strong> Yes</p> <p><strong>Resolution:</strong> 0.2</p> <p><strong>Infill:</strong> 30</p> <p><strong>Filament:</strong> PETG</p> <p><strong>Notes:</strong></p> <p>Use support in the regions mentioned in the picture above.</p>