Ender 3 - compact Hemera mount plate with BLTouch

prusaprinters

<p>Compact mount plate for mounting the Hemera Extruder to an Ender-3 carriage.</p> <p>I initially mounted my Hemera Extruder using <a href="https://myminifactory.com/object/3d-print-ender-3-e3d-hemera-mount-105802">Joe Cashas mount plate</a>, but found it a bit to wobbly because the motor part was placed to the right of the Ender mount plate and only fastened in three places. So I designed this instead. Tolerances are quite tight so your printer needs to be dialed in well.</p> <p>Besides the stock parts, you need 4 M3x6 bolts and 4 M5 washers.</p> <p>Instructions:</p> <ul> <li>Take apart the existing hotend and x carriage. Remove the three wheels from the carriage. </li> <li>Add the 3 M5 nylock bolts to the matching holes on the plate.</li> <li>Mount the Hemera to the plate using the M3x6 bolts</li> <li>Press the metal carriage into the two holes on the mount plate.</li> <li>Prepare the three bolts:<br/> Add two washers, a wheel and a metal spacer to each of the two bolts for the top wheels.<br/> Add the original washer, a wheel and the eccentric nut to the bolt for the bottom wheel.</li> <li>Hold the extruder and carriage up to the printer, and mount the 3 wheels to the carriage. </li> <li>Adjust the eccentric nut until the cariage does not wobble but moves freely.</li> <li><p>Attach BLTouch and fan. I use <a href="https://www.thingiverse.com/thing:4042492">this fan duct</a>.<br/> Marlin firmware changes (on my machine - yours may need other values!):</p> <p>#define NOZZLE_TO_PROBE_OFFSET { 64, 0, -1.00 } #define X_BED_SIZE 235 #define Y_BED_SIZE 225 #define X_MIN_POS -18 #define Y_MIN_POS -12</p> </li> </ul>