Ender 3 - compact Hemera mount plate with BLTouch

thingiverse

I mounted my Hemera Extruder on an Ender-3 carriage using a custom mount plate. Initially, I used Joe Casha's mount plate but found it to be a bit 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 compact mount plate instead. Tolerances are quite tight so your printer needs to be well dialed in. Besides the stock parts, you need four M3x6 bolts and four M5 washers. Here's how to assemble it: Take apart the existing hotend and x carriage. Remove the three wheels from the carriage. Add three M5 nylock bolts to the matching holes on the plate. Mount the Hemera to the plate using the M3x6 bolts. Press the metal carriage into the two holes on the mount plate. Prepare the three bolts by adding two washers, a wheel and a metal spacer to each of the two bolts for the top wheels. Add the original washer, a wheel and the eccentric nut to the bolt for the bottom wheel. Hold the extruder and carriage up to the printer and mount the three wheels to the carriage. Adjust the eccentric nut until the carriage does not wobble but moves freely. Attach BLTouch and fan. I use this fan duct. To modify your Marlin firmware, add these lines: #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