Prusa Modular Mk3 Volcano Extruder - Cyclops Extruder

thingiverse

A while ago, I designed a Mk3 style modular extruder that adapts seamlessly to the standard Prusa frame, allowing for effortless nozzle size changing. Since then, I've created a full set of extruders and am happily swapping them between my Prusas with ease. I've also designed a cyclops bondtech extruder which fits perfectly on the back plate, although I was never thrilled with the performance of the hotend. Printing primarily in PETG, I continually encountered back pressure issues that caused jams, but it might work fine if you're only printing PLA. I'm extremely happy with the regular titan extruders, as I can comfortably print at 50mm/s using a 1mm nozzle. I have different versions of the rear plate available, one which moves the exiting wires to the top to help prevent wire drooping over long axes, and another with exit wires in the center like a normal Mk3. The extruders slide effortlessly on and off the back plate using pins for alignment, then 3 M4 screws securely lock the extruder in place. Required Hardware: 2 x 4x24mm pins 2 x M3 40mm screws 2 x M3 locknuts 4 x M3 square nuts 6 x 25mm self-threading screws 4 x 10mm self-threading screws 3 x M4 16mm screws 3 x M4 nuts 1 x 40mm cooling fan 1 x 50mm blower fan 1 x BL-touch Bondtech extruder gears E-3D Titan Hotend Nema-17 The extruder is assembled just like the regular Mk3 extruder, then simply solder quick disconnects between the back plate and extruder to enable easy swapping. With the BL-touch, it's incredibly fast to re-level the bed height to account for the size difference between nozzles. I currently have an extruder for 0.6, 0.8, 1.0, and 1.2mm nozzles, allowing me to switch between them to vary strength/detail in parts, which has been extremely useful.