E3D-v5 Fan Dual Assembly for Makergear M2

pinshape

UPDATE: Check out the latest version of this (http://www.thingiverse.com/thing:533029) for improved performance and longer lifespan. I've been using the new nozzle design for over 3 months without any signs of warping, so please use it instead of the old one which may warp after a month or so of use. This is an E3D fan solution designed specifically for the MakerGear M2, featuring built-in supports that minimize cleanup. I was inspired by the elegant and effective design of an Ultimaker E3D mount model (http://www.thingiverse.com/thing:121074), which I adapted to suit my needs. The modified model includes a few key changes: I etched lettering onto the nozzle duct to identify the diameter, added an attachment point for the larger fan duct, and kept the fan and hot end consistently oriented using the E3D v4 fan duct design (http://www.thingiverse.com/thing:52506). I've encountered very few issues with this design, but you may need to work a bit to get the E3D installed on the filament guide due to its tight fit with the restrictor plate in place. However, I've been testing this for about three months without any failures due to warping. Please note that even with proper installation, the cooling duct is still prone to warping over time, although it should not affect performance. Additionally, E3D recently made design changes to the heater blocks that impact the position of the heater cartridge and nozzle. I've updated the design to accommodate both old and new block versions (version 2). Before printing, ensure you identify the version of your block as they differ significantly. You may need to adjust your melt temps by ~10-15°C or reduce your cooling to 20% (45% max) for optimal performance. EDIT: I uploaded a new set of ducts with a slightly shorter restrictor plate at the top, making it easier to install the hot end into the filament guide. I also included a version without the restrictor plate - "E3D Duct wo Plate.stl". Instructions: Print the nozzle version that matches your hot end block (refer to the photo). The modified E3D fan duct has built-in support, so print all parts without support. I've included versions of the E3D duct with nozzle diameter sizes engraved for easy identification. You can also use a plain one if you prefer. Assembly is straightforward: pass the E3D hot end (with thermistor and heater cartridge installed) onto the E3D duct, then bolt the nozzle onto the E3D duct using 2 22mm M3 bolts. The assembly fits onto the filament guide tightly, but it should fit without fine-tuning. I recommend using a Noctua 40X10mm A-series fan as they are quiet and emit no vibration buzz that cheaper fans can produce. If you have any requests or suggestions for improvements, feel free to drop a comment. Good luck with this design, and I hope it helps you make better prints.