Titan Extruder for the Anycubic I3 Mega, Prusa i3

thingiverse

# Titan Extruder for the Anycubic I3 Mega, Prusa i3 This Thing turns your Anycubic I3 Mega from a bowden to a direct drive extruder printer. https://www.youtube.com/watch?v=PVOJr0LqMk0 I was mostly inspired by petrzmax's [Goliathus Extruder - Anycubic I3 Mega, Prusa I3](https://www.thingiverse.com/thing:2894777). I wanted to use the Prusa fan duct which is very effective and tried to remix the Goliathus extruder but ran into too many problems so I finally decided to recreate the whole thing from scratch. So this is a complete new design. ## Things I have changed in this design * Moved the hotend fan to the right side, because I could not get it to work with the printer X-endstop switch on the left. The switch was touching the spinning fan wings. * Adjustable X-endstop * Prusa fan duct. This was the most important change for me because the Prusa fan duct is very effective. No additional mount adaptors needed. ## What do I need? * Titan Extruder or clone (I use the TriangleLab) with pancake stepper motor * V6 Hotend or clone * 50x50x15 parts cooling fan * 40x40x10 hotend cooling fan * 2 M3x8 screws for the Nema-17 mount * 2 M3x8 screws for the BLTouch (optional) * 4 M3x20 screws for the X-carriage * 7 M3x10 screws (hotend fan, fan duct, parts cooling fan, adjustable X-endstop) * M3 nuts * 4 M3 washers ## What else do I need to print? * X-Carriage: [Anycubic I3 Mega Prusa i3 X-Carriage Converter](https://www.thingiverse.com/thing:3495652) * Prusa fan duct or derivative. This one works great: [Prusa Mk3 fan duct (Includes double mount adaptor)](https://www.thingiverse.com/thing:3009290). You only need to print the fan duct, no mount adaptors. ## BLTouch If you want to use BLTouch just print the Nema-17 holder with the integrated BLTouch mount. Use these offsets in `Configuration.h`: X_PROBE_OFFSET_FROM_EXTRUDER -31 Y_PROBE_OFFSET_FROM_EXTRUDER -5 Z_PROBE_OFFSET_FROM_EXTRUDER 0 **Note:** I don't use BLTouch so this is untested. Let me know if there are any issues. ## Assembly 1. Insert the M3 nuts into the Nema-17 mount. This is important, if you forget them you have to disassemble the whole thing later! 2. Insert the 4 M4 nuts for the X-carriage into the base 3. Follow the instructions to assemble the [V6 Hotend](https://wiki.e3d-online.com/E3D-v6_Assembly) and the [Titan Extruder](https://wiki.e3d-online.com/Titan_Assembly) 4. Mount the cover and the adjustable X-endstop. This should be pretty straight forward, the photos will help. 5. Assemble the fan duct and the parts cooling fan 6. Mount the hotend fan with 4 M3x10 screws, the screws are directly screwed into the plastic 7. Mount the whole thing onto the X-carriage with 4 M3x20 screws and washers from the carriage side. 8. Adjust the X-endstop with the adjuster When everything is in place and working you need to calibrate the extruder. Expect a much higher value for the E-steps (around 440-450) because of the gear ratio. ## Changelog ### 2019-11-23 - Redesigned the base and the cover to increase the clearance of the fan duct ### 2019-05-03 - Redesigned the base and the cover to improve the air flow of the hotend cooler ### 2019-04-27 - BLTouch mount - Cable tie holders in the base - Relaxed the tolerances of the Nema-17 mount