Bowden MK3 R3 X-carriage for the Anycubic I3 Mega

thingiverse

###UPDATE 15.02.19:### + Tolerances for X_Carriage files are now more relaxed, and old style Belt mount versions have been added. Make sure to flip the X direction for those (V2). Thanks to Lukasz Mach on Facebook for the help. ### So what is it? ### This redesigned X-carriage was created mainly from the Prusa I3 MK3 R3 extruder, Bowden X-Carriage Mount for E3D V6, and Anycubic I3 Mega Prusa i3 X-Carriage Converter. It allows you to use pretty much any Prusa I3 MK3 fan mounts and fan ducts. ### Why should I use it? ### It was designed so that you can use the new (R3) and old (R2) styles, making you aren't locked into just one design. This newest R3 revision also has more air going to the heatsink, preventing heat creep or clogging. ### So what do I need? ### + An E3D V6 hotend, or a clone + 4x LM8UU bearings, Igus RJ4JP-01-08 bushings or RJMP-01-08 bushings + BLTouch or a clone if you want to use auto bed leveling + Mostly M3 screws and nuts + Some M4 screws and nuts ### Why are the parts oriented the way they are? ### The X-Carriage files are printed with a brim to make them last longer. If you print them flat, there's a high chance the bushing clamps would snap. ### Anything else I need to print? ### Yes, you're still missing a few parts that I either didn't modify or made separate. You'll need a fan mount and fan duct, as well as a Ratcheting Belt Tensioner modified knob and Bowden MK3 R3 Cable Chain for the Anycubic I3 Mega. ### How do I assemble it? ### The hardest part is getting the X-Carriage plate on the printer. You'll need to loosen the screws that hold X smooth rods in place, move the rod a bit to a side, slide on the new part with bearings in place, and put everything back together. Remember to only do one rod at a time. ### Now the big question. How do I install the BLTouch? ### Thankfully there's already a tutorial available for installing the BLTouch on an Anycubic I3 Mega. You'll need to use a different firmware that has the correct offsets, which can be found here.