This set of parts is for the Anycubic I3 Mega with Ultrabase.
A hotend enclosure to replace the existing metal housing.
A hotend base cover to the new enclosure.
And a parts cooler that pairs with a 5015 blower fan (used Winsinn)
NOTE: To use this new enclosure, M3 nuts and bolts will have to be used in addition to the existing ones. A 5015 blower fan will also be needed to replace the stock blower.
Once printed, remove any support material, including the thin crossbar at the base of the back of the enclosure.
Press and or glue M3 nuts into each of the four holes found on the enclosure.
Remove the existing hotend enclosure, wire in the 5015 blower fan, and bolt both the stock 40mm case fan and 5015 blower fan to their respective locations on the new encloure. Note: The 40mm fan should blow air into the enclosure and the 5015 blower will pull this air into it across the cooling fins and force it down towards the extruder tip/nozzle.
Snap the new hotend enclosure base cover onto the base of the new hotend enclosure, ensuring a tight fit all around.
Install the enclosure assembly onto the carriage using M3 bolts for all four M3 nut locations.
Lastly, install the parts cooler by pressing the adapter into the 5015 blower fan outlet.
Update (2/6/19): Added new part cooler (my preference). With blower at 100%, I have achieved consistent bridging at 100+ mm unsupported.
Any PLA and ABS
Make sure to orient all parts properly for a successful print.
Keep the print speed low (50-60mm/sec) and the extruder temperature higher (210-220C) for lessened chance of breaking the model during print as one rear mount is open and exposed for a large portion of the print.
Use ABS for the Hotend Base Cover and Parts Cooler due to the high temperatures in these regions.
Use PLA or ABS for the Hotend Enclosure. Either will work fine.