Anycubic i3 Mega

What type of nozzle do i need to buy cause i have no idea

Anycubic tech support is non-existent. I want to anneal a piece I made out of it and I don't know how specific I need to be. I'm reading, in general:

To anneal PLA, it must be heated to a temperature that is above the glass transition point of the plastic, which is around 60°-65° Celsius (140°-150° Fahrenheit), and below the melting point, which is around 173°-178°C (343°-352°F)

I figured I'd ask Anycubic, specifically, about their PLA but I've got no answer from them. Nor any of my other questions to them, really.

Thanks!

Greetings All!
Looking for a file or replacement part for the small black "ferrule" part that seats into the I3omega extruder. This is the part that you thread the filament into and it feeds into the tube before the hot end. It comes out every time you change the filament. Lost mine and my printer is misbehaving... can you help??
Thanks

BLTouch on Anycubic I3 Mega (Version 2 with ultrabase) - Needs to be 8 bit version
What you need is a BLTouch probe (Affiliate link, consider buying from here if you want to give some support to this: http://s.click.aliexpress.com/e/Qr72FaY) - Cheapest price I could find, and was the one I used to code the firmware with.

Make this mount in ABS/High heat tolerant filament, and install it as per his instructions (as far away as possible from hotend) using m3 screws and nuts
https://www.thingiverse.com/thing:2824005
Credit to Petrzmax

Download the PDF for clear instructions and images on how to install the BLTouch to the anycubic I3 Mega

Link to firmware using Marlin 1.1.8 with ABL enabled. Firmware also uses Z-endstop for G28 command to level bed, and G29 uses BLTouch to measure bed surface.
Flash this firmware: https://www.dropbox.com/sh/igl7ny8afryajq1/AADOUzbKtO8QfU5q04TysJdna?dl=0
It will use BLTouch 5 x 5 point grid
Original firmware based off derhopp and beaving - uses latest marlin build

And usual disclaimer do this at your own risk, but works well for me
PDF of instructions attached to this group

Link to facebook discussion group:
https://www.facebook.com/groups/122568018406103/permalink/164536894209215/

For those of you who want to play with the firmware, the uncompiled version is here:
https://www.dropbox.com/sh/stfyx6pmew2cwir/AABJQFy3XqVwAQRFrmpxkupia?dl=0