Good evening folks.
So i know there have been multiple threads on this topic, but i dont know if the solution im using has been used fully yet or not, so i wanted to bring it up.
I am using a piece of aluminum tubing.
KS Engineering from Ace Hardware - its 1/8 x .014 Stock # 8102
It measures 58.5mm as its cut to fit in my extruder.
Ive got some video footage of me installing it and showing it, if someone wants it, or think it would help.
So I had to sand down about 15mm of the tube to allow it to fit all the way from the top of the hex to the hotend part (heating chamber). The rest goes all the way up to the hobbed bolt. This also doubles as a way to print 1.75mm flexible filament, as its guided the moment it comes out of the hobbed bolt all the way to the nozzle.
Ive printed the following temp tower with PLA (just 1 temp) and it came out perfectly. Ill continue to test to see if i have any issues at all using it, but it should be solid.