What Type Of Filament To Use?, Print Fast Like Nathan, Part Cooling and Much More!!

Todays Questions:

Jim From Nashville

Hey guys! I am wanting to build a voron 2.4 from a Fysetc kit, and I have always questioned that the printed parts need to be ABS. If I am not going to use an enclosure or print ABS, do I need to print the parts in ABS? How about a general discussion of the 3 main types of filament (PLA, PETG and ABS)? I have an Ender 3 that is pretty modified, but I have never been able to print ABS successfully.

Aaron from Boston

I really want to print fast like Nathan! I have an Ender 3 S1 pro and I think one of the things that I am having trouble with is the parts cooling fan. It’s pretty small and seems to have trouble whenever I kick up the speed a notch in Marlin. How important is having powerful parts cooling fans? How about the different types of filament?