Interestingly I could print smaller ASA parts on my i3 clone with an ultrabase bed unenclosed without much of any warping. Granted, it was leveled way too low… my Voron has a great first layer and no elephants foot, but… it needs to be enclosed for most anything ASA and preheated for moderately large prints. Makes it hard to print the enclosure clips, so back to cardboard it is.
I had no issues feeding filament with a 1 kg spool on the stock spool holder and no PTFE tube. Moving to a 3 kg spool and a PRFE tube has been a bit of a journey, but my old i3 spool holder on a desk and the PTFE tube ziptied to the factory spool holder had me up and running. I did have one print fool because the filament seems like it broke in the PTFE tube, but that seems to have been a one off so far…
Nice! Too bad they don’t make transparent cardboard 😂
If I had better quality masking tape on hand I would be halfway tempted to leave the sides in place. Taping on the mounting tabs, inserting the magnets, etc is somewhat tedious.
The real chicken and egg is going to bye printing the filter. Iit will help preheat the chamber to prevent warping, but it’s a fairly large print that would really benefit from some air moving under the bed to preheat the chamber so it doesn’t warp. I’ll probably let the printer heat soak for a while beforehand.