- What filaments do you use, and what is your usual volumetric flow rate (mm³/s)?
Pla, silk pla, pla-cf, Petg, petg-cf, petg-gf, tpu, abs, abs-gf, pc-abs, pvb, abs-fr, asa (and wood filled, metal filled, glow etc etc.).
Mm³/s? I can’t say because I’m currently traveling 
- Have you ever disassembled, installed, or tuned the hotend assembly on your printer?
Oh yea!
- Have you used other high flow hotends? (e.g., CHT 0.6mm brass)
Yea but not with U1 yet.